Merck & Co. Inc. announced that it will present new data from its HIV treatment and prevention pipeline at the 20th European AIDS Conference (EACS 2025), scheduled for October 15-18, 2025, in Paris, France. Planned presentations include an oral presentation on weight and body composition at Week 48 from a Phase 3 trial comparing doravirine/islatravir (DOR/ISL) to bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) for adults with virologically suppressed HIV-1 infection. Additional data to be presented include fasting lipids and insulin resistance from two Phase 3 trials, 96-week safety and pharmacokinetics from a Phase 2 trial of once-weekly islatravir/lenacapavir, and Phase 1 safety and pharmacokinetics of the investigational once-monthly PrEP pill MK-8527 in adults with renal impairment. These results will be presented at the upcoming conference.