A Study of GS-3242 in Combination With Lenacapavir Versus Biktarvy in Virologically Suppressed People With HIV-1

What this study involves

The registry says this study is recruiting. Individual locations may have different availability.

Study type

Interventional

Phase

Phase 2

Age range

18 years - Not specified

Sex eligible

All sexes

Healthy volunteers

Not accepted

Participants

175 Estimated

These are starting points, not an eligibility decision. The research team must review the full requirements.

About the research

The study will have two parts: Part A and Part B. In Part A, the goal of the study is to compare the effectiveness of switching to the study drugs GS-3242 plus Lenacapavir (LEN) versus continuing Biktarvy (bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF)), in virologically suppressed people with HIV-1 (PWH) in treatment Group 1, 2 and 3 at Week 35. In Part B the goal of the study is to compare the effectiveness of switching to the study drugs, GS-3242 and LEN versus continuing B/F/TAF in Groups 4 and 3 at Week 26.

The primary objective of part A is to evaluate the efficacy of switching to intramuscular (IM) GS-3242 plus IM LEN versus continuing on B/F/TAF PWH who are virologically suppressed in treatment Groups 1, 2, and 3 at Week 35 and Part B is to evaluate the efficacy of switching to IM GS-3242 plus IM LEN versus continuing on B/F/TAF in PWH who are virologically suppressed in Treatment Groups 4 and 3 at Week 26.

Who may be able to participate?

The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.

Key Inclusion Criteria:

• Documented human immunodeficiency virus type 1 (HIV-1) ribonucleic acid (RNA) \< 50 copies/mL for ≥ 6 months before screening.
• Plasma HIV-1 RNA levels \< 50 copies/mL at screening.
• Receiving bictegravir/emtricitabine/tenofovir alafenamide (coformulated; Biktarvy®) (B/F/TAF) for ≥ 6 months prior to screening.
• No documented resistance to GS-3242 (integrase mutation Q148H/K/R plus at least 2 of the following integrase mutations: L74I/M, T97A, E138A/K/T, or G140A/C/S).

Key Exclusion Criteria:

• Prior use of, or exposure to GS-3242 or LEN.
• History of virologic failure while on an integrase strand transfer inhibitor (INSTI)-based regimen.
• Prior use of any long-acting parenteral antiretroviral therapy (ART) medications such as monoclonal antibodies or broadly neutralizing antibodies targeting HIV-1, injectable cabotegravir (including oral cabotegravir lead-in), or injectable rilpivirine.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Treatment, groups and participation

The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.

Assignment

Random assignment

Masking

No masking

What researchers are measuring

Outcome measures describe what is being studied. They are not proof that a treatment works.

Primary measures

Secondary measures

Research locations (59)

The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.

59 locations

Study team and timeline

Lead sponsor

Gilead Sciences

Study start

Jun 15, 2026 Actual

Primary completion

2027-08 Estimated

Study completion

2033-04 Estimated

First posted

Jun 12, 2026 Actual

Last updated

Nov 10, 2026 Actual

Official study contacts