A Prospective, Randomized, Controlled, Multi-Center, Double Blind Study of ClariVein RES for Treatment of Venous Insufficiency Associated With Incompetent Saphenous Veins Due to Superficial Venous Reflux
Phase: PHASE2
Conditions: Venous Insufficiency
Sponsor: Vascular Insights, LLC

VICARES   
CLINICAL STUDY PROTOCOL - CL-001 
Study Name: 
VICARES 
Study Title: 
A Prospective, Randomized, Controlled, Multi-Center, 
Double Blind Study of ClariVein RES for Treatment of 
Venous Insufficiency Associated with Incompetent 
Saphenous Veins due to Superficial Venous Reflux 
Study Phase: 
Phase 2/Pilot 
Study Product Name: 
ClariVein RES 
IND Reference 
Number: 
128303 
Sponsor: 
Vascular Insights, LLC 
1 Pine Hill Drive 
Two Batterymarch Park 
Suite 100 
Quincy, MA 02169 
Telephone: 203-446-4953 
Protocol Version: 
1.1 
Amendment Version:  
Release Date: 
0.0 
11 July 2017 
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INVESTIGATOR AGREEMENT 
I have read this protocol and agree that it contains all necessary details for carrying out this 
study. I will conduct the study as outlined herein and will complete the study within the time 
designated. This trial will be conducted according to all stipulations of the protocol, including 
all statements regarding confidentiality, and according to local legal and regulatory 
requirements and applicable United States federal regulations and International Council for 
Harmonisation (ICH) guidelines. 
I will provide copies of the protocol and all pertinent information to all individuals responsible 
to me who assist in the conduct of this study. I will discuss this material with them to ensure 
they are fully informed regarding the drug and the conduct of the study. 
I will use only the informed consent form approved by the Sponsor or its representative and will 
fulfill all responsibilities for submitting pertinent information to the Institutional Review 
Board/Independent Ethics Committee (IRB/IEC) responsible for this study. 
I agree that the Sponsor or its representatives shall have access to any source documents from 
which case report form information may have been generated. I agree that regulatory authorities 
(FDA, EMA, and other local and country-related agencies) can audit and review source 
documents. 
I further agree not to originate or use the name of Vascular Insights, LLC or any of its 
employees, in any publicity, news release, or other public announcement, written or oral, 
whether to the public, press, or otherwise, relating to his protocol, to any amendment hereto, or 
to the performance hereunder, without the prior written consent of Vascular Insights, LLC. 
  
  
 
____________________________________________________________ 
Investigator’s Signature 
 
_____________ 
Date 
  
 
___________________________________________________________________________ 
Name of Investigator (Typed or Printed) 
  
 
___________________________________________________________________________ 
Institution Name 
  
 
___________________________________________________________________________ 
Institution Address 
 
 
 
  
Page 3 of 101

CONTACT INFORMATION 
Sponsor: 
Vascular Insights, LLC 
1 Pine Hill Drive 
Two Batterymarch Park 
Suite 100 
Quincy, MA 02169 
Telephone: 203-446-4953 
Sponsor Contact: 
Lorraine M. Hanley, BS, MBA 
Vice President, Clinical and Regulatory Affairs 
Vascular Insights, LLC 
Telephone:  617-519-1109 
E-mail: lhanley@vascularinsights.com 
Sponsor Medical Monitor: 
Stephen R. Mascioli, M.D. 
Vice President, Medical Affairs 
Vascular Insights, LLC 
Telephone: 952-994-1448 
E-mail:  srmascioli@vascularinsights.com 
 
CRO: 
Advanced Clinical 
10 Parkway North, Suite 350 
Deerfield, IL 60015 
Telephone: 919-274-0774  
CRO Contact: 
Shannon Archer 
Project Manager 
10 Parkway North, Suite 350 
Deerfield, IL 60015 
Telephone: 919-274-0774  
Fax: 847-267-1432 
Email: sarcher@advancedclinical.com 
Page 4 of 101

TABLE OF CONTENTS 
INVESTIGATOR AGREEMENT.................................................................................... 2 
CONTACT INFORMATION ........................................................................................... 3 
PROTOCOL SYNOPSIS ................................................................................................. 9 
LIST OF ABBREVIATIONS AND TERMS ................................................................. 13 
List of Abbreviations ...................................................................................................... 13 
List of Terms and Definitions ......................................................................................... 14 
1. 
BACKGROUND ......................................................................................... 16 
1.1. 
Rationale ...................................................................................................... 17 
2. 
STUDY DRUG AND DELIVERY SYSTEM ............................................ 19 
2.1. 
Study Product............................................................................................... 19 
2.1.1. 
Study Drug - Sodium Tetradecyl Sulfate (STS) .......................................... 19 
2.1.2. 
Delivery System - ClariVein® ..................................................................... 19 
3. 
STUDY OBJECTIVE .................................................................................. 20 
3.1. 
Objectives and Endpoints ............................................................................ 20 
4. 
STUDY DESIGN ........................................................................................ 22 
4.1. 
Treatment Arms ........................................................................................... 22 
4.2. 
Study Periods ............................................................................................... 22 
4.2.1. 
Screening/Baseline Period ........................................................................... 23 
4.2.2. 
Treatment Day ............................................................................................. 23 
4.2.3. 
Post Treatment Follow-up (FU) Period ....................................................... 23 
4.2.4. 
Definition of End of Study .......................................................................... 23 
4.2.5. 
Study or Site Termination ............................................................................ 23 
5. 
ELIGIBILITY CRITERIA .......................................................................... 24 
5.1. 
Inclusion Criteria ......................................................................................... 24 
5.2. 
Exclusion Criteria ........................................................................................ 24 
6. 
TREATMENT OF PATIENTS ................................................................... 27 
6.1. 
Study Treatment ........................................................................................... 27 
6.2. 
Study Duration ............................................................................................. 27 
6.3. 
Potential Drug Interactions/Allergies .......................................................... 27 
6.4. 
Prior and Concomitant Treatment(s)/Therapy ............................................. 27 
6.5. 
Prohibited Concomitant Procedures/Therapies/Medications ...................... 28 
6.6. 
Patient Numbering, Treatment Assignment or Randomization ................... 28 
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6.6.1. 
Subject Numbering ...................................................................................... 28 
6.6.2. 
Double Blind - Study Drug .......................................................................... 28 
6.6.3. 
Emergency Breaking of the Study Blind ..................................................... 28 
6.7. 
Preparation, Dispensing, and Storage of Clinical Supplies ......................... 28 
6.8. 
Study Drug and Device Accountability ....................................................... 28 
7. 
VISIT SCHEDULE AND ASSESSMENTS ............................................... 29 
7.1. 
Study Visit Schedule and Assessments ....................................................... 29 
7.2. 
Pre-visit Patient Instructions ........................................................................ 31 
7.3. 
Screening (Visit 1) ....................................................................................... 31 
7.4. 
Baseline (Visit 2) ......................................................................................... 31 
7.5. 
Day of Treatment (Visit 3) .......................................................................... 32 
7.5.1. 
Prior to Treatment ........................................................................................ 32 
7.5.2. 
Treatment Procedure .................................................................................... 32 
7.6. 
Post Treatment Follow up Period: Week 1, Week 6 and Week 12 ............. 32 
7.7. 
End of the Study for Patient ......................................................................... 32 
7.7.1. 
Discontinuation of Study Treatment/Procedure .......................................... 33 
7.7.2. 
Withdrawal of Consent ................................................................................ 33 
8. 
ASSESSMENT TYPES............................................................................... 34 
8.1. 
Safety and Tolerability ................................................................................ 34 
8.2. 
Efficacy Assessments .................................................................................. 35 
8.2.1. 
Assessment of Symptoms ............................................................................ 35 
8.2.2. 
Elimination of Saphenous Vein Reflux ....................................................... 35 
8.2.3. 
Improvement in Patient Symptoms ............................................................. 35 
9. 
WITHDRAWAL OF PATIENTS FROM THE STUDY ............................ 36 
9.1. 
Prior to Randomization and Treatment ........................................................ 36 
9.2. 
Post Randomization and Treatment ............................................................. 36 
10. 
SAFETY MONITORING DURING THE STUDY .................................... 37 
10.1. 
Vital Signs ................................................................................................... 37 
10.2. 
History/Varicose Vein History/Physical Examination ................................ 37 
10.3. 
Clinical Laboratory Safety Assessments ..................................................... 37 
10.4. 
Post-treatment Local Effects ........................................................................ 37 
10.5. 
Identification and Description of Thromboembolic Events ........................ 37 
10.6. 
Assessment of Adverse Events .................................................................... 37 
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10.7. 
Adverse Event Definition ............................................................................ 38 
10.7.1. 
Pharmaceutical Product ............................................................................... 38 
10.7.2. 
Medical Device ............................................................................................ 38 
10.8. 
Definition of Serious Adverse Event ........................................................... 39 
10.9. 
Follow-up Information on a Serious Adverse Event ................................... 40 
10.10. 
Abnormal Test Findings .............................................................................. 40 
10.11. 
Relationship to Study Treatment ................................................................. 41 
10.12. 
Pregnancy .................................................................................................... 42 
10.13. 
Monitoring and Recording of Adverse Events ............................................ 42 
10.14. 
Reporting of Serious Adverse Events .......................................................... 43 
10.15. 
Sponsor Responsibility for Expedited Safety Reports ................................. 43 
11. 
PLANNED STATISTICAL METHODS FOR ASSESSMENT OF 
EFFICACY AND SAFETY ........................................................................ 45 
11.1. 
General Considerations ................................................................................ 45 
11.2. 
Analysis Populations ................................................................................... 45 
11.2.1. 
Safety Population ......................................................................................... 45 
11.2.2. 
Modified Intent-to-Treat (MITT) Population .............................................. 45 
11.3. 
Primary Efficacy Endpoint .......................................................................... 45 
11.3.1. 
Secondary Efficacy Endpoint ...................................................................... 45 
11.4. 
Tertiary Endpoints ....................................................................................... 45 
11.5. 
Exploratory Endpoints ................................................................................. 46 
11.5.1. 
Week 1 ......................................................................................................... 46 
11.5.2. 
Week 6 ......................................................................................................... 46 
11.5.3. 
Week 12 ....................................................................................................... 46 
11.6. 
Determination of Sample Size ..................................................................... 46 
11.7. 
Analysis of Primary Efficacy Endpoint ....................................................... 46 
11.8. 
Analysis of Other Efficacy Endpoints ......................................................... 47 
11.9. 
Analysis of the Safety Endpoints ................................................................. 47 
11.10. 
Protocol Deviations/Violations .................................................................... 48 
12. 
ETHICS AND GENERAL CLINICAL TRIAL CONDUCT 
CONSIDERATIONS ................................................................................... 49 
12.1. 
Institutional Review Board or Ethics Committee Approval ........................ 49 
12.2. 
Informed Consent ........................................................................................ 49 
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12.3. 
Patient Confidentiality ................................................................................. 50 
12.4. 
Data Monitoring Committee(s) .................................................................... 50 
13. 
REGULATORY/ADMINISTRATIVE PROCEDURES AND 
DOCUMENTATION .................................................................................. 51 
13.1. 
Quality Control and Quality Assurance ....................................................... 51 
13.2. 
Investigators and Study Administrative Structure ....................................... 51 
13.3. 
Study Monitoring ......................................................................................... 51 
13.4. 
Data Collection and Electronic Case Report Forms .................................... 52 
13.5. 
Access to Source Documentation ................................................................ 52 
13.6. 
Study Documentation and Retention of Records ......................................... 52 
14. 
DISCLOSURE OF DATA AND PUBLICATION ..................................... 53 
15. 
REFERENCES ............................................................................................ 54 
APPENDIX A. ASSESSMENT OF EFFICACY AND SAFETY .............................. 56 
APPENDIX B. CLINICAL SUPPLIES ....................................................................... 58 
APPENDIX C. VICARES - PROTOCOL CL-001 CLINICAL STUDY 
PROCEDURE MANUAL VERSION 1.1 ................................................... 60 
 
Page 8 of 101

LIST OF TABLES 
Table 1: 
Study Endpoints ........................................................................................... 21 
Table 2: 
Study Periods ............................................................................................... 23 
Table 3: 
Visit Schedule and Assessments .................................................................. 30 
Table 4:  
Adverse Event Causality Guidelines ........................................................... 41 
Table 5: 
Description of Selected Scales for Efficacy Assessment ............................ 56 
Table 6: 
Clinical Supplies .......................................................................................... 59 
 
LIST OF FIGURES 
Figure 1: 
Study Design ................................................................................................ 22 
 
 
Page 9 of 101

PROTOCOL SYNOPSIS 
Names of Sponsor/Company: Vascular Insights, LLC 
Name of Investigational Product: ClariVein® RES (Sodium Tetradecyl Sulfate 1% and 3% Injection 
delivered via the ClariVein infusion catheter system) 
Name of Active Ingredient: Sodium tetradecyl sulfate (STS)  
Name of the Delivery System: ClariVein®  
Study Title: A Prospective, Randomized, Controlled, Multi-Center, Double Blind Study of ClariVein 
RES for Treatment of Venous Insufficiency Associated with Incompetent Saphenous Veins due to 
Superficial Venous Reflux (VICARES) 
Number of Study Centers/Patients: Approximately 10 study centers/50 patients in the USA 
Study Period: 
Estimated date of first patient’s consent: Q3 2017  
Estimated date of last patient’s last visit: Q1 2018 
Phase of Development: 
Phase 2 (Pilot) 
Study Purpose 
The purpose of the study is to utilize the ClariVein infusion catheter system specifically for delivery 
of the STS injection to treat venous insufficiency associated with incompetent saphenous veins. 
Primary Objective 
Improvement in patient reported symptoms using, HASTI symptoms (heaviness, aching, swelling, 
throbbing and itching) from the VEINES-QOL/Sym Questionnaire at post treatment Week 12 
compared to Baseline. 
Secondary Objective 
Elimination of saphenous vein reflux post treatment as demonstrated by duplex ultrasound at Week 12 
post treatment. 
Tertiary Objectives 
Assessment of patient improvement at Week 12 post treatment as compared to the Baseline using the 
following scales: 
• Clinical-Etiology-Anatomy-Pathophysiology (CEAP) Classification 
• European Quality of Life Scale (EQ-5D-5L) 
• Revised Venous Clinical Severity Score (rVCSS)  
• Wong Baker Visual Analog Pain Scale (VAS scale)  
 
Study Design: 
This Phase 2 clinical study is designed as a prospective, randomized, controlled, multicenter, double-
Page 10 of 101

blind study of ClariVein RES for the treatment of venous insufficiency associated with incompetent 
saphenous veins due to superficial venous reflux. 
Population: 
The study will be conducted in adult patients with the diagnosis of incompetent saphenous veins. 
Inclusion Criteria  
An individual must meet all the following inclusion criteria to be eligible for this study: 
1. Written informed consent  
2. Age ≥18 years ≤ 80 
3. Saphenous vein reflux > 500ms (0.5s), as measured by duplex ultrasound with patient in the 
standing position  
4. Incompetent saphenous vein with vein diameter ≥ 4 mm and ≤ 12 mm, as measured by duplex 
ultrasound with patient in the standing position 
5. Incompetent saphenous vein with treatable length ≥ 10 cm, as measured by duplex ultrasound 
with patient in the standing position  
6. One or more of the HASTI symptoms related to the target vein: heaviness, achiness, swelling, 
throbbing and itching.  
7. Candidate for endovenous procedure for the treatment of venous insufficiency or superficial 
venous reflux. 
8. CEAP Score: C2 (symptomatic), C3, C4, C5 
9. rVCSS ≥ 3 
Exclusion Criteria  
An individual will be ineligible for participation in this study if any of the follow criteria are met: 
1. CEAP Score: C1, C2 (asymptomatic), C6 
2. Second incompetent saphenous vein > 4 mm diameter in either leg 
3. Arterial insufficiency demonstrated by a history of peripheral arterial disease (PAD) that 
would preclude the wearing of compression stockings   
4. Absence of a palpable pulse at posterior tibial or dorsalis pedis and an Ankle-Brachial Index 
(ABI) <0.6 
5. Multi-segmental axial deep venous reflux in at least two contiguous venous segments (e.g., 
femoral and popliteal) in the ipsilateral extremity 
6. Previous surgical or endovenous procedure in the treatment section of the target vein (e.g., 
surgical, thermal ablation, chemical ablation, etc.)   
7.  Any major surgery, prolonged hospitalization, or pregnancy within 12 weeks prior to 
Screening (Visit 1) 
Page 11 of 101

8. Participation in an interventional clinical study with any investigational product (drug, 
biologic, device etc.) within 4 weeks prior to Screening (Visit 1) 
9. Unable to: 
10. walk unassisted, and  
11. stand as needed for duplex ultrasound measurements of vein at scheduled visits 
12. Previous superficial thrombophlebitis of the target saphenous vein with scarring in the 
treatment section   
13. Female patients of childbearing potential with a positive result from a pregnancy test 
performed at Screening (Visit 1), Baseline (Visit 2), or Day of Treatment (Visit 3) 
14. Known sensitivity or allergic response to: 
15. sodium tetradecyl sulfate (STS) or any of its ingredients; and  
16. other products if planned for use on the study patient and there is no available alternative, e.g., 
local anesthetic; latex stockings, or gloves 
17. Known history of anaphylaxis or presence of multiple severe allergies 
18. Known high risk of thrombosis, e.g., two or more risk factors including, current use of 
hormonal contraception, current use of hormone replacement therapy, extended periods of 
immobility, cancer, obesity, recent trauma 
19. Known history of deep vein thrombus (DVT) or pulmonary embolism (PE), known history of 
acute superficial vein thrombus, known hypercoagulable condition, post thrombotic syndrome 
20. Known history of drug or alcohol abuse within 2 years of Screening (Visit 1); and/or current 
chronic narcotic usage, including for pain (e.g., opioids) 
21. Presence of tortuous target saphenous vein, which in the opinion of the Investigator will limit 
vascular access and/or require more than one access site to treat patient 
22. Varicosities caused by known pelvic or abdominal pathology 
23. Lymphedema 
24. Fibromyalgia 
25. Other medical conditions or comorbidities which, in the opinion of the Investigator, could 
interfere with study compliance, could affect the efficacy of treatment or could compromise 
patient care, or could interfere with data interpretation, including, but not restricted to any one 
of the following:  
a. severe illness 
b. edema not due to venous disease of the legs (e.g., latent cardiac insufficiency, renal 
insufficiency, etc.)  
c. documented human immunodeficiency virus (HIV)  
d. congestive heart failure, coronary artery disease, cerebral vascular disease 
e. active infection, tuberculosis, or sepsis 
f. active cancer or neoplasm (excluding non-melanoma skin cancer) 
g. uncontrolled systemic disease such as diabetes mellitus, toxic hyperthyroidism, blood 
dyscrasias, or acute respiratory (e.g., asthma), or skin diseases 
Page 12 of 101

