A Phase 2, Multicenter, Randomized, Double-blind, Placebo-controlled Study to Assess the Efficacy, Safety, and Tolerability of AVP-786 (Deudextromethorphan Hydrobromide [d6-DM]/Quinidine Sulfate [Q]) for the Treatment of Intermittent Explosive Disorder (IED)
Phase: PHASE2
Conditions: Intermittent Explosive Disorder
Sponsor: Otsuka Pharmaceutical Development & Commercialization, Inc.



AVANIR Pharmaceuticals 
Protocol 17-AVP-786-206 
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Version 1.2 
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TABLE OF CONTENTS 
LIST OF ABBREVIATIONS ..........................................................................................................6 
PROTOCOL AGREEMENT ...........................................................................................................8 
STUDY SYNOPSIS ........................................................................................................................9 
1. 
BACKGROUND AND CLINICAL RATIONALE ...................................................16 
1.1. 
Intermittent Explosive Disorder .................................................................................16 
1.2. 
Rationale for Studying AVP-786 in Patients with IED ..............................................16 
1.3. 
Rationale for the AVP-786 Dose ................................................................................18 
1.4. 
Rationale for the Treatment Duration .........................................................................18 
2. 
STUDY OBJECTIVES ..............................................................................................19 
3. 
STUDY DESIGN .......................................................................................................20 
4. 
STUDY POPULATION .............................................................................................22 
4.1. 
Inclusion Criteria ........................................................................................................22 
4.2. 
Exclusion Criteria .......................................................................................................22 
4.3. 
Patient Withdrawal from the Study ............................................................................24 
5. 
STUDY TREATMENTS............................................................................................26 
5.1. 
Treatments Administered ............................................................................................26 
5.1.1. 
Description of Study Medication ................................................................................26 
5.1.2. 
Composition of AVP-786 ...........................................................................................26 
5.1.3. 
Packaging ....................................................................................................................26 
5.1.4. 
Labeling ......................................................................................................................27 
5.1.5. 
Storage of Clinical Supplies .......................................................................................28 
5.1.6. 
Study Medication Administration...............................................................................28 
5.2. 
Accountability of Study Supplies ...............................................................................28 
5.2.1. 
Receipt of Supplies .....................................................................................................28 
5.2.2. 
Record of Dispensing .................................................................................................28 
5.2.3. 
Unused Supplies .........................................................................................................29 
5.3. 
Methods of Assigning Patients to Treatment Groups .................................................29 
5.3.1. 
Randomization ............................................................................................................29 
5.3.2. 
Blinding/Masking .......................................................................................................29 
5.4. 
Study Drug Compliance .............................................................................................29 

 
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5.5. 
Concomitant Medications ...........................................................................................30 
5.5.1. 
Allowed Concomitant Medications ............................................................................30 
5.5.2. 
Prohibited Concomitant Medications and Nondrug Therapies ..................................30 
6. 
STUDY ASSESSMENTS AND PROCEDURES ......................................................31 
6.1. 
Screening Assessments ...............................................................................................31 
6.2. 
Efficacy Assessments .................................................................................................32 
6.2.1. 
Overt Aggression Scale - Modified (OAS-M) ............................................................32 
6.2.2. 
6.2.3. 
Modified Clinical Global Impression (CGI) Scales ...................................................33 
6.2.4. 
Modified Patient Global Impression of Severity for IED (mPGI-S) ..........................34 
6.2.5. 
Modified Patient Global Impression of Change for IED (mPGI-C) ...........................34 
6.2.6. 
Sheehan Disability Scale (SDS) .................................................................................35 
6.2.7. 
Short-Form 12-Item Health Survey (SF-12) ...............................................................35 
6.2.8. 
State-Trait Anger Expression Inventory-2 (STAXI-2) ...............................................35 
6.3. 
Pharmacokinetics ........................................................................................................36 
6.5. 
Safety Assessments .....................................................................................................36 
6.5.1. 
Adverse Events ...........................................................................................................36 
6.5.2. 
Physical and Neurological Examinations ...................................................................39 
6.5.3. 
Vital Signs Measurements ..........................................................................................39 
6.5.4. 
Clinical Laboratory Tests ...........................................................................................39 
6.5.5. 
Pregnancy Tests ..........................................................................................................40 
6.5.6. 
Electrocardiograms .....................................................................................................40 
6.5.7. 
Sheehan Suicidality Tracking Scale (S-STS) .............................................................41 
6.6. 
Schedule of Evaluations and Procedures ....................................................................41 
6.6.1. 
Description of Study Procedures ................................................................................41 
7. 
DATA MANAGEMENT ...........................................................................................50 
7.1. 
Data Collection ...........................................................................................................50 
7.2. 
Electronic Clinical Outcomes Assessment Data .........................................................50 
8. 
STATISTICAL METHODS .......................................................................................52 
8.1. 
Analysis Populations ..................................................................................................52 

 
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8.2. 
Demographic and Baseline Characteristics ................................................................52 
8.3. 
Efficacy Analysis ........................................................................................................52 
8.3.1. 
Study Endpoints ..........................................................................................................52 
8.3.2. 
Primary Efficacy Analysis ..........................................................................................53 
8.3.3. 
Secondary Efficacy Analyses .....................................................................................53 
8.4. 
Pharmacokinetic Analysis ..........................................................................................53 
8.6. 
Safety Analysis ...........................................................................................................53 
8.6.1. 
Adverse Events ...........................................................................................................54 
8.6.2. 
Vital Signs and Electrocardiograms ...........................................................................54 
8.6.3. 
Clinical Laboratory Values .........................................................................................54 
8.7. 
Data and Safety Monitoring Board .............................................................................54 
8.8. 
Interim Analysis ..........................................................................................................54 
8.9. 
Sample Size Calculation .............................................................................................54 
9. 
ADMINISTRATIVE PROCEDURES .......................................................................56 
9.1. 
Institutional Review Board Approval .........................................................................56 
9.2. 
Informed Consent Form ..............................................................................................56 
9.3. 
Study Drug Diary ........................................................................................................56 
9.4. 
Electronic Case Report Forms ....................................................................................56 
9.5. 
Quality Assurance .......................................................................................................57 
9.5.1. 
Documentation ............................................................................................................57 
9.5.2. 
Monitoring ..................................................................................................................57 
9.6. 
Record Retention ........................................................................................................57 
9.7. 
Source Data .................................................................................................................58 
9.8. 
Data Handling .............................................................................................................58 
9.9. 
Guidelines for Good Clinical Practice ........................................................................58 
9.10. 
Conditions for Amending the Protocol .......................................................................58 
9.11. 
Conditions for Terminating the Study ........................................................................58 
9.12. 
Confidentiality of Study Documents and Patient Records .........................................59 
9.13. 
Publications .................................................................................................................59 
9.14. 
Audits/Inspections ......................................................................................................59 

 
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10. 
REFERENCES ...........................................................................................................60 
11. 
APPENDICES ............................................................................................................62 
 
LIST OF TABLES 
Table 1: 
Schedule of Evaluations and Visits (17-AVP-786-206) .............................................13 
Table 2: 
Composition of Investigational Product (17-AVP-786-206) .....................................26 
 
LIST OF FIGURES 
Figure 1: 
Sample Configuration of Study Medication Blister Card (17-AVP-786-206) ...........27 
 

 
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LIST OF ABBREVIATIONS 
Abbreviation 
Definition 
5-HT 
Serotonin 
AE 
Adverse event 
BID 
Twice daily 
CD-ROM 
Compact disc read-only-memory 
CFR 
Code of Federal Regulations 
CRO 
Contract research organization 
CTSdatabase 
Clinical Trial Subject Database 
d6-DM 
Deudextromethorphan hydrobromide (or free base form) 
DM 
Dextromethorphan hydrobromide or dextromethorphan  
DMP 
Data management plan 
DSM-5 
Diagnostic and Statistical Manual of Mental Disorders, 5th Edition 
DSMB 
Data and Safety Monitoring Board 
eCOA 
Electronic clinical outcome assessments 
ECG 
Electrocardiogram 
eCRF 
Electronic case report form 
EDC 
Electronic data capture 
FDA 
US Food and Drug Administration 
FDG 
Fluorodeoxyglucose 
GCP 
Good Clinical Practice 
GMP 
Good Manufacturing Practice 
HbA1c 
Glycosylated hemoglobin  
ICF 
Informed consent form 
ICH 
International Council on Harmonisation 
IED 
Intermittent Explosive Disorder 
IRB 
Institutional Review Board 
IWRS 
Interactive Web Response System 
MAOI 
Monoamine oxidase inhibitor 
mCGI-C 
Modified Clinical Global Impression of Change for IED 
mCGI-S 
Modified Clinical Global Impression of Severity for IED 
MedDRA 
Medical Dictionary for Regulatory Activities 

 
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Abbreviation 
Definition 
mITT 
Modified intent-to-treat 
mPGI-C 
Modified Patient Global Impression of Change for IED 
mPGI-S 
Modified Patient Global Impression of Severity for IED 
MMRM 
Mixed effects model repeated measures 
NMDA 
N-methyl-D-aspartate 
OAS-M 
Overt Aggression Scale – Modified for Outpatient Use 
OTC 
Over-the-counter 
PET 
Positron emission tomography 
PHQ-9 
Patient Health Questionnaire-9 
PP 
Per-protocol  
Q 
Quinidine sulfate or quinidine 
QTc 
QT interval corrected for heart rate 
QTcF 
QT interval corrected for heart rate using the Fridericia’s formula 
SAE 
Serious adverse event 
SAP 
Statistical analysis plan 
SCID-5-CT 
Structured Clinical Interview for DSM-5, Clinical Trials Version 
SDS 
Sheehan Disability Scale 
SF-12 
Short-Form 12-Item Health Survey 
SNRI 
Serotonin-norepinephrine reuptake inhibitor 
SOC 
System organ class 
SSRI 
Selective serotonin reuptake inhibitor 
S-STS 
Sheehan Suicidality Tracking Scale 
STAXI-2 
State-Trait Anger Expression Inventory-2 
T3 
Triiodothyronine 
T4 
Thyroxine 
TEAE 
Treatment-emergent adverse event 
TSH 
Thyroid-stimulating hormone 
UDS 
Urine drug screen 
US 
United States 

 
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Version 1.2 
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PROTOCOL AGREEMENT 
Protocol Title:  
A Phase 2, multicenter, randomized, double-blind, placebo-controlled study to assess the 
efficacy, safety, and tolerability of AVP-786 (deudextromethorphan hydrobromide 
[d6-DM]/quinidine sulfate [Q]) for the treatment of Intermittent Explosive Disorder (IED) 
Protocol Number: 17-AVP-786-206 
This document is a confidential communication of Avanir Pharmaceuticals. The recipient agrees 
that no unpublished information contained within this document or protocol will be disclosed or 
published without prior consent and written approval from Avanir. An exception to this 
agreement may be made for the purposes of ethical or regulatory review, in which case this 
document may be disclosed to an Ethics Review Board or any authorized representative of a 
national authority as required by regulation. 
The signatures of the principal investigator and representative of the sponsor below constitute 
their approval of this protocol and further provide the necessary assurances that: 
1. This study will be conducted according to Good Clinical Practice (GCP) and to all 
stipulations, as specified in both clinical and administrative sections of the protocol 
including the Declaration of Helsinki. 
2. The conduct and results of this study will be kept confidential, and the electronic case 
report forms (eCRFs) and other pertinent data will become the property of Avanir 
Pharmaceuticals. 
3. The protocol contains all necessary information required to conduct the study, as outlined 
in the protocol, and that the study will not be initiated without the approval of an 
appropriate Institutional Review Board (IRB). 
4. All participants in this study will provide written informed consent in accordance with 
the requirements specified in the Code of Federal Regulations (21 CFR Parts 50, 56, 312) 
and/or the Declaration of Helsinki. All participants will also be informed that their 
medical records will be kept confidential except for review by Avanir or its 
representatives, the US Food and Drug Administration (FDA), or other regulatory 
agencies if applicable. 
 
