Impact of Long-acting Injectable Cabotegravir for HIV PrEP in MSM in France.

NCT ID: NCT06273943

Last Updated: 2024-02-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

322 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-01

Study Completion Date

2026-10-30

Brief Summary

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The purpose of this study is to evaluate if offering long-acting injectable cabotegravir (CAB-LA) as an additional HIV prevention choice among oral PrEP-experienced men who have sex with men (MSM) in France can significantly increase the sustained PrEP use over time and the PrEP coverage of at-risk sexual risk behaviors.

Detailed Description

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Long-acting injectable cabotegravir (CAB-LA) is a promising agent to address the issue of uptake, adherence, and persistence among oral PrEP users who faced adherence challenges. However, the potential benefits of offering CAB-LA as an additional prevention option for MSM adherent to oral PrEP has yet to be demonstrated. We hypothesize that offering CAB-LA as an additional prevention option for MSM already using oral PrEP can mitigate PrEP fatigue over time, resulting in enhanced PrEP use and increased coverage of at-risk sexual intercourses.

This study is designed as a pragmatic, open-label, multicenter, parallel-group, randomized controlled clinical trial aiming to enroll MSM using PrEP for at least 6 months. Participants will be randomly assigned in a 1:1 ratio to remain on their current oral PrEP regimen with daily and/or on-demand TDF/FTC (Control arm) or to switch to a CAB-LA based PrEP (Intervention arm). Participants will be enrolled over 6 months and followed for two years. The trial will be conducted at 9 clinical sites in the Paris region. The primary objective of the study will be to compare the sustained PrEP use over time among participants randomized to CAB-LA vs. oral TDF/FTC based PrEP at Months 12 and 24. The main secondary objectives will aim to evaluate the PrEP coverage of at-risk sexual intercourses, the change from baseline in sexual risk behaviors, the safety of the drugs, and the HIV incidence.

The study protocol includes three ancillary studies:

* Social science: Focus groups will be conducted among study participants to investigate their perceptions of CAB-LA, motivations for using it, adherence and persistence, changes in HIV risk perception, and impact on sexual satisfaction. Additionally, this study will assess healthcare providers' perceptions, barriers, and facilitators regarding CAB-LA implementation for PrEP.
* Rectal tissue HIV-1 permissibility: This study aims to evaluate the protection from HIV-1 at different time points after oral and injectable CAB initiation using a model of Ex-vivo rectal tissue and PBMCs infection with HIV-1.
* Medico-economics analysis: The main objective of this study is to establish cost-effectiveness performance benchmarks for CAB-LA in HIV PrEP.

Conditions

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Prevention

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Participants will be randomly assigned in a 1:1 ratio to remain on their current oral PrEP regimen with daily and/or on-demand TDF/FTC (Control arm) or to switch to a CAB-LA based PrEP (Intervention arm).
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Oral PrEP with daily or on-demand TDF/FTC

Participants randomly assigned to the oral PrEP regimen will be instructed to take a single dose combination of TDF 300 mg + FTC 200 mg (TDF/FTC), either daily or on-demand, according to their preferences.

Group Type ACTIVE_COMPARATOR

Tenofovir disoproxil/Emtricitabine 300mg/200mg fixed-dose combination tablets, for oral use

Intervention Type DRUG

* Daily regimen: a single tablet of TDF/FTC every 24 hours, regardless of sexual activity. If PrEP was stopped, resume with two pills of TDF/FTC followed by one pill every 24 hours.
* On-demand regimen: a loading dose of two pills of TDF/FTC 2 to 24 hours before sexual intercourse, a third pill 24 hours after the first drug intake and a fourth pill 24 hours later. In case of daily sexual intercourse, participants will be instructed to take one pill per day until the last sexual intercourse, then to take the two post-exposure pills. If the last dose of TDF/FTC was taken less than one week prior, a leading dose with a single pill of TDF/FTC is sufficient.

Rectal Biopsies

Intervention Type PROCEDURE

This intervention concerns only participants involved in the rectal tissue HIV-1 permissibility sub-study.

The proctologist collects ten rectal biopsies at different time points before and after PrEP initiation according to the randomization arm.

Long-acting injectable PrEP with cabotegavir

Participants assigned to the cabotegravir group will initially take a 30mg oral tablet of cabotegravir daily for a four-week period. Following this initial phase, they will receive 13 intramuscular injections of 600mg (3mL) long-acting injectable cabotegravir (CAB-LA) administered every two months after an initial loading dose given one month after the last oral tablet.

Group Type EXPERIMENTAL

Cabotegravir Tablets, for oral use.

Intervention Type DRUG

Participants randomly assigned to the cabotegravir arm will be instructed to take by mouth a single tablet of cabotegavir 30mg once daily for four weeks.

Cabotegravir Extended-Release Injectable Suspension, for intramuscular use.

Intervention Type DRUG

Participants will receive 600mg (3mL) CAB LA injections intramuscularly at Month 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 and 24. The injections will be performed in the gluteal muscle by trained healthcare providers at study sites.

Rectal Biopsies

Intervention Type PROCEDURE

This intervention concerns only participants involved in the rectal tissue HIV-1 permissibility sub-study.

