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HIV InfectionMULTIVIR2025NCT06842706

Prevalence of Drug-resistant Hiv-1 Strains in Patients Experiencing Virologic Failure. (MULTIVIR2025)

An observational study of HIV Infection, run by ANRS, Emerging Infectious Diseases.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

In this cross-sectional, national and multicenter study, the main objective is to determine the prevalence of multi-drug resistant viruses (i.e., viruses that are resistant or possibly resistant to at least one antiretroviral drug from four different therapeutic classes: NRTI, NNRTI, PI, INSTI) among people with HIV 1… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
HIV Infection
How many people
800 participants
Where
No sites listed yet
Study dates
Apr 2025to Mar 2026
How long will I take part?
1 Day
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Population of people living with HIV (PLHIV) in virological failure, the proportion of participants with virus resistant or possibly resistant to at least one antiretroviral agent from 4 different therapeutic classes: nucleoside reverse transcriptase inhibitor (NRTI), non-nucleoside reverse trancriptase inhibitor (NNRTI), protease inhibitor (PI) and integrase inhibitor (INSTI).

Who may be able to join

  • Patient (male or female) 18 years of age or older.
  • Patient who has given his or her consent to participate in the study.
  • Patient on antiretroviral therapy for at least six months, with a plasma viral load (VL) greater than 50 copies/mL on at least two consecutive measurements.

Who cannot join

  • Patients opposed to the use of their data.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

About this study

Official title: Prevalence of Drug-resistant Hiv-1 Strains in Patients Experiencing Virologic Failure.(MULTIVIR2025)

In this cross-sectional, national and multicenter study, the main objective is to determine the prevalence of multi-drug resistant viruses (i.e., viruses that are resistant or possibly resistant to at least one antiretroviral drug from four different therapeutic classes: NRTI, NNRTI, PI, INSTI) among people with HIV 1 (PWH) experiencing virological failure.

Read the detailed description

Detailed Description:

This is a cross-sectional, national and multicenter study with retrospective and prospective data collection. The study will be conducted in all French virology laboratories that participated in the last quality control for HIV genotypic resistance testing conducted by the ANRS MIE network (n = 42).

Study population All patients treated with antiretrovirals and experiencing virological failure (defined as two consecutive viral loads, at least two weeks apart, greater than 50 copies/mL) can be included in this study.

The study will run for twelve months, with a planned start in 2025. During six months, virologists will be asked to identify all patients meeting the inclusion criteria until they reach 20 patients (for centers following less than 2000 PLWHA) or 40 patients (for centers following more than 2000 PLWHA). Genotypic resistance testing will be performed for all these patients, as recommended by French guidelines. Genotypic resistance testing will always include the amplification of the reverse transcriptase (RT), protease (PR) and integrase (INT), whereas the amplification of gp120, gp41 and/or capsid will only be performed in patients receiving maraviroc, enfuvirtide or lenacapavir, respectively.

Genotypic resistance testing will be performed in each local laboratory, using Sanger or high-throughput sequencing.

Sample size It is estimated that the proportion of patients with multi-drug resistant viruses is between 1 and 5% in this population. Thus, the aim is to include at least 500 patients, which would allow to determine the proportion of multi-drug resistant viruses with an accuracy of 1 to 2%.

With at least 30 participating centers, an expected number of 800 patients should be included. Given the threshold used to define virological failure (50 copies/mL), it is expected that genotypic resistance testing will not be successful in a number of cases. Assuming that all patients with virological failure have viral loads between 51 and 200 copies/mL, and that the success rate for genotypic resistance testing is 63%, the number of patients for whom we would have genotypic data would be 504.

Data collection The virology laboratories will send the list of eligible patients to the associated clinical centers, according to their usual data transfer procedure, so that clinicians can inform the participants and obtain their informed consent. An information form will also be distributed to participants.

A unique identification code will be assigned to each patient that have agreed to this study. An electronic case report form will be used to collect genotypic, clinical and demographic data.

Data analysis Identification of drug resistance-associated mutations will be performed using two different algorithms: Stanford HIVDB (version 9.7, November 2024) and HIV French Resistance (version 35, April 2024).

Conditions
HIV Infection
Keywords
HIV, drug resistance, antiretrovirals, multi-drug resistant, virological failure
Medical subject headings
HIV Infections

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Drug resistance-associated mutations are those defined in the current ANRS algorithm (https://hivfrenchresistance.org/hiv-french-resitance-tables-of-rules/) and in the current Stanford algorithm (http://hivdb.stanford.edu) at the time of analysis.

    Genotypic resistance to an antiretroviral drug will be interpreted using these two algorithms. Resistance to a therapeutic class will be defined as a resistance, or possible resistance, to all drugs in the class.

    Measured: Recruitment period: 6 months ·Participation period per participant: 1 day (no follow-up visit) ·Total research period: 12 months · Provisional start date: April 1, 2025 · Provisional end da

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Feb 2025
  2. Study startApr 2025 (estimated)
  3. Primary completionMar 2026 (estimated)
  4. Study completionMar 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Other
Enrolment
800 participants (estimated)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT06842706
Sponsor's protocol ID
ANRS0788s MULTIVIR2025
Acronym
MULTIVIR2025
Status last verified
Feb 2025
First submitted
19 Feb 2025
Last updated
26 Feb 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of HIV Infection, run by ANRS, Emerging Infectious Diseases.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 26 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Mariam GHARIB (0144236442, mariam.gharib@inserm.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Drug resistance-associated mutations are those defined in the current ANRS algorithm (https://hivfrenchresistance.org/hiv-french-resitance-tables-of-rules/) and in the current Stanford algorithm (http://hivdb.stanford.edu) at the time of analysis. (time frame: Recruitment period: 6 months ·Participation period per participant: 1 day (no follow-up visit) ·Total research period: 12 months · Provisional start date: April 1, 2025 · Provisional end da). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Feb 2025.

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