26. Any patient that, in the Investigator's opinion, would be unlikely to receive clinical benefit 
from the study procedure   
Efficacy Assessment (Primary, Secondary, Tertiary, Exploratory) 
• 
European Quality of Life scale (EQ-5D-5L)  
• 
VEINES-QOL/Sym 
• 
VAS score 
• 
CEAP  
• 
rVCSS 
• 
Ultrasound  
Safety Assessment 
Assessment of adverse events 
Data Analysis  
The study data will be analyzed and reported based on all patients’ data from baseline up to the time 
when all patients have completed the Week 12 post-treatment follow-up visit or have discontinued 
from the study.  If a patient has discontinued from the study, the Last Observation will be carried 
forward (LOCF) for analysis. 
Page 13 of 101

LIST OF ABBREVIATIONS AND TERMS 
List of Abbreviations  
 
Abbreviation 
Term 
AE 
Adverse Event 
ASV 
Accessory Saphenous Vein 
CEAP 
Clinical-Etiology-Anatomy-Pathophysiology Classification 
DICOM 
Digital Imaging and Communications in Medicine 
DVT 
Deep Venous Thrombosis 
EO 
Ethylene Oxide 
EQ-5D-5L 
European Quality of Life - 5 Dimensions 
FDA 
Food and Drug Administration (United States of America) 
GCP 
Good Clinical Practice 
GSV 
Great Saphenous Vein 
HASTI 
Heaviness, Achiness, Swelling, Throbbing, Itching 
IC 
Intravascular Coagulation 
IRB  
Institutional Review Board 
MDU 
Motor Drive Unit 
PASTE 
Post-Ablation Superficial Thrombus Extension 
PE 
Pulmonary Embolism 
rVCSS 
Revised Venous Clinical Severity Score 
SAE 
Serious Adverse Event  
SFJ 
Sapheno-Femoral Junction or Saphenofemoral Junction 
SSV 
Small Saphenous Vein 
STS 
Sodium Tetradecyl Sulfate 
SVS 
Saphenous Vein Segment 
TS 
US 
Treatment Section 
United States 
VAS 
Visual Analog Scale 
VEINES-QOL/SYM 
Venous Insufficiency Epidemiological and Economic Study-Quality of 
Life Questionnaire   
VI 
Vascular Insights, LLC 
 
 
Page 14 of 101

List of Terms and Definitions 
Term 
Definition 
Adverse Event 
An adverse event (AE) is any untoward medical occurrence in a patient or 
clinical investigation subject administered a study product. The occurrence, 
which may or may not have a causal relationship with the investigational 
treatment, may include any clinical or laboratory change that does not 
commonly occur in that patient and is considered clinically significant. 
Baseline 
Establishment of patient eligibility for study treatment at least 7 days prior to 
Treatment visit (Visit 2) 
CEAP Classification 
 
CRO 
The CEAP classification is a method for evaluating venous disease of the leg 
based on clinical, etiologic, anatomic, and pathophysiologic data. 
Clinical Research Organization, which may be assigned responsibility to 
perform selected function of the study 
Day-of-Treatment  
The day on which the single-treatment procedure is performed– the 
treatment begins and ends on the same day (Visit 3)  
End-of-Study for Patient 
The end of study for a patient is when the patient has completed the required 
post-treatment study visits or has discontinued from the study.  
Enrolled Patient 
Individual who has signed the Informed Consent Form. 
Elimination of Saphenous Vein 
Reflux 
Vein closure and/or vein competence of the treatment section (TS) of the 
selected saphenous vein, as demonstrated by duplex ultrasound at Week 12 
post treatment (Visit 6)  
Follow-up Period 
From the day following Day of Treatment (Visit 3) to completion of the 
Week 1, 6 and 12 (Visits 4, 5 and 6) post-treatment follow-up visits 
HASTI 
Heaviness, Achiness, Swelling, Throbbing, Itching symptom from VEINES-
QOL/Sym questionnaire  
Institutional Review Board 
(IRB) 
A type of committee used in research in the United States that has been 
formally designated to approve, monitor, and review biomedical and 
behavioral research involving humans 
Regulatory Agency 
USA Food and Drug Administration (FDA) 
Saphenous Vein Segment  
A segment of saphenous vein with no deep venous junction 
Screening Period 
After reviewing and signing the Informed Consent Form (ICF) for 
participation in the study, an individual will be screened for eligibility to 
participate in study during Screening (Visit 1), Baseline (Visit 2), Day of 
Treatment (Visit 3).  
Sponsor 
Vascular Insights, LLC 
Page 15 of 101

Term 
Definition 
Start-of-Study 
Study starts when first patient signs the ICF (Visit 1).  
Study Drug 
Sodium Tetradecyl Sulfate (STS) 1% and 3% 
Study Drug Delivery System 
ClariVein infusion catheter system 
Study Product  
ClariVein RES (Sodium Tetradecyl Sulfate delivered via the ClariVein 
infusion catheter system) 
VICARES Clinical Study 
Procedure Manual  
A manual provided to the Investigational Sites that include instruction for 
device operation, study drug and delivery device preparation, and ultrasound 
assessments for the ClariVein RES. 
Study Treatment 
The study treatment, is the endovenous administration of either 1% or 3% 
STS delivered intravenously via the ClariVein, with a maximum STS 
volume of 10 mL per single treatment procedure.   
Suspected Adverse Event 
 
Any adverse event (AE) for which there is a reasonable possibility that the 
study product caused the AE. For the purposes of IND safety reporting, 
"reasonable possibility" means there is evidence to suggest a causal 
relationship between the investigational product and the AE. 
Treatment Section 
The treatment section (TS) is the portion of the selected saphenous vein to be 
treated with ClariVein RES. 
Treatment Section Length 
The treatment section length (TSL) is the portion of the selected saphenous 
vein to be treated with ClariVein RES. 
Treatment Section Diameter 
The average diameter of the treatment section (TS).  
Vein Closure 
No discrete open section of vein >5 cm in length within the treatment section 
(TS) of the selected saphenous vein, as assessed by duplex ultrasound. 
Vein Competence 
Absence of retrograde flow >500ms (0.5s) within the treatment section (TS) 
of the selected saphenous vein, as assessed by duplex ultrasound.  
Page 16 of 101

1. 
BACKGROUND 
Venous insufficiency, a serious health condition, is most commonly caused by incompetent 
valves in the affected veins which prevent blood from returning to the heart, causing blood to 
pool in the legs and, as a result, venous hypertension.  Valve failure can be spontaneous in 
patients with congenitally weak valves; or congenitally normal valves can fail as a result of 
trauma, thrombosis, hormonal changes, or long-term environmental effects. 
In the United States (US), varicose veins affect approximately 25% of the adult population 
(Criqui et al 2003). The prevalence and severity increase with age; however, the severity and 
extent of varicosities vary greatly among individuals and do not necessarily correspond to the 
severity of a patient’s symptoms that result from venous hypertension.  Venous hypertension 
may lead to progressive damage to the skin (e.g., edema, discoloration, hyperpigmentation, 
eczema, and ulceration), with symptoms that motivate patients to seek treatment; and in the US 
alone more than 400,000 patients are treated annually (Millennium Research Group 2009).  
Over time this condition often develops into a progressive chronic disease. Chronic Venous 
Disease (CVD) is among the most frequently diagnosed diseases in Western populations that 
cause symptoms such as heaviness of the legs, pain, and swelling. While CVD encompasses the 
full spectrum of the disease (described by Clinical-Etiology-Anatomy-Pathophysiology [CEAP] 
classes C1 to C6), the term chronic venous insufficiency (CVI) is generally restricted to the 
more severe forms of the disease. 
The ClariVein, a unique proprietary mechanical action infusion catheter, has been cleared by the 
FDA since 2008 as a Class 2 medical device for the infusion of physician-specified agents in the 
peripheral vasculature [510(k) K071468 and K153502]; and commercialized as the ClariVein 
IC. The ClariVein has been approved since 2010 in certain countries/regions outside the USA as 
the “ClariVein OC”; e.g., Europe (CE marked), Canada, Asia Pacific, Latin America and 
Middle East countries, with an additional specific indication “for infusion of physician-specified 
agents in the peripheral vasculature, including for the occlusion of incompetent veins due to 
superficial venous reflux”.  The ClariVein IC and the ClariVein OC are physically identical 
products. 
Globally, physicians have found great utility with the ClariVein® for the administration of 
sclerosing agents such as sodium tetradecyl sulfate and polidocanol for treatment of 
incompetent saphenous veins.  More than 90,000 ClariVein devices have been distributed 
worldwide; and a significant body of clinical experience inclusive of published data, clinical 
studies and case reports, describes use of the ClariVein to mechanically deliver chemical 
scleorsant in over 1200 venous disease patients.  Much of these data present ClariVein® 
administering sodium tetradecyl sulfate (STS) for the treatment of venous insufficiency 
attributed to incompetent saphenous veins due to superficial venous reflux.  
The STS solution 1% and 3%, a chemical sclerosing agent, has been approved by the FDA since 
1946 as a drug for the intravenous delivery and treatment of small uncomplicated varicose veins 
of the lower extremities that show simple dilation with competent valves.  [NDA 05970, 
ANDA 40541].   
Vascular Insights, LLC is investigating the ClariVein RES, i.e., the endovenous administration 
of STS (1% and 3%) mechanically delivered intravenously via the ClariVein infusion catheter 
Page 17 of 101

for the treatment of venous insufficiency associated with incompetent saphenous veins due to 
superficial venous reflux.  
1.1. 
Rationale 
CVI is a leading cause of chronic debilitating disease in the US (White 1993, Van den 1998); 
between 10% and 35% of the US adult population has some form of CVI (Criqui 2003, Simka 
2003). In industrialized nations, 0.2% - 1% of people suffer from venous ulceration. This 
percentage increases to 4% in patients 65 years of age and older (White 1993; Reporting 
standards in venous disease 1988). Venous leg ulcers are extremely common in the United 
States and affect between 500,000 to 2 million people annually (Margolis 2002). Ineffective 
therapies and the progressive nature of the disease place a heavy burden on the US healthcare 
system. The population-based costs in the US for treatment of CVI and venous ulcer care have 
been estimated to exceed one billion dollars per year (Hume 1992; US Department of Health 
and Welfare 1935-1936) and as high as $14.9 billion (Rice 2014).  
The high incidence and increasing cost of CVI care have garnered renewed interest in this 
disease process, which has led to interesting findings in the past decade. For example, the 
incidence of CVD correlates with a reduced quality of life, particularly in relation to pain, 
physical function, and mobility. It is also associated with depression and social isolation (Van 
Korlaar et al 2003). Impairment associated with CEAP classes C5 and C6 has been likened to 
that of impairment associated with congestive heart failure (Kistner et al 1996). 
The majority (60–70%) of varicose vein patients have incompetent saphenofemoral junctions 
(SFJ) and GSV reflux (Labropoulos et al 1994). Typically, the first objective in the treatment of 
varicose veins is elimination of saphenous vein reflux by removing the offending vein from 
circulation. Thermal ablation in the form of radiofrequency (RF) and endovenous laser (EVL) 
techniques are currently the most common methods used for saphenous vein ablation to treat 
superficial venous reflux. However, use of either of these thermal technologies for saphenous 
vein treatment requires tumescent anesthesia, which is both time-consuming and painful for the 
patient. Furthermore, the edema, pain, and bruising that are secondary to thermal injury of 
surrounding structures are frequent post-operative patient complaints.    
For many years, sclerotherapy was used clinically for telangiectasia and to close varicose veins. 
However, early studies using sclerotherapy for the treatment of saphenous vein reflux did not 
generate promising results. In recent years, another approach involving the creation of a “foam” 
from liquid sclerosant using the double-syringe “Tessari” method prior to injection has been 
used. This approach has led to the publication of multiple studies utilizing foam sclerotherapy to 
treat veins such as the GSV (Cavezzi et al 2002; Frullini 2003; Hamel-Desnos 2003). Results of 
foam sclerotherapy for treatment of the saphenous vein are inferior compared to thermal 
ablation (Rasmussen 2011). 
The FDA has approved foam sclerosant for the treatment of incompetent veins; indicated for 
treatment of incompetent great saphenous veins, accessory saphenous veins, and visible 
varicosities of the great saphenous vein system above and below the knee (NDA 205098, 
Approval date November 25, 2013 for Varithena®, polidocanol foam).  Other approved 
therapies for the treatment of venous insufficiency including incompetent veins include thermal 
technologies (i.e., laser and RF); and permanent implant devices (i.e., VenaSeal Closure 
System, PMA P140018, Approval date 15 Feb 2015).   
Page 18 of 101

Unlike the previously discussed therapies, ClariVein RES is not a foam, is not an implant, is not 
a thermal modality, and does not require tumescent anesthesia. ClariVein RES is the 
endovenous administration of liquid chemical sclerosant (STS) mechanically delivered 
intravenously via the ClariVein infusion catheter to the physician determined treatment section 
of the incompetent saphenous vein to effect engagement of the sclerosant to the vessel wall to 
achieve sclerosis to eliminate venous insufficiency.    
Page 19 of 101

2. 
STUDY DRUG AND DELIVERY SYSTEM 
2.1. 
Study Product 
The investigational study product, ClariVein RES, consists of two primary components: the 
study drug, STS (1% and 3%) and the study drug delivery system, ClariVein.  
• Study Drug: The study drug (STS) has been commercially available outside of the 
USA since 1967 for treatment of venous insufficiency  
• Delivery System: The delivery system (ClariVein) has been commercially available 
in the USA since 2008 marketed as the ClariVein IC for infusion of physician 
specified agents in the peripheral vasculature; and has been commercially available 
outside the USA since 2010 as the ClariVein OC for infusion of agents to treat 
saphenous veins with incompetent valves (superficial venous reflux).  
STS, marketed in the USA under the brand name Sotradecol, was approved by the USA FDA in 
1946 for treatment of small uncomplicated veins, such as spider veins, with competent valves. 
2.1.1. 
Study Drug - Sodium Tetradecyl Sulfate (STS)  
STS is provided as sterile 2 mL solution within a labeled glass ampule for single use; five 2 mL 
ampules are provided within a labeled shelf carton.  Two concentrations will be evaluated:  
• 1%, 20 mg/2 mL (10 mg/mL) 
• 3%, 60 mg/2 mL (30 mg/mL) 
Recommended storage for STS is 20° to 25°C (68° to 77°F) in a secure dry place. Do Not 
Freeze.  
2.1.2. 
Delivery System - ClariVein®  
The ClariVein is provided as a sterile disposable device for single patient use.  The ClariVein is 
packaged in a tray within a sealed labeled pouch; five pouches are placed within a labeled shelf 
box, five (5) boxes are provided within a labeled shipping carton.  The ClariVein is available in 
3 models, 45, 65 and 85 cm lengths for physician selection based on patient anatomy.  The 
disposable ClariVein consists of two primary components: a catheter assembly and integrated 
battery powered motor drive unit (MDU). All models of the ClariVein are physically identical 
except for the length of the catheter assembly. 
 
Page 20 of 101

3. 
STUDY OBJECTIVE 
3.1. 
Objectives and Endpoints  
Objectives and related endpoints are described in Table 1. 
Page 21 of 101

Table 1: 
Study Endpoints 
Primary Endpoint 
 
 
 
Improvement in patient reported symptoms using, HASTI symptoms (heaviness, 
aching, swelling, throbbing and itching) from the VEINES-QOL/Sym 
Questionnaire at post treatment Week 12 compared to Baseline.  
Section 11.3   
 
 
Secondary Endpoint 
 
 
Elimination of saphenous vein reflux post treatment as demonstrated by duplex 
ultrasound at Week 12 post treatment. 
Section 11.3.1   
Tertiary Endpoints 
 
 
Assessment of patient improvement at Week 12 post treatment as compared to the 
Baseline using the following scales: 
• Clinical-Etiology-Anatomy-Pathophysiology (CEAP) Classification 
• European Quality of Life Scale (EQ-5D-5L) 
• Revised Venous Clinical Severity Score (rVCSS)  
• Wong Baker Visual Analog Pain Scale (VAS scale)  
Section 11.4  
Exploratory  
Assessment in patient reported symptoms 
 
Week 1 
VEINES-QOL-SYM (Questions 1 through 8) 
 
Week 6 
VEINES-QOL-SYM (Questions 1 through 8) 
  
Week 12 
 
VEINES-QOL/Sym (Question 1, excluding HASTI, through Question 8) 
Section 11.5   
 
Page 22 of 101

4. 
STUDY DESIGN 
This Phase 2 Investigational Study is designed as a prospective, randomized, controlled, 
multicenter, double-blind study of STS solution delivered by the ClariVein infusion catheter 
system in adult patients for the treatment of venous insufficiency associated with incompetent 
saphenous veins due to superficial venous reflux.   
Figure 1: 
Study Design 
 
4.1. 
Treatment Arms  
During study treatment, patients will be randomized and enrolled in one of the following 
treatment arm groups:  
• Group 1: 1.0% STS solution 
• Group 2: 3.0% STS solution 
Patients will be randomized in a 1:1 ratio to each treatment arm.  
4.2. 
Study Periods 
All patients enrolled should participate in the following study periods: 
• Screening/Baseline period 
• Treatment period  
• Post treatment follow up period 
Each study visit is described below and shown in Table 2. All patients are considered 
“on-study” until they complete the follow-up period, withdraw consent or are lost to follow up. 
Page 23 of 101

Table 2: 
Study Periods 
 
Visit 
Screening Baseline 
Study Treatment  
Post Treatment Follow-up  
1 
2 
3 
4 
5 
6 
Study 
Days 
 -30 to -7 
 -10 to -7 
Day 1 Treatment  
(Procedure Day) 
Week 1 - 
Day 7 -  
(±2 days) 
Week 6 -
Day 42  
(±5 days) 
Week 12 – 
Day 84 
(±7 days) 
Purpose 
Study eligibility  
 
