(Reuters) – Gay men at high risk of HIV who took a daily dose of a Gilead AIDS drug as a preventative measure cut their risk of infection by 86 percent, according to results of a British trial released on Tuesday. Researchers who conducted the trial of so-called pre-exposure prophylaxis (PrEP) said the results offer real hope of reversing the HIV epidemic among men who have sex with men, one of the highest risk groups.
“These results … show PrEP is highly effective at preventing HIV infection in the real world,” said Sheena McCormack, a professor of clinical epidemiology at University College London and the study’s lead investigator.
PrEP involves people who do not have HIV but who are at high risk of becoming infected and seek to protect themselves by taking a single pill, usually a combination of two antiretrovirals, every day.