Oral Islatravir (MK-8591) Once-Monthly as Preexposure Prophylaxis (PrEP) in Men and Transgender Women Who Have Sex With Men and Are at High Risk for HIV-1 Infection (MK-8591-024)

  • STATUS
    Recruiting
  • End date
    Sep 27, 2024
  • participants needed
    1500
  • sponsor
    Merck Sharp & Dohme Corp.
Updated on 15 September 2021
Investigator
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Center Hospital of the National Center for Global Health and Medicine ( Site 0101) (8.4 mi away) Contact
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Summary

The main purpose of the study is to evaluate the efficacy and safety of oral Islatravir (ISL) once monthly (QM) as Preexposure Prophylaxis (PrEP) in cisgender men who have sex with men (MSM) and transgender women (TGW) who have sex with men and who are at high risk of HIV-1 infection with a minimum follow-up of 48 weeks and at least 50% of participants have 96 weeks of follow-up after randomization. The primary hypothesis of the study is that the administration of ISL QM as PreP reduces the incidence rate per year of the confirmed HIV-1 infections compared to the background incidence rates.

Details
Condition HIV Preexposure Prophylaxis
Treatment FTC/TAF, FTC/TDF, ISL, Placebo to ISL, Placebo to FTC/TDF, Placebo to FTC/TAF
Clinical Study IdentifierNCT04652700
SponsorMerck Sharp & Dohme Corp.
Last Modified on15 September 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Has confirmed Human Immunodeficiency Virus (HIV) uninfected based on negative HIV-1/HIV-2 test result before randomization
Is sexually active with male or transgender women (TGW) partners defined as having anal sexual intercourse with a man or TGW at least once in the past month
Is at high risk for sexually acquiring HIV-1 infection based on self-report of at least 1 of the following: a) Condomless receptive anal intercourse in the 6 months prior to screening occurring outside a mutually monogamous HIV seronegative concordant relationship b) More than 5 partners (anal intercourse) in the 6 months prior to screening c) Any unprescribed stimulant drug use in the 6 months prior to screening d) Rectal or urethral gonorrhea or chlamydia or incident syphilis in the 6 months prior to screening
Has no plans to relocate or travel away from the site for 4 consecutive weeks during study participation
Participants 16 or 17 years of age must weigh 35 kg. Enrollment for 16- to 17-year-old participants will begin only after completion of the Sentinel Cohort IA and review of IA results by the external data monitoring committee (eDMC)

Exclusion Criteria

Has hypersensitivity or other contraindication to any component of the study interventions as determined by the investigator
Has known current or chronic history of liver disease or known hepatic or biliary abnormalities, unless the participant has stable liver function tests and no evidence of hepatic synthetic dysfunction
Has chronic HBV infection or past HBV infection which could indicate risk for Hepatitis B reactivation
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 cancers
Has a history or current evidence of any condition, therapy, laboratory abnormality or other circumstance that might, in the opinion of the investigator, confound the results of the study or interfere with the participant's participation for the full duration of the study, such that it is not in the best interest of the participant to enroll
Is currently receiving or is anticipated to require any prohibited therapies outlined in the study from 30 days prior to Day 1 through the duration of the study
Has taken cabotegravir, lenacapavir, or any other long-acting HIV prevention product at any time
Has exclusionary laboratory values within 45 days prior to Day 1
Is currently participating in or has participated in an interventional or prevention clinical study with an investigational compound or device, within 30 days prior to Day 1 through the duration of the study
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