Treatment  
Safety/efficacy evaluation 
4.2.1. 
Screening/Baseline Period 
The screening period begins once the patient has signed the study Informed Consent Form 
(ICF). Patients will be evaluated to ensure that they meet all of the inclusion and none of the 
exclusion criteria (Section 5.1, Section 5.2).   
4.2.2. 
Treatment Day 
The treatment period duration is one day. An enrolled and randomized patient will receive the 
single treatment procedure with ClariVein RES (approximately less than 30 minutes), unless the 
patient opts to discontinue or experiences unacceptable toxicity during the delivery of the study 
drug.  
4.2.3. 
Post Treatment Follow-up (FU) Period 
Patients will be followed for safety and efficacy evaluations post treatment at Week 1, Week 6 
and Week 12. Details are provided in Table 3 and Section 7.6.  
4.2.4. 
Definition of End of Study 
The end of study will be when all patients have completed Treatment Day 1 and the Post 
treatment follow-up at Week 12 or have discontinued from the study 
4.2.5. 
Study or Site Termination 
The Sponsor reserves the right to discontinue the study at any time for either clinical or 
administrative reasons and to discontinue participation of an individual Investigator or 
Investigational Site for poor enrollment or protocol noncompliance.  
If the Sponsor, Investigator, Medical Monitor, or regulatory agencies discover conditions during 
the study that indicate that the study or a site should be terminated, this action may be taken 
after appropriate consultation among the Sponsor, Investigator, and Medical Monitor.  
Study termination and follow-up will be performed in compliance with the conditions set forth 
in the guidelines for GCP, International Conference on Harmonization of Technical 
Requirements for Registration of Pharmaceuticals for Human Use: Selection and Disposition of 
Patients. 
Page 24 of 101

5. 
ELIGIBILITY CRITERIA  
The study will be conducted in adult patients with venous insufficiency associated with 
incompetent saphenous veins due to superficial venous reflux. The Investigator or designee 
must ensure that only patients who meet all the following inclusion and none of the exclusion 
criteria are offered treatment in the study. 
5.1. 
Inclusion Criteria 
An individual must meet all the following inclusion criteria to be eligible for this study: 
1. Written informed consent  
2. Age ≥18 years ≤ 80 
3. Saphenous vein reflux > 500ms (0.5s), as measured by duplex ultrasound with patient in 
the standing position  
4. Incompetent saphenous vein with vein diameter ≥ 4 mm and ≤ 12 mm, as measured by 
duplex ultrasound with patient in the standing position 
5. Incompetent saphenous vein with treatable length ≥ 10 cm, as measured by duplex 
ultrasound with patient in the standing position  
6. One or more of the HASTI symptoms related to the target vein: heaviness, achiness, 
swelling, throbbing and itching.  
7. Candidate for endovenous procedure for the treatment of venous insufficiency or 
superficial venous reflux. 
8. CEAP Score: C2 (symptomatic), C3, C4, C5 
9. rVCSS ≥ 3 
5.2. 
Exclusion Criteria 
An individual will be ineligible for participation in this study if any of the follow criteria are 
met: 
1. CEAP Score: C1, C2 (asymptomatic), C6 
2. Second incompetent saphenous vein > 4 mm diameter in either leg 
3. Arterial insufficiency demonstrated by a history of peripheral arterial disease (PAD) that 
would preclude the wearing of compression stockings   
4. Absence of a palpable pulse at posterior tibial or dorsalis pedis and an Ankle-Brachial 
Index (ABI) <0.6 
5. Multi-segmental axial deep venous reflux in at least two contiguous venous segments 
(e.g., femoral and popliteal) in the ipsilateral extremity 
6. Previous surgical or endovenous procedure in the treatment section of the target vein 
(e.g., surgical, thermal ablation, chemical ablation, etc.)   
Page 25 of 101

7.  Any major surgery, prolonged hospitalization, or pregnancy within 12 weeks prior to 
Screening (Visit 1) 
8. Participation in an interventional clinical study with any investigational product (drug, 
biologic, device etc.) within 4 weeks prior to Screening (Visit 1) 
9. Unable to: 
a. walk unassisted; and 
b. stand as needed for duplex ultrasound measurements of vein at scheduled visits 
10. Previous superficial thrombophlebitis of the target saphenous vein with scarring in the 
treatment section   
11. Female patients of childbearing potential with a positive result from a pregnancy test at 
the Screening (Visit 1), Baseline (Visit 2), or at the Day of Treatment (Visit 3) 
12. Known sensitivity or allergic response to: 
a. sodium tetradecyl sulfate (STS) or any of its ingredients; and 
b. other products if planned for use on the study patient and there is no available 
alternative, e.g., local anesthetic; latex stockings, or gloves 
13. Known history of anaphylaxis or presence of multiple severe allergies 
14. Known high risk of thrombosis, e.g., two or more risk factors including, current use of 
hormonal contraception, current use of hormone replacement therapy, extended periods 
of immobility, cancer, obesity, recent trauma 
15. Known history of deep vein thrombus (DVT) or pulmonary embolism (PE), known 
history of acute superficial vein thrombus, known hypercoagulable condition, post 
thrombotic syndrome 
16. Known history of drug or alcohol abuse within 2 years of Screening (Visit 1); and/or 
current chronic narcotic usage, including for pain (e.g., opioids) 
17. Presence of tortuous target saphenous vein, which in the opinion of the Investigator will 
limit vascular access and/or require more than one access site to treat patient 
18. Varicosities caused by known pelvic or abdominal pathology 
19. Lymphedema 
20. Fibromyalgia 
21. Other medical conditions or comorbidities which, in the opinion of the Investigator, 
could interfere with study compliance, could compromise patient care, or could interfere 
with data interpretation, including, but not restricted to:  
a. severe illness 
b. edema not due to venous disease of the legs (e.g., latent cardiac insufficiency, renal 
insufficiency, etc.)  
c. documented human immunodeficiency virus (HIV)  
d. congestive heart failure, coronary artery disease, cerebral vascular disease 
e. active infection, tuberculosis, or sepsis 
f. active cancer or neoplasm (excluding non-melanoma skin cancer) 
Page 26 of 101

g. uncontrolled systemic disease such as diabetes mellitus, toxic hyperthyroidism, 
blood dyscrasias, or acute respiratory (e.g., asthma), or skin diseases 
22. Any patient that, in the Investigator's opinion, would be unlikely to receive clinical 
benefit from the study procedure   
Page 27 of 101

6. 
TREATMENT OF PATIENTS 
6.1. 
Study Treatment 
ClariVein RES is the endovenous administration of STS injection (1% and 3%) mechanically 
delivered as intravenous infusion via the ClariVein for the treatment of venous insufficiency 
associated with incompetent saphenous vein due to superficial venous reflux. 
This study is limited to the treatment of one incompetent saphenous vein per treatment 
procedure. Refer to Appendix C VICARES Clinical Study Procedure Manual for detailed on the 
treatment procedure including ultrasound measurements and calculation of the STS volume 
required for administration.   
6.2. 
Study Duration 
This study is limited to the treatment of one incompetent saphenous vein in one leg per 
treatment procedure. STS (1% or 3%) will be delivered as a single dose treatment.  The 
ClariVein RES treatment procedure will be completed on each eligible patient on the Treatment 
Day (noted as Day 1), unless the patient experiences unacceptable toxicity and/or treatment is 
discontinued at the discretion of the Investigator or the patient.  
Overall duration of the study from first patient enrolled to last patient completion of Week 12 
follow-up is anticipated to be approximately 6 months. Study duration for individual study 
patients, including follow-up visits, is anticipated to be approximately 16 weeks (Visit 1 
Screening, up to 30 days prior to treatment through Week 12 post-treatment.) 
6.3. 
Potential Drug Interactions/Allergies 
No well-controlled studies of the study drug (STS Injection 1% and 3%) have been performed 
on patients taking anti-ovulatory agents. The Investigator must use medical judgment and 
evaluate any patient taking anti-ovulatory drugs prior to initiating treatment with the study drug 
(STS) (Sotradecol Package Insert 2013).  
Heparin should not be included in the same syringe as STS solution, since the two are labeled to 
be incompatible. (Sotradecol Package Insert 2013). 
Patient should be observed for at least 30 minutes following treatment. The Investigator must be 
prepared to treat any allergic reaction to substances utilized during treatment procedure, 
including anaphylaxis reactions. 
Emergency resuscitation equipment must be immediately available in the event of 
anaphylactic reactions. 
6.4. 
Prior and Concomitant Treatment(s)/Therapy 
All prior and concomitant medications taken within 30 days prior to the Screening (Visit 1) 
through completion of the last planned follow-up visit at Week 12 post-treatment (Visit 6) must 
be recorded in the eCRF.  
At every visit, patients will be asked to confirm if there has been any change in medications 
taken since the last visit. Changes will be recorded on the concomitant medications eCRF and 
Page 28 of 101

coded using the World Health Organization Drug Dictionary Enhanced (WHODDE) and further 
coded against Anatomical Therapeutic Chemical (ATC) classification. 
All concomitant medications are to be documented and reviewed per the Study’s 
Inclusion/Exclusion criteria (Section 5). 
6.5. 
Prohibited Concomitant Procedures/Therapies/Medications 
Any adjunctive procedures in either leg, including phlebectomy, will not be allowed prior to 
completion of the Week 12 post-treatment visit.   
6.6. 
Patient Numbering, Treatment Assignment or Randomization  
6.6.1. 
Subject Numbering 
Each patient is identified in the study by a unique Subject Number (Subject No.), that is 
assigned when the patient is first enrolled for Screening. 
The randomization assignment of a patient to treatment arm Group 1 or Group 2 will be 
performed at a 1:1 ratio.  
6.6.2. 
Double Blind - Study Drug 
The Sponsor, CRO, Investigational Site Staff, Investigators and patients will be blinded to the 
study drug and will use the product assigned via a validated randomization system.  The study 
blind will be broken after the study database has been locked upon completion of the clinical 
study.  
6.6.3. 
Emergency Breaking of the Study Blind 
The study blind is not to be broken under ordinary circumstances. No change in standard 
emergency treatment is anticipated due to a difference in the strength of the study drug.  
However, unblinding should not necessarily be a reason for discontinuation of the study. 
6.7. 
Preparation, Dispensing, and Storage of Clinical Supplies 
Please refer to Appendix C VICARES Clinical Study Procedure Manual for information on the 
preparation, dispensing and storage of clinical supplies. 
6.8. 
Study Drug and Device Accountability 
The Investigational site is responsible for receipt, storage, and accountability of the Study 
Product, ClariVein RES (STS and ClariVein), supplied to the Investigational site specifically 
for use in this clinical study, in compliance with Good Clinical Practice. 
 
Page 29 of 101

7. 
VISIT SCHEDULE AND ASSESSMENTS  
7.1. 
Study Visit Schedule and Assessments 
A list of all study assessments is included in Table 3, which indicates with an “X” if the 
assessment performed at that visit. 
The Screening (Visit 1) evaluation should be performed ≤ 30 days prior to Treatment (Visit 3). 
Additional screening will be performed at Baseline (Visit 2), not less than 7 days prior to 
Treatment (Visit 3).  
Study visits, tests and/or procedures should occur on schedule per Table 3. Any exceptions will 
have to be approved by the sponsor.  
Page 30 of 101

Table 3: 
Visit Schedule and Assessments 
Visit 
Visit 1 
Visit 2 
Visit 3 
Visit 4 
Visit 5 
Visit 6 
  
Screening Period 
Treatment 
Period 
Post-Treatment Follow-up Peirod 
Screening 
Baseline 
Treatment 
Week 1 
Week 6 
Week 12 
Study Day(s) 
 -30 to -7 
 -10 to -7 
 
Day 1 
Day 7 
(±2 days) 
Day 42  
(±5 days) 
Day 84 
(±7 days) 
Informed Consent 
X 
 
 
 
  
 
Inclusion/Exclusion criteria 
X 
 
 
 
  
 
Medical History 
X 
 
 
 
  
 
Diagnosis and Extent 
incompetent saphenous vein 
X 
 
 
 
  
 
Demographics 
X 
 
 
 
  
 
Physical Exam 
X 
 
X 
 
  
 
Pregnancy test (serum) 
 
X 
 
 
  
 
Pregnancy test (urine) 
X 
 
X  
 
  
 
Height 
X 
 
 
 
  
 
Weight 
X 
 
 
 
 
 
Vital signs 
X 
X 
X 
X 
X 
X 
Hematological Assessmenta,  
 
X 
 
X 
X 
X 
Intravascular Coagulation 
Assessmentb, c 
 
X 
 
X  
X 
 X 
X 
Adverse events 
X 
Continuous 
Concomitant medications 
and Non-Drug procedures 
X 
Continuous 
Ultrasound 
X 
X 
X 
X 
X 
X 
CEAP Classification 
X 
 
 
 
 
X 
rVCSS 
X 
 
 
 
 
X 
HASTI symptoms – 7-day 
assessment  
 
 
X 
X 
X 
X 
European Quality of Life 
scale (EQ-5D-5L) 
 
X 
X 
X 
X 
X 
VEINES-QOL-SYM 
 
X 
X 
X 
X 
X 
VAS score  
 
X 
X  
(Procedure only) 
X 
X 
X 
ClariVein RES procedure 
 
 
X 
 
  
 
a Hematological Assessments include: Hemolysis, hematocrit, reticulocyte count, haptoglobins as described in 
Section 8.1 
b Intravascular coagulations include Plasma fibrinogen level, Plasma D-dimer level platelet count, Prothrombin 
time (PT), Partial thromboplastin time (PTT) as described in Section 8.1. 
c Plasma D-dimer level assessments will be conducted at: Baseline (Visit 2) immediately post Treatment (Visit 3) 
and at Week 1 follow-up (Visit 4); then, only at subsequent follow-up visits [Week 6 (Visit 5) and Week 12 (Visit 
6)] if the D-dimer level is higher than it was at Baseline. 
 
Page 31 of 101

7.2. 
Pre-visit Patient Instructions 
When scheduling a patient for a study visit, advise the patient to be mobile for at least 2 to 3 
hours prior to arriving at the Investigational Study Site; this will facilitate obtaining precise 
measurements of incompetent saphenous vein. 
Refer to the Appendix C VICARES Clinical Study Procedure Manual for instruction on the 
preparation and ultrasound procedure 
7.3. 
Screening (Visit 1)  
The study IRB approved informed consent form must be signed and dated before any screening 
procedures are performed, except for any laboratory tests performed as part of standard of care 
within the study screening window. 
Patients will be evaluated against study inclusion and exclusion criteria. Patients must meet all 
inclusion and none of the exclusion criteria at Screening to be eligible for the study. For details 
of assessments, refer to Table 3.  
At the Investigational site, prior to ultrasound assessment of the venous system, the patient will 
be asked to stand or walk for 10-15 minutes. 
During Screening visit (Visit 1), the Investigator/Investigational Staff will: 
1. Perform all Visit 1 assessments per Table 3  
2. At the end of the Screening Visit, if the patient fails to be eligible per the 
Inclusion/Exclusion criteria, the patient will be considered a screen failure and the 
reason for failure must be documented in the screening log.  
7.4. 
Baseline (Visit 2)  
The Baseline visit will occur -10 to -7 days prior to the Day of Treatment.  
At the Investigational site, prior to ultrasound assessment of the incompetent saphenous vein, 
the patient will be asked to stand or walk for 10-15 minutes. 
During the Baseline visit (Visit 2), the Investigator/Clinical Study Staff will: 
1. Perform all Visit 2 assessment per Table 3.  
2. Review the preliminary ultrasound mapping of the bilateral superficial venous systems 
and the selected incompetent saphenous vein (which was obtained during the initial 
Screening (Visit 1)  
3. Perform unilateral ultrasound imaging studies of the incompetent saphenous vein 
selected for treatment with patient in the standing position to determine: 
a.  access site (e.g., lowest point of reflux, as appropriate); and  
b. treatment section length (TSL) and treatment section diameter (TSD) measurements.  
4. Review the VEINES-QOL Sym with the patient.  Instruct patient to answer the HASTI 
Symptom questions for 7-consecutive days prior to the arrival at the Day of Treatment 
visit (Visit 3). 
Page 32 of 101

5. At the end of the Baseline Visit, if the patient fails to be eligible per the 
Inclusion/Exclusion criteria, the patient will be considered a screen failure and the 
reason for failure must be documented in the screening log.  
7.5. 
Day of Treatment (Visit 3) 
On the Day of Treatment prior to treatment procedure review the VEINES-QOL Sym 
questionnaire; confirm that the patient has completed the HASTI symptom items daily for 7 
consecutive days prior to Visit 3. Perform urine pregnancy test and document result. Reconfirm 
the patient is eligible for treatment. If the patient fails to be eligible per the Inclusion/Exclusion 
criteria, the patient will be considered a screen failure and the reason for failure must be 
documented in the screening log.  
7.5.1. 
Prior to Treatment  
1. Perform all Visit 3 assessments per Table 3  
2. Review the Baseline ultrasound images and report 
3. Perform a limited ultrasound exam to; (refer to Appendix C VICARES Clinical Study 
Procedure Manual) 
a. confirm the vein to be treated and the access site; and 
b. confirm TS (treatment section length) and TSD (treatment section diameter) 
4. At the end of the screening, if patient is eligible for Treatment, prepare patient for the 
procedure  
5. Investigator should follow their institution’s protocol for vascular access.  
7.5.2. 
Treatment Procedure  
Refer to Appendix C VICARES Clinical Study Procedure Manual for the study treatment 
procedure.  
Following the treatment procedure, apply compression stocking on the treated leg.    
Instruct the patient of the following: 
a. The compression stocking must be worn for 72 hours (3 days) post treatment; and   
b. After 72 hours post treatment, patient is to wear the compression stocking only 
during the daytime for 2 weeks. 
7.6. 
Post Treatment Follow up Period: Week 1, Week 6 and Week 12  
At the post treatment follow up visits, the assessments must be completed as detailed in Table 3.  
7.7. 
End of the Study for Patient 
End of Study for a patient occurs when the patient has completed the Week 12 post-treatment 
follow-up visit, withdraws consent, or is lost to follow-up. 
Page 33 of 101

