A Prolongation of a Clinical Study to Evaluate the Efficacy of an Aqueous Gel Containing 2% (w/w) of Cidofovir, Directly Applied on the Cervix Exhibiting High Grade Squamous Intraepithelial Lesions.

November 25, 2016 updated by: Catherine Vanpachterbeke, Brugmann University Hospital

A Prolongation of Phase II Clinical Study to Evaluate the Efficacy of an Aqueous Gel Containing 2% (w/w) of Cidofovir, Directly Applied on the Cervix Exhibiting High Grade Squamous Intraepithelial Lesions

The infections of high grade induced by the human papilloma viruses cause precancerous lesions of the cervical epithelium. The progression of these lesions can lead to the onset of cervical cancer. To reduce the risk of cancer lesions classified as 'cervical squamous intraepithelial neoplasia 2' (CIN2) and 'cervical squamous intraepithelial neoplasia 3' (CIN3), the standard treatment is the conisation of the cervix. This surgery can lead to complications such as infertility or a risk of preterm birth, hence the need to move towards a non-surgical alternative therapy.

The colvir clinical trial was a phase-II, multi center, randomized, double blind, efficacy study of an aqueous gel containing 2% (w/w) cidofovir, administrated directly on cervix exhibiting high grade squamous intraepithelial lesion (CIN 2 and 3).

This clinical trial is a prolongation of the colvir trial, in order to

  • assess the long term histological and virological evolution (24 months) of 3 g of 2% (w/w) cidofovir gel, administrated directly on cervix exhibiting high grade intraepithelial neoplasia after complete response, partial response or response failure at the end of the Colvir study.
  • assess the long term (24 months) rate of recurrence of histological lesions of the Colvir patients after conisation, in both placebo and treatment groups.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

36

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belgium
      • Brussels, Belgium, 1020
        • CHU Brugmann Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 50 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Women who participated in the COLVIR study and received complete treatment

Exclusion Criteria:

  • Women from the Colvir study who received incomplete treatment

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cidofovir
Women receiving an aqueous gel containing 2% (w/w) cidofovir, administrated directly on cervix exhibiting high grade squamous intraepithelial lesion (CIN 2 and 3).
Drug: Cidofovir

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
change in biopsy conclusions (treatment success or not)
Time Frame: 24 months after initial treatment
A gynecological examination will be done, including colposcopy. Cervical sampling for virology will be taken and sent to Riatol laboratory. A biopsy will be taken in presence of colposcopic cervical squamous intraepithelial neoplasia (CIN2-3) lesions, or in case of colposcopic doubt lesions, or in case of persistence (after 6 months) of colposcopic CIN1 lesion or if the last cytology was a high grade squamous intraepithelial lesion (HSIL) cytology, or if the last cytology suspected glandular lesions, or if the two last cervical smears were low-grade intraepithelial lesion (LSIL) cytologies with presence of high risk human papillomavirus (HPV).The biopsy fixation, HE (eosin-hematoxylin) staining and P16 + Ki67 staining will be done according to a validated procedure. Biopsy slides will be send to the central lab for immunological and histological reading (three pathologic experts).
24 months after initial treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
HPV viral load
Time Frame: 24 months after initial treatment
Cervical sampling for virology will be taken and send to Riatol laboratory.
24 months after initial treatment
HPV genotype
Time Frame: 24 months after initial treatment
Cervical sampling for virology will be taken and send to Riatol laboratory.
24 months after initial treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Brugmann University Hospital

Investigators

  • Principal Investigator: Catherine Vanpachterbeke, MD, CHU Brugmann

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2013

Primary Completion (Actual)

April 1, 2016

Study Completion (Actual)

April 1, 2016

Study Registration Dates

First Submitted

November 15, 2016

First Submitted That Met QC Criteria

November 25, 2016

First Posted (Estimate)

November 30, 2016

Study Record Updates

Last Update Posted (Estimate)

November 30, 2016

Last Update Submitted That Met QC Criteria

November 25, 2016

Last Verified

November 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CHUB-POST-Colvir II

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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