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BI-LIGHTInterventional, Multicenter, Open-label, Randomized, Non-comparative Trial Evaluating the Safety, in Terms of HBV Virological Control At 96 Weeks, of 2 Antiviral Treatment Relief Strategies, in Patients Co-infected with the HIV-1 and HBV Viruses

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What is being tested

TDF - 245mg or TAF -25mg associated to 3TC - 300mg or FTC - 200mg and a NNRTI or PI/r or INSTI

+ Dual therapy with 3TC in combination with DTG or ritonavir-boosted Darunavir (rDVR)

Drug
Who is being recruted

Blood-Borne Infections+11

+ Urogenital Diseases

+ Genital Diseases

Over 18 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 2
Interventional
Study Start: February 2025
See protocol details

Summary

Principal SponsorANRS, Emerging Infectious Diseases
Study ContactFatoumata COULIBALYMore contacts
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: February 1, 2025

Actual date on which the first participant was enrolled.

The study focuses on patients who have both HIV-1 and hepatitis B virus (HBV) infections and have been successfully managing these conditions with a continuous triple therapy. The main goal is to understand if it is safe to reduce their treatment while still keeping the hepatitis B virus under control over a period of 96 weeks. This is important because managing treatment can be challenging, and finding safe ways to reduce medication could make it easier for patients to maintain their health and potentially reduce side effects from long-term medication use. Participants in this study will follow one of two different strategies to decrease their current antiviral treatment. Researchers will closely monitor these patients to ensure that the hepatitis B virus remains under control during the study period. While the study does not detail the specific risks or benefits, it aims to provide valuable insights into the safety of reducing treatment for those living with both HIV and HBV, potentially leading to improved strategies for managing these co-infections.

Official TitleInterventional, Multicenter, Open-label, Randomized, Non-comparative Trial Evaluating the Safety, in Terms of HBV Virological Control At 96 Weeks, of 2 Antiviral Treatment Relief Strategies, in Patients Co-infected with the HIV-1 and HBV Viruses
NCT06338826
Principal SponsorANRS, Emerging Infectious Diseases
Study ContactFatoumata COULIBALYMore contacts
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

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

140 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Over 18 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Blood-Borne InfectionsUrogenital DiseasesGenital DiseasesCommunicable DiseasesImmunologic Deficiency SyndromesImmune System DiseasesInfectionsRetroviridae InfectionsRNA Virus InfectionsSexually Transmitted DiseasesVirus DiseasesSexually Transmitted Diseases, ViralHIV InfectionsLentivirus Infections

Criteria

Inclusion Criteria: 1. HIV-1-HBV co-infection (positive HIV-1 serology associated with 2 positive HBsAg serologies within more than 6 months); 2. Age ≥ 18 years 3. Fibroscan less than 6 months \< 9kPa 4. Current daily antiretroviral tritherapy not modified for ≥ 12 months must including tenofovir disoproxil fumarate (TDF) 245mg or tenofovir alafenamide fumarate (TAF -25mg) associated to lamivudine (3TC - 300mg) or emtricitabine (FTC - 200mg) and a NNRTI or PI/r or INSTI to choose from * NNRTI = efavirenz, rilpivirine, etravirine, doravirine * PI/r = atazanavir/r ou darunavir/r * INSTI = bictegravir, dolutegravir, elvitegravir/cobicistat, raltegravir; 5. Absence of documented HBV and HIV genotypic resistance compromising virologic control of any of the maintenance strategies. Patients with no genotypic history may be included); 6. HIV CV \< 50cp/ml for ≥ 2 years (only 1 annual blip allowed if HIV CV \< 200cp/ml and previous and subsequent viral loads are undetectable); 7. HBV CV \< 10 IU/ml for ≥ 2 years (only 1 annual blip allowed if HBV CV \< 200IU/ml and if previous and subsequent viral loads are undetectable); 8. Have ≥ 3 available measurements of HIV CV \< 50cp/ml and HBV CV \< 10 IU/mL over the past 24 months (including that of pre-inclusion); 9. CD4 lymphocytes \> 250/mm3 at pre-inclusion; 10. ALT \< 3N at pre-inclusion; 11. For women of childbearing potential, negative pregnancy test and commitment to use effective contraception throughout the trial; 12. Person affiliated with or benefiting from a social security system; 13. Free, informed, written consent, signed by the person and the investigator at the latest on the day of inclusion and before any examination carried out as part of the study (article L1122-1-1 of the Public Health Code) Exclusion Criteria: 1. HIV-2 infection; 2. HIV and/or HBV genotype not compatible with dual therapy DTG-3TC or DRVr-3TC; 3. HBeAg+; 4. Fibrosis history at stage F3-F4 in pre-therapy evaluated by PBH, fibrotest and/or fibroscan with a value of Elastometry ≥ 9kPa; 5. Chronic active viral hepatitis C (HCV RNA positive); 6. Delta co-infection; 7. Alcohol consumption \> 14 units/week for women and 21 units/week for men; 8. Current treatment with chemo- or immunotherapy (including interferon or interleukins); 9. Active opportunistic infection or acute treatment for opportunistic infection; 10. Any condition (drug use, neurological, neuropsychiatric, etc.) that, in the judgment of the investigator, may compromise patient compliance and adherence to the protocol; 11. Pregnant or breastfeeding woman or refusal of contraception; 12. Major incapacity, legal protection, guardianship or curatorship

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

2 intervention groups are designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Experimental
\- Arm 2 (T4): Relief from previous triple antiviral therapy (containing TDF or TAF) on 4 out of 7 consecutive days

Group II

Experimental
Switch from prior triple antiviral therapy (containing TDF or TAF) to continuous dual therapy without TDF or TAF but including 3TC in combination with Dolutegravir (DTG) or ritonavir-boosted Darunavir (rDVR

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
This study has no location dataSave this study to your profile to know when the location data is available.
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