Gilead’s Single-Tablet HIV Regimen Meets Trial Endpoint

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Gilead Sciences says its investigational single-tablet regimen combining bictegravir and lenacapavir met its primary endpoint in a pivotal Phase 3 trial, marking a potential advance for people with HIV who rely on complex, multi-pill treatments. The open-label ARTISTRY-1 study tested the once-daily tablet, which combines the integrase inhibitor bictegravir and the long-acting capsid inhibitor lenacapavir, in adults with HIV-1 who are virologically suppressed on multi-drug antiretroviral regimens, according to the company. It says the regimen was statistically non-inferior to existing multi-tablet therapy in maintaining viral suppression at 48 weeks, the study’s primary endpoint, and no new or significant safety issues emerged in the trial.

The findings could expand treatment options for people with HIV who cannot take current single-tablet regimens because of resistance, tolerability, or drug–drug interactions — factors that often lead to high pill burdens and complicated dosing schedules, according to Gilead. At the start of ARTISTRY-1, participants were taking between two and eleven HIV pills daily, with about 40% dosing more than once a day.

The company notes that the results from ARTISTRY-1 and a companion study, ARTISTRY-2, will form the basis of Gilead’s regulatory submissions. ARTISTRY-2 is an ongoing double-blind Phase 3 trial testing the same fixed-dose combination in people switching from Gilead’s marketed single-tablet regimen Biktarvy. Topline data from that study are expected by the end of the year.

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