Residual Risk Assessment Of HIV Transmission (EP 49 EVARIST)

EVALUATION DU RISQUE RESIDUEL DE TRANSMISSION DU VIH CHEZ DES HSH TRAITES AYANT UNE CHARGE VIRALE PLASMATIQUE INDETECTABLE

The main objective of this one year multidisciplinary research is to estimate the frequency of seropositive men having sex with men (MSM) under antiretroviral therapy (ART) having an undetectable blood viral load (VL) and a detectable VL in semen.

Design: Participants'inclusion (n=150) will be done in 6 HIV hospital departments participating to the research project. To warrant feasibility and diversity of participants needed, the centers will be located in Paris and nearby suburbs. The study design is based on one blood and semen sample taken at day 0 and at day 30. Blood and semen samples will be taken in the enrolment centers. Biological and virological analyses will be performed by the laboratory of microbiology at Necker hospital, on blood and semen samples. Pharmacological analyses are planned in a subsequent study. Socio-behavioral data will be collected through a self-administered questionnaire at day 0 and day 30.

Schedule: Patients' enrolment, collection of biological samples and questionnaires will last 10 months (end of first quarter 2012). Biological and virological analyses will be performed until the end of the first semester 2012. Quantitative and socio-behavioral data will be analyzed during the third quarter 2012. Results will be released at the beginning of year 2013.

Study Overview

Detailed Description

The secondary objective is to characterize the biological and behavioral components that might influence VL discordance between blood and semen.

Background: In most cases the semen VL reflects the blood VL. However some seropositive people with an undetectable blood VL have a detectable semen VL and thus might be at risk of HIV transmission in case of unprotected sexual behaviors. Most of the previously published studies were made on rather small numbers of HIV+ heterosexual men, were cross-sectional and did not address factors that might be associated with discordant VL between blood and semen. Few studies have been performed among seropositive MSM who are one of the most at-risk populations for HIV.

Issue: The working hypothesis is that virus present into reservoirs and risky sexual behaviors might influence discordance in VL between blood and semen in MSM. Our hypothesis is that this rate might be higher among MSM than among the general population due to the existence of biological and specific factors that could lead to HIV local replication. The main reasons to address this question in MSM are i) no or very few data available in this population; ii) the possibility to measure in this population the impact of life style determinants on semen VL (high number of sexual partners; risky sexual behaviors, multi-drugs consumption…); and iii) a strong expectation from this community to have new prevention strategies and clear information about the HIV transmission risk.

Outcomes: Quantitative data analysis will allow us to evaluate the proportion of people having a detectable semen VL, its variation according to time. Socio-behavioral data analysis will allow us to describe the sexual behaviors that might influence discordance of the VL between blood and semen in HIV+ MSM. These results will provide information on the HIV residual risk of transmission in treated MSM and to better target people who might be at risk for HIV transmission in case of unprotected sexual behaviors. Describing the socio-behavioral characteristics of these people will help to define adaptated interventions in order to improve HIV prevention in MSM

Study Type

Interventional

Enrollment (Actual)

167

Phase

  • Not Applicable

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

      • Le Kremlin-Bicêtre, France
        • Jade Ghosn

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 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age ≥ 18 and
  • Able to give written consent
  • Covered by French Social Security
  • be a men and have sex with men
  • be treated with the same ARV treatment for at least 3 months
  • blood plasma have a CV undetectable (<50 copies / ml) for at least 6 months
  • accept the constraints imposed by the study, that is to say one or more masturbation in hospital

Exclusion Criteria:

  • Under protection(saving) of justice

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

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental
blood and semen sampling, specific biological exams and biobank and self administered questionnaires

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
to estimate the frequency of seropositive men having sex with men (MSM) under antiretroviral therapy (ART) having an undetectable blood viral load (VL) and a detectable VL in semen
Time Frame: up to 30 days
up to 30 days

Secondary Outcome Measures

Outcome Measure
Time Frame
to characterize the biological and behavioral components that might influence VL discordance between blood and semen
Time Frame: up to 30 days
up to 30 days

Collaborators and Investigators

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

Investigators

  • Study Director: Roland LANDMAN, Service de maladies infectieuses, VIH et Maladies Tropicales-Hopital BUCHAT
  • Study Director: Jade GHOSN, Service de médecine interne Le Kremlin Bicetre
  • Principal Investigator: David ZUCMAN, Service de médecine interne Hôpital Foch Suresnes
  • Principal Investigator: Diane PONSCARME, Service de maladies infectieuses et tropicales Hôpital St Louis
  • Principal Investigator: Agathe RAMI, Service de médecine interne Lariboisière
  • Principal Investigator: Jean-Paul VIARD, Centre de diagnostic et thérapeutique Hôtel Dieu

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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

July 1, 2011

Primary Completion (Actual)

February 1, 2012

Study Completion (Actual)

March 1, 2012

Study Registration Dates

First Submitted

July 1, 2011

First Submitted That Met QC Criteria

August 9, 2011

First Posted (Estimated)

August 10, 2011

Study Record Updates

Last Update Posted (Actual)

April 23, 2026

Last Update Submitted That Met QC Criteria

April 21, 2026

Last Verified

December 1, 2012

More Information

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.

Clinical Trials on HIV Infection

Clinical Trials on blood and semen sampling, specific biological exams and biobank and self administered questionnaires

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