Gilead said Thursday that its twice-yearly antiviral reduced the risk of HIV infections by 96% compared to an expected rate of infection in a second pivotal trial, paving the way for the likely approval of the drug for pre-exposure prophylaxis, or PrEP.
The study, which enrolled cisgender men, transgender women, transgender men, and gender nonbinary individuals who have sex with partners assigned male at birth, also showed that the antiviral, called lenacapavir, was 89% more effective than a daily pill called Truvada.
Specifically, two out of the 2,180 participants taking lenacapavir contracted HIV, while nine out of the 1,087 individuals in the Truvada group did.