7.7.1. 
Discontinuation of Study Treatment/Procedure 
Patients may voluntarily discontinue from the study for any reason at any time. If a patient 
decides to discontinue from the study, the Investigator will make every effort (e.g. telephone, e-
mail, letter) to determine the primary reason for this decision and record this information in the 
patient’s chart and on the appropriate CRF pages. A patient may be considered withdrawn if the 
patient states an intention to withdraw, fails to return for study visits, or becomes lost to follow-
up for any other reason. 
The Investigator should discontinue the study procedure for a given patient if, he/she believes 
that continuation would be detrimental to the patient’s well-being. 
Study treatment may be discontinued if any of the following occur: 
• Adverse event 
• Physician’s decision 
• Patient/guardian decision 
• Protocol deviation 
• Technical problems 
Patients must be discontinued if any of the following occur: 
• At the time, a patient discontinues from the study, a visit should be scheduled as 
soon as possible, or no later than within 14 days of the decision to permanently 
discontinue from the study.  
• If the decision to withdraw the patient occurs on Day of Treatment (Visit 3) 
following the initiation of the treatment procedure and the patient is determined to be 
evaluable as defined in Section 6.1, the patient should be followed up for safety and 
efficacy at Week 1, Week 6 and Week 12.  
• If the decision to withdraw the patient occurs on Day of Treatment (Visit 3) 
following the initiation of the treatment procedure and the patient is determined to 
not be evaluable as defined in Section 6.1, that patient should be followed up for 
safety at Week 1.  
7.7.2. 
Withdrawal of Consent 
Patients may voluntarily withdraw consent to participate in the study for any reason at any time. 
Withdrawal of consent occurs only when a patient does not want to participate in the study any 
longer, does not want to have any further visits or assessments and does not want any further 
study related contact. 
The Sponsor will continue to retain and use all research results that have already been collected 
for the study evaluation.  
If a patient withdraws consent, the Investigator will make every reasonable effort (telephone, 
e--mail, letter) to determine the primary reason for this decision and record this information. 
No further assessments will be conducted. 
Page 34 of 101

8. 
ASSESSMENT TYPES 
8.1. 
Safety and Tolerability  
Safety assessment will include overall evaluation of safety of ClariVein RES. Safety will be 
assessed based on:  
• Adverse events  
− Type, incidence, severity (mild, moderate, severe), timing, seriousness, 
relatedness, outcome, action taken with study product, and treatment will be 
assessed and documented by the Investigator throughout the study 
− All spontaneous AEs will be monitored, processed, and reported per Sponsor’s 
Standard Operating Procedure for handling AEs 
• Vital signs (i.e., oral temperature, respiratory rate, heart rate and blood pressure) 
• Clinical laboratory assessments  
− Hematological Assessment:  
− hemolysis  
− hematocrit,  
− reticulocyte count,  
− haptoglobins,  
− Intravascular Coagulation Assessment  
− plasma fibrinogen level 
− plasma D-dimer level platelet count 
− PT – prothrombin time 
− PTT – partial thromboplastin time 
In addition, safety assessment will include evaluation of the following specific events: 
• Allergic reactions, including anaphylaxis 
• Neurological events including: stroke, TIA, visual symptoms, migraines 
• Venous Thromboembolic Events (VTE) in the treated leg 
• Post-treatment local effects including hyperpigmentation, granuloma formation, 
ulceration in the treated leg 
• Thrombus formation in deep veins (e.g., femoral vein) in the treated leg 
• Post-ablation superficial thrombus extension (PASTE) in the treated leg 
Page 35 of 101

8.2. 
Efficacy Assessments 
8.2.1. 
Assessment of Symptoms  
Efficacy assessment of patient improvement as compared to the baseline using the following 
scales at the post treatment follow up per Table 3: 
• VEINES-QOL/Sym Questionnaire (subset of Q1; i.e. five symptoms referred to as 
HASTI [Heaviness, Achiness, Swelling, Throbbing, Itching])  
• Clinical-Etiology-Anatomy-Pathophysiology (CEAP) Classification 
• European Quality of Life scale (EQ-5D-5L) 
• Revised Venous Clinical Severity Score (rVCSS) 
• Wong Baker Visual Analog Pain Scale (VAS)  
8.2.2. 
Elimination of Saphenous Vein Reflux  
Elimination of saphenous vein reflux at Week 12 post treatment, as demonstrated by duplex 
ultrasound based on vein closure and/or vein competency.  
Vein Closure is defined as no discrete open segment of vein > 5cm in length within the 
treatment section of the selected saphenous vein as assessed by duplex ultrasound. 
Vein Competency is defined as absence of retrograde flow >500 ms (0.5 sec) within the 
treatment section of the selected saphenous vein as assessed by duplex ultrasound. 
The endpoint is achieved when ultrasound images demonstrate vein closure and/or vein 
competency as read by an independent vascular core lab.  
Refer to the Appendix C VICARES Clinical Study Procedure Manual for details.  
8.2.3. 
Improvement in Patient Symptoms 
Improvement in patient reported symptoms will be assessed at Week 12 post-treatment based on 
the responses to a subset of questions from VEINES-QOL/Sym questionnaire (an instrument of 
Varicose Vein Symptom Burden in patients with Superficial Venous); i.e., the 7-day average of 
five symptoms from Question 1 of the questionnaire referred to as HASTI symptoms 
(Heaviness, Achiness, Swelling, Throbbing, Itching). 
The patient will record responses to HASTI symptom questions for 7 consecutive days at 
specific time points during the study as follows: 
• For 7 days prior to the Day of Treatment 
• For 7 days post Day of Treatment  
• For 7 days, prior to Week 6 follow-up  
• For 7 days, prior to Week 12 follow-up   
,  
 
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9. 
WITHDRAWAL OF PATIENTS FROM THE STUDY  
9.1. 
Prior to Randomization and Treatment  
Individuals who withdraw from the study prior to randomization and treatment are not 
considered to be enrolled patients in the study, will not be used for assessment, and no follow up 
is necessary.  Therefore, these individuals may be replaced. 
9.2. 
Post Randomization and Treatment  
Individuals who sign the Informed Consent and are randomized are considered enrolled patients 
and will be included in the Intent-To-Treat (ITT) analysis. 
Possible reasons for withdrawal (discontinuation) of a patient from the study include: 
Adverse Event (AE).  An adverse event, which in the opinion of the Investigator, 
indicates that discontinuation from study would be in the best interest of the patient. 
Patient will be followed and treated by the Investigator until the abnormal parameter or 
symptom has resolved or stabilized.  The reason for termination will be documented by 
the Investigator on the patient’s source documents. 
Patient withdrawal of consent (or assent). Patient may be withdrawn from the study at 
any time if the patient, the Investigator, or the Sponsor feels that it is not in the patient’s 
best interest to continue. If the patient withdraws prior to completing the Week 12 Post 
Treatment Follow up Visit, patient is considered Lost-to-Follow up.  In this event the 
Investigator should make at least two documented attempts to contact the patient and to 
have an early discontinuation visit. The reasons for patient withdrawal should be 
documented on the patient’s source documents, if known.  
Patient noncompliant with study procedures. If a patient is withdrawn prior to 
treatment due to lack of compliance with study procedures, the reason for withdrawal 
will be documented by the Investigator on the patient’s source documents. 
Sponsor requests early termination of study.  If patient discontinuation (post 
randomization and treatment) is due to early termination of the study by the Sponsor, 
patient will be followed per the follow-up schedule to completion of the post-treatment 
Week 12 visit. The reason for termination will be documented by the Investigator on the 
patient’s source documents. 
Page 37 of 101

10. 
SAFETY MONITORING DURING THE STUDY 
10.1. 
Vital Signs 
Vital signs will be taken at Visits 1 through Visit 6 (Screening through Week 12 post-treatment 
Visits). This should include temperature, pulse, respiratory rate, and blood pressure when 
patient is seated. Height and weight are required only at Screening Visit. 
10.2. 
History/Varicose Vein History/Physical Examination 
Medical and Vein history will be collected at the Screening (Visit 1). A physical examination 
will be performed and documented on the appropriate eCRF at Screening Visits. 
10.3. 
Clinical Laboratory Safety Assessments 
Hematological Assessments include: hemolysis, hematocrit, reticulocyte count, haptoglobins as 
described in Section 8.1.  
Intravascular coagulations include: Plasma fibrinogen level, Plasma D-dimer level platelet 
count, Prothrombin time (PT), Partial thromboplastin time (PTT) as described in Section 8.1. 
Plasma D-dimer level assessments will be conducted at: Baseline (Visit 2) immediately post 
Treatment (Visit 3) and at Week 1 follow-up (V isit 4); then, only at subsequent follow-up visits 
[Week 6 (Visit 5) and Week 12 (Visit 6)] if the D-dimer level is higher than it was at Baseline 
as described in Section 8.1. 
Other parameters and/or increased frequency of examinations may be needed, depending on the 
findings during the clinical study. 
10.4. 
Post-treatment Local Effects  
Local effects such as hyperpigmentation, granuloma formation, and ulceration will be 
monitored. 
10.5. 
Identification and Description of Thromboembolic Events  
Identification, description and assessment of venous-thromboembolic events, including as 
follows: 
• Deep Vein Thrombus (DVT) – Clinical assessment and ultrasound imaging will be 
performed.  
• Pulmonary Embolism (PE) - Clinical assessment will be performed to evaluate for PE. If 
clinical assessment is suspicious for PE imaging will be obtained to confirm.  
• Post Ablation Superficial Thrombus Extension (PASTE) – Clinical assessment and 
ultrasound imaging will be performed.   
10.6. 
Assessment of Adverse Events 
Any observed or reported Adverse Event (AE) regardless of treatment group or suspected causal 
relationship to the ClariVein RES investigational product will be reported as described in 
Section 10.7.  
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For all AEs, the Investigator must pursue and obtain information adequate to determine the 
outcome of the AE; and to assess whether it meets the criteria for classification as a Serious AE 
(SAE). requiring immediate notification to Sponsor or its designated representative. 
10.7. 
Adverse Event Definition 
10.7.1. 
Pharmaceutical Product 
An adverse event (AE) is any untoward medical occurrence in a patient or clinical 
investigation subject administered a pharmaceutical product. The occurrence, which may or 
may not have a causal relationship with the investigational treatment, may include any clinical 
or laboratory change that does not commonly occur in that patient and is considered clinically 
significant. 
A suspected adverse reaction means any AE for which there is a “reasonable possibility” that 
the drug caused the AE.  For reporting under this protocol, “reasonable possibility” means there 
is evidence to suggest a causal relationship between the drug and the AE.   
Pre-existing conditions, illnesses present prior to the p signing the Informed Consent Form, are 
documented on the medical history eCRF.  Pre-existing conditions that worsen during the study 
are entered on the AE eCRF. 
All out-of-range laboratory values will be deemed as clinically significant or not clinically 
significant by the Investigator. Clinically significant values will be considered AEs and 
recorded as such on the eCRFs. 
Pregnancy is not considered an AE; however, a patient who becomes pregnant after Treatment 
should be followed as described in Section 10.12. 
If the patient experiences a worsening or complication of a concurrent condition that was 
present before exposure to the study drug, the worsening or complication should be recorded as 
an AE.  Investigators should ensure that the AE term recorded captures the change in the 
condition (e.g., worsening of “…”).   
Pre-planned procedures (surgeries or therapies) that were scheduled prior to the start of study 
drug exposure are not considered AEs.  However, if a pre-planned procedure is performed 
earlier than anticipated (e.g., as an emergency) due to a worsening of the pre-existing condition, 
the worsening of the condition should be captured as an AE.   
Elective procedures performed where there is no change in the patient’s medical condition 
should not be recorded as AEs, but should be documented as concomitant procedures.  
10.7.2. 
Medical Device 
A Medical Device Report, “MDR reportable events” are events that manufacturers become 
aware of that reasonably suggest that one of their marketed devices may have caused or 
contributed to a death or serious injury, or has malfunctioned and the malfunction of the device 
or a similar device that they market would be likely to cause or contribute to a death or serious 
injury if the malfunction were to recur. 
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Serious Injury - An injury must meet the definition of “serious injury” in 21 CFR 803.3 for an 
event to be reportable as a serious injury. A “serious injury” is an injury or illness that [21 CFR 
803.3]: 
•  Is life threatening; or 
• Results in permanent impairment of a body function or permanent damage to a body 
structure; or  
•  Necessitates medical or surgical intervention to preclude permanent impairment of a 
body function or permanent damage to a body structure.  
“Permanent” means irreversible impairment or damage to a body structure or function, 
excluding trivial impairment or damage [21 CFR 803.3]. Note that not all cosmetic damage will 
be considered trivial. Furthermore, a life-threatening injury meets the definition of serious 
injury, regardless of whether the threat was “temporary.” It should also be noted that a device 
does not have to malfunction for it to cause or contribute to a serious injury. Even though a 
device may function properly, it can still cause or contribute to a death or serious injury. 
“Malfunction” means the failure of a device to meet its performance specifications or otherwise 
perform as intended [21 CFR 803.3]. Performance specifications include all claims made in the 
labeling for the device.  
A malfunction is reportable if any one of the following is true:  
• The chance of a death or serious injury occurring as a result of a recurrence of the 
malfunction is not remote;  
• The consequences of the malfunction affect the device in a catastrophic manner that 
may lead to a death or serious injury;  
• The malfunction results in the failure of the device to perform its essential function 
and compromises the device’s therapeutic, monitoring or diagnostic effectiveness, 
which could cause or contribute to a death or serious injury or other significant 
adverse device experiences required by regulation. (The essential function of a 
device refers not only to the device’s labeled use, but also to any use widely 
prescribed within the practice of medicine.);  
• The malfunction involves:  
− a long-term implant or  
− a device that is considered to be life-supporting or life-sustaining and thus is 
essential to maintaining human life; or  
• The manufacturer takes, or would be required to take, an action under section 518 or 
519(g)10 of the FD&C Act as a result of the malfunction of the device or other 
similar devices (see explanation of “similar device” below, and see section 2.21 of 
this guidance for an explanation of “remedial action”). 
10.8. 
Definition of Serious Adverse Event 
An SAE is any AE, occurring at any dose and regardless of causality that: 
Page 40 of 101

• Results in death 
• Is life-threatening. The patient is at immediate risk of death from the reaction as it 
occurs. This does not include reaction that, had it occurred in a more severe form, 
might have caused death. 
• Requires inpatient hospitalization or prolongation of existing hospitalization. 
Hospital admission for elective surgery scheduled prior to study entry is not 
considered an SAE. 
• Results in a persistent or significant incapacity or substantial disruption of the ability 
to conduct normal life functions) 
• Is a congenital anomaly/birth defect 
• Important Medical Events that may not result in death, be life-threatening, or require 
hospitalization may be considered serious AEs when, based upon appropriate 
medical judgment, they may jeopardize the patient and may require medical or 
surgical intervention to prevent one of the outcomes listed above. 
10.9. 
Follow-up Information on a Serious Adverse Event 
Appropriate diagnostic tests should be performed and therapeutic measures, as medically 
indicated, should be instituted. Appropriate consultation and follow-up evaluations should be 
carried out until the event has resolved or is otherwise explained by the Investigator. For all 
SAEs, the Investigator will make at least two documented efforts for a follow up, when 
necessary and provide information to Vascular Insights.  
In addition, an Investigator may be requested by Vascular Insights to obtain specific 
information in an expedited manner. This information may be more detailed than that captured 
on the AE form. In general, this will include a description of the AE in sufficient detail to allow 
for a complete medical assessment of the case and independent determination of possible 
causality. Information on other possible causes such as concomitant medication and illnesses 
must be provided. Event will be followed up until resolved. 
10.10. 
Abnormal Test Findings 
The criteria for determining whether an abnormal objective test finding should be reported as an 
AE are as follows: 
• Test result is associated with accompanying symptoms that are considered clinically 
significant in the opinion of the Investigator. 
• Test result requires additional diagnostic testing (other than merely repeating an 
abnormal test) or medical/surgical intervention. 
• Test result leads to discontinuation from the study, significant additional concomitant 
drug treatment, or other therapy. 
• Test result is considered an AE by the Investigator or Sponsor. 
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10.11. 
Relationship to Study Treatment 
The assessment of study drug relationship to each AE will be reported on the appropriate source 
document (and SAE form, in the event of an SAE) by the Investigator (or designated sub-
Investigator) per his/her best clinical judgment. The criteria listed in Table 4 should be used to 
guide this assessment. Please note that not all criteria must be present to be indicative of a 
particular drug relationship. All study drugs are considered “test drugs” for the purposes of the 
definitions listed in Table 4. 
Table 4:  
Adverse Event Causality Guidelines 
Relationship 
Criteria for Assessment 
Definitely related 
There is evidence of exposure to the test drug; and 
- 
The temporal sequence of the AE onset relative to administration of the test 
drug is reasonable. 
- 
The AE is more likely explained by the test drug than by another cause. 
- 
Dechallenge (if performed) is positive. 
- 
Rechallenge (if feasible) is positive. 
- 
The AE shows a pattern consistent with previous knowledge of the test drug or 
test drug class. 
Probably related  
There is evidence of exposure to the test drug; and 
- 
The temporal sequence of the AE onset relative to administration of the test 
drug is reasonable. 
- 
The AE is more likely explained by the test drug than by another cause. 
- 
Dechallenge (if performed) is positive. 
Possibly related 
There is evidence of exposure to the test drug; and 
- 
the temporal sequence of the AE onset relative to the administration of the test 
drug is reasonable; and 
- 
the AE could have been due to another equally likely cause. 
Not related 
There is evidence of exposure to the test drug; and 
- 
there is another more likely cause of the AE, 
- 
dechallenge (if performed) is negative or ambiguous, 
- 
rechallenge (if performed) is negative or ambiguous. 
The patient did not receive the test drug; or 
Temporal sequence of the AE onset relative to administration of the test drug is not 
reasonable; or   
There is another obvious cause of the AE. 
 
