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Study of Lenacapavir as a Once-Yearly Injection for HIV Pre-exposure Prophylaxis (PrEP)

A Phase 3, Single-Arm Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Once-Yearly Intramuscular Lenacapavir for HIV Pre-exposure Prophylaxis (PrEP) in People With an Indication for PrEP

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07047716
Acronym
PURPOSE 365
Enrollment
350
Registered
2025-07-02
Start date
2025-07-22
Completion date
2028-09-01
Last updated
2026-03-04

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

Conditions

HIV Pre-exposure Prophylaxis

Brief summary

The goal of this clinical study is to learn more about the study drug lenacapavir (LEN), safety, tolerability, and pharmacokinetics (how LEN is absorbed, modified, distributed, and removed from the body of the participants) of once-yearly intramuscular for HIV pre-exposure prophylaxis (PrEP) in people with an indication for PrEP. The primary objective of this study is to evaluate the pharmacokinetics (PK) and the safety and tolerability of intramuscular (IM) every 12 months (Q12M) LEN for PrEP among people with an indication for PrEP.

Interventions

Administered intramuscularly

Administered orally

Sponsors

Gilead Sciences
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

It is a single arm study that means all participants will receive LEN. However, the study provides LEN in 2 phases, therefore, the two phases are reported as 2 separate arms.

Eligibility

Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Key Inclusion Criteria: * At least 16 years of age at screening. * Receptive anal or vaginal sex in the past 6 months and at least 1 of the following: 1. Condomless receptive sex (vaginal or anal) with 1 or more sex partners of unknown HIV status during the past 6 months 2. For a person who has engaged in anal sex in the past 6 months: diagnosis of syphilis, gonorrhea, or chlamydia in the past 6 months 3. For a person who has engaged in vaginal sex in the past 6 months: diagnosis of syphilis or gonorrhea in the past 6 months 4. Sex with partner known to be living with HIV with an unknown or detectable viral load in the past 6 months * Negative local rapid fourth generation HIV-1/2 antibody (Ab)/antigen (Ag) test, central fourth generation HIV-1/2 Ab/Ag, and HIV-1 RNA quantitative nucleic acid amplification testing (NAAT) at screening. Key

Exclusion criteria

* Current signs or symptoms suggesting HIV infection * Acute viral hepatitis A, B, or C or evidence of chronic hepatitis B or C infection * Severe hepatic impairment or a history of or current clinical decompensated liver cirrhosis (eg, ascites, encephalopathy, variceal bleeding) * Past or current participation in HIV vaccine or HIV broadly neutralizing antibody study unless participant provides documentation of receipt of placebo (ie, not active product) * Prior use of oral LEN in the past 90 days or subcutaneous LEN in the past 18 months Note: Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Plasma LEN Ctrough at Week 52Week 52Ctrough is defined as the concentration at the end of the dosing interval.
Percentage of Participants Experiencing Treatment-emergent Adverse Event (TEAEs)First dose up to 30 days post last dose (approximately 3 years)
Percentage of Participants Experiencing Treatment-emergent Clinical Laboratory AbnormalitiesFirst dose up to 30 days post last dose (up approximately 3 years)
Percentage of Participants With Discontinuation due to Adverse EventFirst dose up to 30 days post last dose (approximately 3 years)

Countries

United States

Contacts

CONTACTGilead Clinical Study Information Center
GileadClinicalTrials@gilead.com1-833-445-3230 (GILEAD-0)
STUDY_DIRECTORGilead Study Director

Gilead Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 5, 2026