The HIV Prevention Trials Network (HPTN) is a worldwide collaborative clinical trials network that develops and tests the safety and efficacy of primarily non-vaccine interventions designed to prevent the transmission of HIV. Established in 1999 by the Division of AIDS (DAIDS) of the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health (NIH), the HPTN carries out its mission through a strong network of expert scientists and investigators from more than two dozen international sites partnered with a leadership group comprised of three U.S.-based institutions.
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