Purpose

Researchers are looking for new medicines to prevent HIV-1 (Human Immunodeficiency Virus Type 1) infection. The goals of this study are to learn: - If taking MK-8527 once a month works to prevent HIV-1 infection as well as or better than a standard (usual) pre-exposure prophylaxis (PrEP) taken once a day - About the safety of MK-8527 and if people tolerate it

Conditions

Eligibility

Eligible Ages
Over 16 Years
Eligible Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

The main inclusion criteria include but are not limited to the following: - Is confirmed HIV-uninfected based on negative HIV-1/HIV-2 test results - Is a cisgender man, transgender woman (assigned male sex at birth), transgender man (assigned female sex at birth), or gender nonbinary person - Has had condomless receptive anal sex in the 12 months prior to screening (not including sex occurring in a mutually monogamous relationship) and has at least 1 of the following: receptive anal sex with 2 or more partners in the 3 months prior to screening (regardless of condom use), rectal or urethral gonorrhea or chlamydia or incident syphilis in the 6 months prior to screening, or any self-reported stimulant drug use with sex in the 3 months prior to screening - Weighs ≥35 kg

Exclusion Criteria

The main exclusion criteria include but are not limited to the following: - Has hypersensitivity or other contraindication to any component of the study interventions - Has evidence of acute or chronic hepatitis B infection - Has a history of malignancy within 5 years of screening except for adequately treated basal cell or squamous cell skin cancer, or in situ anal or cervical cancers - Has taken cabotegravir, lenacapavir, or any other long-acting HIV prevention product at any time - Is receiving or is anticipated to require any prohibited therapies from 30 days prior to Day 1 through the study duration - Has received an HIV vaccine at any time (ie, through past participation in an investigational clinical study) or monoclonal antibodies to HIV within 12 months before Day 1 - Is expecting to donate eggs at any time during the study

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Double (Participant, Investigator)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
MK-8527
Participants will receive 11 mg MK-8527 once monthly (QM) and placebo to FTC/TDF once daily (QD) for up to approximately 2 years. Participants will then receive open-label 200 mg FTC/245 mg TDF QD for an additional 28 days.
  • Drug: MK-8527
    Oral tablet
  • Drug: FTC/TDF
    Oral tablet
    Other names:
    • Truvada
    • Emtricitabine/Tenofovir Disoproxil Fumarate
  • Drug: Placebo to FTC/TDF
    Placebo tablet matched to FTC/TDF
Active Comparator
FTC/TDF
Participants will receive 200 mg FTC/245 mg TDF QD and placebo to MK-8527 QM for up to approximately 2 years. Participants will then receive open-label 200 mg FTC/245 mg TDF QD for an additional 28 days.
  • Drug: FTC/TDF
    Oral tablet
    Other names:
    • Truvada
    • Emtricitabine/Tenofovir Disoproxil Fumarate
  • Drug: Placebo to MK-8527
    Placebo tablet matched to MK-8527

Recruiting Locations

University of Alabama at Birmingham-UAB 1917 Research Clinic ( Site 0006)
Birmingham 4049979, Alabama 4829764 35222
Contact:
Study Coordinator
205-934-2490

More Details

Status
Recruiting
Sponsor
Merck Sharp & Dohme LLC

Study Contact

Toll Free Number
1-888-577-8839
Trialsites@msd.com

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.