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10.12. 
Pregnancy 
At Screening, pre-menopausal females of childbearing potential will be informed that active 
pregnancy and breast feeding are exclusion criteria for participation in this study. As such, these 
individuals must agree to pregnancy testing at Screening, Baseline, and (prior to treatment) at 
Day of Treatment visits; agree to use effective medical means of preventing contraception from 
Screening to completion of the Week12 post-treatment follow-up visit; and must not breast feed 
until completion of the Week 12 post-treatment follow-up visit.  Urine pregnancy tests will be 
conducted at Screening (Visit 1) and prior to treatment on Day of Treatment (Visit 3).  A serum 
pregnancy test will be performed at the Baseline (Visit 2).  
If a patient is confirmed pregnant post Treatment and prior to completing the study, (completion 
of the Week 12 post treatment visit), the Investigator must immediately notify the Study 
Medical Monitor of this event and record the pregnancy on the appropriate pregnancy form. 
Initial information regarding a pregnancy must be immediately forwarded by the study monitor 
or designee to Sponsor’s Drug Safety and Pharmacovigilance contact or its designated 
representative. 
The Investigator should follow the patient to the end of the pregnancy and must immediately 
report follow-up information to the Sponsor regarding the course of the pregnancy, including 
perinatal and neonatal outcome, regardless of whether the patient has discontinued participation 
in the study.  
10.13. 
Monitoring and Recording of Adverse Events 
AE data collection will begin after a patient signs the ICF and will continue until completion of 
their Week 12 post-treatment follow-up visit (Visit 6). Any AE or SAE having an onset after the 
completion of Visit 6 (end of the study visit) will not be collected or reported unless the 
Investigator feels that the event may be related to the study drug. 
Patients will be instructed by the Investigator or designee to report the occurrence of any AE. 
All volunteered, elicited, and observed AEs are to be recorded on the AE eCRFs.  
The Investigator will assess all AEs regarding any causal relationship to the study drug 
(Section 10.11), the intensity (severity) of the event, action taken, and patient outcome. 
The following criteria will be used to guide the assessment of intensity (severity): 
• 
Mild: An adverse event that is asymptomatic or barely noticeable to the patient; not 
interfering with patient’s daily activity performance or functioning; generally, not 
requiring alteration or cessation of study drug administration; and/or ordinarily not 
needing therapeutic intervention 
• 
Moderate: An adverse event of sufficient severity as to possibly make the patient 
moderately uncomfortable; some interference with the patient’s daily activity 
performance or functioning; generally, not impairing the patient’s ability to continue 
in the study; and/or possibly needing therapeutic intervention. 
• 
Severe: An adverse event generally causing severe discomfort; major interference 
with the patient’s daily activity performance or functioning; generally requiring 
alteration or cessation of study drug administration; life-threatening; resulting in 
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significant disability or incapacity; and/or generally requiring therapeutic 
intervention. 
All AEs will be followed until resolution, until deemed stable by the Investigator, or until the 
patient is deemed by the Investigator to be lost to follow-up.  
For clinical study safety reporting purposes, the most recent version of the Investigator’s 
Brochure (IB) will be used as the reference document to designate event expectedness. An AE 
is considered unexpected if the AE is not listed in the current IB or is not listed in the IB at the 
specificity or severity observed. 
Withdrawal from the study because of an AE and any therapeutic measures that are taken shall 
be at the discretion of the Investigator. If a patient withdraws from the study for any reason, any 
ongoing AEs will be followed until resolution, until deemed stable by the Investigator, or until 
the patient is deemed by the Investigator to be lost to follow-up. 
10.14. 
Reporting of Serious Adverse Events 
Serious AEs (SAE) which occur from the time the patient provides informed consent to the end 
of the study, require immediate notification to VI’s Compliance Department or its designated 
representative.  All SAEs must be reported within 24 hours of discovery, by faxing or emailing 
the report. 
The written report should be submitted on the SAE form provided for this purpose. The report 
must include the Investigator’s opinion as to whether the event is study drug-related. If this 
relationship is determined to be possibly, probably, or definitely related to study drug, evidence 
to support this assessment must also be provided. 
Documentation regarding the adverse event should be made as to the nature, date of onset, end 
date, severity, and relationship to the investigational product, action(s) taken, seriousness, and 
outcome of any sign or symptom observed by the Investigator or reported by the patient upon 
direct questioning.  
Expected outcomes related to the procedure should not be recorded as adverse events. 
10.15. 
Sponsor Responsibility for Expedited Safety Reports 
Vascular Insights or designee will notify Investigators of all reportable SAEs. This notification 
will be in the form of an expedited safety report. Upon receiving such notices, the Investigator 
must review and retain the notice with other study-related documentation. 
The Investigator and Institutional Review Board (IRB)/Ethics Committee (EC) will determine if 
the informed consent form requires revision. The Investigator should also comply with the 
IRB/EC procedures for reporting any other safety information. 
Suspected serious adverse reactions and other significant safety issues reported from the 
investigational product development program shall be reported to the relevant competent health 
authorities in all concerned countries per local regulations (either as expedited safety reports 
and/or in aggregate reports), by the Sponsor or its designated representative. 
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For use of central IRB for the study, the Sponsor or its designated representative is responsible 
for submission (or ensuring the submission) of the expedited safety reports to the appropriate 
IRB for the study. 
For this blinded trial, treatment will be unblinded by the Sponsor as necessary to determine the 
need for expedited reporting, in accordance with global requirements. 
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11. 
PLANNED STATISTICAL METHODS FOR ASSESSMENT OF 
EFFICACY AND SAFETY 
11.1. 
General Considerations 
Continuous variables will be summarized using descriptive statistics, specifically the mean, 
median, standard deviation, minimum and maximum. Categorical variables will be summarized 
using frequencies and percentages.  All statistical tests will be performed at the 0.05 
significance level (p -value ≤ 0.050) unless otherwise indicated.  
For efficacy analyses, missing post-treatment data will be imputed using last observation carried 
forward (LOCF). Missing safety data will not be imputed. 
11.2. 
Analysis Populations 
11.2.1. 
Safety Population 
The safety population will include all patients who are treated with ClariVein RES. Patients will 
be analyzed per the treatment they received. 
11.2.2. 
Modified Intent-to-Treat (MITT) Population 
The MITT population will include all randomized and treated patients in the safety population 
who have baseline and at least one post-treatment assessment for the primary efficacy variable. 
Patients will be analyzed per their randomized dose of STS. 
11.3. 
Primary Efficacy Endpoint  
Improvement in patient reported symptoms at Week 12 post-treatment as compared to Baseline 
using the weekly average HASTI (Heaviness, Achiness, Swelling, Throbbing, Itching) symptom 
score from the VEINES-QOL/Sym, an instrument of Varicose Vein Symptom Burden in 
patients with Superficial Venous. 
11.3.1. 
Secondary Efficacy Endpoint  
Elimination of saphenous vein reflux at Week 12 post-treatment as demonstrated by duplex 
ultrasound. 
11.4. 
Tertiary Endpoints 
Assessment of patient improvement as compared to the Baseline assessment using the following 
scales at post treatment Week 12 on the following Quality of Life or patient improvement 
assessment: 
• Clinical-Etiology-Anatomy-Pathophysiology (CEAP) Classification 
• European Quality of Life scale (EQ-5D-5L) 
• Revised Venous Clinical Severity Score (rVCSS) 
• Wong Baker Visual Analog Pain Scale (VAS)  
Page 46 of 101

11.5. 
Exploratory Endpoints 
11.5.1. 
Week 1 
Assessment of change in VEINES-QOL/Sym (Questions 1 through 8) at post treatment follow-
up visit at Week 1 as compared to Baseline 
11.5.2. 
Week 6  
Assessment of change in VEINES-QOL/Sym (Questions 1 through 8) at Week 6 post treatment 
follow-up visit as compared to Baseline 
11.5.3. 
Week 12 
Assessment of change in VEINES-QOL/Sym (Question 1, excluding HASTI, through Question 
8) at Week 12 post treatment follow-up visit as compared to Baseline 
11.6. 
Determination of Sample Size 
The sample size of 50 patients (25 patients per treatment group) is based on both efficacy and 
safety considerations. The primary endpoint is change from baseline in the weekly average 
symptom score of a subset of the VEINES-QOL/Sym questionnaire (based on HASTI 
symptoms from Question 1: Heaviness, Achiness, Swelling, Throbbing, Itching) at Week 12 for 
both treatment groups combined.  
Assuming a true mean change from baseline to 12 weeks of -5.44 and a standard deviation of 
3.52 for the change from baseline, a sample size of 50 would provide at least 99% power to 
reject the null hypothesis that the mean change from baseline equals 0, based on a one-sample 
t-test with a 0.050 two-sided significance level. A sample size of 25 (that is, by treatment group) 
would also provide at least 99% power to reject the null hypothesis that the mean change from 
baseline equals 0.  
11.7. 
Analysis of Primary Efficacy Endpoint 
The null hypothesis is that the mean change from baseline for the primary efficacy endpoint 
equals 0. The alternative hypothesis is that the mean change does not equal 0.  
The primary analysis will be a one-sample t-test for both treatment groups combined, to test the 
null hypothesis that the mean change from baseline equals 0.  
To evaluate a dose-response relationship, two analyses will be performed. First, the primary 
analysis will be performed for each treatment group separately. Second, an analysis of 
covariance (ANCOVA) will be performed to compare the change from baseline for STS 1% 
versus STS 3% with treatment as a class variable and with the baseline weekly average HASTI 
symptom score as a covariate in the model. 
Missing data for the Week 12 weekly average HASTI symptom score will be imputed using the 
last observation carried forward (LOCF) method. 
Page 47 of 101

11.8. 
Analysis of Other Efficacy Endpoints 
The primary analysis for each endpoint will use LOCF methodology for the imputation of 
missing data. 
Continuous endpoints will be summarized using descriptive statistics and will be analyzed using 
a one-sample t-test to test the null hypothesis that the mean change from baseline equals 0.  
The secondary efficacy endpoint, the elimination of saphenous vein reflux at Week 12 post-
treatment, will be summarized for both treatments combined using the count and percentage, 
together with a 95% Wilson (score) confidence interval for the proportion.    
To evaluate a dose-response relationship, two analyses will be performed for each endpoint. 
First, the analyses performed for both treatments combined will be repeated for each treatment 
group separately. Secondly, for continuous endpoints, an ANCOVA will be performed to 
compare the change from baseline for STS 1% versus STS 3% with treatment as the class 
variable and with baseline score as the covariate. For vein closure rate, the treatment difference 
for STS 1% versus STS 3% for the proportion will be assessed by a chi-square test together with 
a 95% Wilson (score) confidence interval for the treatment difference. 
For each continuous endpoint, the change from baseline to each scheduled visit will be analyzed 
in the same manner as the Week 12 assessment. Both LOCF and observed cases analyses will 
be performed. 
The correlation between Week 12 efficacy endpoints will be explored using a Spearman 
correlation coefficient for pairs of quantitative variables, and Kendal’s tau for the correlation of 
the elimination of saphenous vein reflux (yes, no) with quantitative variables.  
11.9. 
Analysis of the Safety Endpoints 
Safety will be assessed based on adverse events (including selected events of interest), clinical 
laboratory tests, physical examination, vital signs, and concomitant medications. Safety data 
will be summarized by treatment group and overall. No statistical testing will be performed for 
safety data. 
AEs will be coded using Medical Dictionary for Regulatory Activities (MedDRA). Treatment-
emergent events are those adverse events that begin or worsen after initiation of the treatment 
procedure. The number and percentage of patients reporting treatment-emergent adverse events 
will be summarized by MedDRA System Organ Class (SOC) and Preferred Term. Treatment-
emergent adverse events will be further summarized by severity and relationship to the 
treatment procedure. 
Physical examination data will be listed per patient. No summaries will be provided. 
Vitals signs data will be summarized by descriptive statistics for baseline, each post-treatment 
visit, and the change from baseline to each post-treatment visit. 
All prior and concomitant medications will be coded using the World Health Organization Drug 
Dictionary. Concomitant medications are medications taken on or after the treatment day, 
regardless of when they were started. Prior medications are medications taken before the 
treatment day, regardless of when they ended. The number and percentage of patients using 
Page 48 of 101

concomitant medications will be summarized by Anatomical Therapeutic Chemical (ATC) 3 
classification and preferred name. 
Overall safety assessment will include evaluation of the following specific events: 
• Neurological events including: stroke, TIA, visual symptoms, migraines 
• Venous Thromboembolic Events (VTE) in the treated leg 
• Post-treatment local effects including hyperpigmentation, granuloma formation, 
ulceration in the treated leg 
• Thrombus formation in deep veins (e.g., femoral vein) in the treated leg 
• Post-ablation superficial thrombus extension (PASTE) in the treated leg 
• Local and systemic allergic reactions, including anaphylaxis  
11.10. 
Protocol Deviations/Violations 
Protocol deviations will be identified prior to database lock and will be listed by treatment 
group in the clinical study report. A protocol violation occurs when the patient, Investigator, or 
Sponsor fails to adhere to significant protocol requirements affecting the inclusion/exclusion 
criteria, patient safety, or primary endpoint criteria.  
Protocol violations for this study include, but are not limited to, the following: 
• Failure to meet inclusion/exclusion criteria 
• Use of a prohibited concomitant medication 
• Failure to attend two post treatment visits: of which one is Week 12  
Failure to comply with Good Clinical Practice (GCP) guidelines will result in a protocol 
violation. Sponsor will determine if a protocol violation will result in withdrawal of a patient 
from the study. 
When a protocol violation occurs, it will be discussed with the Investigator and a Protocol 
Violation Form detailing the violation will be generated. This form will be signed by a Sponsor 
representative and the Investigator. A copy of the form will be filed in the site’s regulatory 
binder and in the Sponsor’s files. 
Page 49 of 101

12. 
ETHICS AND GENERAL CLINICAL TRIAL CONDUCT 
CONSIDERATIONS 
The study will be conducted according GCP guidelines and the applicable regulatory 
requirements, and in accordance with the ethical standards that have their origin in the 
Declaration of Helsinki, Protection of Human Volunteers (21 CFR 50), Institutional Review 
Boards (21 CFR 56), and Obligations of Clinical Investigators (21 CFR 312). To ensure ethical 
conduct of this clinical study, Investigators will be expected to adhere to the basic principles in 
recognized guidelines such the Belmont Report and the International Ethical Guidelines for 
Biomedical Research Involving Human Subjects. 
To maintain confidentiality at the Investigational site, all laboratory specimens, evaluation 
forms, reports, and other records will be identified by a coded number and patient’s initials 
only. All study records will be kept in a locked file cabinet.  Coded sheets linking a patient’s 
name to a patient identification number will be stored in a separately locked file cabinet. 
Clinical information will not be released without written permission of the patient, except as 
necessary for monitoring by the FDA. The Investigator must also comply with all applicable 
privacy regulations (e.g., Health Insurance Portability and Accountability Act of 1996, EU Data 
Protection Directive 95/46/EC). 
12.1. 
Institutional Review Board or Ethics Committee Approval 
The protocol and the informed consent document must have the initial and at least annual (when 
required) approval of an IRB/EC. The signed IRB/EC approval letter must identify the 
documents approved (i.e., list the Investigator’s name, the protocol number and title, the date of 
the protocol and informed consent document, and the date of approval of the protocol and the 
informed consent document). Any advertisements used to recruit patients should also be 
reviewed by the IRB/EC. The Sponsor will not ship clinical supplies until a signed approval 
letter from the IRB/EC has been received and a Clinical Trial Agreement has been signed by the 
Sponsor and the clinical site. 
12.2. 
Informed Consent 
Informed consent form (ICF) will be obtained in accordance with the Declaration of Helsinki, 
ICH GCP, US Code of Federal Regulations for Protection of Human Subjects (21 CFR 
50.25[a,b], CFR 50.27, and CFR Part 56, Subpart A), the Health Insurance Portability and 
Accountability Act (HIPAA, if applicable), and local regulations. 
A master ICF template will be provided by VI or its representative to each investigational study 
site. The Investigator will review and modify this document, if necessary. If any modifications 
are made, they must be approved by VI or its representative. The Investigator will provide the 
final informed consent form, assent, and HIPAA authorization to the Sponsor or designee for 
approval prior to submission to the IRB/EC. The consent form generated by the Investigator 
must be acceptable to the Sponsor and be approved by the IRB/EC. The written consent 
document will embody the elements of informed consent as described in the International 
Conference on Harmonization and will also comply with local regulations. The Investigator will 
send an IRB/EC-approved copy of the Informed Consent Form to the Sponsor (or designee) for 
Page 50 of 101

the study file. In case of Central IRB approval, the process may be handled by the Sponsor or 
Sponsor’s Representative and a copy of the approval provided to the Investigator. 
A properly executed, signed ICF will be obtained from each patient prior to enter the patient 
into the trial. Information should be given in both oral and written form, and the patient (or 
patient’s legal representatives in the case of language translation needed) must be given ample 
opportunity to inquire about details of the study. If appropriate and required by the local 
IRB/EC, assent from the patient will also be obtained. If a patient is unable to sign the ICF and 
the HIPAA authorization, a legal representative may sign for the patient. A copy of the signed 
ICF (and assent) will be given to the patient or legal representative of the patient and the 
original will be maintained with the patient’s records. 
The Investigator is responsible for maintaining each patient’s consent form(s) in the 
Investigator’s site file and providing each patient, or the patient’s parent or legal representative 
(for minors), with a copy of the signed and dated consent form(s). 
Nothing in this protocol or the regulations is intended to limit the authority of an Investigator to 
provide emergency medical care under applicable regulations. In addition, the Investigator 
should be aware that some regulations require that he/she permit regulatory agencies to conduct 
inspections and review records pertaining to this clinical investigation. 
12.3. 
Patient Confidentiality 
All unpublished information that the Sponsor gives to the Investigator, and all information 
generated about the study, shall be kept confidential and shall not be disclosed to a third party 
without the prior written consent of the Sponsor or published prior to the Sponsor’s review in 
accordance with the terms of the Clinical Trial Agreement. When the Sponsor generates reports 
for presentations to regulatory agencies, one or more of the Investigators who have contributed 
significantly to the study will be asked to endorse the final report. The endorsement is required 
by some regulatory agencies. The Investigator shall not make a patent application based on the 
results of this study and shall not assist any third party in making such an application without 
the written authorization of the Sponsor. 
12.4. 
Data Monitoring Committee(s) 
A Data Monitoring Committee is not planned for this Phase 2 Pilot study. 
Page 51 of 101

