First Phase 1 Double-Blind, Placebo-Controlled, Randomized Rectal Microbicide Trial Using UC781 Gel with a Novel Index of Ex Vivo Efficacy
2011

First Phase 1 Trial of UC781 Gel as a Rectal Microbicide

Sample size: 36 publication 10 minutes Evidence: moderate

Author Information

Author(s): Anton Peter A., Saunders Terry, Elliott Julie, Khanukhova Elena, Dennis Robert, Adler Amy, Cortina Galen, Tanner Karen, Boscardin John, Cumberland William G., Zhou Ying, Ventuneac Ana, Carballo-DiƩguez Alex, Rabe Lorna, McCormick Timothy, Gabelnick Henry, Mauck Christine, McGowan Ian

Primary Institution: Center for HIV Prevention Research, UCLA AIDS Institute, Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles

Hypothesis

Can UC781 gel be safely used as a rectal microbicide to reduce HIV transmission?

Conclusion

The UC781 gel was safe for rectal use, showed high acceptability, and demonstrated marked suppression of HIV infectibility in ex vivo biopsy infections.

Supporting Evidence

  • 100% retention of participants throughout the study.
  • No Grade 3 or 4 adverse events reported.
  • Marked suppression of HIV infectibility in ex vivo biopsy infections with 0.25% UC781.
  • High acceptability reported by participants for future use of the gel.
  • Plasma levels of UC781 were not detected in participants.

Takeaway

This study tested a gel to help prevent HIV when used in the rectum, and it was found to be safe and liked by participants.

Methodology

A double-blind, placebo-controlled trial with 36 HIV-1 seronegative participants using two concentrations of UC781 gel.

Potential Biases

Potential bias in self-reported acceptability measures.

Limitations

The study was limited by the small sample size and the lack of detectable plasma levels of UC781.

Participant Demographics

36 participants, median age 41, 72% male, 41% African American, 39% Caucasian.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0023243

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