 
 
Principal Investigator Signature 
 
Date 
Principal Investigator Name: ___________________________________________ 
 
 
 
 
Avanir Representative Signature 
 
Date 
Avanir Representative: 
 

 
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STUDY SYNOPSIS 
Title: A Phase 2, multicenter, randomized, double-blind, placebo-controlled study to assess the 
efficacy, safety, and tolerability of AVP-786 (deudextromethorphan hydrobromide 
[d6-DM]/quinidine sulfate [Q]) for the treatment of Intermittent Explosive Disorder (IED) 
Study Objectives 
The objectives of the study are to evaluate the efficacy, safety, and tolerability of AVP-786 
compared to placebo, for the treatment of IED. 
Study Population 
Number of Patients: Approximately 150 patients will be randomized at approximately 20 centers 
in the United States. 
Condition/Disease: Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) 
criteria for IED. 
Key Inclusion Criteria: Diagnosis of current IED according to the DSM-5 criteria, as solicited by 
the Structured Clinical Interview for DSM-5, Clinical Trials Version (SCID-5-CT). Patients must 
have at least 3 IED days (at least 1 IED episode each day, as recorded by the patient using the 
) per week for the 2 consecutive weeks directly preceding baseline with 70% 
compliance during that time frame, as assessed by the investigator. Patients must have a score 
≥ 12 on the Life History of Aggression scale at screening, a score ≥ 6 on the Overt Aggression 
Scale – Modified (OAS-M) Total Irritability at screening and baseline, and a score ≥ 4 on the 
modified Clinical Global Impression of Severity for IED (mCGI-S) at screening and baseline. 
Key Exclusion Criteria: Patients with a diagnosis of major depressive disorder within 6 months 
of screening, patients with significant symptoms of a depressive disorder or with a Patient Health 
Questionnaire-9 (PHQ-9) score ≥ 10 at screening, and patients who meet only the DSM-5 A2 
criterion for IED will be excluded. Patients with a lifetime history of schizophrenia, 
schizoaffective disorder, bipolar disorder, antisocial personality disorder, neurocognitive 
disorder, or mental retardation (DSM-5 criteria) will be excluded; patients with recurrent IED 
episodes that are better explained by another mental disorder or attributable to another medical 
condition (e.g., head trauma, Alzheimer’s disease) or to the physiological effect of a substance 
(e.g., a drug of abuse, a medication) will be excluded (DSM-5 criteria). 
A complete list of inclusion/exclusion criteria is presented in Section 4 of the protocol. 
Study Design 
Structure: This is a Phase 2, multicenter, randomized, double-blind, placebo-controlled parallel 
design study with 2 treatment groups (AVP-786 and placebo).  
Duration: Randomized patients will participate in the study for approximately 17 weeks, with a 
screening period up to 4 weeks and a 12-week double-blind treatment period. All patients will 
receive a safety follow-up telephone contact 7 days after the last dose of study drug. 
Study Treatment: The investigational product is AVP-786 (deudextromethorphan hydrobromide 
[d6-DM]/quinidine sulfate [Q]) capsules. Dosing will start with d6-DM 28 mg/Q 4.9 mg (AVP-

 
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786-28/4.9) that will be titrated over a 2-week period to d6-DM 42.63 mg/Q 4.9 mg (AVP-786-
42.63/4.9) twice daily (BID). 
Control: Placebo capsules appearing identical to AVP-786 will be used as the control. 
Randomization: Eligible patients will be randomized on Day 1 to receive AVP-786 or placebo 
(1:1 ratio stratified by study site) for 12 weeks. 
Dose Regimen: Patients randomized to receive AVP-786 will be titrated up to a dose of AVP-
786-42.63/4.9 BID by Day 15. On Day 1 after all predose assessments have been completed, the 
first dose of study drug will be ingested in the clinic, in the presence of study site personnel. 
Beginning on Day 1, patients randomized to AVP-786 will ingest a dose of AVP-786-28/4.9 and 
a dose of placebo for 7 days. Beginning on Day 8, patients will ingest a dose of AVP-786-28/4.9 
capsules BID for 7 days, and beginning on Day 15, patients will ingest a dose of AVP-786-
42.63/4.9 BID for the remaining 10 weeks of treatment. If the patient cannot tolerate AVP-786-
42.63/4.9 BID, a one-time down titration to AVP-786-28/4.9 BID will be allowed between 
Days 16 and 43; these patients will remain at the AVP-786-28/4.9 BID dose for the remainder of 
the study. 
Patients randomized to receive placebo will ingest placebo BID for 12 weeks.  
Patients requiring a dose-adjustment between Days 16 and 43 will return to the study site for an 
unscheduled visit to perform safety assessments.  
The patient should ingest study drug orally BID with water, 1 capsule in the morning and 
1 capsule in the evening approximately 12 (± 4) hours apart. The time of dosing should be 
consistent throughout the study and must be recorded on the study drug diary. 
Assessments and Visits  
Patients will attend clinic visits at screening, baseline (Day 1), and Days 15 (Week 2), 
29 (Week 4), 43 (Week 6), 57 (Week 8), 71 (Week 10), and 85 (Week 12). On Day 8 (Week 1), 
a safety telephone contact will be performed to assess adverse events (AEs) and query regarding 
concomitant medications. A safety follow-up telephone contact, to assess AEs, will be performed 
7 days after the last dose of study drug. 
During screening and double-blind treatment, patients will record information regarding their 
IED episodes using the 
. 
Study procedures will be performed at each visit as outlined in the Schedule of Evaluations and 
Visits (Table 1).  
Response Measures 
Primary Efficacy Measure: OAS-M - Total Aggression 
Secondary Efficacy Measures: 
• OAS-M - Total Irritability 
• OAS-M - individual items for Aggression and Irritability 
• 
 – IED days, IED episodes, IED severity, and patient’s distress 

 
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• IED days - investigator assessment 
• OAS-M - number of discrete IED episodes 
• Modified Clinical Global Impression of Severity for IED (mCGI-S) 
• Modified Clinical Global Impression of Change for IED (mCGI-C) 
• Modified Patient Global Impression of Severity for IED (mPGI-S) 
• Modified Patient Global Impression of Change for IED (mPGI-C) 
• Sheehan Disability Scale (SDS)  
• Short-Form 12-Item Health Survey (SF-12) 
• State-Trait Anger Expression Inventory-2 (STAXI-2) 
Safety and Tolerability 
Safety and tolerability of AVP-786 will be assessed by reported AEs, physical and neurological 
examinations, vital signs including orthostatic measurements, clinical laboratory assessments 
(chemistry, hematology and urinalysis), resting 12-lead electrocardiograms (ECGs), concomitant 
medications, and the Sheehan-Suicidality Tracking Scale (S-STS). Pregnancy tests will be 
conducted for females of childbearing potential only.  
Pharmacokinetics 
 
Plasma concentrations of d6-DM, Q, and certain metabolites will be measured; 
 
 
General Statistical Methods and Types of Analyses 
Analysis Populations 
Three analysis populations will be evaluated including the modified intent-to-treat (mITT), per-
protocol (PP), and safety populations.  
mITT – The mITT population will include all patients who ingest at least 1 dose of study 
medication and have at least 1 postbaseline primary efficacy assessment; this population will be 
used for all efficacy analyses. Patients in the mITT population will be included in the treatment 
group to which they were randomized regardless of the treatment received.  
PP – The PP population will include all patients with no significant protocol deviation that may 
impact the efficacy evaluations. Patients in the PP population will be included in the treatment 
group based on the actual treatment received.  
Safety – The safety population part of the safety analyses will include all patients who ingest 
study medication. Patients in the safety population will be included in the treatment group based 
on the actual treatment received and all the safety measures will be analyzed and summarized by 
treatment group. 

 
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Efficacy Analysis 
The primary efficacy endpoint of the study is the change from baseline to Week 12 in the OAS-
M Total Aggression score. The treatment effect will be analyzed using a likelihood-based linear 
mixed effects model repeated measures (MMRM) on observed data. The model will include 
fixed effects for treatment, visit, treatment-by-visit interaction, baseline-by-visit interaction, and 
baseline value. The OAS-M Total Aggression scores are highly skewed and, in general, not 
normally-distributed; a log-transformation will be applied first before using the MMRM. The 
analysis on the original scale will be the sensitivity analysis. Detailed analyses will be specified 
in the statistical analysis plan prior to unblinding the study. 
The secondary efficacy endpoints will be the change from baseline to Week 12, and will be 
analyzed in a similar manner to the primary endpoint or as appropriate.  
Sample Size Calculation 
Sample size calculation was performed based on the results of a 12-week study of fluoxetine vs. 
placebo in patients with IED.1 The observed OAS-M aggression score effect size was 
approximate 0.45 taking into account a 45% discontinuation rate. For the current study, the 
planned sample size of 150 patients (75 per group) will have approximately 80% power to detect 
a treatment effect size of 0.45 in the comparison of AVP-786 vs. placebo with a 2-sided type I 
error α=0.05. If the effect size is assumed to be 0.50, the power is approximately 85%. 
 

 
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Procedure 
Visit: 
Screening1 
Baseline 
Phone 
Call1,2 
Visit 21 
Visit 31 
Visit 41 
Visit 51 
Visit 61 
Visit 7/ET1,3,
4 
Study Day: 
Day -28 to -1 
Day 1 
Day 8 
Day 15 
Day 29 
Day 43 
Day 57 
Day 71 
Day 85 
End of Study Week: Week -4 to -1 
 
Week 1 
Week 2 
Week 4 
Week 6 
Week 8 
Week 10 
Week 12 
Clinical laboratory tests 
X9 
 
 
 
 
 
X 
 
X9 
Pregnancy test10 
X 
X 
 
X 
X 
X 
X 
X 
X 
Urine drug screen 
X 
X 
 
 
X 
 
X 
 
X 
Pharmacokinetic blood sample 
 
 
 
 
 
 
X11 
 
X11 
Adverse events 
 
X 
X 
X 
X 
X 
X 
X 
X 
Prior and concomitant 
medications, and nondrug 
therapies 
X 
X 
X 
X 
X 
X 
X 
X 
X 
S-STS 
X 
X 
 
X 
X 
X 
X 
X 
X 
OAS-M  
X 
X 
 
X 
X 
X 
X 
X 
X 
Review of 
 IED 
days - investigator assessment 
 
X 
 
X 
X 
X 
X 
X 
X 
mCGI-S 
X 
X 
 
 
 
X 
 
 
X 
mCGI-C 
 
 
 
 
 
X 
 
 
X 
mPGI-S 
 
X 
 
 
 
X 
 
 
X 
mPGI-C 
 
 
 
 
 
X 
 
 
X 
SDS 
 
X 
 
 
 
X 
 
 
X 
SF-12 
 
X 
 
 
 
X 
 
 
X 
STAXI-2 
 
X 
 
 
 