13. 
REGULATORY/ADMINISTRATIVE PROCEDURES AND 
DOCUMENTATION 
13.1. 
Quality Control and Quality Assurance 
The Sponsor (Vascular Insights, LLC) performs quality control and assurance checks on all 
clinical studies that it sponsors. Prior to enrolling any patients into this study, the Sponsor 
personnel or its designee and the Investigator will review the protocol, the Clinical 
Investigator's Brochure, the eCRFs and instructions for their completion, the procedure for 
obtaining informed consent, and the procedure for reporting AEs.  
A qualified representative of the Sponsor will monitor the conduct of the study by visiting the 
site and by contacting the site by telephone. During the visits, information recorded in the 
eCRFs will be verified against source documents. The Sponsor’s Medical Monitor will review 
the data for safety information. The Sponsor’s clinical data associates or designees will review 
the data for legibility, completeness, and logical consistency. Additionally, the Sponsor’s 
clinical data associates will use automated validation programs to help identify missing data, 
selected protocol violations, out-of-range data, and other data inconsistencies. Requests for data 
clarification or correction will be added to the electronic database and reviewed by the 
investigational site for resolution. The Sponsor may visit the investigational site and perform a 
quality check of the eCRFs against source documents. 
13.2. 
Investigators and Study Administrative Structure 
The Investigator must provide the Sponsor with the following documents BEFORE enrolling 
any patients: 
• An executed Clinical Trial Agreement 
• FDA Form 1572 
• Documentation of financial disclosure 
• Principal Investigator’s Curriculum Vitae 
• IRB/EC approval of the protocol 
• IRB/EC approved consent form 
• And any other documentation required by US rules and regulations and/or good clinical 
practice 
If any Investigator retires, relocates, or otherwise withdraws from conducting the study, the 
responsibility for maintaining records may be transferred to another person (Sponsor, IRB/EC, 
or other Investigators) who accepts the responsibility. The Sponsor must be notified in writing 
and must agree to the change. An updated FDA Form 1572 will be filed with the Sponsor and 
the FDA for any changes in the study personnel reported in the current FDA Form 1572. 
13.3. 
Study Monitoring 
The study will be monitored by representatives of the Sponsor. Site visits are made before the 
study begins, at regular intervals during the study, and at the study closeout. Communication by 
Page 52 of 101

telephone, mail, and e-mail may be used as needed to supplement site visits. The Investigator 
and study personnel will cooperate with the Sponsor, provide all appropriate documentation, 
and be available to discuss the study. The purpose of site visits is to verify: 
• Adherence to the protocol (the Investigator should document and explain any 
deviation from the approved protocol) 
• Completeness and accuracy of the eCRFs and the dispensing and inventory record 
(adequate time and space for these visits should be allocated by the Investigator) 
• Compliance with regulations (the verification will require comparison of the source 
documents to the eCRFs) 
13.4. 
Data Collection and Electronic Case Report Forms 
Study-specific eCRFs will be made available to the Investigative site. Study data contained in 
source documentation will be entered in the eCRFs for all patients enrolled in the study. All 
pertinent data records are to be submitted to the Sponsor during and/or at completion or 
termination of the study. 
13.5. 
Access to Source Documentation 
The Investigator agrees that qualified representatives of the Sponsor and regulatory agencies 
will have the right, both during and after this study, to conduct inspections and to audit and 
review medical records pertinent to the clinical study as permitted by the regulations. Patients 
will not be identified by name in any reports stemming from the study, and confidentiality of 
information in medical records will be preserved. The confidentiality of the patient will be 
maintained unless disclosure is required by regulations. Accordingly, the following statement 
(or similar statement) that permits the release of the patient’s medical records will be included 
in the informed consent document: 
Representatives of regulatory agencies, IRB/EC, the Sponsor, and the patient’s personal 
Investigator may review the patient medical records and all information related to this study as 
permitted by law. Patient identity will remain confidential unless disclosure is required by law. 
13.6. 
Study Documentation and Retention of Records 
Trial documents (including correspondence related to this clinical study, patient records, source 
documents, eCRFs, study drug inventory records, and IRB/EC and Sponsor correspondence 
pertaining to the study, original patient, laboratory, and study drug inventory records relating to 
the study) should be retained until at least 2 years after the last approval of a marketing 
application in an ICH region and until there are no pending or planned marketing applications in 
an ICH region (that is at least 15 years or at least 2 years have elapsed since the formal 
discontinuation of clinical development of the product). Trial documents should be retained for 
a longer period if required by applicable regulatory requirements or by agreement with the 
Sponsor. Thereafter, records will not be destroyed without giving the Sponsor prior written 
notice and the opportunity to further store such records, at the Sponsor’s cost and expense. 
Page 53 of 101

14. 
DISCLOSURE OF DATA AND PUBLICATION 
The Investigator must notify the IRB/EC of the conclusion of the clinical trial within 3 months 
of the completion or termination of the study. The final report sent to the IRB/EC should also be 
sent to the Sponsor. This report, along with the completed eCRFs, constitutes the final summary 
to the Sponsor, thereby fulfilling the Investigator’s regulatory responsibility. 
Section 801 of the FDA Amendments Act mandates the registration with ClinicalTrials.gov of 
certain clinical trials of drugs (including biological products) and medical devices subject to 
FDA regulations for any disease or condition. The International Committee of Medical Journal 
Editors (ICMJE) requires trial registration as a condition for publication of research results 
generated by a clinical trial (http://www.icmje.org [Accessed08 December 2016). 
Page 54 of 101

15. 
REFERENCES 
510(k) K071468 
510(k) K153502 
ANDA 40541 
NDA 05970 
NDA 205098 
PMA P140018 
Cavezzi A., Frullini A, Sclerosing foam in the treatment of varicose veins and telangiectases: 
history and analysis of safety and complications, Dermatol Surg. 2002 Jan; 28(1):11-5. 
Coon WW, Willis PW 3rd, Keller JB, Venous thromboembolism and other venous disease in 
the Tecumseh community health study., Circulation. 1973 Oct; 48(4):839-46. 
Criqui MH, Jamosmos M, Fronek A, Denenberg JO, Langer RD, Bergan J, Golomb BA., 
Chronic venous disease in an ethnically diverse population: The San Diego Population Study., 
Am J Epidemiol. 2003 Sep 1;158(5):448-56. 
Frullini A, Quantitative venous severity scoring using venous arterial flow index by duplex 
sonography., Dermatol Surg. 2003 Jun;29(6):678-9; author reply 679. 
Hamel-Desnos C, Desnos P, Wollmann JC, Ouvry P, Mako S, Allaert FA, Evaluation of the 
efficacy of polidocanol in the form of foam compared with liquid form in sclerotherapy of the 
greater saphenous vein: initial results., Dermatol Surg. 2003 Dec;29(12):1170-5; discussion 
1175. 
Hume M, A venous renaissance? J Vasc Surg. 1992 Jun;15(6):947-51. 
Kistner RL, Eklof B, Masuda EM., Diagnosis of chronic venous disease of the lower 
extremities: the "CEAP" classification. Mayo Clin Proc. 1996 Apr;71(4):338-45. Review. 
Labropoulos N, Leon M, Nicolaides AN, Sowade O, Volteas N, Ortega F, Chan P., Venous 
reflux in patients with previous deep venous thrombosis: correlation with ulceration and other 
symptoms., J Vasc Surg. 1994 Jul;20(1):20-6 
Labropoulos N, Leon M, Nicolaides AN, Giannoukas AD, Volteas N, Chan P., Superficial 
venous insufficiency: correlation of anatomic extent of reflux with clinical symptoms and 
signs., J Vasc Surg. 1994 Dec;20(6):953-8. 
Margolis DJ, Bilker W, Santanna J et al; Venous leg ulcer incidence and prevalence in the 
elderly. J Am Acad Dermatol 2002; 46(3): 381-6. PMID 11862173 
Millennium Research Group 2009 [No authors listed]; Reporting standards in venous disease 
1988; Reporting standards in venous disease. Prepared by the Subcommittee on Reporting 
Standards in Venous Disease, Ad Hoc Committee on Reporting Standards, Society for Vascular 
Surgery/North American Chapter, International Society for Cardiovascular Surgery., J Vasc 
Surg. 1988 Aug;8(2):172-81 
Page 55 of 101

Rasmussen LH, Lawaetz M, Bjoern L, Vennits B, Blemings A, Eklof B. Randomized clinical 
trial comparing endovenous laser ablation, radiofrequency ablation, foam sclerotherapy and 
surgical stripping for great saphenous varicose veins. Br J Surg. 2011 Aug;98(8):1079-87. 
Reporting standards in venous disease 1988 
Rice JB, Desai U, Cummings AK, Birnbaum HG, Skornicki M, Parsons N. Burden of venous 
leg ulcers in the United States. J Med Econ. 2014 May;17(5):347-56. 
Simka M, Majewski E., The social and economic burden of venous leg ulcers: focus on the role 
of micronized purified flavonoid fraction adjuvant therapy. Am J Clin Dermatol. 2003; 4(8): 
573-81 
US Department of Health and Welfare 1935-1936 
Van den Oever R1, Hepp B, Debbaut B, Simon I. Socio-economic impact of chronic venous 
insufficiency. An underestimated public health problem. Int Angiol. 1998 Sep;17(3):161-7. 
van Korlaar I1, Vossen C, Rosendaal F, Cameron L, Bovill E, Kaptein A., Quality of life in 
venous disease., Thromb Haemost. 2003 Jul;90(1):27-35. 
Page 56 of 101

APPENDIX A. ASSESSMENT OF EFFICACY AND SAFETY 
Description of Selected Scales for Efficacy Assessment presented in Table 5. 
Table 5: 
Description of Selected Scales for Efficacy Assessment 
Scale 
Relevance for its Selection for Study Assessment 
VEINES   
QOL 
The VEINES-QOL/SYM is a commonly used instrument to assess the effects 
of venous disease on patient quality of life and is well-accepted tools for the 
assessment of quality of life for patients with venous disease. VEINES QOL-
SYM has been found to be a reliable and valid patient outcome measures. 
VAS 
The pain VAS is a unidimensional measure of pain intensity, which has been 
widely used in diverse adult populations. The pain VAS is a continuous scale 
comprised of a horizontal line 100 mm in length, anchored by 2 verbal 
descriptors, “no pain” (score of 0) and “worst imaginable pain” (score of 100). 
The patient indicates the level of pain intensity by the position of a mark on 
the line. 
EQ-5D-5L 
The EuroQOL-5 Dimensions 5-Level questionnaire (EQ-5D-5L) is a 
standardized instrument for measuring generic health status. It is one of the 
most commonly used generic health status measurements, and its validity and 
reliability have been reported in various health conditions. 
In the description part of the EQ-5D, health status is measured in terms of five 
dimensions (5D): mobility, self-care, usual activities, pain/discomfort, and 
anxiety/depression. Mobility dimension asks about the person's walking 
ability. Self-care dimension asks about the ability to wash or dress by oneself, 
and usual activities dimension measures performance in "work, study, 
housework, family or leisure activities". In pain/discomfort dimension, it asks 
how much pain or discomfort they have, and in anxiety/depression dimension, 
it asks how much anxious or depressed they are. The respondents self-rate 
their level of severity for each dimension using the five-level (EQ-5D-5L) 
scale. 
In the evaluation part, the respondents evaluate their overall health status using 
the visual analog scale (VAS) 
rVCSS 
Chronic venous disease (CVD) has benefited from the institution of several 
assessment instruments designed to clarify elements of the disease process. 
Among these is the revised Venous Clinical Severity Score (rVCSS), which 
has proven to be a valuable tool for evaluating changes in condition over time 
with or without intervention. This revision increased the sensitivity and value 
of the VCSS in interpreting the language of venous disease. 
VCSS was originally designed and validated as an objective measure of 
disease severity in patients with CVD. The recent revision resolved ambiguity 
in the clinical descriptors and improved clarity and ease of use. The rVCSS 
consists of 10 items with scores ranging from 0 = Absent to 3 = Severe. The 
Page 57 of 101

rVCSS is calculated by the sum of the scores for the 10 items with a max score 
of 30. 
CEAP 
The CEAP classification is a method for evaluating venous disease of the leg 
based on clinical, etiologic, anatomic, and pathophysiologic data. 
 
Page 58 of 101

APPENDIX B. CLINICAL SUPPLIES 
CLINICAL SUPPLIES 
ClariVein RES (Study Drug and Delivery System) 
• STS (1% and 3%/)– Each shelf carton contains five (5) 2mL ampules.  The study drug will 
be double blinded; i.e., to drug concentration will be blind to the Investigator/Site personnel 
and to the patient. 
• ClariVein® (45,65, 85 cm) - Each shelf carton contains one (1) ClariVein infusion catheter 
within a Tyvek tray within a sealed pouch; 5 pouches within a shelf box. The study drug 
delivery system will not be blinded as the physician will select size based on patient 
anatomy.  
Sodium Tetradecyl Sulfate (STS) 1% and 3% Solution 
The ampules and cartons are double blinded using a blinded label; each ampule and carton 
carries a specific code for inventory accounting of the investigational drug at the ampule and the 
carton level.  
ClariVein (45, 65, and 85cm length models) 
The ClariVein product is commercially available in the USA under the name ClariVein IC.  For 
inventory control purposes of this study, the package will carry a label specifying for 
investigational use.  Blinding of the ClariVein product is not considered necessary to maintain 
integrity of the study, except for length all models are identical.   
Procedural Accessories 
The Sponsor may provide commercially available procedural accessories to the investigational 
sites for use during this study, as a convenience for the study sites.    
These supplies are not being evaluated in this clinical study; therefore, they will not be blinded 
and will not be labeled for investigational use.  Accessory products may include those identified 
in Table 6. 
Page 59 of 101

Table 6: 
Clinical Supplies 
VICARES - Clinical Supplies  
Clinical Study Product - ClariVein RES 
• 
STS package contains: 
(5) 2ml ampules of 1% or 3% solution  
• 
ClariVein® IC tray package contains: 
(1) ClariVein IC (catheter assembly with check valve and motor drive unit)  
(1) 5 ml syringe 
Commercially Available Procedural Accessories  
Pre-Treatment (Visit 1 -Screening; Visit 3 - Treatment Day) 
 (2)  Urine Pregnancy Kits 
Sterile Procedure Accessories 
(1) Vascular Access set with 0.018” guidewire  
(1) Gauze Pad: 2” x 2”  
(1) Gauze Pad:  4” x 4”  
(1)   1-inch 30-g needle 
(2) Filter needles (to draw up saline, and sclerosant) 
(1) 3 cc syringe (for local anesthetic) 
(1) 5 cc syringe (extra syringe for sclerosant) 
(1) 10 cc syringe (for saline purge) 
 
(1) Normal Saline (USP .09%) 10ml Vial 
(1) Local Anesthetic (Lidocaine 1%) 
(4) Writeable Syringe Labels  
(1) Sterile Marking Pen 
(1) Sterile Ultrasound Probe Cover   
(3) Sterile Ultrasound Gel Packs  
(1) Measuring Tape (centimeter scale)  
(2) Antiseptic Swab Sticks (e.g., Chloraprep) 
Post-treatment (Treatment Day)  
(1) Compression Hose  
 
Page 60 of 101

APPENDIX C. VICARES - PROTOCOL CL-001 CLINICAL STUDY 
PROCEDURE MANUAL VERSION 1.1 
 
Page 61 of 101

 
 
 
 
 
VICARES - Protocol CL-001 
 
Clinical Study Procedure Manual 
Version 1.1  
 
 
 
 
 
Vascular Insights, LLC 
1 Pine Hill Drive 
Two Batterymarch Park 
Suite 100 
Quincy, MA  02169 
USA 
Page 62 of 101

 
TABLE OF CONTENTS 
1. 
INTRODUCTION ........................................................................................................ 5 
1.1. 
VICARES CLINICAL STUDY OVERVIEW ............................................................ 5 
2. 
STUDY PRODUCT AND CLINICAL SUPPLIES .................................................... 6 
2.1. 
Clinical Study Product ................................................................................................. 6 
2.1.1. 
STS Solution ................................................................................................................ 6 
2.1.2. 
ClariVein ...................................................................................................................... 6 
2.1.3. 
Other Clinical Supplies ................................................................................................ 6 
2.2. 
Storage and Dispensing of ClariVein® RES Product and Clinical Supplies ................ 7 
3. 
SCREENING PERIOD [VISITS 1 AND 2 - SCREENING AND 
BASELINE] ................................................................................................................. 8 
3.1. 
Ultrasound Imaging ...................................................................................................... 8 
3.1.1. 
Imaging Format ............................................................................................................ 8 
3.1.2. 
Ultrasound Equipment Required .................................................................................. 8 
3.2. 
Visit 1 - Screening ........................................................................................................ 8 
3.2.1. 
Superficial Venous System .......................................................................................... 8 
3.2.2. 
Deep Venous System ................................................................................................... 9 
3.3. 
Visit 2 - Baseline ........................................................................................................ 10 
4. 
TREATMENT PERIOD ............................................................................................ 11 
4.1. 
Visit 3 - DAY OF TREATMENT .............................................................................. 11 
4.1.1. 
Patient Preparation ..................................................................................................... 11 
4.1.2. 
Preparation of Investigational Product ....................................................................... 11 
4.1.2.1. 
STS Solution Preparation ........................................................................................... 11 
4.1.2.2. 
Use of Aseptic Technique .......................................................................................... 12 
4.1.2.3. 
Withdrawal of STS from Ampules ............................................................................ 12 
4.1.2.4. 
STS Volume per Treatment Procedure ...................................................................... 12 
4.1.3. 
ClariVein® Device Preparation .................................................................................. 13 
4.1.4. 
Catheter Assembly Positioning .................................................................................. 15 
4.1.4.1. 
Catheter Sheath Marking ............................................................................................ 16 
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4.1.4.2. 
Joining Catheter Assembly to The Motor Drive Unit ................................................ 16 
4.1.4.3. 
Immediately Prior to Treatment ................................................................................. 17 
4.1.4.4. 
Activating the Rotatable Dispersion Wire ................................................................. 17 
4.1.4.5. 
Pull-back Resistance .................................................................................................. 19 
4.1.5. 
Steps After Completion of STS and Removal of ClariVein ...................................... 20 
4.1.6. 
Prior to Patient Discharge .......................................................................................... 21 
4.1.7. 
Product Disposal Instructions .................................................................................... 21 
4.1.7.1. 
Accountability of Investigational Product ................................................................. 21 
4.1.7.2. 
Disposition of Investigational Product ....................................................................... 21 
4.1.7.3. 
Inventory of Investigational Product .......................................................................... 22 
5. 
FOLLOW-UP PERIOD ............................................................................................. 23 
5.1. 
VISITS 4, 5, 6 - WEEKS 1, 6 AND 12 Post Treatment ............................................ 23 
5.1.1. 
Ultrasound Imaging Post Treatment .......................................................................... 23 
5.1.1.1. 
Closure ....................................................................................................................... 23 
5.1.2. 
Competence ................................................................................................................ 23 
5.1.3. 
Treatment Outcome .................................................................................................... 24 
5.1.3.1. 
Success ....................................................................................................................... 24 
5.1.3.2. 
Failure ........................................................................................................................ 24 
6. 
MONITORING OF SELECTED VASCULAR SAFETY EVENTS ........................ 25 
6.1. 
Identification and Description of Thromboembolic Events ....................................... 25 
6.2. 
Post Ablation Superficial Thromboembolic Events (PASTE) ................................... 25 
 
Page 64 of 101

 
LIST OF TABLES 
Table 1: 
Measurement Locations to Determine Treatment Section Diameter ........................... 9 
Table 2: 
Target STS Volume (mL) per Treatment Procedure .................................................. 13 
Table 3: 
Initial Positioning of The ClariVein Catheter and Dispersion Wire .......................... 16 
Table 4: 
Characterization of Post-Ablation Superficial Thrombus Extension (PASTE) ......... 26 
 
 
LIST OF FIGURES 
Figure 1: 
Catheter Assembly ..................................................................................................... 14 
Figure 2: 
Motor Drive Unit ........................................................................................................ 15 
Figure 3: 
Catheter Assembly with Check Valve and Syringe ................................................... 15 
Figure 4: 
Connected catheter Assembly with MDU .................................................................. 17 
Figure 5: 
Re-sheathing of Dispersion Tip ................................................................................. 20 
Figure 6: 
Fully Assembled ClariVein Device ........................................................................... 20 
 
 
Page 65 of 101

1. 
INTRODUCTION  
This VICARES Clinical Study Procedure Manual is an adjunct to the VICARES™ clinical study 
protocol CL-001. 
1.1. 
 VICARES CLINICAL STUDY OVERVIEW 
The VICARES is prospective, randomized, controlled, multi-center, double blind study of the 
ClariVein RES for treatment of venous insufficiency associate with incompetent saphenous veins 
due to superficial venous reflux in adults.    
• The VICARES clinical study is limited to the treatment of one incompetent saphenous 
vein per treatment procedure.  
• Ancillary procedures will not be allowed per protocol until after completion of the 
Week 12 post treatment follow-up visit.  
Carefully read and understand the VICARES clinical study protocol CL-001, Investigator 
Brochure, and this Procedure Manual.   
Please contact the Sponsor or designated representative with any questions regarding the study 
protocol, the study product, or any study related matter.  
 
