Study Evaluating the Safety and Efficacy of Islatravir in Combination With Lenacapavir in Virologically Suppressed People With HIV

A Phase 2 Randomized, Open-Label, Active-Controlled Study Evaluating the Safety and Efficacy of an Oral Weekly Regimen of Islatravir in Combination With Lenacapavir in Virologically Suppressed People With HIV

The primary objective of this study is to evaluate the efficacy of oral weekly islatravir (ISL) in combination with lenacapavir (LEN) in virologically suppressed people with HIV (PWH) at Week 24.

Key Inclusion Criteria:

• Received bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) for ≥ 24 weeks at screening.
• Documented plasma human immunodeficiency virus type 1 (HIV-1) ribonucleic acid (RNA) < 50 copies/mL (or undetectable HIV-1 RNA level according to the local assay being used if the limit of detection is ≥ 50 copies/mL) for ≥ 24 weeks before and at screening.
• Plasma HIV-1 RNA < 50 copies/mL at screening.

Key Exclusion Criteria:

• History of prior virologic failure while receiving treatment for HIV-1.

• Prior use of, or exposure to, islatravir (ISL) or lenacapavir (LEN).

• Active, serious infections requiring parenteral therapy < 30 days before randomization.

• Active or occult hepatitis B virus (HBV) coinfection, defined as hepatitis B core antibody (HBcAb) positive, hepatitis B surface antigen (HBsAg) positive, or HBV deoxyribonucleic acid (DNA) positive as determined by the central laboratory.

• Active hepatitis C virus (HCV) coinfection, defined as detectable HCV RNA.

• Any of the following laboratory values at screening:

  • Creatinine clearance (CLcr) ≤ 30 mL/min according to the Cockcroft-Gault formula

• CD4+ T-cells < 200 cells/mm^3 (Cohort 1); CD4+ T-cells < 350 cells/mm^3 (cohort 2).

• Absolute lymphocyte count < 900 cells/mm^3 (cohort 2).

• Individuals of childbearing potential (as defined in protocol) who have a positive serum pregnancy test at screening or positive urine and serum pregnancy tests at Day 1 prior to study drug administration.

• Individuals who plan to continue breastfeeding during the study.

• Documented historical or screening resistance reports showing nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs) or non-nucleoside/nucleotide reverse transcriptase inhibitors (NNRTIs) resistance mutations in reverse transcriptase, including M184V/I (Cohort 2).

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