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Twice-yearly lenacapavir treatment prevents HIV infection in young women

Twice-yearly lenacapavir treatment prevents HIV infection in young women

 


HealthDay News—For adolescent girls and young women, a dose of lenacapavir given every 26 weeks is effective in preventing acquired HIV infection, according to a study published online July 24. New England Journal of Medicine To coincide with the 25th International AIDS Conference, taking place in Munich from 22 to 26 July.

Linda Gayle Becker, MB, ChB, PhD, from the Desmond Tutu HIV Centre at the University of Cape Town in South Africa, and colleagues conducted a randomly assigned phase 3 trial in adolescent girls and young women. Subcutaneous lenacapavir Participants received either daily oral emtricitabine-tenofovir alafenamide (F/TAF) or daily oral emtricitabine-tenofovir disoproxil fumarate (F/TDF, active comparator) in a 2:2:1 ratio every 26 weeks (2134, 2136, and 1068 participants, respectively). The relative efficacy of lenacapavir and F/TAF was assessed by comparing the incidence of HIV infection in the screened population (8094 participants) with estimated background incidence, and the relative efficacy was compared with F/TDF.

The researchers confirmed that 55 of 5,338 initially HIV-negative participants acquired HIV infection (0.0, 2.02, and 1.69 infections per 100 person-years in the lenacapavir, F/TAF, and F/TDF groups, respectively). In the screened population, the background HIV incidence rate was 2.41 per 100 person-years. HIV incidence with lenacapavir was significantly lower than background HIV incidence and HIV incidence with F/TDF (incidence rate ratios were both 0.00). No significant differences were found between HIV incidence with F/TAF and background HIV incidence, and no meaningful differences in HIV incidence were found between F/TAF and F/TDF.

“Twice-yearly lenacapavir offers a highly effective, unobtrusive option that has the potential to improve the use of pre-exposure prophylaxis in women,” the authors write.

Several authors disclosed ties to pharmaceutical companies, including Gilead Sciences, which makes lenacapavir and funded the research.

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