X 
 
 
X 

 
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Procedure 
Visit: 
Screening1 
Baseline 
Phone 
Call1,2 
Visit 21 
Visit 31 
Visit 41 
Visit 51 
Visit 61 
Visit 7/ET1,3,
4 
Study Day: 
Day -28 to -1 
Day 1 
Day 8 
Day 15 
Day 29 
Day 43 
Day 57 
Day 71 
Day 85 
End of Study Week: Week -4 to -1 
 
Week 1 
Week 2 
Week 4 
Week 6 
Week 8 
Week 10 
Week 12 
Collect/review returned study 
drug and study drug diary 
 
 
 
X 
X 
X 
X 
X 
X 
Dispense study drug & study drug 
diary 
 
X 
 
X 
X 
X 
X 
X 
 
Study drug dosed in the clinic 
 
X 
 
X 
X 
X 
X 
X 
X 
Abbreviations: CTSdatabase = Clinical Trial Subject Database; 
; ET = early termination; IED = Intermittent 
Explosive Disorder; mCGI-C = Modified Clinical Global Impression of Change for IED; mCGI-S = Modified Clinical Global Impression of Severity for IED; 
mPGI-C = Modified Patient Global Impression of Change for IED; mPGI-S = Modified Patient Global Impression of Severity for IED; OAS-M = Overt 
Aggression Scale – Modified; PHQ-9 = Patient Health Questionnaire-9; SCID-5-CT = Structured Clinical Interview for DSM-5, Clinical Trials Version; SDS = 
Sheehan Disability Scale; SF-12 = Short-Form 12-Item Health Survey; S-STS = Sheehan Suicidality Tracking Scale; STAXI-2 = State-Trait Anger Expression 
Inventory-2. 
Note: Whenever possible, each patient should have the rating scales administered by the same raters throughout the study, for consistency of ratings. 
1. Study visits will have a ± 2-day window except the screening period, telephone call on Day 8 (Week 1), and the safety follow-up telephone contact, which 
will have a + 2-day window.  
2. On Day 8 (Week 1), patients who experience adverse events may need to return to the clinic for an unscheduled visit for safety assessments. 
3. Early termination visit will be performed for patients who discontinue double-blind treatment. 
4. All patients will receive a safety follow-up phone call to assess adverse events 7 days after the last dose of study drug. 
5. For each patient, a protocol eligibility form will be completed. 
6. Weight should be measured only at baseline and Day 85 (Week 12) or early termination. 
7. Electrocardiogram should be performed in triplicate at screening. 
8. Electrocardiogram will be performed predose and between 2 and 3 hours (± 15 minutes) postdose on Days 1 and 43, and between 2 and 3 hours 
(± 15 minutes) postdose on Days 15 and 85. 
9. Includes non-fasting chemistry, hematology, and urinalysis tests. Thyroid-stimulation hormone (TSH) will be performed at screening only. If TSH is 
abnormal, reflex triiodothyronine (T3) and thyroxine (T4) will be performed. Glycosylated hemoglobin (HbA1c) test should be performed at screening and 
Day 85 (Week 12) (within 3 hours postdose) or early termination. 
10. Pregnancy test to be performed for females of child bearing potential only at all visits. Patients will be discontinued if the urine pregnancy test is positive. 
11. Blood sample for pharmacokinetic analysis will be collected predose and between 2 and 4 hours postdose on Day 57 (Week 8) and Day 85 (Week 12). 

 
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1. 
BACKGROUND AND CLINICAL RATIONALE 
1.1. 
Intermittent Explosive Disorder 

 
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2. 
STUDY OBJECTIVES 
The objectives of the study are to evaluate the efficacy, safety, and tolerability of AVP-786 
compared to placebo, for the treatment of IED. 

 
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visit for safety assessments. During double-blind treatment, patients will continue to complete 
the 
 each evening before bedtime.  
Study procedures will be performed at each visit as outlined in the Schedule of Evaluations and 
Visits (Table 1). The primary efficacy measure of the study is the OAS-M Total Aggression 
score. Secondary efficacy measures include: OAS-M Total Irritability, OAS-M individual items 
for Aggression and Irritability, 
 - IED days, IED episodes, IED severity, and 
patient’s distress, IED days – investigator assessment, OAS-M for the number of discrete IED 
episodes, mCGI-S, modified Clinical Global Impression of Change for IED (mCGI-C), modified 
Patient Global Impression of Severity for IED (mPGI-S), modified Patient Global Impression of 
Change for IED (mPGI-C), Sheehan Disability Scale (SDS), Short-Form 12-Item Health Survey 
(SF-12), and the State-Trait Anger Expression Inventory-2 (STAXI-2). 
Pharmacokinetic measurements of d6-DM, Q, and certain metabolites will be performed on 
blood samples collected on Days 57 and 85 (Weeks 8 and 12) or early termination. The safety 
and tolerability of AVP-786 will be assessed by reported AEs, physical and neurological 
examinations, vital signs including orthostatic measurements, clinical laboratory assessments, 
resting 12-lead electrocardiograms (ECGs), and the Sheehan Suicidality Tracking Scale (S-STS). 
Pregnancy tests will be conducted at all visits only for females of childbearing potential. 

 
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4. 
STUDY POPULATION 
4.1. 
Inclusion Criteria 
1. Males or females 18 to 65 years of age, inclusive, at the time of informed consent 
2. Diagnosis of current IED according to the DSM-5 criteria, based on the Structured 
Clinical Interview for DSM-5, Clinical Trials Version (SCID-5-CT) 
3. At least 3 IED days (at least 1 IED episode on each day) per week for the 2 consecutive 
weeks directly preceding baseline with 70% 
 compliance during that time 
frame, as assessed by the investigator 
4. Life History of Aggression score ≥ 12 at screening 
5. OAS-M Total Irritability score ≥ 6 at screening and baseline 
6. Modified CGI-S score ≥ 4 at screening and baseline 
7. Sufficient comprehension and cooperation to enable compliance with all procedures and 
assessments 
4.2. 
Exclusion Criteria 
1. Meeting only the DSM-5 A2 criterion for IED 
2. Diagnosis of major depressive disorder within 6 months of screening, significant 
symptoms of a depressive disorder or a score ≥ 10 on the Patient Health Questionnaire-9 
(PHQ-9) at screening 
3. Evidence of serious risk of suicide or self-injury at screening or baseline based on the 
S-STS (i.e., score of 3 or 4 on any one question 2 through 6 or 11 or a score of 2 or 
higher on any one question 1a, 7 through 10, or 12) or who, in the opinion of the 
investigator, present a serious risk of suicide 

 
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4. Lifetime history of schizophrenia, schizoaffective disorder, bipolar disorder, antisocial 
personality disorder, neurocognitive disorder, or mental retardation (DSM-5 criteria). 
Patients with recurrent IED episodes that are better explained by another mental disorder 
or attributable to another medical condition (e.g., head trauma, Alzheimer’s disease) or to 
the physiological effect of a substance (e.g., a drug of abuse, a medication) will be 
excluded (DSM-5 criteria).  

 
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4.3. 
Patient Withdrawal from the Study 
Patients will be advised verbally and in the written ICF that they have the right to withdraw from 
the study at any time without prejudice or loss of benefits to which they are otherwise entitled. 
The investigator or sponsor may discontinue a patient from the study in the event of an 
intercurrent illness, AE, pregnancy, other reasons concerning the health or well-being of the 
patient, decline in patient’s comprehension or cognitive function that affects their ability to 
continue in the study, or in the case of lack of cooperation, non-compliance, protocol violation, 
or other administrative reasons. The early termination visit should be completed. If a patient does 
not return for a scheduled visit, every effort should be made to contact the patient. Regardless of 
the circumstance, every effort should be made to document patient outcome, if possible. The 
investigator should inquire regarding the reason for withdrawal, and request that the patient 
return any unused study drug blister card, study drug diary, and the
, 
and follow-up with the patient regarding any unresolved AEs.  
In addition, any patient with a QTcF > 500 msec (unless due to ventricular pacing) or a QTcF 
interval increase from the predose baseline ECG (Day 1) > 60 msec at any time after 

 
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randomization, will be withdrawn from the study. The QTcF values will be assessed by the 
investigator for clinical significance and recorded. 
Patients who prematurely discontinue will be asked to return to the clinic to complete the Day 85 
(Week 12) assessments (study drug will not be administered in the clinic on that day for patients 
who prematurely discontinue). A safety follow-up telephone call will be performed 7 days after 
the last dose of study drug for all patients.  
If the patient withdraws from the study, and consent is withdrawn by the patient’s representative 
for disclosure of future information, no further evaluations should be performed, and no 
additional data should be collected. The sponsor may retain and continue to use any data 
collected before such withdrawal of consent. Patients who withdraw from the study will not be 
replaced. 

 
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medication Dispensing Log page at the time of dispensing. Space will be provided on both 
panels of the card label to record patient number, visit week, and dispensing date. The study 
medication labels will comply with all applicable federal and local regulations.  
5.1.5. 
Storage of Clinical Supplies 
Clinical supplies must be stored in compliance with label requirements in a secure place and kept 
at room temperature; 25°C (77°F) with excursions permitted to 15°C to 30°C (59°F to 86°F). 
5.1.6. 
Study Medication Administration 
Each patient will receive study medication according to their medicine identification number 
(randomization number) assigned by an interactive web response system (IWRS) randomization 
scheme. Designated staff at each study site will dispense the study medication blister cards. 
Study medication will be self-administered, except on the applicable study visit days when 
patients will take their morning dose of study medication in the clinic in the presence of study 
site personnel, regardless of the time of day.  
Each patient will be instructed to ingest 1 capsule of study medication orally with water BID, 
approximately every 12 (± 4) hours (morning and evening) (2 capsules daily). For each patient, 
the time each dose of study medication is ingested should be consistent throughout double-blind 
treatment. Study drug doses will be recorded in the study drug diary and noted in the electronic 
case report form (eCRF). 
All study medication will be supplied and administered in a double-blind manner throughout the 
12-week treatment period.  
5.2. 
Accountability of Study Supplies 
5.2.1. 
Receipt of Supplies 
The investigator is responsible for maintaining an inventory of each shipment of study 
medication supplies received and comparing it with the accompanying Drug Accountability 
Report/Material Shipping Form. The investigator will verify the accuracy of the information on 
the form, sign and date it, and return the form to the sponsor or designee. Study drug supplies are 
for use only in this study and should not be used for any other purpose. All blister card 
identification numbers will be recorded and tracked at the study site using the Drug 
Accountability Log. 
5.2.2. 
Record of Dispensing 
Accurate recording of all study medication dispensed to patients will be made in the appropriate 
section of the patient’s eCRF. This eCRF will contain the following information: patient number 
to whom the drug was dispensed and date(s) and quantity of study drug dispensed to the patient. 
Additionally, the detachable panel of the 2-panel label on each blister card will be removed and 
affixed to the study medication Dispensing Log page at the time of dispensing. Space will be 

 
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Study drug compliance will be assessed after a review of the study drug diary, capsule count, and 
patient interview; compliance will be defined as ingesting at least 80% of the scheduled dose of 
study drug (compliance range: 80 to 120%). 

