Press release

Gilead’s Twice-Yearly Lenacapavir Demonstrated 100% Efficacy and Superiority to Daily Truvada® for HIV Prevention

– First Phase 3 HIV Prevention Trial Ever to Show Zero Infections – – Independent Data Monitoring Committee Recommended That Gilead Stop the Blinded Phase of

articleGilead Sciences, Inc.June 20, 20243/company/gilead-sciences-inc/news/gileads-twice-yearly-lenacapavir-demonstrated-100-efficacy-and-superiority-daily
Gilead’s Twice-Yearly Lenacapavir Demonstrated 100% Efficacy and Superiority to Daily Truvada® for HIV Prevention

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[{"type":"text","content":"\n– First Phase 3 HIV Prevention Trial Ever to Show Zero Infections –\n\n\n– Independent Data Monitoring Committee Recommended That Gilead Stop the Blinded Phase of the PURPOSE 1 Trial at Interim Analysis and Offer Open-Label Lenacapavir to All Participants –\n\n\n FOSTER CITY, Calif.--(BUSINESS WIRE)--\nGilead Sciences, Inc. (Nasdaq: GILD) today announced topline results from an interim analysis of its pivotal, Phase 3 PURPOSE 1 trial indicating that the company’s twice-yearly injectable HIV-1 capsid inhibitor, lenacapavir, demonstrated 100% efficacy for the investigational use of HIV prevention in cisgender women.\n\n\nPURPOSE 1 met its key efficacy endpoints of superiority of twice-yearly lenacapavir to once-daily oral Truvada® (emtricitabine 200mg and tenofovir disoproxil fumarate 300mg; F/TDF) and background HIV incidence (bHIV). Based on these results, the independent Data Monitoring Committee (DMC) recommended that Gilead stop the blinded phase of the trial and offer open-label lenacapavir to all participants.\n\n\n“With zero infections and 100% efficacy, twice-yearly lenacapavir has demonstrated its potential as an important new tool to help prevent HIV infections,” said Merdad Parsey, MD, PhD, Chief Medical Officer, Gilead Sciences. “We look forward to additional results from the ongoing PURPOSE clinical program and continuing toward our goal of helping to end the HIV epidemic for everyone, everywhere.”\n\n\nThese are the first data generated from Gilead’s landmark PURPOSE program, which is the most comprehensive and diverse HIV prevention trial program ever conducted. The PURPOSE program comprises five HIV prevention trials around the world that are focused on innovation in science, trial design, community engagement and health equity.\n\n\nTopline PURPOSE 1 data\n\n\nPURPOSE 1, a Phase 3, double-blind, randomized study, is evaluating the safety and efficacy of twice-yearly, subcutaneous lenacapavir for pre-exposure prophylaxis (PrEP) and once-daily oral Descovy® (emtricitabine 200mg and tenofovir alafenamide 25mg; F/TAF) in more than 5,300 cisgender women and adolescent girls aged 16-25 across 25 sites in South Africa and three sites in Uganda. The drugs are being tested in parallel, with one group receiving twice-yearly lenacapavir and one group taking once-daily oral Descovy. Additionally, a third group was assigned...

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