First phase I clinical trial of an HIV-1 subtype D gp140 envelope protein vaccine: immune activity induced in all study participants

Abstract
To combat HIV-1 diversity, we are developing a multienvelope vaccine (comprising DNA, vaccinia virus and protein vectors). Toward this goal, we conducted a phase I clinical trial of EnvPro, a gp140 protein formulated in alum. The vaccine was well tolerated and elicited an immune response in every trial participant.