 
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6. 
STUDY ASSESSMENTS AND PROCEDURES 
Samples of the efficacy and safety scales and questionnaires to be used during double-blind 
treatment are attached as Appendices. The proper and consistent administration of the rating 
scales is critical to the study objectives. In order to ensure the collection of high quality data, all 
study raters will receive training in the proper administration of the rating scales. In addition to 
training, raters must be certified in order to administer the Life History of Aggression, 
SCID-5-CT, OAS-M, mCGI-S and mCGI-C rating scales. Training and certification will be 
documented and updated as necessary. Raters must be approved by the sponsor or designee 
before administering the scales. Ongoing surveillance and remediation will be conducted to 
ensure that rater competency and consistency is maintained throughout the study. Whenever 
possible, each patient should have the rating scales administered by the same raters throughout 
the study, for consistency of ratings.  
Patients will provide written consent to allow audio recordings of the applicable study 
assessments (at any time, the patient may withdraw consent to allow these recordings); all efforts 
will be taken to maintain confidentiality of the patient.  
6.1. 
Screening Assessments 
CTSdatabase and Subject Database Authorization: Clinical trial registries, such as 
CTSdatabase, seek to reduce duplicate enrollment by identifying duplicates before 
randomization. At the time of providing the Informed Consent for the study, the Investigator or 
designee will explain the IRB-approved Subject Database Authorization to the patient and 
witness the signature. 
During screen, site staff that have received training and login information access to 
www.ctsdatabase.com will enter the patient study ID and authorized patient identifiers.  An 
immediate report detailing matches will be generated and should be printed for source 
documentation. The report will specify either (1) no matches found, (2) a match was found with 
a subject participating in another study within 30 days or (3) the patient matches with a subject 
who has pre-screened at another site. 
At the last patient contact, CTSdatabase staff will automatically close out subjects (early 
termination or completer) based on IWRS. 
Life History of Aggression Scale: This is a 5-item scale (Appendix 3) to assess aggression, 
consequences/antisocial behavior and self-directed aggression, rated on a 6-point scale (0 to 5).15 
The Life History of Aggression Scale total score is considered a reliable and valid measure of a 
life history of overt aggression. Patients must have a score ≥ 12 on this scale at screening to 
continue study participation. A trained, certified clinician will administer the scale at screening 
only. 
Patient Health Questionnaire (PHQ-9): The PHQ-9 is a 9-item, patient self-rated questionnaire 
(Appendix 4) that is specific to depression.16 The PHQ-9 will be used, in the current study, as a 
screening assessment to exclude patients with significant depressive symptoms; those with a 
PHQ-9 score ≥ 10 points at screening will be excluded from further study participation. The 
questionnaire will be completed by the patient (administered by a trained rater) at screening only. 

 
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Structured Clinical Interview for DSM-5, Clinical Trials Version (SCID-5-CT): The 
SCID-5-CT interview is a clinician-rated diagnostic assessment (Appendix 5) that will be 
administered at screening and will be considered a source document in this study.17 The 
interview will be conducted by a trained, certified clinician with experience in the diagnosis of 
mental illness. 
6.2. 
Efficacy Assessments 
6.2.1. 
Overt Aggression Scale - Modified (OAS-M) 
The OAS-M is a clinical-administered instrument (Appendix 6) that was designed to assess 
various manifestations of aggressive behavior in outpatients.18 The version used in the current 
study was designed to evaluate the severity, type, and frequency of aggressive behavior and was 
adapted from 2 established instruments (Overt Aggression Scale, a scale used to assess single 
episodes of aggression in hospitalized psychiatric patients, and the Schedule for Affective 
Disorders and Schizophrenia). The OAS-M evaluates 2 domains – aggression and irritability. 
The OAS-M aggression domain includes the following 4 items: verbal assault, assault against 
objects, assault against others, and assault against self. Each response will be scored using a 
6-point scale (0 = no events within that category to 5 = most severe form of assault within that 
category). 
The rater determines the frequency of each response (item) during the past week and the 
frequency of each item is multiplied by the severity level (0 to 5) that produces a raw score; this 
raw score is multiplied by a severity weight for that item (verbal assault x 1, assault against 
objects x 2, assault against others x 3, and assault against self x 3). The weighted individual item 
scores are added to obtain the OAS-M Total Aggression score. The severity weights were added 
to reduce the influence of lower severity aggressive behaviors on an overall assessment of 
aggression. 
The OAS-M irritability domain includes the following 2 global assessment items: global 
subjective irritability and global overt irritability. Each response will be scored using a 6-point 
scale (0 = not at all to 5 = extreme). The 2 scores are added to create the OAS-M Total 
Irritability score (score range = 0 to 10). Patients must have an OAS-M Total Irritability score 
≥ 6 at screening and baseline to qualify for randomization (at least a moderate degree of 
subjective irritability and overt irritability). 
The OAS-M includes information regarding the number of DSM-5 A1 aggressive episodes and 
the number of DSM-5 A2 aggressive episodes experienced by the patient during the past week. 
The number of discrete IED episodes will be calculated after an interview with the patient and 
will be defined in accordance with the definition provided in DSM-52 and OAS-M Manual. 
Episodes identified as discrete must be separated by at least 30 minutes; episodes separated by 
less than 30 minutes will be considered a single episode, as defined in the OAS-M Manual.  
The OAS-M will be administered by a trained, certified clinician at screening and baseline 
(predose on Day 1), and Days 15 (Week 2), 29 (Week 4), 43 (Week 6), 57 (Week 8), 
71 (Week 10), and 85 (Week 12) or early termination. This scale should be administered by the 

 
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same rater at all visits, with the exception of baseline and Day 85 (Week 12), this scale must be 
administered by the same rater at these visits. The 
 will be reviewed by the 
clinician before the OAS-M is scored, in order to ensure that the ratings reflect a thorough 
assessment of the patient’s IED symptoms.  
6.2.3. 
Modified Clinical Global Impression (CGI) Scales 
The CGI was developed to provide a brief, stand-alone assessment of the clinician’s view of the 
patient’s global functioning prior to and after initiating a study medication.19 The Early Clinical 
Drug Evaluation Unit version of the CGI is the most widely used format of this validated tool, 
and asks that the clinician rate the patient relative to their past experience with other patients 
with the same diagnosis, with or without collateral information.20 The CGI scales are quick to 
administer, provided that the clinician knows the patient well.  
Reliability and validity of CGI have been tested in multiple studies, including patients with 
dementia, schizophrenia, and affective disorders.21,22 Overall, CGI showed high correlation 
(r: ~90%) with other assessment instruments, and it has also shown positive significant 
relationships and concurrent validity with other clinician’s rating. In addition, the scale has good 
sensitivity to change over time.  
Patients with IED have marked impairment in aggression, anger, and irritability, and global 
assessments may not be sensitive to specific changes in these symptoms. In this study, the CGI 
scales have been modified for IED, and the clinician is explicitly instructed to rate the severity 
(mCGI-S) or change (mCGI-C) in the patient’s IED symptoms, aggression, anger and irritability, 
to ensure that the global ratings specifically evaluate the target symptoms.  

 
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6.2.3.1. 
Modified Clinical Global Impression of Severity for IED (mCGI-S) 
The mCGI-S (Appendix 8) is a modified version of the CGI-S scale that provides a global 
evaluation of the patient’s IED symptoms (e.g., aggression, anger, and irritability).19 The 
mCGI-S is used to measure severity of the patient’s symptoms from the clinician’s perspective in 
the context of other patients with IED. The mCGI-S responses will be scored on a 7-point scale 
(1 = normal, not at all ill; 2 = borderline ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 
6 = severely ill; 7 = among the most extremely ill patients). 
The mCGI-S will be administered by a trained, certified clinician at screening, baseline (predose 
on Day 1), and Days 43 (Week 6) and 85 (Week 12) or early termination. At these visits, the 
OAS-M will be administered 
 (when applicable) will be reviewed before 
this scale is scored, in order to ensure that the rating reflects a thorough assessment of the 
patient’s IED symptoms. The patient must have a mCGI-S score ≥ 4 (at least moderately ill) at 
screening and baseline to qualify for randomization. 
6.2.3.2. 
Modified Clinical Global Impression of Change for IED (mCGI-C) 
The mCGI-C (Appendix 9) is a modified version of the CGI-C scale.19 The clinician will rate the 
overall global change in the patient’s IED symptoms (e.g., aggression, anger, and irritability) 
from baseline at the scheduled double-blind visits. The mCGI-C responses will be scored using a 
7-point scale (1 = very much improved; 2 = much improved; 3 = minimally improved; 4 = no 
change; 5 = minimally worse; 6 = much worse; 7 = very much worse).  
The mCGI-C will be completed by a trained, certified clinician on Days 43 (Week 6) and 85 
(Week 12) or early termination. At these visits, the OAS-M will be administered and the 
 
 will be reviewed before this scale is scored, in order to ensure that the rating reflects 
a thorough assessment of the patient’s IED symptoms. 
6.2.4. 
Modified Patient Global Impression of Severity for IED (mPGI-S) 
The mPGI-S (Appendix 10) is a single-question scale that will ask patients to rate the overall 
global severity of their IED symptoms (e.g., aggression, anger, and irritability) using a 7-point 
scale (1 = normal, no symptoms; 2 = borderline symptoms; 3 = mild symptoms; 4 = moderately 
bad symptoms; 5 = markedly bad symptoms; 6 = severely bad symptoms; 7 = extremely bad 
symptoms).  
The mPGI-S will be completed by the patient (administered by a trained rater) at baseline and 
Days 43 and 85 (Weeks 6 and 12) or early termination.  
6.2.5. 
Modified Patient Global Impression of Change for IED (mPGI-C) 
The mPGI-C (Appendix 11) is a single-question scale that will ask patients to rate the overall 
global change in their IED symptoms (e.g., aggression, anger, and irritability) from baseline at 
the scheduled double-blind visits. The mPGI-C responses will be scored using a 7-point scale 
(1 = very much improved; 2 = much improved; 3 = minimally improved; 4 = no change; 
5 = minimally worse; 6 = much worse; 7 = very much worse).  

 
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The mPGI-C will be completed by the patient (administered by a trained rater) on Days 43 and 
85 (Weeks 6 and 12) or early termination.  
6.2.6. 
Sheehan Disability Scale (SDS) 
The SDS (Appendix 12) is a 3-item, patient-rated questionnaire, used to evaluate impairments in 
the domains of work/school, social life or leisure activities, and family life or home 
responsibility.23 The patient will rate the degree of impairment in work/school, social life or 
leisure activities, and family life or home responsibility as a result of IED symptoms using a 
visual analogue scale (0 = no impairment; 1, 2, 3 = mildly; 4, 5, 6 = moderately; 7, 8, 
9 = markedly; 10 = extremely). 
The SDS will be completed by the patient (administered by a trained rater) at baseline (predose, 
Day 1), Day 43 (Week 6), and Day 85 (Week 12) or early termination. 
6.2.7. 
Short-Form 12-Item Health Survey (SF-12)  
The SF-12 (Appendix 13) is a 12-item, patient self-rated questionnaire that measures general 
health status and quality of life.24 The SF-12 is a shorter version of the SF-36 that was designed 
for the Medical Outcomes Study, a multi-year study of patients with chronic conditions. The SF-
12 is an extensively validated instrument with normative data from large numbers of individuals 
from both clinical samples and the general population. The SF-12 includes 12 questions that will 
measure the effects of health on physical functioning, role limitations due to physical health, 
bodily pain, general health perception, vitality, social functioning, role limitations due to 
emotional problems, and mental health. These questions when combined, scored, and weighted, 
will result in 2 scales of mental and physical functioning and overall health-related quality of 
life.  
The SF-12 will be completed by the patient (administered by a trained rater) at baseline (predose, 
Day 1) and Days 43 and 85 (Weeks 6 and 12) or early termination.  
6.2.8. 
State-Trait Anger Expression Inventory-2 (STAXI-2) 
The STAXI-2 (Appendix 14) is a 57-item, patient self-rated scale that measures the intensity of 
anger as an emotional state (state anger) and the disposition to experience angry feelings as a 
personality trait (trait anger).25 The STAXI-2 includes a measure of state anger, trait anger, anger 
expression-out, anger expression-in, anger control-out and anger control, and the anger 
expression index (overall measure of the expression and control of anger). The state anger items 
will be scored using a 4-point scale (1 = not at all to 4 = very much so) to assess the intensity of 
anger feelings at a particular moment. The other scales will be scored using a 4-point scale to 
assess how frequently angry feeling are experienced, expressed, suppressed, or controlled 
(1 = almost never to 4 = almost always).  
The STAXI-2 will be completed by the patient (administered by a trained rater) at baseline 
(predose, Day 1) and Days 43 and 85 (Weeks 6 and 12) or early termination.  