Page 66 of 101

2. 
STUDY PRODUCT AND CLINICAL SUPPLIES 
2.1. 
Clinical Study Product 
The study product, ClariVein RES, consists of STS solution and the ClariVein infusion delivery 
system.  Both STS and ClariVein will carry a label specifying: “Caution: Limited by Federal (or 
United States Law) to Investigational Use Only”.  
2.1.1. 
STS Solution 
STS will be provided as blinded supplies of STS solution (1% or 3%) in 2 mL ampules, packaged 
in a carton of 5 ampules. Each carton will contain a total of 10 mL. 
2.1.2. 
ClariVein 
ClariVein infusion delivery system will not be blinded because it is not considered necessary to 
maintain integrity of the study. Except for length, all models are identical.  Physician will select 
catheter model based on individual patient anatomy. Supplies of ClariVein (45, 65, or 85 cm 
length model), packaged one per pouch in a shelf box of 5 pouches.  The pouch contains a 
covered tray holding: (1) Catheter assembly with check valve and Motor Drive Unit; and (1) 
syringe, 5 mL (for sclerosant). 
2.1.3. 
Other Clinical Supplies 
Commercially available, commonly used vascular procedural accessories will be provided to the 
investigational sites.  These supplies are not being evaluated in this clinical study; therefore, they 
will not be blinded and will not be labeled for investigational use.  Accessory products may 
include: 
(2) Pregnancy Kits  
Sterile Procedure Accessories 
(1) 
Vascular Access set with 0.018” guidewire and 5 Fr Introducer 
(1) 
Gauze Pad: 2” x 2”  
(1) 
Gauze Pad: 4” x 4”  
(1)  
1 inch 30 G needle 
(2)  
1.5 inch 21 G filter needles (to draw up saline, and sclerosant)  
Sterile Syringes: 
(1) 
3 mL syringe (for local anesthetic) 
(2) 
5 mL syringes (one for sclerosant, one for saline prime and flush) 
Other Supplies 
(1)   Normal Saline (USP 0.9%) 10 mL Vial 
(1)       Local Anesthetic (lidocaine 1%) 
(4) 
Writeable Syringe Labels  
(1) 
Sterile Marking Pen 
(2) 
Sterile Ultrasound Probe Cover   
Page 67 of 101

(3) 
Sterile Ultrasound Gel Packs  
(1) 
Measuring Tape (centimeter scale)  
(2) 
Antiseptic Swab Sticks (e.g., Chloraprep) 
Compression Hose – 20 to 30 mmHg (Class 2 compression, knee-high / open-toe). (A range of 
sizes will be supplied to each investigational site.)  
2.2. 
Storage and Dispensing of ClariVein® RES Product and Clinical 
Supplies  
Supplies are to be stored at a controlled room temperature [20°C to 25°C (68°F to 77°F)] in a 
secure, dry place where the access is limited to Study personnel only. Do not freeze. Maintain all 
supplies in the same packaging as was provided until ready to use. Review all labeling prior to 
use. All supplies will be dispensed and transferred to the procedure room using the clinical study 
site practice for dispensing of the clinical study material. Maintain accounting of all supplies.  
Page 68 of 101

3. 
SCREENING PERIOD [VISITS 1 AND 2 - SCREENING AND 
BASELINE] 
Refer to Schedule of Events as provided in the Study Protocol (CL-001). 
3.1. 
Ultrasound Imaging   
3.1.1. 
Imaging Format   
Ultrasound imaging to be recorded in Digital Imaging and Communications in Medicine 
(DICOM) format and labeled to the location.  
3.1.2. 
Ultrasound Equipment Required 
Color flow Doppler ultrasound equipment with high frequency linear array transducer. 
3.2. 
Visit 1 - Screening  
The Screening (Visit 1) ultrasound exam is to be performed to determine patient eligibility per the 
study Inclusion/Exclusion criteria. The Superficial Venous System and the Deep Venous System 
of both legs will be assessed for reflux and obstruction. To obtain optimal assessment of a 
patient’s venous system, prior to arriving at the clinic the patient should be hydrated and be 
mobile for at least 2 to 3 hours. At the clinic, the patient will be asked to stand or walk for 10-15 
minutes prior to the ultrasound imaging examination.  
3.2.1. 
Superficial Venous System 
Reflux Assessment - Perform with patient in the standing position. Perform and record 
assessment using color flow Doppler ultrasound with pulse wave tracing in the longitudinal view, 
after a manual calf compression and relaxation (or after Valsalva’s maneuver at the SFJ).   
Reflux in Superficial System - defined as retrograde flow >500ms (0.5s). 
Reflux - identify location using a pulse wave tracing on the target vein in the longitudinal view 
and measure duration 
Refluxing Section Length - measure length in centimeters in the longitudinal view: 2 cm below 
the SFJ for the GSV or ASV, or at the fascial curve for the SSV; i.e., from the deep vein junction, 
or highest point of reflux, to the end of the refluxing pathway of the saphenous vein.  
Refluxing Section Diameter -  measure diameter in millimeters in cross-section view.  Calculate 
average Treatment Section Diameter.  Refer to Table 1 for measurement locations. 
Page 69 of 101

 
Table 1: 
Measurement Locations to Determine Treatment Section Diameter  
GSV 
Greater Saphenous 
Vein 
ASV 
Accessory Saphenous 
Vein 
SSV 
Small Saphenous 
Vein 
SVS 
Saphenous Vein 
Segment 
1. Proximal Thigh  
(2 cm below SFJ) 
2. Mid-thigh 
3. Distal-thigh (Knee) 
 -------------------- 
1. Proximal Calf 
(Knee) 
2. Mid-calf 
3. Distal Calf at 
Lowest Point of 
Reflux 
1. Proximal Thigh  
(2 cm below SFJ) 
2. Mid-Treatment 
Section 
3. Distal-thigh (Knee) at 
Lowest Point of 
Reflux 
  
1. Proximal 
Termination or 
Junction 
2. Fascial Curve  
(Top of the fascial 
curve or where 
termination is 
located) 
3. Distal Calf at 
Lowest Point of 
Reflux  
1. Proximal portion  
(1 cm below highest 
point of the reflux 
within the segment) 
2. Midportion 
3. Distal portion at 
Lowest Point of 
Reflux 
Note: To determine the average TSD, measure the diameter at the initial position of the dispersion wire 
ball tip and the diameter midway between the position of the dispersion wire ball tip and the target 
access point. If a treatment section extends below the knee, take an additional measurement. Measure 
the diameter at the knee and carry out a three-point proximal GSV average TSD and a three-point distal 
GSV average TSD.  Use the corresponding TSL to determine STS volume. 
 
Obstruction Assessment - Perform with patient in the standing or supine position.  Perform and 
record assessment in longitudinal and cross-section view.  If obstruction or evidence of post-
thrombotic changes in the superficial veins are found, document the location. 
3.2.2. 
Deep Venous System 
Reflux and Obstruction of the Deep Venous System including the common femoral, deep 
femoral, femoral, popliteal and calf veins will be evaluated and documented.  
Reflux Assessment – Perform with patient in the standing position. Perform and record assessment 
using color flow Doppler ultrasound with pulse wave tracing in the longitudinal view, after a manual 
calf compression and relaxation (or after Valsalva’s maneuver at the SFJ). 
Reflux – identify location and determine if segmental, i.e., if reflux is located near the 
saphenofemoral and/or saphenopopliteal junctions alone. Reflux is defined as:  
• retrograde flow lasting >1.0s: common femoral, femoral and popliteal veins  
• retrograde flow lasting >0.5s: deep femoral and calf veins 
Page 70 of 101

Obstruction Assessment - Perform with patient in the standing or supine position. Perform and 
record assessment using longitudinal and cross-section view and record if obstruction is present. 
3.3. 
Visit 2 - Baseline  
The Baseline (Visit 2) ultrasound exam is to be performed to confirm patient’s eligibility per the 
study Inclusion/Exclusion criteria and collect baseline data. The ultrasound assessment will be 
limited to the target saphenous vein.  To obtain optimal assessment, prior to arriving at the clinic, 
the patient should be hydrated and be mobile for at least 2 to 3 hours. At the clinic, the patient and 
will be asked to stand or walk for 10-15 minutes prior to the ultrasound imaging examination.  
The physician will refer to vein mapping completed at the Screening (Visit 1); and perform 
focused ultrasound evaluation of the target saphenous vein.  
Reflux Assessment –  Perform with patient in the standing position. Perform and record 
assessment using color flow Doppler ultrasound with pulse wave tracing in the longitudinal view, 
after a manual calf compression and relaxation (or after Valsalva’s maneuver at the SFJ).   
Reflux in Superficial System - defined as retrograde flow >500ms (.05s). 
Reflux– identify location using a pulse wave tracing on the target vein in the longitudinal view.  
Refluxing Section Length - measure length in centimeters in the longitudinal view the deep vein 
junction, or highest point of reflux, to the end of the refluxing pathway of the saphenous vein.  
Refluxing Section Diameter - measure diameter in millimeters in cross-section view.  Calculate 
average Treatment Section Diameter.  Refer to Table 1. 
Obstruction Assessment – Perform with patient in the standing or supine position. Assess using 
longitudinal and cross-section view and record if obstruction is present. 
Page 71 of 101

4. 
TREATMENT PERIOD  
4.1. 
Visit 3 - DAY OF TREATMENT  
Refer to Schedule of Events as provided in the Study Protocol (CL-001). 
On the Day of Treatment (Visit 3) the physician is to perform a limited ultrasound scan of the 
target saphenous vein. To obtain optimal assessment, prior to arriving at the clinic, the patient 
should be well hydrated and be mobile for at least 2 to 3 hours. At the clinic, the patient and will 
be asked to stand or walk for 10-15 minutes prior to the ultrasound imaging examination. Prior to 
treatment, physician will reference Screening and Baseline vein mapping.   
Using B-mode Duplex ultrasound in cross-section view with patient in the standing position, 
physician will perform an ultrasound scan to confirm precise treatment section length and 
treatment section diameter.  These measurements will be used to determine STS volume for 
treatment procedure. 
Prior to treatment obtain a cross section image of the target access site.  Note vein diameter and 
location of access site relative to the knee.   Include the name of the vein.  The target access point 
is the lowest point of reflux.  Record actual access point. 
Confirm Treatment Section Length and Treatment Section Diameter.  These measurements will 
be used to determine STS volume for infusion. 
4.1.1. 
Patient Preparation 
Typical patient position during the treatment will depend on the vein treated; i.e., for GSV (Great 
Saphenous Vein) or ASV (Accessory Saphenous Vein) patient is supine, for SSV (Small 
Saphenous Vein) patient is prone.    
1. Use sterile technique per institutional protocol for endovenous procedures.  
2. Medicate the patient as appropriate. 
3. Prepare and drape the puncture site. 
4. Administer local anesthetic (1% lidocaine) at the access site as needed per medical 
protocol. 
5. A 5 F Introducer is provided in the accessory product supplies.  
4.1.2. 
Preparation of Investigational Product  
4.1.2.1. 
STS Solution Preparation 
The study drug, sodium tetradecyl sulfate (STS) is supplied in 2 mL ampules for single use. Each 
1% and 3% ampule contains: 
• 1% ampules, 20 mg/2 mL (10 mg/mL) 
Page 72 of 101

• 3% ampules, 60 mg/2 mL (30 mg/mL) 
The STS will be blinded and will be dispensed using a randomization procedure provided to each 
investigational site. Concentrations of 1% and 3% will be issued at a ratio of 1:1. Each ampule 
and carton carries a specific code for inventory accounting of the investigational drug at the 
ampule and carton level. The Investigator, Site Staff, and Patient will be blinded to the STS 
concentration. 
4.1.2.2. 
Use of Aseptic Technique  
Strict aseptic technique must be maintained while handling the study drug.  STS is a single-use, 
sterile, non-pyrogenic solution for parenteral use. STS ready-to-use solution is intended for 
intravenous infusion via ClariVein catheter. The STS solution does not require any additional 
preparation. The solution must NOT be diluted for use. Once an ampule is opened, it must be 
used only for that procedure; after the procedure, any unused portion of the ampule must be 
discarded.   
4.1.2.3. 
Withdrawal of STS from Ampules 
All parenteral drug products, including the study drug should be inspected visually for particulate 
matter and discoloration prior to use and administration. The STS is supplied as clear colorless 
solution.  
• Do not use if particulates, precipitation or discoloration is observed in the clinical drug 
supplies. Solutions that are discarded must be for accounted for during the disposition of the 
material. 
• STS inventory will be replenished as needed.  
• Site will report any product complaints to the study Sponsor or designee.  
• Maintain sterility of the STS sclerosant.  
• The outside surface of the glass ampule is non-sterile.  
• The sclerosant must be accessed with a sterile needle and syringe across the sterile field.  
• An assistant must hold the ampule while the sterile-gloved physician extracts the 
sclerosant with sterile needle and syringe. 
4.1.2.4. 
STS Volume per Treatment Procedure 
STS volume for administration has been calculated based on Treatment Section Length (TSL) and 
average Treatment Section Diameter (TSD) as presented in Table 2.  
The Investigator should consult this table for the target volume of STS solution, but may use 
his/her own discretion on volume per treatment procedure, provided that STS volume is not less 
than the minimum volume; and does not exceed a maximum of 10 mL for the single treatment 
procedure. 
 
Page 73 of 101

Table 2: 
Target STS Volume (mL) per Treatment Procedure  
 
Treatment Section Length (TSL) cm 
10 
15 
20 
25 
30 
35 
40 
45 
50 
55 
60 
65 
70 
75 
80 
85 
 Average Treatment 
Section Diameter 
 (TSD) mm 
4 
1 
2 
2 
3 
3 
4 
4 
5 
5 
6 
7 
7 
8 
8 
9 
9 
5 
1 
2 
3 
3 
4 
5 
6 
6 
7 
8 
8 
9 
10 
10 
10 
10 
6 
2 
3 
3 
4 
5 
6 
7 
8 
9 
9 
10 
10 
10 
10 
10 
10 
7 
2 
3 
4 
5 
6 
7 
8 
9 
10 
10 
10 
10 
10 
10 
10 
10 
8 
2 
4 
5 
6 
7 
8 
9 
10 
10 
10 
10 
10 
10 
10 
10 
10 
9 
3 
4 
5 
7 
8 
9 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
3 
4 
6 
7 
9 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
11 
3 
5 
7 
8 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
12 
4 
5 
7 
9 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
10 
4.1.3. 
ClariVein® Device Preparation  
The ClariVein is introduced through a micro introducer. Utilizing ultrasound vascular imaging, 
the Catheter Sheath with Dispersion Wire is navigated through the vasculature to the treatment 
site.  Fluid delivered through the Catheter Assembly’s Check Valve and Injection Port surrounds 
the Dispersion Wire and exits via an opening at the distal end of the catheter.    
The ClariVein catheter assembly, check valve, and motor drive unit must be connected prior to 
use; do not attempt to disassemble the ClariVein after use. It is fully disposable as a unit upon 
completion of the treatment procedure.     
Physician will select the ClariVein model based on patient anatomy; either a 45, 65 or 85 cm 
length model. 
Inspect the ClariVein package prior to opening. Do not use if package is opened or damaged. 
1. Use sterile technique to carefully remove the tray from the pouch and the contents from the 
try.  
2. Inspect all components of the ClariVein® to be certain there are no visible signs of damage 
(Figure 1). Do not use if contents are damaged. 
3. Remove Battery Terminal Insulator Tab from the Motor Drive Unit (Figure 2, Item 12). 
Check to see that the MDU has power by confirming the Green Indicator Light is illuminated 
(Figure 2, Item 13) and by engaging the Trigger momentarily (Figure 2, Item 10).  
4. Set the Dispersion Wire Tip speed to “H” using the Speed Selector (Figure 2, Item 8) on the 
MDU. The four speed positions are labeled as follows:  
   L –  low, 2,000 RPM  
M1 –  medium 2,500 RPM 
M2 –  medium high, 3,000 RPM 
  H –  high, 3,500 RPM 
Note: The Dispersion Wire will not rotate if Green Indicator Light (LED) does not illuminate. 
Page 74 of 101

5. Attach the Check Valve (Figure 3, Item 14) to the Injection Port (Figure 1, Item 2) on the 
Catheter Assembly by turning the Check Valve clockwise onto the Injection Port.   
6. Using a 10 mL sterile syringe, prime the Catheter Assembly with sterile normal saline USP 
0.9%, through the Check Valve and Injection Port checking to confirm connection is secure.  
Caution: If leak is detected, reconfirm connections of Syringe/Check Valve/Injection Port. 
Do not use product if leak continues. 
7. Use the 5 mL syringe provided within the ClariVein tray to infuse STS. Refer to Table 2 and 
determine the volume of STS for administration per patient.   
a. Portion the dose by halves or thirds of the total STS volume for administration, load 
the syringe with ≤ 4 mL at a time, and slowly administer small aliquots in sequence 
throughout the treatment section to facilitate even distribution of the STS.  
Figure 1: 
Catheter Assembly   
 
 
 
 
 
Page 75 of 101

Figure 2: 
Motor Drive Unit  
 
Figure 3: 
Catheter Assembly with Check Valve and Syringe  
 
 
4.1.4. 
Catheter Assembly Positioning 
1. Prior to joining the catheter assembly with the Motor Drive Unit (MDU), thread the 
ClariVein® Catheter Assembly through the access device and use ultrasound imaging 
guidance to confirm that the Catheter Tip (with the Dispersion Wire still within the 
sheath) is in the approximate desired location in the Treatment Section. 
Page 76 of 101

2. Once the Catheter Tip is in the approximate desired position (Table 3), join the Catheter 
Assembly and Motor Drive Unit. 
Table 3: 
Initial Positioning of The ClariVein Catheter and Dispersion Wire  
Target Vein 
Position within the Treatment Section 
Great Saphenous (GSV) and 
Accessory Saphenous Vein (ASV) 
Position dispersion wire ball tip 2 cm below the saphnofemoral 
junction (SFJ) and the superficial epigastric vein (SEV). 
Small Saphenous Vein (SSV) 
Position dispersion wire ball tip at the top of the fascial curve. 
This is usually 2.5 to 3 cm from the saphenopopliteal (SPJ) 
junction if the SPJ exists.  
Saphenous Vein Segment (SVS) 
Position dispersion wire ball tip at the highest point of reflux 
within the segment. 
 
