VOICE, an HIV prevention trial that has been evaluating two antiretroviral (ARV)-based approaches for preventing the sexual transmission of HIV in women – daily use of one of two different ARV tablets or of a vaginal gel – will be dropping the vaginal gel from the study.

A large-scale clinical trial evaluating whether daily use of an antiretroviral-containing oral tablet or vaginal gel can prevent HIV infection in women is being modified because an interim review found that the gel, an investigational microbicide, was not effective among study participants.

TITUSVILLE, N.J., Oct. 21, 2011 /PRNewswire/ -- Janssen Therapeutics, Division of Janssen Products, LP, announced today that the U.S.

VOICE, an HIV prevention trial evaluating two antiretroviral (ARV)-based approaches for preventing the sexual transmission of HIV in women – daily use of one of two different ARV tablets or of a vaginal gel – will be dropping one of the oral tablets from the study.

A large-scale clinical trial evaluating whether daily use of an oral tablet or vaginal gel containing antiretroviral drugs can prevent HIV infection in women is being modified because an interim review found that the study cannot show that one of the study products, oral tenofovir, marketed under the trade name Viread, is effective.