 
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6.3. 
Pharmacokinetics 
Blood samples for the determination of the plasma concentrations of d6-DM, Q, and certain 
metabolites will be collected predose and between 2 and 4 hours postdose on Day 57 (Week 8) 
and Day 85 (Week 12). These samples will be collected per instructions provided by the sponsor. 
The date and time of each sample collection and the date and time of the last dose of study drug 
prior to the sample collection will be recorded on the eCRF.  
Blood samples will be separated by centrifugation and then frozen at -20° C until assayed at the 
analytical unit. Procedures for the collection, storage and shipping of samples for analysis will be 
provided to the study sites by the sponsor at the time of study initiation.  
6.5. 
Safety Assessments 
6.5.1. 
Adverse Events 
6.5.1.1. 
Definitions 
An AE is any untoward medical occurrence or unintended change (including physical, 
psychiatric [e.g., depression], or behavioral) from the time the ICF is signed, including 
inter-current illness, which occurs during the course of a clinical trial after treatment has started, 
whether considered related to treatment or not. An AE can therefore be any unfavorable and 
unintended sign (including an abnormal laboratory finding, for example), symptom, or disease 
temporally associated with the use of a medicinal product, whether or not considered related to 
the medicinal product. Changes associated with normal growth and development that do not vary 
in frequency or magnitude from that ordinarily anticipated clinically are not AEs (e.g., onset of 
menstruation occurring at a physiologically appropriate time). Any concerning symptoms of 
depression will be discussed with the investigator, who is also a psychiatrist, and refer the patient 
to their primary physician, if necessary. 
Clinical AEs should be described by diagnosis and not by symptoms when possible (e.g., cold, 
seasonal allergies, instead of “runny nose”). 
An overdose is a deliberate or inadvertent administration of a treatment at a dose higher than 
specified in the protocol and higher than known therapeutic doses. It must be reported 
irrespective of outcome even if toxic effects were not observed. 
Adverse events will be graded on a 3-point scale and reported in detail as indicated on the eCRF: 
Mild:  
Event easily tolerated, causing minimal discomfort and not interfering with 
normal everyday activities 

 
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Moderate:  Event sufficiently discomforting to interfere with normal everyday activities 
Severe:  
Event that is incapacitating and/or preventing normal everyday activities 
The relationship of each AE to study medication should be determined by the investigator using 
the following explanations: 
Not related:  
Event is clearly related to other factors such as the patient’s clinical state, 
therapeutic interventions, or concomitant medications administered to the 
patient 
Unlikely related:  Event is most likely produced by other factors such as the patient’s clinical 
state, therapeutic interventions, or concomitant medications administered 
to the patient; and does not follow a known response pattern to the study 
medication 
Possibly related:  Event follows a reasonable temporal sequence from the time of drug 
administration; and/or follows a known response pattern to the study 
medication; but could have been produced by other factors such as the 
patient’s clinical state, therapeutic interventions, or concomitant 
medications administered to the patient 
Related:  
Event follows a reasonable temporal sequence from the time of drug 
administration; and follows a known response pattern to the study 
medication; and cannot be reasonably explained by other factors such as 
the patient’s clinical state, therapeutic interventions, or concomitant 
medications administered to the patient 
6.5.1.2. 
Serious Adverse Events 
A serious adverse event (SAE) is any AE that results in any of the following outcomes: 
1. Death 
2. Life-threatening experience (one that places the patient, in the view of the initial reporter, 
at immediate risk of death from the AE as it occurred, i.e., it does not include an AE that, 
had it occurred in a more severe form, might have caused death) 
3. Persistent or significant disability/incapacity (disability is a substantial disruption of a 
person’s ability to conduct normal life functions) 
4. Inpatient hospitalization or prolongation of hospitalization 
5. Congenital anomaly/birth defect 
Important medical events that may not result in death, or be life-threatening, or require 
hospitalization may be considered an SAE when, based upon appropriate medical judgment, they 
may jeopardize the patient or require medical or surgical intervention to prevent one of the 
outcomes listed in the definition. 
The terms “cancer” and “overdose” are not considered to be SAEs, but if a patient experiences 
cancer or overdose, they are still reportable as AEs. 

 
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Pregnancy is not considered to be an AE or an SAE, unless a complication occurs that meets the 
requirements for an AE or SAE, but must be reported on a pregnancy report form. Females who 
are pregnant or likely to become pregnant are excluded from this study. In the event a patient 
becomes pregnant during the study, study medication must be discontinued, a pregnancy report 
form must be completed to capture potential drug exposure during pregnancy, and the pregnancy 
must be reported within 24 hours of notice. Any pregnant patient must be followed until the 
outcome of her pregnancy is known (i.e., normal delivery, abnormal delivery, 
spontaneous/voluntary/therapeutic abortion). The pregnancy (i.e., mother and fetus) must be 
followed-up through delivery with regard to outcome.  
A pregnancy report form must also be completed in the event that a female partner of a male 
patient becomes pregnant within 30 days after the last dose of study drug or study completion, 
whichever is greater.  
The term ‘severe’ is a measure of intensity; thus a severe AE is not necessarily serious. For 
example, nausea of several hours duration may be rated as severe, but may not be clinically 
serious. 
6.5.1.3. 
Reporting 
Patients will be queried regarding AEs at each study visit after screening. The investigator will 
assess and record all reported AEs. Any AE reported after the last dose of study drug will be 
followed-up until 30 days. Patients will receive a safety follow-up telephone call 7 days after the 
last dose of study drug to query regarding any AEs experienced since that visit.  
A death occurring during the study, or which comes to the attention of the investigator within 
30 days after the last dose of study drug whether considered treatment-related or not, must be 
reported to the sponsor. 
For all SAEs, including an abnormal laboratory test value assessed as clinically significant, the 
investigator should consult with the sponsor’s medical monitor or designated representative as 
needed and report any SAE by fax/email form as detailed below no later than 24 hours after 
becoming aware of the event. Subsequently, the SAE must be assessed for the following details: 
seriousness of the event, start date, stop date, intensity, frequency, relationship to study drug, 
action taken regarding study drug, any treatment required, and outcome to date. These details 
must be recorded on the clinical study AE report form that is provided. This form should be 
transmitted by fax and the details given by telephone to the contact numbers below. 
SAE reporting by FAX or e-mail correspondence 
FAX:
E-ma
SAE hotline (24-hour/7 days a week) 
Phone: 
 
Such preliminary reports will be followed by detailed descriptions later, which may include 
copies of hospital case reports, autopsy reports, and other related documents when requested. 

 
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The Institutional Review Board (IRB) will be notified of such an event in writing as soon as is 
practical in compliance with federal and local regulations. 
6.5.2. 
Physical and Neurological Examinations 
Physical and neurological examinations will be performed at screening (Day -28 to Day -1), and 
Day 85 (Week 12). The physical examination will include assessments of head, eyes, ears, nose, 
throat, lymph nodes, skin, extremities, respiratory, gastrointestinal, musculoskeletal, 
cardiovascular, and nervous systems. The neurological examination will include assessments of 
mental status, cranial nerves, motor system, reflexes, coordination, gait and station, and sensory 
system. The physical and neurological examinations should be performed by the same person 
each time, whenever possible.  
Physical and neurological examination abnormalities determined by the investigator to be 
clinically significant at screening should be recorded as medical history.  
Any clinically significant changes in physical and neurological examination findings from the 
screening examination should be recorded as AEs. 
6.5.3. 
Vital Signs Measurements 
Vital sign measurements, including orthostatic blood pressure and pulse rate, respiratory rate 
(breaths/minute) (recorded only sitting), and body temperature (ºF) (recorded only sitting), will 
be recorded at each study visit. Blood pressure and pulse will be measured after a patient has 
been sitting for at least 5 minutes (each measurement will be taken twice in the same position 
and recorded) and after approximately 3 minutes of standing.  
Weight will be recorded at baseline (predose, Day 1) and Day 85 (Week 12) only.  
6.5.4. 
Clinical Laboratory Tests 
Clinical laboratory tests will be analyzed by a central laboratory that will provide laboratory kits 
and instructions to the study sites at the time of study initiation. Specimens will be appropriately 
processed by the central laboratory and laboratory reports will be made available to the 
investigator in a timely manner to ensure appropriate clinical review. The laboratory test battery 
will include both screening and routine laboratory tests. The following clinical laboratory 
assessments will be performed at the specified visits.  
Screening Tests 
• Thyroid function tests – Thyroid dysfunction will be detected by measuring thyroid-
stimulating hormone (TSH) at screening. If the TSH results are abnormal, reflex 
triiodothyronine (T3) and thyroxine (T4) tests will be performed. If the thyroid 
function tests results are judged clinically significant by the investigator, the patient 
will be excluded from further study participation.  
Routine Clinical Laboratory Tests 
The routine clinical laboratory tests will be performed non-fasting during the screening period, 
Day 57 (Week 8), and Day 85 (Week 12) (within 3 hours postdose) or early termination.  