NOTE: If using a second access point to complete infusion through the entire Treatment Section, 
move the Catheter Assembly only after resheathing the dispersion wire, i.e., move the Catheter 
Assembly to Position 1.  
4.1.4.1. 
Catheter Sheath Marking   
The ClariVein® has markings on the catheter to aid in location.  
A single black ‘hash’ mark denotes 1 cm increments. 
A double black ‘hash’ mark denotes 10 cm increments.  
A single white ‘hash’ mark denotes approximately 8 cm from the Dispersion Wire Tip when 
the Dispersion Wire is unsheathed.  
4.1.4.2. 
Joining Catheter Assembly to The Motor Drive Unit 
1. While carefully maintaining position of the Dispersion Wire Tip within the Treatment 
Section, hold the Guide Wing (Figure 1, Item 3) and advance the MDU onto the Catheter 
Assembly’s Cartridge for initial mating in the Alignment Channel Position 1 (Figure 2, 
Item 7).  Ensure the orientation of the MDU is in straight alignment with the Catheter 
Assembly. Exercise care not to bend or kink the proximal end of the Catheter Sheath. 
NOTE: Once joined, the Catheter Assembly is not removable from the MDU. 
2. To expose the Dispersion Wire Tip, advance the MDU to secure the Guide Wing into the 
Mating Alignment Channel Position 2, by holding the Guide Wing and rotating the MDU 
slightly to the left. (Figure 4). 
NOTE: The electrical circuit is now activated and the Dispersion Wire Tip is now unsheathed. 
1. Connect the Syringe to the check valve connected to the Injection Port.  
2. Snap the syringe into the syringe locking support. (Figure 2, item 9). 
Page 77 of 101

3. Ensure the syringe is fully engaged in the syringe locking support. 
4.1.4.3. 
Immediately Prior to Treatment 
1. Using ultrasound imaging guidance, confirm that the dispersion wire tip is in the desired 
position. Adjust as needed and reposition if necessary as described in Table 3 above. 
Figure 4: 
Connected catheter Assembly with MDU  
 
 
 
4.1.4.4. 
Activating the Rotatable Dispersion Wire 
1. Prior to activating rotation of the dispersion wire confirm the: 
a. position of the dispersion wire tip within the Treatment Section utilizing ultrasound 
imaging guidance 
b. dispersion tip is not within the vascular access device 
c. speed selection is at 3500 RPM 
d. patient is informed they will feel a slight vibration along the treated vein. 
2. Activate rotation of the dispersion wire by depressing the trigger.  
 
Caution:  Only activate rotation of the dispersion wire while simultaneously slowly withdrawing 
(pulling back) the catheter assembly.  
3. During the first 1 cm of pull back, activate the dispersion wire rotation, but do not infuse 
any fluid. For the remainder of the procedure, pull back with simultaneous dispersion 
wire rotation and infusion of fluid.  
4. After the first 1 cm of pull back with wire rotation alone (without infusion of any fluid), 
slowly withdraw the device through the treatment area while simultaneously infusing the 
STS.   
a. The procedure is carried out using both hands moving simultaneously.  
Page 78 of 101

b. Depress the syringe plunger with the thumb of the same hand that is holding the MDU 
(Figure 6).  
c. Perform a controlled pull back (withdrawal) of approximately 6 – 7 sec / cm.  
d. While the Dispersion Wire is rotating, hold the MDU with one hand while using the 
other hand to gently grasp the catheter sheath between your thumb and index finger 
proximal to the access site; pull back slowly and smoothly with 2 hands ensuring the 
ClariVein® catheter sheath does not kink or become damaged. 
e. Ensure the orientation of the MDU is in straight alignment and pointed towards the 
Catheter Assembly. The catheter must be kept straight between the Access Site and the 
point being grasped by the physician. 
Note:  For veins with diameters ≥10 mm, slight compression with the ultrasound probe is 
recommended. If the patient feels any discomfort, compression should be abandoned.   
Caution:  Do not forcefully compress the vein at the location of the rotating (spinning) dispersion 
wire tip either manually or with an ultrasound probe during the procedure. It is not recommended 
to continuously follow the rotating (spinning) dispersion wire tip with the ultrasound probe. 
Doing so may result in the dispersion wire becoming ensnared with the vein, damage to the 
device, and/or cause patient discomfort.  
After approximately 10 cm of the Treatment Section has been infused with STS, stop wire 
rotation by releasing Trigger and stop STS infusion. Utilizing ultrasound, assess the 10 cm 
portion. 
• If venous spasm is present, continue with the procedure as planned by reactivating the 
dispersion wire rotation and resume infusing STS. 
• If the treated vein has not gone into spasm, resheath the dispersion wire into the 
catheter sheath by placing the Catheter Assembly in Position 1, then slowly advance 
the catheter to the proximal position in the Treatment Section and retreat that segment 
as appropriate. If the target volume of STS was less than 10 mL, the physician should 
deliver additional STS but not exceed the maximum dose of 10 mL. (See Table 2) 
Caution: To minimize potential damage to the device and/or patient injury: 
• Never advance the catheter when the Catheter Assembly is in Position 2; the Catheter 
Assembly must be in Position 1during advancement in the vein. 
• Never advance the dispersion wire when it is rotating – it must NOT be activated during 
advancement in the vein. 
• Do not create a bend with tension between the Catheter Assembly and the MDU.  
Note: If patient experiences discomfort during pull back, temporarily reduce speed of dispersion 
wire rotation. After pulling dispersion wire tip through sensitive area, resume High speed wire 
rotation.  
1. Evenly deliver sclerosant along the Treatment Section. 
Page 79 of 101

2. If resistance is encountered during pull back, see Pull back Resistance below.  
3. When approximately half of the treatment has been completed, slide the access sheath 
back over the catheter to the most proximal end of the Catheter Assembly.  
4. After emptying the syringe which contains the final amount of STS, flush the catheter with 
1 mL of sterile normal saline. (This accounts for the dead space within the catheter system 
and thus ensures delivery of the full target volume of STS.) 
5. When the single white hash mark on the catheter is visible, the dispersion wire tip is 8 cm 
from the access point. Be prepared to end fluid infusion after approximately 2 to 3 cm 
more pull back.  
6. When the procedure is finished and prior to catheter removal from the patient, re-sheath 
the Dispersion Tip and disable the MDU by the following: 
a. Unsnap the Syringe from the Syringe Locking Support on the MDU (Figure 5, Step 
1). 
b. Rotate the Catheter Assembly away from the Syringe Locking Support (Figure 5, 
Step 2). 
c. Push Guide Wing to its most distal position until it stops in Mating Alignment 
Channel Position 1 (Figure 5, Step 3). 
d. Continue to push to the most distal position until it stops (Figure 5, Step 4) 
Note: Placing Catheter Assembly in Mating Alignment Channel Position 1 so that the Dispersion 
Wire will not rotate when removing device from patient. The Catheter Assembly cannot be 
separated from the MDU. 
Remove the Catheter Assembly and access device as one unit from patient.  Hold pressure at the 
access site as in any endovenous procedure. Then, apply a bandage to the Access Site.  
4.1.4.5. 
Pull-back Resistance  
During pull back, venous anatomy may interfere with the free rotation of the Dispersion Wire Tip. 
The user may detect one or more of the following:  
• a change in the tone of the Motor Drive Unit indicating a reduction in Dispersion Wire 
rotation,  
• the patient may complain of discomfort, or  
• resistance to pull back.  
If any of these occur, immediately release the trigger to stop the Dispersion Wire rotation.  
While maintaining straight alignment of the catheter assembly, determine remedial action to be 
taken, including: 
• Hold the catheter with a thumb and index finger at the Access Site; then pull the 
catheter past the area of resistance.  
Page 80 of 101

• Move the Catheter Assembly to Position 1; then move back to Position 2 and repeat. 
• Move the Catheter Assembly to Position 1; then slowly rotate entire assembly 
clockwise up to 3 full rotations. 
After taking remedial action, confirm the Dispersion Wire can rotate freely by gently sliding the 
catheter about 2 to 3 mm back and forth within the vein. When the user is certain that the 
Dispersion Wire is free within the vein, ensure the Catheter Assembly is in Position 2; then 
resume the procedure. 
Figure 5: 
Re-sheathing of Dispersion Tip 
 
 
Figure 6: 
Fully Assembled ClariVein Device  
 
 
4.1.5. 
Steps After Completion of STS and Removal of ClariVein 
While the patient is on the procedure table, after completion of the STS delivery and removal of 
the ClariVein, the physician is to: 
Page 81 of 101

1. Have the patient to perform dorsiflexion / plantar flexion exercises (on the treated leg) at a 
moderate rate (approximately 10 times per minute for 2 or 3 minutes). 
2. Place a moderate pressure (20 to 30 mmHg, Class 2) knee high compression stocking on 
the treated leg; and instruct the patient to wear the compression stocking continuously for 
3 days (72 hours); then to wear the stocking only during the daytime for 2 weeks. 
After the patient is off the procedure table, the physician is to:  
1. Have the patient ambulate for 15 minutes, while still in the clinic. 
2. Observe the patient in the clinic for at least 30 minutes following treatment.   
The Investigator must be prepared to treat any allergic reaction to substances utilized 
during the treatment procedure, including anaphylactic reactions.  
Emergency resuscitation equipment must be immediately available in the event of 
anaphylactic reactions.  
4.1.6. 
Prior to Patient Discharge  
1. Instruct the patient to ambulate 15 minutes per hour for the next 8 hours or until bedtime, 
2. Instruct the patient to be hydrate throughout the remainder of the day,  
3. Collect patient information per Schedule of Events, and 
4. Review Schedule of Events for post-treatment follow-up with patient. 
4.1.7. 
Product Disposal Instructions 
4.1.7.1. 
Accountability of Investigational Product  
After use, quarantine the product and return it to the secure area where clinical study supplies are 
maintained for product accountability purpose. Once the accountability is completed by the 
sponsor representative and permission granted for disposal, the product should be disposed using 
the instructions  
4.1.7.2. 
Disposition of Investigational Product 
Upon approval by the sponsor representative for disposal, dispose of the products used in the 
procedure per institution’s procedures, taking note of the product specific instructions below and 
in accordance with hospital, administrative, and/or local government policy.  
Any unused portion of the opened glass ampules of STS solution, as well as any empty glass 
ampules must be disposed of immediately, discarded per your institution’s procedure.    The fully 
assembled ClariVein contains a 9V DC battery in the MDU, which is not intended for removal. 
As such, the entire ClariVein delivery system, including the MDU is considered an infected 
medical device and is fully disposable as medical/biohazard waste and is not intended to be 
Page 82 of 101

included in used electronic equipment recycling programs.  Discarded per your institution’s 
procedure.   
4.1.7.3. 
Inventory of Investigational Product 
All unused Study Product and Clinical Supplies must be maintained according to sponsor 
procedures and placed in a restricted area for return and/or destruction. 
  
Page 83 of 101

5. 
FOLLOW-UP PERIOD  
5.1. 
VISITS 4, 5, 6 - WEEKS 1, 6 AND 12 Post Treatment 
Refer to Schedule of Events as provided in the Study Protocol (CL-001). 
5.1.1. 
Ultrasound Imaging Post Treatment 
With patient in the standing position, assess the Treatment Section of the selected saphenous vein 
for complete closure utilizing 2D ultrasound imaging with compression (split screen view) of the 
Treatment Section with the ultrasound probe, using color flow Doppler to confirm patency or 
occlusion.  
5.1.1.1. 
Closure  
Closure of the Treatment Section of the Target Vein will be assessed as follows: 
1. Image the Treatment Section and record location and length of any open segments within 
the Treatment Section 
• GSV and ASV: 3 cm from the deep vein junction to the Access Point  
• SSV: 1 cm below the fascial curve to the Access Point   
• SVS: 1 cm below highest point of refluxing segment to the Access Point   
2. Open segments >5 cm in length will be evaluated for reflux.  
3. Indicate by notation and color coding the presence or absence of reflux. 
5.1.2. 
Competence 
Competence of the Treatment Section of the Target Vein will be assessed as follows: 
1. Sweep along the entire Treatment Section of the Target Vein, using the ultrasound probe 
to compress the vein while imaging in cross-section.  
2. In any compressible areas, switch to a longitudinal view; and document presence or 
absence of color flow in any compressible areas. If color flow is present, evaluate for 
reflux.  
3. For this clinical study, reflux is defined as retrograde flow > 500ms (0.5s).  
4. Screen for reflux utilizing color flow Doppler ultrasound, after a manual calf compression 
and relaxation (or after Valsalva’s maneuver if evaluating the SFJ).  
5. Assess for reflux in the longitudinal view with the patient in the standing position.   
6. If reflux is present, utilizing Doppler ultrasound to document duration of reflux in each 
segment  
Page 84 of 101

5.1.3. 
Treatment Outcome 
5.1.3.1. 
Success  
Defined as Elimination of Saphenous Vein Reflux is defined as target vein closure and/or vein 
competency demonstrated by duplex ultrasound (color flow) at Week 12 post-treatment.  
Vein Closure is defined as no discrete open segment of vein > 5 cm in length within the 
Treatment Section of the selected saphenous vein as assessed by duplex ultrasound. 
Vein Competency is defined as absence of retrograde flow >500ms (0.5s) within the 
Treatment Section of the selected saphenous vein as assessed by duplex ultrasound. 
5.1.3.2. 
Failure  
Defined as the presence of retrograde flow >500ms in any discrete open vein segment >5cm 
within the Treatment Section of the saphenous vein; and a failure will be categorized as:  
“complete” when the entire vein Treatment Section shows flow; and  
“segmental” when there is at least discrete segment >5 cm in length within the vein Treatment 
Section shows retrograde flow. 
 
Page 85 of 101

6. 
MONITORING OF SELECTED VASCULAR SAFETY EVENTS 
6.1. 
Identification and Description of Thromboembolic Events 
1. Measure “stump length”, i.e., the distance from the junction to the first point of venous 
closure. Record image in long view of the junction indicating the “stump length”.   
2. Record cross section images including junction with deep vein (split screen view with and 
without compression of the vein).  
3. The study will use a two-point technique for assessing Deep Vein Thrombosis (DVT) in 
the common femoral, superficial femoral, and popliteal veins.  
4. The study will also evaluate and record PASTE into the deep venous system. If PASTE is 
present categorize per Table 4. 
Deep Venous System - The deep venous system will be evaluated to exclude deep vein 
thrombosis (DVT) using a two-point technique for assessing Deep Vein Thrombosis (DVT) in the 
common femoral, superficial femoral, and popliteal veins. The treated vein junction will also be 
evaluated for PASTE. 
Evaluation for the presence of DVT and PASTE will be performed (in supine position) and 
images stored using the following protocol while scanning from the CFV to the calf veins: 
• Evaluate above veins in B-mode; and in presence of PASTE in color flow mode 
• Compress proximal, mid, and distal part of each vein segment. Record images in 
cross-section view using B-mode (split screen) with and without compression 
• Evaluate above vein segments with color flow with distal augmentation 
6.2. 
Post Ablation Superficial Thromboembolic Events (PASTE) 
With patient in the supine position, clinician will carefully evaluate the SFJ and SPJ to look for 
post-ablation superficial thrombus extension from the GSV, ASV and SSV into the deep venous 
system.  
• If post-ablation superficial thrombus extension is present, measurement and evaluation 
will be done with patient in the reverse Trendelenburg or standing position; and images 
stored. 
• Characterization of the length of any post-ablation superficial thrombus extending into the 
deep venous system and the percentage of deep vein diameter that is affected will be 
assessed utilizing Table 4. 
 
Page 86 of 101

Table 4: 
Characterization of Post-Ablation Superficial Thrombus Extension (PASTE) 
Type 
Description 
Action 
Type 1 
Confined to the junction (SFJ or SPJ), not extending 
into the deep vein system. 
Treatment not required 
Type 2 
Past the junction (SFJ or SPJ,) extending into the deep 
vein system and occupying less than 50% of the deep 
vein cross sectional area. 
Treatment could be required, if 
the patient is high risk, e.g. 
history of DVT. 
Type 3 
Into the deep venous system and occupying greater 
than 50% of the deep vein cross sectional area. 
Treatable   
Follow institutional protocol. 
Type 4 
Into the deep system, fully across the diameter of the 
deep vein (e.g., at the SFJ or SPJ). 
Treatable   
Follow institutional protocol. 
 
 
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