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GS-3242

Phase 1

HIV-1-infection | Small molecule | Infectious Disease |Gilead Sciences, Inc.|Last Updated: May 11, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment27
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07001319Study of GS-3242 in Participants With HIV-1; Substudy-05PHASE1 COMPLETED 27May 29, 2025Apr 16, 2026May 11, 202628 United States, Mexico +1
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Study Endpoints
Primary Endpoints
Change From Baseline in Plasma Human Immunodeficiency Virus (HIV)-1 Ribonucleic Acid (RNA) (log10 Copies/mL) at Day 11 Relative to Historical Placebo Data
Baseline, Day 11
Secondary Endpoints
Change From Baseline in Plasma HIV-1 RNA (log10 Copies/mL) at Day 8 Relative to Historical Placebo Data
Baseline, Day 8
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs)
First dose up to Day 39
Percentage of Participants With Graded Laboratory Abnormalities
First dose up to Day 39
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Cohort 1: Single Dose of GS-3242EXPERIMENTALParticipants in cohort 1 will receive single dose of GS-3242 450 mg on Days 1 and 2 in the fasted condition. After assessments on Day 11 or upon early termination (ET), the participants initiate a regimen of bictegravir/emtricitabine/tenofovir alafenamide (Biktarvy®) (BVY), or an alternative standard of care (SOC) antiretroviral (ART) regimen (example INSTI + NRTIs: dolutegravir (DTG)/abacavir (ABC)/3TC or DTG/3TC) up to Day 39. Following the completion of Cohort 1, additional cohorts may be opened for enrollment if further data are needed. Doses of GS-3242 will be based on safety and pharmacokinetic (PK) data from ongoing Phase 1a studies.
Interventions
NameTypeDescription
GS-3242DRUGAdministered orally
BVYDRUGAdministered orally
Standard of CareDRUGAntiretroviral therapy, administered orally Non-NNRTIs, examples: ABC/ DTG/3TC; DTG plus (TAF or TDF) plus (FTC or 3TC)
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites28

Key Inclusion Criteria: All Substudies: * Plasma human immunodeficiency virus-1 (HIV-1) ribonucleic acid (RNA) ≥ 5000 copies/mL but ≤ 400,000 copies/mL at screening. * Cluster of differentiation 4 (CD4) cell count \> 200 cells/mm\^3 at screening. * Antiretroviral (ARV) treatment-naive or treatment...

Countries:United StatesMexicoThailand
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Recent Changes (Last 90 Days)
HIGHMay 26, 2026NCT07001319Status: RECRUITING → COMPLETED
LOWMay 24, 2026NCT07001319studyFirstPostDate: changed