 
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• Chemistry panel - calcium, magnesium, phosphorus, glucose, sodium, potassium, 
chloride, carbon dioxide, blood urea nitrogen, serum creatinine, uric acid, albumin, 
total bilirubin, alkaline phosphatase, lactate dehydrogenase, aspartate 
aminotransferase/serum glutamic oxaloacetic transaminase, alanine 
aminotransferase/serum glutamic pyruvic transaminase, creatine kinase, 
gamma-glutamyl transferase, triglycerides, total protein, and total cholesterol; 
additionally, glycosylated hemoglobin (HbA1c) will be measured at screening and 
Day 85 (Week 12) or early termination only 
• Hematology panel - red blood cell count, hemoglobin, hematocrit, white blood cell 
count, neutrophils, bands, lymphocytes, monocytes, eosinophils, basophils, platelet 
count, and morphology 
• Urinalysis - pH, specific gravity, protein, glucose, ketones, blood, leucocyte esterase, 
nitrates, and microscopic appearance 
Any patient with clinically significant abnormal laboratory test results may be required by the 
medical monitor to have a repeat test 1 week later or earlier, if medically indicated. Clinically 
significant laboratory abnormalities may be a basis for exclusion from study entry. 
Urine Drug Screen 
• UDS – Urine screen for amphetamines, barbiturates, benzodiazepines, cocaine 
metabolites, opiates, and marijuana metabolites will be performed at screening and 
baseline; patients with a positive UDS may be excluded from further study 
participation after a discussion with the medical monitor. Additionally, the UDS will 
be repeated on Day 29 (Week 4), Day 57 (Week 8), and Day 85 (Week 12) or early 
termination. 
6.5.5. 
Pregnancy Tests 
Urine pregnancy test will be performed at all study visits only for females of childbearing 
potential. Patients with a positive pregnancy test must be discontinued from the study. 
All female patients of childbearing potential should be instructed to use appropriate birth control 
methods until 30 days after the last dose of study drug. Females of childbearing potential are 
defined as any female who has experienced menarche and who is NOT permanently sterile or 
postmenopausal. Postmenopausal is defined as 12 consecutive months with no menses without 
an alternative medical cause.  
6.5.6. 
Electrocardiograms 
A resting 12-lead ECG will be performed at each study visit; the screening, ECG will be 
performed in triplicate. On Day 1 (baseline) and Day 43 (Week 6), an ECG recording will be 
performed predose and between 2 and 3 hours postdose (± 15 minutes) after ingesting the 
morning dose of study drug in the clinic; on Days 15 and 85 (Weeks 2 and 12), the ECG will be 
obtained between 2 and 3 hours (± 15 minutes) postdose in the clinic (no predose ECG will be 
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The ECG equipment will be provided to the study center by the central reader. The ECG 
assessment will be recorded at the study center and will include general findings, including heart 
rate (beats/minute), QRS complex and PR and QTc intervals. Results will be provided by the 
central reader to the investigators within 24 hours; ECG data will be transferred automatically 
from the central reader into the sponsor’s database monthly. Any ECG abnormality present at 
screening will be recorded as medical history. Any changes from the ECG status at screening 
that are deemed to be clinically significant by the investigator should be captured as AEs.  
Any clinically significant abnormal ECG should be discussed with the medical monitor and, if 
necessary, the ECG should be repeated within approximately 1 week. In addition, any patient 
with a QTcF interval > 500 msec (unless due to ventricular pacing) or a QTcF interval increase 
from the predose baseline ECG (Day 1) > 60 msec at any time after randomization, will be 
withdrawn from the study. 
6.5.7. 
Sheehan Suicidality Tracking Scale (S-STS)  
A measurement of suicidality, a term referencing suicidal ideas or suicidal behaviors, is required 
by regulatory agencies in psychiatric patients participating in clinical studies. The S-STS 
(Appendix 15) is a measure of suicidal ideation and suicidal behaviors, and will serve as an 
ongoing assessment of suicidality (i.e., suicidal thinking and behavior) during this study. The 
S-STS is a prospective scale that assesses treatment-emergent suicidal thoughts and behaviors. 
Each item of the S-STS is scored by the clinician using a 5-point scale (0 = not at all; 1 = a little; 
2 = moderately; 3 = very; 4 = extremely).26 The S-STS can be analyzed as individual item scores, 
suicidal ideation subscale score, suicidal behavior subscale score, or total score. The S-STS takes 
approximately 5 to 10 minutes to administer. At screening, the timeframe for the items will be 
‘in the past 6 months’ and for all other visits, the timeframe will be ‘since the last visit’.  
The S-STS will be completed by a trained clinician at each study visit or early termination. 
Whenever possible, the same rater should administer the S-STS at these visits. Any change in the 
S-STS score indicating the presence of suicidality should be evaluated by the investigator and 
reported to the medical monitor. The investigator, who is also a psychiatrist, must provide 
necessary intervention to manage suicidal ideation and refer the patient to their primary 
physician. 
6.6. 
Schedule of Evaluations and Procedures 
A schedule of evaluations and procedures is provided in Table 1. 
6.6.1. 
Description of Study Procedures 
At each study visit, a member of the study staff will be required to enter information into the 
IWRS regarding patient data and pre-defined study assessment results. Further instructions will 
be provided in the IWRS Site Manual. 

 
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Baseline (predose): 
1. Inclusion/exclusion criteria will be reviewed, eligibility will be reconfirmed, and 
eligibility form will be completed.  
2. Review the 
 to ensure that each patient had at least 3 IED days (at least 
1 IED episode on each day) per week for the 2 consecutive weeks, directly preceding 
baseline, with 70% compliance during that time frame (assessed by the investigator). 
3. Patient will be queried regarding AEs and concomitant medication use (including OTC, 
vitamins, and herbal supplements). 
4. Vital signs, including weight, will be measured and recorded.  
5. Resting 12-lead ECG will be performed. 
6. Urine pregnancy test will be performed for females of childbearing potential only. 
7. Urine sample will be collected for UDS. 
8. Blood sample will be collected for 
 
9. The following efficacy assessments will be completed: OAS-M, mCGI-S, mPGI-S, SDS, 
SF-12, and STAXI-2 (OAS-M will be completed and the
 will be 
reviewed before the mCGI-S is administered). 
10. S-STS safety assessment will be completed. 
11. Patients will be randomized once it is determined that they satisfy all of the inclusion and 
none of the exclusion criteria (on the basis of the screening and baseline assessments 
described above) and will be assigned a study medication kit number via IWRS. 
Study Drug Dosing: 
The first dose of study medication will be administered from the AM strip of the study drug 
blister card at the clinic regardless of the time of day. 
Postdose: 
1. Resting 12-lead ECG will be performed between 2 and 3 hours (± 15 minutes) postdose. 
2. Patient will be queried regarding any postdose AEs. 
3. Study drug diary and study drug blister card will be dispensed. 
Patient Instructions 
Patients will be instructed to ingest study drug BID (1 capsule from the top row [AM] of the 
study drug blister card in the morning and 1 capsule from the bottom row [PM] of the blister card 
in the evening, approximately every 12 hours ± 4 hours). For the next study visit, patients will be 
reminded not to ingest their morning dose of study drug at home on that day instead the dose on 
that day will be ingested in the clinic. 
The investigator and/or study coordinator will provide patients with detailed instructions 
regarding study procedures, including how to complete the study drug diary, and to remind 

 
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patients to complete the 
 each evening before bedtime. Patients will also be 
instructed to consult with the study site prior to taking any non-study medications and to return 
the study drug blister card and the study drug diary at each double-blind visit. These 
requirements will be reviewed in-person, and patients will be queried at the end of each double-
blind visit to be certain they understand what is required of them. 
6.6.1.3. 
Visit 2 (Day 15/Week 2 ± 2-day window) 
In the morning of Day 15, the following procedures will be performed. 
Predose: 
1. Patient will be queried regarding AEs and concomitant medication use (including OTC, 
vitamins, and herbal supplements). 
2. Vital signs will be measured and recorded. 
3. Urine pregnancy test will be performed for females of childbearing potential only. 
4. Collect and review study drug diary and study drug blister card. 
Study Drug Dosing: 
Study drug will be administered from the AM strip of the newly dispensed study drug blister 
card at the clinic regardless of the time of day.  
Postdose: 
1. 
 will be reviewed; investigator assessment of IED days and the OAS-M 
will be completed. 
2. S-STS safety assessment will be completed. 
3. Resting 12-lead ECG will be performed between 2 and 3 hours (± 15 minutes) postdose. 
4. Study drug diary and study drug blister card will be dispensed. 
Patient Instructions 
Patients will be instructed to ingest study drug BID (1 capsule from the top row [AM] of the 
blister card in the morning and 1 capsule from the bottom row [PM] of the study drug blister card 
in the evening, approximately every 12 hours ± 4 hours) until the next visit. For the next study 
visit, patients will be reminded not to ingest their morning dose of study drug at home on that 
day instead the morning dose will be ingested in the clinic. 
The investigator and/or study coordinator will provide patients with detailed instructions 
regarding study procedures, including how to complete the study drug diary, and to remind 
patients to complete the 
 each evening before bedtime. Patients will be 
instructed to consult with the study site prior to taking any non-study medications and to return 
the study drug blister card and the study drug diary at each double-blind visit. These 
requirements will be reviewed in-person, and patients will be queried at the end of each 
double-blind visit to be certain they understand what is required of them. 

 
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6.6.1.4. 
Visit 3 (Day 29/Week 4 ± 2-day window) 
In the morning of Day 29, the following procedures will be performed. 
Predose: 
1. Patient will be queried regarding AEs and concomitant medication use (including OTC, 
vitamins, and herbal supplements). 
2. Vital signs will be measured and recorded. 
3. Urine pregnancy test will be performed for females of childbearing potential only. 
4. Urine sample will be collected for UDS. 
5. Study drug diary and the study drug blister card will be collected and reviewed. 
Study Drug Dosing: 
Study drug will be administered from the AM strip of the newly dispensed study drug blister 
card at the clinic regardless of the time of day. 
Postdose: 
1. 
 will be reviewed; investigator assessment of IED days and the OAS-M 
will be completed. 
2. S-STS safety assessment will be completed. 
3. Study drug diary and study drug blister card will be dispensed. 
Patient Instructions 
Patients will be instructed to ingest study drug BID (1 capsule from the top row [AM] of the 
study drug blister card in the morning and 1 capsule from the bottom row [PM] of the blister card 
in the evening, approximately every 12 hours ± 4 hours) until the next visit. For the next study 
visit, patients will be reminded not to ingest their morning dose of study drug at home on that 
day instead the morning dose will be ingested in the clinic. 
The investigator and/or study coordinator will provide patients with detailed instructions 
regarding study procedures, including how to complete the study drug diary, and to remind 
patients to complete the 
 each evening before bedtime. Patients will be 
instructed to consult with the study site prior to taking any non-study medications and to return 
the study drug blister card and the study drug diary at each double-blind study visit. These 
requirements will be reviewed in-person, and patients will be queried at the end of each 
double-blind visit to be certain they understand what is required of them. 
6.6.1.5. 
Visit 4 (Day 43/Week 6 ± 2-day window) 
In the morning of Day 43, the following procedures will be performed.  
Predose: 
1. Patient will be queried regarding AEs and concomitant medication use (including OTC, 
vitamins, and herbal supplements). 

 
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2. Vital signs will be measured and recorded. 
3. Resting 12-lead ECG will be performed. 
4. Urine pregnancy test will be performed for females of childbearing potential only. 
5. Study drug diary and study drug blister card will be collected and reviewed. 
Study Drug Dosing: 
Study drug will be administered from the AM strip of the newly dispensed study drug blister 
card at the clinic regardless of the time of day.  
Postdose: 
1. 
 will be reviewed and the following efficacy assessments will be 
completed: OAS-M, investigator assessment of IED days, mCGI-S, mCGI-C, mPGI-S, 
mPGI-C, SDS, SF-12 and STAXI-2 (OAS-M will be completed and the 
 
will be reviewed before the mCGI-S and mCGI-C scales are administered). 
2. S-STS safety assessment will be completed. 
3. Resting 12-lead ECG will be performed between 2 and 3 hours (± 15 minutes) postdose. 
4. Study drug diary and study drug blister card will be dispensed. 
Patient Instructions 
Patients will be instructed to ingest study drug BID (1 capsule from the top row [AM] of the 
study drug blister card in the morning and 1 capsule from the bottom row [PM] of the blister card 
in the evening, approximately every 12 hours ± 4 hours) until the next visit. For the next study 
visit, patients will be reminded not to ingest their morning dose of study drug at home on that 
day instead the morning dose will be ingested in the clinic. 
The investigator and/or study coordinator will provide patients with detailed instructions 
regarding study procedures, including how to complete the study drug diary, and to remind 
patients to complete the 
 each evening before bedtime. Patients will also be 
instructed to consult with the study site prior to taking any non-study medications and to return 
the study drug blister card and the study drug diary at each double-blind study visit. These 
requirements will be reviewed in-person, and patients will be queried at the end of each 
double-blind visit to be certain they understand what is required of them. 
6.6.1.6. 
Visit 5 (Day 57/Week 8 ± 2-day window) 
In the morning of Day 57, the following procedures will be performed.  
Predose: 
1. Patient will be queried regarding AEs and concomitant medication use (including OTC, 
vitamins, and herbal supplements). 
2. Vital signs will be measured and recorded. 