The proctologist collects ten rectal biopsies at different time points before and after PrEP initiation according to the randomization arm.

Interventions

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Cabotegravir Tablets, for oral use.

Participants randomly assigned to the cabotegravir arm will be instructed to take by mouth a single tablet of cabotegavir 30mg once daily for four weeks.

Intervention Type DRUG

Cabotegravir Extended-Release Injectable Suspension, for intramuscular use.

Participants will receive 600mg (3mL) CAB LA injections intramuscularly at Month 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 and 24. The injections will be performed in the gluteal muscle by trained healthcare providers at study sites.

Intervention Type DRUG

Tenofovir disoproxil/Emtricitabine 300mg/200mg fixed-dose combination tablets, for oral use

* Daily regimen: a single tablet of TDF/FTC every 24 hours, regardless of sexual activity. If PrEP was stopped, resume with two pills of TDF/FTC followed by one pill every 24 hours.
* On-demand regimen: a loading dose of two pills of TDF/FTC 2 to 24 hours before sexual intercourse, a third pill 24 hours after the first drug intake and a fourth pill 24 hours later. In case of daily sexual intercourse, participants will be instructed to take one pill per day until the last sexual intercourse, then to take the two post-exposure pills. If the last dose of TDF/FTC was taken less than one week prior, a leading dose with a single pill of TDF/FTC is sufficient.

Intervention Type DRUG

Rectal Biopsies

This intervention concerns only participants involved in the rectal tissue HIV-1 permissibility sub-study.

The proctologist collects ten rectal biopsies at different time points before and after PrEP initiation according to the randomization arm.

Intervention Type PROCEDURE

Other Intervention Names

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VOCABRIA APRETUDE TRUVADA

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 years.
* Cisgender men who have sex with men.
* Have taken oral TDF/FTC based PrEP during the past 6 months, either daily or on-demand, with a documented PrEP prescription.
* Agreeing to be contacted personally by telephone (call, SMS) or e-mail.
* Person affiliated with or a beneficiary of a social security scheme (article L1121-11 of the Public Health Code).
* Informed and written consent, signed by the person and the investigator on the day of inclusion, at the latest, and before any examination carried out within the setting of the study (article L1122-1-1 of the Public Health Code).


* Positive HIV test result at screening or enrollment visit, even if HIV infection is not confirmed.
* Symptoms and/or clinical signs consistent with an acute HIV infection.
* History of seizure disorder.
* Ongoing Post-Exposure Prophylaxis (PEP) for HIV.
* Last titer of hepatitis B surface antibody (anti-HBs) \< 10 mIU/mL.
* Concomitant use of antimycobacterial (rifampin, rifapentine) or enzyme-inducing anticonvulsants (carbamazepine, oxcarbazepine, phenobarbital, phenytoin, etc.).
* Participants with severe hepatic impairment (Class C) as determined by Child-Pugh classification.
* Participants having a non-treated chronic HCV infection.
* Current or chronic history of liver disease or known hepatic or biliary abnormalities.
* Aspartate aminotransferase (ASAT) or alanine aminotransferase (ALAT) \> 5-fold the upper normal limit (UNL).
* Creatinine clearance lower than 50mL/min.
* History of chronic renal disease, osteoporosis or osteopenia.
* Inflammatory skin conditions which compromise the safety of intramuscular (IM) injections.
* Known thrombocytopenia or any other known bleeding disorder, which would contraindicate IM injection.
* Treatment with oral anticoagulant (antiplatelet agents are allowed).
* Known or suspected allergy to study product components.
* Surgically placed buttock implants.
* Planned trip abroad of more than 2 consecutive months or planned move outside the Ile de France region.
* Individuals who, upon the investigator's judgement, will not be likely to comply the clinical trial procedures, or with any condition incompatible with study participation.
* Person participating in another research study with an exclusion period still in progress at inclusion. Participants in the ANRS PREVENIR study are authorized to participate in the ANRS CABOPrEP trial.
* Person under guardianship or curatorship or deprived of liberty by judicial or administrative decision.
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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ANRS, Emerging Infectious Diseases

OTHER_GOV

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jean-Michel Molina, Professor

Role: PRINCIPAL_INVESTIGATOR

Saint-Louis Hospital, Paris, France

Locations

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Hôpital Hôtel Dieu

Paris, Île-de-France Region, France

Site Status

Hôpital Lariboisière

Paris, Île-de-France Region, France

Site Status

Hôpital Saint Louis

Paris, Île-de-France Region, France

Site Status

Hôpital Saint Antoine

Paris, Île-de-France Region, France

Site Status

Hôpital La Pitié Salpêtrière

Paris, Île-de-France Region, France

Site Status

Hôpital Necker

Paris, Île-de-France Region, France

Site Status

Hôpital Bichat

Paris, Île-de-France Region, France

Site Status

Hôpital Tenon

Paris, Île-de-France Region, France

Site Status

Countries

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France

Central Contacts

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Geoffroy LIEGEON, Dr

Role: CONTACT

312-483-6988 ext. +1

Other Identifiers

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2024-510678-25

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

ANRS 0410s CABOPrEP

Identifier Type: -

Identifier Source: org_study_id

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