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Nature 416, 6 (7 March 2002) | doi:10.1038/416006a

Army HIV vaccine to undergo clinical trial as rival is halted

Erika Check

The National Institutes of Health (NIH) has decided not to proceed with a full-scale clinical trial of its most advanced candidate HIV vaccine because of the vaccine's poor showing in smaller safety and efficacy trials.But ironically, the NIH will now find itself responsible for running a large-scale study — known as a phase III trial — of a very similar HIV vaccine.