 
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3. Blood sample for pharmacokinetic analysis and safety laboratory assessments 
(hematology and chemistry) will be collected. 
4. Urine sample for urinalysis and UDS will be collected. 
5. Urine pregnancy test will be performed for females of childbearing potential only. 
6. Study drug diary and the study drug blister card will be collected and reviewed. 
Study Drug Dosing: 
Study drug will be administered from the AM strip of the newly dispensed study drug blister 
card at the clinic regardless of the time of day.  
Postdose: 
1. The 
 will be reviewed; investigator assessment of IED days and the 
OAS-M will be completed. 
2. S-STS safety assessment will be completed. 
3. Blood sample for pharmacokinetic analysis will be collected between 2 and 4 hours 
postdose. 
4. Study drug diary and study drug blister card will be dispensed. 
Patient Instructions 
Patients will be instructed to ingest study drug BID (1 capsule from the top row [AM] of the stud 
drug blister card in the morning and 1 capsule from the bottom row [PM] of the study drug 
blister card in the evening, approximately every 12 hours ± 4 hours) until the next visit. For the 
next study visit, patients will be reminded not to ingest their morning dose of study drug at home 
on that day instead the morning dose will be ingested in the clinic. 
The investigator and/or study coordinator will provide patients with detailed instructions 
regarding study procedures, including how to complete the study drug diary, and to remind 
patients to complete the 
 each evening before bedtime. Patients will also be 
instructed to consult with the study site prior to taking any non-study medications and to return 
the study drug diary and study drug blister card at each double-blind study visit. These 
requirements will be reviewed in-person, and patients will be queried at the end of each 
double-blind visit to be certain they understand what is required of them. 
6.6.1.7. 
Visit 6 (Day 71/Week 10 ± 2-day window) 
In the morning of Day 71, the following procedures will be performed.  
Predose: 
1. Patient will be queried regarding AEs and concomitant medication use (including OTC, 
vitamins, and herbal supplements). 
2. Vital signs will be measured and recorded. 
3. Urine pregnancy test will be performed for females of childbearing potential only. 

 
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4. Study drug diary and study drug blister card will be collected and reviewed. 
Study Drug Dosing: 
Study drug will be administered from the AM strip of the newly dispensed study drug blister 
card at the clinic regardless of the time of day.  
Postdose: 
1. 
 will be reviewed; investigator assessment of IED days and the OAS-M 
will be completed. 
2. S-STS safety assessment will be completed. 
3. Study drug diary and study drug blister card will be dispensed. 
Patient Instructions 
Patients will be instructed to ingest study drug BID (1 capsule from the top row [AM] of the 
blister card in the morning and 1 capsule from the bottom row [PM] of the study drug blister card 
in the evening, approximately every 12 hours ± 4 hours) until the next visit. For the next study 
visit, patients will be reminded not to ingest their morning dose of study drug at home on that 
day instead the morning dose will be ingested in the clinic. Patients will be reminded to bring the 
 to the next study visit (final assessment).  
The investigator and/or study coordinator will provide patients with detailed instructions 
regarding study procedures, including how to complete the study drug diary, and to remind 
patients to complete the 
 each evening before bedtime. Patients will also be 
instructed to consult with the study site prior to taking any non-study medications and to return 
the study drug diary and study drug blister card at each double-blind study visit. These 
requirements will be reviewed in-person, and patients will be queried at the end of each 
double-blind visit to be certain they understand what is required of them. 
6.6.1.8. 
Visit 7 (Day 85/Week 12 ± 2-day window)/Early Termination 
In the morning of Day 85, the following procedures will be performed: 
Predose: 
1. Patient will be queried regarding AEs and concomitant medication use (including OTC, 
vitamins, and herbal supplements). 
2. Vital signs, including weight, will be measured and recorded. 
3. Physical and neurological examination will be performed. 
4. Urine pregnancy test will be performed for females of childbearing potential only. 
5. Urine sample will be collected for urinalysis and UDS. 
6. Blood sample for pharmacokinetic analysis will be collected.  
7. Study drug diary and study drug blister card will be collected and reviewed. 
8. 
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Study Drug Dosing: 
Last dose of study drug will be administered from the AM strip of the study drug blister card 
brought in by the patient, regardless of the time of day, for those patients who complete 
double-blind treatment (not those who prematurely discontinue). 
Postdose: 
1. 
 will be reviewed; the following efficacy assessments will be completed: 
OAS-M, investigator assessment of IED days, mCGI-S, mCGI-C, mPGI-S, mPGI-C, 
SDS, SF-12, and STAXI-2 (OAS-M will be completed and the 
 will be 
reviewed before the mCGI-S and mCGI-C are administered). 
2. S-STS safety assessment will be completed. 
3. Resting 12-lead ECG will be performed between 2 and 3 hours (± 15 minutes) postdose. 
4. Blood sample for hematology and chemistry, including HbA1c, will be collected within 
3 hours postdose. 
5. Blood samples for the pharmacokinetic analysis will be collected between 2 and 4 hours 
postdose. 
6. At the last patient contact, site staff will access CTSdatabase, enter the patient study ID 
and the nature of the last contact (i.e., early termination or completer). 
Any previously reported and unresolved AE, and any newly reported AE at the time of this visit 
will be followed-up for up to 30 days after the last dose of study drug.  
Procedures for Early Termination: Patients who discontinue treatment are required to complete 
study procedures as listed above, within 48 hours whenever possible, of the last dose of study 
drug. For these patients, study drug will not be administered in the clinic on that day and, 
therefore, there is no specific time frame for the 12-lead ECG and the blood/urine specimen 
collection (clinical laboratory tests, UDS, or pharmacokinetics).  
6.6.1.9. 
Safety Telephone Contact (Day 8/Week 1 + 2-day window) 
Patients will receive a safety telephone contact to assess AEs and query regarding concomitant 
medications; patients who experience AEs may need to return to the clinic for an unscheduled 
visit for safety assessments. 
6.6.1.10. Safety Follow-up Telephone Contact (+ 2-day window) 
Patients will receive a safety telephone contact to assess AEs, 7 days after the last dose of study 
drug. 

 
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7. 
DATA MANAGEMENT 
7.1. 
Data Collection 
The sponsor or designated representative (e.g., CRO) will perform the data management 
activities in accordance with the data management plan (DMP). The DMP will outline the 
systems and procedures to be used in the study. 
Clinical study data will be reported (captured) by study site personnel on eCRFs. An eCRF must 
be completed for every patient enrolled in the study. The eCRF data will be entered by trained 
study site personnel and then reviewed for completeness and accuracy and electronically signed 
by the investigator or designee. All study site personnel must use a password-protected user 
account to enter, review, or correct study data. Electronic signature procedures shall comply with 
the CFR Title 21 Part 11. Passwords will be strictly confidential. 
All eCRF data will be exported from the electronic data capture (EDC) system and transferred to 
the sponsor or representative. The sponsor or representative will also receive electronic transfers 
of non-eCRF data such as laboratory data from the central laboratory, ECG data from the central 
ECG reader, as well as other data from third-party vendors as appropriate. The electronic data 
format of all transfers will be agreed upon with the sponsor or representative and documented in 
the DMP or vendor data transfer requirements document as appropriate. 
The clinical monitoring staff will perform source data verification of the data recorded in the 
EDC system with source documents at the clinical study sites according to the data management 
plan and clinical monitoring plan. The data will be subjected to consistency and validation 
checks within the EDC system with supplemental data reviews performed outside of the EDC 
system.  
Medical history and adverse events will be coded using a current version of Medical Dictionary 
for Regulatory Activities (MedDRA), and concomitant medications using a current version of 
the World Health Organization Drug Dictionary. The sponsor or representative will perform a 
medical safety review of the coding. 
Completed eCRF images with a date- and time-stamped electronic audit trail indicating the user, 
the data entered, and any reason for change (if applicable) will be archived at the investigator’s 
site and at the sponsor’s site. 
7.2. 
Electronic Clinical Outcomes Assessment Data 
This study will use electronic clinical outcome assessments (eCOA) to capture questionnaire 
data. The data will be transmitted electronically to a centralized database at the eCOA vendor. 
Data may be reviewed by site staff via secure access.  
Upon study completion, the eCOA data, audit trail, and trial and system documentation will be 
archived. The investigator will receive questionnaire data for the site that must be kept with the 
study records as source data. Acknowledgement of receipt of the archival data is required.  
eCOA data will be collected using an electronic device provided by an eCOA vendor. The device 
is designed for entry of data in a way that is attributable, secure, and accurate, in compliance 

 
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8. 
STATISTICAL METHODS 
8.1. 
Analysis Populations 
Three analysis populations will be evaluated including the modified intent-to-treat (mITT), 
per-protocol (PP), and safety populations, as defined below: 
mITT - patients who ingest at least 1 dose of study medication and have at least one postbaseline 
primary efficacy assessment; this population will be used for all analyses of efficacy. Patients 
will be included in the treatment group to which they were randomized regardless of treatment 
received.  
PP - patients with no significant protocol deviation that may impact the efficacy evaluations. 
Patients in PP will be included in the treatment group based on the actual treatment received.  
Safety - patients who ingest study medication; this population will be used for the safety 
analyses. Patients will be included in the treatment group based on the actual treatment received. 
8.2. 
Demographic and Baseline Characteristics 
Demographic and baseline characteristics will be summarized by treatment group using 
descriptive statistics.  
8.3. 
Efficacy Analysis 
8.3.1. 
Study Endpoints 
Primary efficacy endpoint: 
The primary efficacy endpoint will be the change from baseline to Week 12 in the OAS-M Total 
Aggression score. 
Secondary efficacy endpoints: 
The secondary efficacy endpoints will be the change from baseline to Week 12 in the following 
measures (raw score for mCGI-C and mPGI-C):  
• OAS-M Total Irritability 
• OAS-M - individual items for the Aggression and Irritability  
• 
 - IED days, IED episodes, IED severity, and patient’s distress 
• IED days - investigator assessment  
• OAS-M - number of discrete IED episodes 
• mCGI-S  
• mCGI-C  
• mPGI-S 
• mPGI-C  

 
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• SDS 
• SF-12 
• STAXI-2 
8.3.2. 
Primary Efficacy Analysis 
The primary efficacy endpoint will be the change from baseline to Week 12 in the OAS-M Total 
Aggression score, using the mITT population.  
For the primary efficacy endpoint, the null hypothesis is that there is no treatment effect and will 
be tested against the alternative that there is a treatment effect. The treatment effect will be 
analyzed using a likelihood-based linear mixed effects model repeated measures (MMRM) on 
observed data. The model will include fixed effects for treatment, visit, treatment-by-visit 
interaction, baseline-by-visit interaction, and baseline value. The OAS-M Total Aggression 
scores are highly skewed and, in general, not normally-distributed; a log-transformation will be 
applied first before using the MMRM. The analysis on the original scale will be the sensitivity 
analysis.  
8.3.3. 
Secondary Efficacy Analyses 
Secondary efficacy endpoints include the change from baseline to Week 12 for the secondary 
efficacy measures described above, and will be analyzed in a similar manner to the primary 
endpoint or as appropriate.  
Detailed analyses for the primary and secondary efficacy endpoints will be specified in the 
statistical analysis plan (SAP) prior to unblinding the study. 
8.4. 
Pharmacokinetic Analysis 
Plasma concentrations of d6-DM, Q, and certain metabolites will be measured and results will be 
summarized descriptively overall 
. Plasma concentration 
results will be used to assess the pharmacokinetic properties of d6-DM, Q, and certain 
metabolites. Additional pharmacokinetic correlations may also be performed. Additional details 
will be described in the SAP. 
8.6. 
Safety Analysis 
Safety will be assessed by the following measurements: AEs, physical and neurological 
examination, vital signs including orthostatic measurements, urine pregnancy test, clinical 
laboratory assessments (chemistry, hematology, and urinalysis), resting 12-lead ECG, 
concomitant medications, and S-STS.  
Safety analysis will consist of data summaries and tabulated by treatment group.  

