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Study of GS-3242 in Participants With HIV-1; Substudy-05

An Umbrella Phase 1b, Open-label, Multi-Cohort Study to Evaluate Safety, Pharmacokinetics, and Antiviral Activity of Novel Antiretrovirals in Participants With HIV-1 Substudy-05: GS-3242

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07001319
Enrollment
27
Registered
2025-06-03
Start date
2025-05-29
Completion date
2026-04-16
Last updated
2026-05-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV-1-infection

Brief summary

This study is part of a master study. The goal of master protocol (GS-US-544-5905, NCT05585307) is to learn how novel antiretrovirals (medicines that stop the virus from multiplying) affect the human immunodeficiency virus-1 (HIV-1) infection in people living with HIV (PWH). Substudy GS-US-544-5905-05 is to learn more about the study drug GS-3242 in PWH.

Detailed description

To refer master study protocol (GS-US-544-5905), refer to NCT05585307 on https://clinicaltrials.gov/

Interventions

DRUGGS-3242

Administered orally

DRUGBVY

Administered orally

DRUGStandard of Care

Antiretroviral therapy, administered orally Non-NNRTIs, examples: ABC/ DTG/3TC; DTG plus (TAF or TDF) plus (FTC or 3TC)

Sponsors

Gilead Sciences
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

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-experienced but naive to the investigational ARV drug class being investigated in the given substudy and have not received any ARV within 12 weeks of screening, including medications received for pre-exposure prophylaxis (PrEP) or postexposure prophylaxis (PEP) (note that current or prior receipt of long acting (LA) parenteral ARVs such as monoclonal antibodies (mAbs) targeting HIV-1, injectable cabotegravir (CAB), injectable rilpivirine (RPV) or injectable Lenacapavir (LEN) is exclusionary). * Have adequate renal function (estimated glomerular filtration rate (eGFR) ≥ 70 mL/min/1.73 m\^2) * No clinically significant abnormalities in electrocardiogram (ECG) at screening. Substudy-05: * Willing to initiate BVY provided by the sponsor, or an alternative SOC ART regimen selected by the investigator on Day 11 or upon ET. * Participants must also be willing to comply with meal requirements on dosing days. Key

Exclusion criteria

All Substudies: * Known historical genotypic or phenotypic resistance to 4 major ARV classes (nucleoside reverse transcriptase inhibitor (NRTI), nonnucleoside reverse transcriptase inhibitor (NNRTI), protease inhibitor (PI), integrase strand-transfer inhibitor (INSTI)). * History of an AIDS-defining condition including present at the time of screening. * Active, serious infections (other than HIV-1) requiring therapy and including active tuberculosis infection \< 30 days prior to randomization. * History of or current clinical decompensated liver cirrhosis (eg, ascites, encephalopathy, or variceal bleeding). * Any other serious or active clinical condition or prior therapy that, in the opinion of the investigator, would make the individual unsuitable for the study or unable to comply with dosing requirements. * Hepatitis C virus (HCV) antibody positive and detectable HCV RNA. * Chronic hepatitis B virus (HBV) infection, as determined by either: * 1\. Positive HBV surface antigen and negative HBV surface antibody, regardless of HBV core antibody status, at the screening visit, or * 2\. Positive HBV core antibody and negative HBV surface antibody, regardless of HBV surface antigen status, at the screening visit. * Hepatic transaminases (aspartate aminotransferase (AST) or alanine aminotransferase (ALT)) \> 5 x upper limit of normal (ULN). * Current alcohol or substance use judged by the investigator to potentially interfere with individual study compliance. * Positive serum pregnancy test at screening or a positive pregnancy test prior to Day 1. * Individuals with plan to breastfeed during the study period including the protocol-defined follow-up period. * Requirement for ongoing therapy with or prior use of any prohibited medications listed in the protocol. Any prescription medications or over the counter medications, including herbal products, within 28 days prior to start of study drug dosing must be reviewed and approved by the sponsor, with the exception of vitamins and/or acetaminophen and/or ibuprofen. * Any current or prior receipt of LA parenteral ARVs such as mAbs targeting HIV-1, injectable CAB, or injectable RPV, or injectable LEN, for treatment or prophylaxis (PrEP, PEP). Substudy-05: * Requirement for ongoing therapy with any prohibited medication. Note: Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frame
Change From Baseline in Plasma Human Immunodeficiency Virus (HIV)-1 Ribonucleic Acid (RNA) (log10 Copies/mL) at Day 11 Relative to Historical Placebo DataBaseline, Day 11

Secondary

MeasureTime frameDescription
Change From Baseline in Plasma HIV-1 RNA (log10 Copies/mL) at Day 8 Relative to Historical Placebo DataBaseline, Day 8
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs)First dose up to Day 39
Percentage of Participants With Graded Laboratory AbnormalitiesFirst dose up to Day 39
Pharmacokinetic (PK) Parameter: Cmax of GS-3242Day 1 Predose up to Day 11Cmax is defined as the maximum observed concentration of drug.
PK Parameter: AUC of GS-3242Day 1 Predose up to Day 11AUC is defined as the area under the concentration versus time curve (AUC).
PK Parameter: Ct of GS-3242Any day between Day 1 Predose up to Day 11Ct is defined as the concentration at specified time "t".
Correlation Between Ct and/ or AUC versus the Change in Plasma HIV-1 RNA (Log10 Copies/mL) from Day 1 Through Day 11Day 1 up to Day 11
Percentage of Participants at Any Measurement Achieving HIV-1 RNA < 50 Copies/mL by Day 11 at Each Dose LevelUp to Day 11
Percentage of Participants With Emergence of Viral Resistance to the ARV Class of the Given Drug (GS-3242)Up to Day 11

Countries

Mexico, Thailand, United States

Contacts

STUDY_DIRECTORGilead Study Director

Gilead Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 12, 2026