A Phase 3, Randomized, Active-Controlled, Double-Blind Clinical Study to Evaluate a Switch to Doravirine/Islatravir (DOR/ISL 100 mg/0.25 mg) Once-Daily in Participants With HIV-1 Who Are Virologically Suppressed on Bictegravir/Emtricitabine/Tenofovir Alafenamide (BIC/FTC/TAF)

8591A-052

The primary objectives of this study are to evaluate the antiretroviral activity of a switch to DOR/ISL compared with continued BIC/FTC/TAF at Week 48; and to evaluate the safety and tolerability of a switch to DOR/ISL compared with continued BIC/FTC/TAF, through Week 48. The primary hypotheses are that (1) DOR/ISL is non-inferior to continued BIC/FTC/TAF, as assessed by the percentage of participants with HIV-1 ribonucleic acid (RNA) ≥50 copies/mL at Week 48, with a margin of 4 percentage points used to define non-inferiority; and (2) DOR/ISL is superior to BIC/FTC/TAF, as assessed by the percentage of participants with HIV-1 RNA ≥50 copies/mL at Week 48.

2023-02-17

2024-11-13

2025-10-15

Active (not recruiting)

Early phase I

501

The key inclusion and exclusion criteria include but are not limited to the following: Inclusion Criteria: * Is HIV-1 positive with plasma HIV-1 RNA \<50 copies/mL * Has been receiving BIC/FTC/TAF therapy with documented viral suppression (HIV-1 RNA \<50 copies/mL) for ≥3 consecutive months prior to providing documented informed consent and has no history of prior virologic treatment failure on any past or current regimen * Female is not a participant of childbearing potential (POCBP); or if a participant of childbearing potential, not pregnant or breastfeeding, and is willing to use an acceptable contraceptive method or abstain from heterosexual intercourse for study duration Exclusion Criteria: * Has HIV-2 infection * Has a diagnosis of an active acquired immunodeficiency syndrome (AIDS)-defining opportunistic infection within 30 days prior to screening * Has active hepatitis B virus (HBV) infection * Has chronic hepatitis C virus (HCV) infection with laboratory values consistent with cirrhosis * Has a history of malignancy ≤5 years prior to providing documented informed consent except for adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, or cutaneous Kaposi's sarcoma * Is taking or is anticipated to require systemic immunosuppressive therapy, immune modulators, or strong and moderate cytochrome P450 3A (CYP3A ) inducers * Has a documented or known virologic resistance to DOR * Has taken long-acting HIV therapy at any time (e.g., cabotegravir, lenacapavir) * Is currently participating in or has participated in a clinical study and received (or is receiving) an investigational compound or device from 45 days prior to Day 1 through the study treatment period except those currently enrolled in the comparator arm of an ongoing DOR/ISL study

{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE3'], 'designInfo': {'allocation': 'RANDOMIZED', 'interventionModel': 'PARALLEL', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'DOUBLE', 'whoMasked': ['PARTICIPANT', 'INVESTIGATOR']}}, 'enrollmentInfo': {'count': 501, 'type': 'ESTIMATED'}}

2023-10-12