Merck & Co. Inc. Announces Phase 3 Trials for Once-Monthly HIV Prevention Pill MK-8527 in Collaboration with Gates Foundation

Reuters
07-14
Merck & Co. Inc. Announces Phase 3 Trials for Once-Monthly HIV Prevention Pill MK-8527 in Collaboration with Gates Foundation

Merck & Co. Inc. has announced the initiation of the EXPrESSIVE Phase 3 clinical trials to evaluate the safety and efficacy of MK-8527, an investigational once-monthly oral nucleoside reverse transcriptase translocation inhibitor for HIV pre-exposure prophylaxis (PrEP). The trials are being conducted in collaboration with the Gates Foundation. The EXPrESSIVE-10 trial will focus on women and adolescent girls in sub-Saharan Africa, while the EXPrESSIVE-11 trial will target individuals with a greater likelihood of HIV-1 exposure in 16 countries, with enrollment scheduled to begin in August 2025. This decision follows a Phase 2 trial involving 350 participants, which demonstrated favorable safety and pharmacokinetic profiles of MK-8527. Results from this Phase 2 trial were presented during the 13th International AIDS Society Conference on HIV Science in Kigali, Rwanda.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Merck & Co. Inc. published the original content used to generate this news brief via Business Wire (Ref. ID: 20250714554719) on July 14, 2025, and is solely responsible for the information contained therein.

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