Study Evaluating Pharmacokinetics (PK), Safety, and Efficacy of Cobicistat-boosted Atazanavir (ATV/co) or Cobicistat-boosted Darunavir (DRV/co) and Emtricitabine/Tenofovir Alafenamide (F/TAF) in HIV-1 Infected, Virologically Suppressed Pediatric Par

• Status: Recruiting
• Trial end date: 2026-04-01
• Target enrollment: 0
• Participant gender: All

Summary

Cohort 1:

The primary objectives are:

• To evaluate the steady-state pharmacokinetics (PK) of Atazanavir (ATV) and Darunavir (DRV) and confirm the dose of Cobicistat-boosted Atazanavir (ATV/co) or Cobicistat-boosted Darunavir (DRV/co) in HIV-1 infected, virologically suppressed adolescent participants weighing ≥ 25 kg (12 to < 18 years of age)

• To evaluate the safety and tolerability of ATV/co or DRV/co through 24 weeks in HIV-1 infected, virologically suppressed adolescent participants weighing ≥ 25 kg (12 to < 18 years of age)

Cohort 2:

The primary objectives are:

• To evaluate the steady-state PK of ATV and DRV and confirm the dose of ATV/co or DRV/co in HIV-1 infected pediatric participants weighing ≥ 25 to < 35 kg (6 to < 12 years of age)

• To evaluate the steady-state PK of tenofovir alafenamide (TAF) and confirm the dose of emtricitabine/tenofovir alafenamide (F/TAF) in HIV-1 infected pediatric participants weighing ≥ 25 to < 35 kg (6 to < 12 years of age)

• To evaluate the safety and tolerability of ATV/co, DRV/co, and F/TAF through 24 weeks in HIV-1 infected pediatric participants weighing ≥ 25 to < 35 kg (6 to < 12 years of age)

Cohort 3:

The primary objectives are:

• To evaluate the steady-state PK of ATV and DRV and confirm the dose of ATV/co or DRV/co in HIV-1 infected pediatric participants weighing ≥ 14 to < 25 kg (≥ 3 years of age)

• To evaluate the steady-state PK of TAF and confirm the dose of F/TAF in HIV-1 infected pediatric participants weighing ≥ 14 to < 25 kg (≥ 3 years of age)

• To evaluate the safety and tolerability of ATV/co, DRV/co, and F/TAF through 24 weeks in HIV-1 infected pediatric participants weighing ≥ 14 to < 25 kg (≥ 3 years of age)

• Phase: Phase 2/Phase 3
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Gilead Sciences
• Treatments: Atazanavir Sulfate; Cobicistat; Darunavir

Criteria

Key Inclusion Criteria:

• HIV-1 infected treatment-experienced, virologically suppressed males and females aged 3 years to < 18 years at the Day 1 visit (according to requirements of enrolling Cohort)

• Body weight at screening ≥ 25 kg (Cohorts 1), 14 kg to < 25 kg (Cohort 3)

• Stable antiretroviral regimen including 2 nucleoside reverse transcriptase inhibitors and either ritonavir-boosted atazanavir or ritonavir-boosted darunavir once or twice daily as per product label for a minimum of 3 months prior to the screening visit. Treatment-experienced pediatric individuals taking DRV/r must have no history of DRV resistance associated mutations.

• Documented negative screening for active pulmonary tuberculosis (TB) per local standard of care within 6 months of a screening visit

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