Resource Logo
CDC HIV/AIDS/Viral Hepatitis/STD/TB Prevention News Update

UGANDA: PrEP Adherence Curbs HIV Transmission in Straight Couples


AIDSMEDS (09.16.2013) Aids Weekly Plus

A study of HIV-negative heterosexuals who followed instructions for pre-exposure prophylaxis (PrEP) therapy indicated that PrEP was successful in preventing HIV. The researchers studied 1,147 HIV-negative individuals in long-term stable heterosexual relationships (average length of relationship was 8.5 years) with HIV-infected partners. Participants were from three Ugandan sites of the Partners PrEP study, which provided them with either Viread (tenofovir) or Truvada (tenofovir/emtricitabine). The group had six months of follow up left in the trial, had a median age of 34 years, and was 53 percent male. Researchers tracked PrEP adherence by electronic pill bottle monitoring and unannounced home visits to count pills. Participants received counseling if adherence dropped below 80 percent. Study participants had exceptional adherence levels, with an average of 99 percent for in-home pill counts and 97 percent for electronic monitoring. Of 404 individuals who received placebo, 14 were infected with HIV whereas of the 750 individuals who received PrEP, none was infected. Researchers concluded that PreP could be very effective in preventing HIV transmission when recipients maintained their daily dosing schedule. The full report, “Adherence to Antiretroviral Prophylaxis for HIV Prevention: A Substudy Cohort Within a Clinical Trial of Serodiscordant Couples in East Africa,” was published in the journal PLOS Medicine (2013;doi/10.1371/journal.pmed.1001511).


Copyright © 2013 -CDC Prevention News Update, Publisher. All rights reserved to Information, Inc., Bethesda, MD. The CDC National Center for HIV, STD and TB Prevention provides the following information as a public service only. Providing synopses of key scientific articles and lay media reports on HIV/AIDS, other sexually transmitted diseases and tuberculosis does not constitute CDC endorsement. This daily update also includes information from CDC and other government agencies, such as background on Morbidity and Mortality Weekly Report (MMWR) articles, fact sheets, press releases and announcements. Reproduction of this text is encouraged; however, copies may not be sold, and the CDC HIV/STD/TB Prevention News Update should be cited as the source of the information. Contact the sources of the articles abstracted below for full texts of the articles.

Information in this article was accurate in September 17, 2013. The state of the art may have changed since the publication date. This material is designed to support, not replace, the relationship that exists between you and your doctor. Always discuss treatment options with a doctor who specializes in treating HIV.