…Another HIV Vaccine Trial Shuts Down
In the latest of a string of major setbacks in the search for an HIV vaccine, researchers have shuttered a trial after the experimental vaccine failed to both prevent HIV transmission and to reduce viral load in those who contracted the virus.
Called HVTN 505, the Phase IIb study was conducted by the NIAID-supported HIV Vaccine Trials Network (HVTN). It began in 2009 and enrolled 2,504 men who have sex with men (MSM) and transgendered people who have sex with men in 21 sites in 19 U.S. cities.
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