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Phase I safety study of 0.5% PRO 2000 vaginal Gel among HIV un-infected women in Pune, India

J. Smita,D. Soma,Bell Beverly,Profy Albert,Kuruc JoAnn,G. Fang,Cianciola Missy,Soto-Torres Lydia,P. Anjali,Risbud Arun,M. Sanjay,Reynolds Steven J

Published 2006 in AIDS Research and Therapy

ABSTRACT

BackgroundThe objective of this study was to evaluate the safety of twice daily, intra-vaginal use of 0.5% PRO 2000 Gel for fourteen days in HIV un-infected women at lower as well as higher risk for HIV acquisition, in Pune, India.MethodsForty-two eligible volunteers (30 low-risk and 12 high-risk) were given 0.5% PRO 2000 Gel for intra-vaginal application twice daily for 14 consecutive days.ResultsTwenty-four participants (57%, 95% CI 41%–72%) experienced at least one adverse event (AE) judged to be possibly related to the product use. There were 17 (40%, 95% CI 26%–57%) mild AEs and 7 (17%, 95% CI 7%–31%) moderate AEs. There were no serious adverse events and no AEs judged probably or definitely related to product use. Genitourinary discomfort was reported by 2/30 (6.67%) participants in the low-risk cohort as compared to 4/12 (33.3%) women in the high-risk cohort (p = 0.03). Intermenstrual bleeding was reported in 2/30 (6.7%, 95% CI 1.0–22.1) women from the low risk cohort and 3/12 (25%, 95% CI 5.5–57.2) women from the high-risk cohort. One participant showed mild elevation of blood gamma glutamyl transferase and two showed mild elevations in total bilirubin. None of the participants showed detectable PRO 2000 in their blood after 14 days of product use.Conclusion0.5% PRO 2000 Gel appeared to be safe when used twice-daily by sexually active HIV-uninfected women from Pune, India. Although genitourinary discomfort and metrorrhagia were more common in the high-risk cohort, ongoing Phase II/IIb trial would provide data for generalization of this finding.

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