 
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8.6.1. 
Adverse Events 
Adverse events will be coded using the MedDRA. The percentages of patients experiencing 1 or 
more AEs will be summarized by treatment, system organ class (SOC), deaths, non-fatal SAEs, 
AEs, AEs resulting in study discontinuation, and treatment-emergent AEs (TEAE). A TEAE is 
defined as an AE that occurred after the first dose of study drug through 30 days after the last 
dose.  
8.6.2. 
Vital Signs and Electrocardiograms  
Summary statistics of absolute values and percentage change from baseline for blood pressure 
(diastolic and systolic), heart rate, respiratory rate, and ECG parameters will be provided. All 
values outside a pre-defined normal range will be highlighted in the individual patient data 
listings. 
8.6.3. 
Clinical Laboratory Values 
Laboratory parameters will be summarized using descriptive statistics. Shift tables showing the 
pattern of change in the normal range value between screening and end of treatment as increased, 
decreased, or no change will be produced. 
8.7. 
Data and Safety Monitoring Board 
The sponsor will appoint a Data and Safety Monitoring Board (DSMB) for the periodic review 
of available study data to monitor the safety of all patients randomized into this study. 
The DSMB will include an independent group of experts that advises the sponsor and the study 
investigators. The members of the DSMB will each serve in an individual capacity and provide 
their expertise and recommendations. The primary responsibilities of the DSMB are to 
(1) periodically review and evaluate the accumulated study data for participant safety, study 
conduct, and progress, and (2) make recommendations to the sponsor concerning the 
continuation, modification, or termination of the study.  
The DSMB will consider study-specific data as well as relevant background knowledge about 
the disease, test agent, or patient population under study. The DSMB is responsible for defining 
its deliberative processes, including event triggers that would call for an unscheduled review, 
stopping guidelines, unmasking, and voting procedures prior to initiating any data review. The 
DSMB is also responsible for maintaining the confidentiality of its internal discussions and 
activities as well as the contents of reports provided to it. 
8.8. 
Interim Analysis 
An interim analysis may be performed and will be prespecified in the SAP. 
8.9. 
Sample Size Calculation 
Sample size calculation was performed based on the results of a previous 12-week study of 
fluoxetine vs. placebo in patients with IED; the observed OAS-M aggression score effect size 
was approximate 0.45 taking into account a 45% discontinuation rate.1 For the current study, the 

 
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planned sample size of 150 patients (75 per group) will have approximately 80% power to detect 
a treatment effect size of 0.45 in the comparison of AVP-786 vs. placebo with a 2-sided type I 
error α=0.05. If the effect size is assumed to be 0.50, the power is approximately 85%. 

 
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9. 
ADMINISTRATIVE PROCEDURES 
9.1. 
Institutional Review Board Approval 
The IRBs must meet the guidelines set out by the FDA and conform to local laws and customs 
where appropriate. Written IRB approval for the protocol and the signed ICF must be obtained 
and transmitted to Avanir Pharmaceuticals or representative before the study can be initiated. 
The IRB must be informed of and approve all protocol amendments. The investigator will ensure 
that this study is conducted in full conformance with local laws and according to National and 
State laws (Appendix 16 Investigator Responsibilities). The complete text of the World Medical 
Association Declaration of Helsinki is provided in Appendix 17. 
9.2. 
Informed Consent Form 
The ICF will follow the principles outlined in the current version of the Declaration of Helsinki. 
Signed informed consent must be obtained from each patient (if the patient is capable in the 
judgment of the investigator to provide informed consent) or their legally authorized 
representative prior to patient entry into the study; no screening procedure will be conducted 
until the informed consent is signed.  
The patient will be properly informed of the purpose of the study and alerted to any anticipated 
AE that may be encountered with the study medication. The patient will be provided with a copy 
of their signed ICF. 
9.3. 
Study Drug Diary 
The study drug diary will be reviewed at each double-blind study visit after baseline by clinical 
study personnel for confirmation of the number of capsules taken and the time of study drug 
dosing. The study personnel are responsible for ensuring that (1) patients properly record study 
drug dosing data into the study drug diary and (2) transcribing the study drug diary recordings 
into the eCRF. The study drug diary will be collected at each study visit after baseline, and the 
originals will be maintained at the site as source documents.  
9.4. 
Electronic Case Report Forms 
For each patient enrolled who has provided informed consent, an eCRF must be completed and 
electronically signed by the investigator to certify that the data within each eCRF are complete 
and correct. This also applies to those patients who fail to complete the study. If a patient is 
withdrawn from the study because of a treatment-limiting AE, thorough efforts should be made 
to document the outcome.  
Any site personnel delegated responsibility for data entry, query resolution, or eCRF approval 
must complete training prior to accessing the eCRF. The EDC vendor will provide user-specific 
access to the live (production) eCRF once training completion has been confirmed and the 
account has been approved by the sponsor. Any data changes in the EDC system once the data 
have been initially saved will be tracked via audit trail and will require a reason for the change. 
The audit trail will also include who made the change and a date/time stamp. 

 
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The eCRFs will be reviewed by the study monitor at the study site. Errors detected by 
subsequent in-house data review may necessitate clarification or correction of errors. All changes 
will be documented and approved by the investigator. 
All investigators will be provided with copies of the completed eCRFs for their site on a 
CD-ROM at the end of the study. 
9.5. 
Quality Assurance 
9.5.1. 
Documentation 
For each process, evaluation, or test that generates study data but is not described in the protocol 
or eCRF, a written description of the data generation procedures shall be retained in the quality 
assurance section of the study files. In the case of routine clinical diagnostic procedures, only a 
copy of the relevant certification document is required. 
9.5.2. 
Monitoring 
Throughout the study, the study monitor will make frequent contacts with the investigator. This 
will include telephone calls and on-site visits. The study will be routinely monitored to ensure 
compliance with the study protocol and the overall quality of data collected. During the on-site 
visits, the eCRFs will be reviewed for completeness and adherence to the protocol. As part of the 
data audit, source documents will be made available for review by the study monitor. The study 
monitor may periodically request review of the investigator study file to assure the completeness 
of documentation in all respects of clinical study conduct. 
The study monitor will verify that each patient has proper consent documentation from the 
patient and/or the patient’s legally authorized representative for study procedures and for the 
release of medical records to the sponsor, FDA, other regulatory authorities, and the IRB. The 
investigator or appointed delegate will receive the study monitor during these on-site visits and 
will cooperate in providing the documents for inspection and respond to inquiries. In addition, 
the investigator will permit inspection of the study files by authorized representatives of the 
regulatory agencies. 
On completion of the study, the study monitor will arrange for a final review of the study files 
after which the files should be secured for the appropriate time period. 
9.6. 
Record Retention 
To enable evaluations and/or audits from regulatory authorities or the sponsor, the investigator 
agrees to keep records, including the identity of all participating patients (sufficient information 
to link records, e.g., CRFs and hospital records), all original signed ICFs, copies of all eCRFs, 
SAE forms, source documents, and detailed records of treatment disposition, and adequate 
documentation of relevant correspondence (e.g., letters, meeting minutes, telephone call reports). 
The records should be retained by the investigator according to ICH, local regulations, or as 
specified in the Clinical Trial Agreement, whichever is longer. 

 
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If the investigator is unable for any reason to continue to retain study records for the required 
period (e.g., retirement, relocation), the sponsor should be prospectively notified. The study 
records must be transferred to a designee acceptable to the sponsor, such as another investigator, 
another institution, or the sponsor. The investigator must obtain written permission from the 
sponsor before disposing of any records, even if retention requirements have been met. 
9.7. 
Source Data 
The documents that will form the source data for the clinical study (e.g., patient charts, 
laboratory reports) must be defined and documented in the in-house study master file prior to the 
start of the study. Data on the eCRFs, which will be checked against source data during 
monitoring visits, must also be defined and documented in the in-house study master file 
including the percentage of each of the source data to be verified and the percentage of patients’ 
eCRFs to be monitored. 
9.8. 
Data Handling 
Data collected on the eCRFs will be entered into EDC system by trained site staff. Any queries 
arising from data entry will be checked with the investigator and changes approved.  
9.9. 
Guidelines for Good Clinical Practice 
Standards for GCP must be adhered to for all study-based procedures. 
9.10. 
Conditions for Amending the Protocol 
Protocol modification to ongoing studies that could potentially adversely affect the safety of 
patients or which alter the scope of the investigation, the scientific quality of the study, the 
experimental design, dosages, duration of therapy, assessment variables, the number of patients 
treated, or patient selection criteria must be made only after appropriate consultation between an 
appropriate representative of the sponsor and the investigator. 
Protocol modifications must be prepared by a representative of the sponsor or the investigator, 
and reviewed and approved by the sponsor.  
All protocol modifications must be reviewed and approved by the appropriate IRB in accordance 
with local requirements, before the revised edition can be implemented. Modifications which 
eliminate an apparent immediate hazard to patients do not require pre-approval by the IRB. 
9.11. 
Conditions for Terminating the Study 
Both the sponsor and the investigator reserve the right to terminate the study at the site at any 
time. Should this be necessary, the procedures to effect study termination will be arranged after 
review and consultation by both parties. In terminating the study, the sponsor and the 
investigator will assure that adequate consideration is given to the protection of the patient’s 
interests. 

 
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9.12. 
Confidentiality of Study Documents and Patient Records 
The investigator must assure that the patient’s anonymity will be maintained. On eCRFs or other 
documents, including audio recordings, submitted to the sponsor, patients should not be 
identified by their names but by an identification code. 
The investigator should keep a separate log of patient’s codes, names, and addresses. Documents 
not for submission to the sponsor, for example, patients’ signed ICFs, should be maintained by 
the investigator in strict confidence. 
9.13. 
Publications 
It is anticipated that a report of this study will be published in the scientific literature by the 
sponsor. The investigator will not seek to arrange for publication of any of the information or 
results from the study in any scientific journal, or other publication or by way of lecture without 
the sponsor’s prior review and written consent.  
9.14. 
Audits/Inspections 
The investigator should understand that source documents for this study should be made 
available to appropriately qualified personnel or designee from the sponsor or to health authority 
inspectors after appropriate notification. The verification of the eCRF data may be by direct 
inspection of source documents (where permitted by law) or through an interview exchange. 
The inspector from the regulatory authority will be especially interested in the following items: 
• Visits from the sponsor’s representatives 
• IRB approval 
• Study medication accountability 
• Study protocol and amendments 
• ICFs of the patient (if capable of providing ICF, according to the investigator) or 
patient’s legally authorized representative 
• Medical records supportive of eCRF data 
• Reports to the IRB and the sponsor 
• Record retention 
The sponsor will be available to help investigators prepare for an inspection. 

 
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11. 
APPENDICES 
Appendix 1: 
Appendix 2: 
Appendix 3: 
Appendix 4: 
Appendix 5: 
Appendix 6: 
Appendix 7: 
Appendix 8: 
Appendix 9: 
Appendix 10:
Appendix 11:
Appendix 12:
Appendix 13:
Appendix 14:
Appendix 15:
Appendix 16:
Appendix 17:

 
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