Evidence map›Paper›PMID 26244306›Full record

Trial reportThe New England journal of medicine2015

Tenofovir Gel for the Prevention of Herpes Simplex Virus Type 2 Infection.

Salim S Abdool Karim, Quarraisha Abdool Karim, Ayesha B M Kharsany, Cheryl Baxter, Anneke C Grobler, Lise Werner, Angela Kashuba, Leila E Mansoor, Natasha Samsunder, Adrian Mindel and 2 more

Registry-linked trialOpen access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The New England journal of medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00441298 (Phase IIb Trial to Assess the Safety and Effectiveness of the Vaginal Microbicide 1% Tenofovir Gel for the Prevention of HIV Infection in Women in South Africa), which is not on this map. Cited by 46 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 4 pooled it
9.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00441298 phase2completednot on this map

Phase IIb Trial to Assess the Safety and Effectiveness of the Vaginal Microbicide 1% Tenofovir Gel for the Prevention of HIV Infection in Women in South Africa

TypeinterventionalSponsorCentre for the AIDS Programme of Research in South AfricaRan2007 to 2010Enrolled889ConditionsHIV InfectionsArmsTenofovir gel, Placebo (Universal HEC placebo)
3 · Its place in the literature

Who cites it

46 citing papers in PubMed, 4 syntheses or guidelines pooled it, 91 citations in OpenAlex.

  1. Sexually Transmitted Infections Treatment Guidelines, 2021.MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports · 2021
    Guideline
  2. Topical microbicides for preventing sexually transmitted infections.The Cochrane database of systematic reviews · 2021
    Pooled it
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  14. Tenofovir, Interferon Pathways, and Mucosal Immunity: Implications for People Living With HIV.American journal of reproductive immunology (New York, N.Y. : 1989) · 2026
    Review
  15. Article
  16. Review
  17. Review
  18. QnAs with Quarraisha Abdool Karim and Salim Abdool Karim: Winners of the 2024 Lasker~Bloomberg Public Service Award.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 2 countries.

Salim S Abdool KarimFrom the Centre for the AIDS Programme of Research in South Africa (CAPRISA) (S.S.A.K., Q.A.K., A.B.M.K., C.B., A.C.G., L.W., L.E.M., N.S., A.M., T.N.G.) and the University of KwaZulu-Natal (S.S.A.K.) - both in Durban, South Africa; the Department of Epidemiology, Mailman School of Public Health, Columbia University, New York (S.S.A.K., Q.A.K.); and the Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill (A.K.).
Quarraisha Abdool Karim
Ayesha B M Kharsany
Cheryl Baxter
Anneke C Grobler
Lise Werner
Angela Kashuba
Leila E Mansoor
Natasha Samsunder
Adrian Mindel
Tanuja N Gengiah
CAPRISA 004 Trial Group
National Institutes of Health · USColumbia University · USUniversity of KwaZulu-Natal · ZAUniversity of North Carolina at Chapel Hill · US

Funding

The Viral Set Point in HIV-1 Subtype C InfectionU19AI051794 · NIAID · UNIVERSITY OF KWAZULU-NATAL · PI ABDOOL KARIM, SALIM S · 2002 to 2007
$22.5M
TUBERCULOSIS SUPPLEMENTD43TW000231 · FIC · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI ABDOOL KARIM, QUARRAISHA · 1993 to 2014
$13.1M
FIC NIH HHS D43 TW000231FIC NIH HHS D43TW00231NIAID NIH HHS AI51794NIAID NIH HHS U19 AI051794
6 · The paper itself

Abstract

backgroundGlobally, herpes simplex virus type 2 (HSV-2) infection is the most common cause of genital ulcer disease. Effective prevention strategies for HSV-2 infection are needed to achieve the goals of the World Health Organization global strategy for the prevention and control of sexually transmitted infections.

methodsWe assessed the effectiveness of pericoital tenofovir gel, an antiviral microbicide, in preventing HSV-2 acquisition in a subgroup of 422 HSV-2-negative women enrolled in the Centre for the AIDS Programme of Research in South Africa (CAPRISA) 004 study, a double-blind, randomized, placebo-controlled trial. Incident HSV-2 cases were identified by evidence of seroconversion on an HSV-2 IgG enzyme-linked immunosorbent assay between study enrollment and exit. A confirmatory analysis was performed by Western blot testing.

resultsThe HSV-2 incidence rate was 10.2 cases per 100 person-years (95% confidence interval [CI], 6.8 to 14.7) among 202 women assigned to tenofovir gel, as compared with 21.0 cases per 100 person-years (95% CI, 16.0 to 27.2) among 222 women assigned to placebo gel (incidence rate ratio, 0.49; 95% CI, 0.30 to 0.77; P=0.003). The HSV-2 incidence rate among the 25 women with vaginal tenofovir concentrations of 10,000 ng per milliliter or more was 5.7 cases per 100 person-years, as compared with 15.5 cases per 100 person-years among the 103 women with no detectable vaginal tenofovir (incidence rate ratio, 0.37; 95% CI, 0.04 to 1.51; P=0.14). As confirmed by Western blot testing, there were 16 HSV-2 seroconversions among women assigned to tenofovir gel as compared with 36 among those assigned to the placebo gel (incidence rate ratio, 0.45; 95% CI, 0.23 to 0.82; P=0.005).

conclusionsIn this study in South Africa, pericoital application of tenofovir gel reduced HSV-2 acquisition in women. (Funded by the U.S. Agency for International Development and others; ClinicalTrials.gov number, NCT00441298.).

Indexed as

Herpesvirus 2, HumanAdenineAdministration, IntravaginalAdultDouble-Blind MethodFemaleFollow-Up StudiesGelsHerpes GenitalisHIV InfectionsHIV SeronegativityHumansIncidenceKaplan-Meier EstimateOrganophosphonatesReverse Transcriptase InhibitorsAdenineGelsOrganophosphonatesReverse Transcriptase InhibitorsTenofovir

Identifiers

PMID26244306
PMCPMC4562018
OpenAlexW1941748532

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.