Sentinel Node Detection in Cervical Cancer

Study Overview
=================
Brief Summary
-----------------
Evaluation of sensitivity of Sentinel lymph nodes for detecting nodal metastases in cervical cancer

Detailed Description
-----------------
Consecutive women with stage 1a2-2a1 cervical cancer scheduled for surgery will be approached for eligibility by defined criteria. Sentinel nodes will be detected by a combined use of Indocyanine green and Tc99 radiocolloid ( first 75 patients) and for the continuation with either the combined use or the best performing of those tracers. Technical success rates, adverse events (related study intervention and overall) sensitivity and negative predictive values will be estimated. An interim analyse will be performed after 34 node positive patients based on the Fleming two stage analyse. The null hypothesis of sensitivity of 85% will be tested against an estimated sensitivity of 95%. At this stage the study may be closed for futility, closed as hull hypothesis is rejected or continued to reach another 28 node positive patients. As a full pelvic lymphadenectomy will be performed after detection of sentinel nodes patient will act ast their own controls.

Official Title
-----------------
Sentinel Node Detection in Cervical Cancer

Conditions
-----------------
Sentinel Lymph Node Biopsy

Intervention / Treatment
-----------------
* Procedure: Sentinel node detection in cervical cancer


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Women of age 18 years and older at the time of informed consent. Women with a pathologically proven cervical carcinoma of any histologic subtype, clinically stage 1a2- 2a1 planned for primary surgery Absence of any exclusion criteria Exclusion Criteria: Non consenting patients Ongoing pregnancy Inability to understand written and/or oral study information Who performance status III or more Previous lower limb lymphedema Surgical contraindication to a laparoscopic approach or lymphadenectomy at surgeons discretion. Anesthesiologic contraindication to a laparoscopic approach at the anesthetist's discretion Locally advanced disease or intraabdominal/distant metastases at preoperative CT, MRI or ultrasonography Radiologically suspect pelvic nodal metastatic disease according to the RECIST criteria (>= 1 node with >=16 mm short axis diameter) Allergy to Iodine Patients with a known liver disease Patients with a significant bleeding disorder or mandatory antithrombotic treatment.

Ages Eligible for Study
-----------------
Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
-----------------
Female

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Interventional Model Description: prospective cohort study
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: prospective cohort study<br>Prospective cohort study with detection of sentinel lymph nodes followed by a full pelvic lymphadenectomy. Patients will act as their own controls. The intervention is the detection and removal of sentinel lymph nodes | Procedure: Sentinel node detection in cervical cancer<br>* The study intervention is the injection of tracer followed by detection and removal of sentinel lymph nodes<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sentinel node detection in cervical cancer; Sensitivity and negative predictive values for identifying pelvic nodal disease, See detailed study protocol | Detection of Sentinel nodes followed by full pelvic lymphadenectomy | 4-5 years |