H
Helen Cheng
Researcher at RTI International
Publications - 40
Citations - 1331
Helen Cheng is an academic researcher from RTI International. The author has contributed to research in topics: Population & Reproductive health. The author has an hindex of 18, co-authored 40 publications receiving 1218 citations. Previous affiliations of Helen Cheng include University of California, San Francisco.
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Journal ArticleDOI
Diaphragm and lubricant gel for prevention of HIV acquisition in southern African women: a randomised controlled trial
Nancy Padian,Ariane van der Straten,Gita Ramjee,Tsungai Chipato,Guy de Bruyn,Kelly Blanchard,Stephen Shiboski,Elizabeth T. Montgomery,Heidi Fancher,Helen Cheng,Michael Rosenblum,Mark J. van der Laan,Nicholas P. Jewell,James McIntyre +13 more
TL;DR: Although the intervention seemed safe, the findings do not support addition of the diaphragm to current HIV prevention strategies, and it is observed that lower condom use in women provided withDiaphragms did not result in increased infection.
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Epidemiological synergy of Trichomonas vaginalis and HIV in Zimbabwean and South African women.
Sue Napierala Mavedzenge,Barbara Van Der Pol,Helen Cheng,Elizabeth T. Montgomery,Kelly Blanchard,Guy de Bruyn,Gita Ramjee,Ariane van der Straten +7 more
TL;DR: An increased risk of both HIV acquisition associated with T. vaginalis infection and risk of T. sexual transmitted infection associated with HIV infection is found, which represents a potentially important factor in sustaining the HIV epidemic in populations where T. vaginais is endemic.
Journal ArticleDOI
High Acceptability of a Vaginal Ring Intended as a Microbicide Delivery Method for HIV Prevention in African Women
A. van der Straten,A. van der Straten,Elizabeth T. Montgomery,Helen Cheng,L. Wegner,Gileard Masenga,C. von Mollendorf,Linda-Gail Bekker,S. Ganesh,K. Young,Joseph Romano,Annalene Nel,Cynthia Woodsong +12 more
TL;DR: Initial concerns with this novel method suggest a need for enhanced product counseling when VRs are introduced, and qualitative data suggest that informants grew to like the ring because it felt securely placed, was unnoticeable during daily activities, and felt “normal” during sex.
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Vaginal Ring Adherence in Sub-Saharan Africa: Expulsion, Removal, and Perfect Use
Elizabeth T. Montgomery,A. van der Straten,A. van der Straten,Helen Cheng,L. Wegner,Gileard Masenga,C. von Mollendorf,Linda-Gail Bekker,S. Ganesh,K. Young,Joseph Romano,Annalene Nel,Cynthia Woodsong +12 more
TL;DR: It is suggested that adherence to VR use in the context of HIV prevention trials in these communities should be high, thereby enabling more accurate assessment of an active microbicide safety and efficacy.
Journal ArticleDOI
Stated product formulation preferences for HIV pre-exposure prophylaxis among women in the VOICE-D (MTN-003D) study.
Ellen Luecke,Helen Cheng,Kubashni Woeber,Teopista Nakyanzi,Imelda C Mudekunye-Mahaka,Ariane van der Straten,Ariane van der Straten +6 more
TL;DR: VOICE‐D (MTN‐003D), a qualitative ancillary study conducted after the VOICE trial, retrospectively explored participants’ tablet and gel use, as well as their preferences for other potential PrEP product formulations.