Evidence map›Paper›PMID 25908682›Full record

Trial reportClinical infectious diseases : an official publication of the Infectious Diseases Society of America2015

Effects of Emtricitabine/Tenofovir on Bone Mineral Density in HIV-Negative Persons in a Randomized, Double-Blind, Placebo-Controlled Trial.

Kathleen Mulligan, David V Glidden, Peter L Anderson, Albert Liu, Vanessa McMahan, Pedro Gonzales, Maria Esther Ramirez-Cardich, Sirianong Namwongprom, Piotr Chodacki, Laura Maria Carvalo de Mendonca and 10 more

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

Trial report in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00458393 (Chemoprophylaxis for HIV Prevention in Men), which is not on this map. Cited by 87 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed, 3 pooled it
20.6field-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.

NCT00458393 phase3completednot on this map

Chemoprophylaxis for HIV Prevention in Men

TypeinterventionalSponsorNational Institute of Allergy and Infectious Diseases (NIAID)Ran2007 to 2014Enrolled2,499ConditionsHIV InfectionsArmsdaily TDF/FTC, Placebo
3 · Its place in the literature

Who cites it

87 citing papers in PubMed, 3 syntheses or guidelines pooled it, 147 citations in OpenAlex.

  1. Pooled it
  2. Diagnosis, prevention, and treatment of bone fragility in people living with HIV: a position statement from the Swiss Association against Osteoporosis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2019
    Guideline
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  17. Metabolic Effects of Preexposure Prophylaxis With Coformulated Tenofovir Disoproxil Fumarate and Emtricitabine.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018
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27 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors at 10 institutions in 5 countries.

Kathleen MulliganUniversity of California, San Francisco.
David V GliddenUniversity of California, San Francisco.
Peter L AndersonUniversity of Colorado Denver, Aurora.
Albert LiuUniversity of California, San Francisco Bridge HIV, San Francisco Department of Public Health, California.
Vanessa McMahanGladstone Institute of Virology and Immunology, San Francisco, California.
Pedro GonzalesInvestigaciones Medicas en Salud.
Maria Esther Ramirez-CardichAsociacion Civil Impacta Salud y Education, Lima, Peru.
Sirianong NamwongpromChiang Mai University, Thailand.
Piotr ChodackiDesmond Tutu HIV Centre and Department of Medicine, University of Cape Town, South Africa.
Laura Maria Carvalo de MendoncaFederal University of Rio de Janeiro, Brazil.
Furong WangUniversity of California, San Francisco.
Javier R LamaAsociacion Civil Impacta Salud y Education, Lima, Peru.
Suwat ChariyalertsakChiang Mai University, Thailand Research Institute for Health Sciences, Chiang Mai, Thailand.
Juan Vicente GuaniraInvestigaciones Medicas en Salud.
Susan BuchbinderUniversity of California, San Francisco Bridge HIV, San Francisco Department of Public Health, California.
Linda-Gail BekkerDesmond Tutu HIV Centre and Department of Medicine, University of Cape Town, South Africa.
Mauro SchechterFederal University of Rio de Janeiro, Brazil Projeto Praca Onze, Hospital Escola Sao Francisco de Assis.
Valdilea G VelosoInstituto de Pesquisa Clinica Evandro Chagas-Fundaçao Oswaldo Cruz, Rio de Janeiro, Brazil.
Robert M GrantUniversity of California, San Francisco Gladstone Institute of Virology and Immunology, San Francisco, California.
Preexposure Prophylaxis Initiative Study Team
University of California, San Francisco · USAsociación Civil Impacta Salud y Educación · PEChiang Mai University · THGladstone Institutes · USUniversidade Federal do Rio de Janeiro · BRDesmond Tutu HIV Foundation · ZAFundação Oswaldo Cruz · BRSan Francisco Department of Public Health · USUniversity of Cape Town · ZAUniversity of Colorado Denver · US

Funding

Engaging University of California Stakeholders for Biorespository ResearchUL1TR000004 · NCATS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GRANDIS, JENNIFER RUBIN · 2012 to 2015
$78.0M
Chemoprophylaxis for HIV Prevention in Men SupplementU01AI064002 · NIAID · J. DAVID GLADSTONE INSTITUTES · PI GRANT, ROBERT M. · 2005 to 2011
$41.3M
San Francisco Vaccine and Prevention UnitUM1AI069496 · NIAID · PUBLIC HEALTH FOUNDATION ENTERPRISES · PI Susan Buchbinder, Diane V Havlir · 2012 to 2026
$30.5M
The FIOCRUZ Therapeutic and Prevention HIV/AIDS Clinical Trials Unit (FioTrials)UM1AI069476 · NIAID · FUNDACAO OSWALDO CRUZ · PI BEATRIZ GRINSZTEJN · 2012 to 2026
$26.3M
Cellular pharmacology of tenofovir and emtricitabine for HIV prophylaxisU01AI084735 · NIAID · UNIVERSITY OF COLORADO DENVER · PI ANDERSON, PETER L. · 2009 to 2012
$4.2M
Chemoprophylaxis and HIV Host InteractionsR01AI118575 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GRANT, ROBERT M. · 2015 to 2019
$2.9M
Chemoprophylaxis for HIV Prevention: Analysis of Bone and Metabolic EffectsR03AI120819 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GLIDDEN, DAVID V. · 2015 to 2016
$158k
NCATS NIH HHS UL1 TR000004NIAID NIH HHS R01 AI118575NIAID NIH HHS R03 AI120819NIAID NIH HHS U01 AI064002NIAID NIH HHS U01 AI084735NIAID NIH HHS U01AI64002NIAID NIH HHS U01 AI84735NIAID NIH HHS UM1 AI069476NIAID NIH HHS UM1 AI069496
6 · The paper itself

Abstract

backgroundDaily preexposure prophylaxis (PrEP) with oral emtricitabine and tenofovir disoproxil fumarate (FTC/TDF) decreases the risk of human immunodeficiency virus (HIV) acquisition. Initiation of TDF decreases bone mineral density (BMD) in HIV-infected people. We report the effect of FTC/TDF on BMD in HIV-seronegative men who have sex with men and in transgender women.

methodsDual-energy X-ray absorptiometry was performed at baseline and 24-week intervals in a substudy of iPrEx, a randomized, double-blind, placebo-controlled trial of FTC/TDF PrEP. Plasma and intracellular tenofovir concentrations were measured in participants randomized to FTC/TDF.

resultsIn 498 participants (247 FTC/TDF, 251 placebo), BMD in those randomized to FTC/TDF decreased modestly but statistically significantly by 24 weeks in the spine (net difference, -0.91% [95% confidence interval {CI}, -1.44% to -.38%]; P = .001) and hip (-0.61% [95% CI, -.96% to -.27%], P = .001). Changes within each subsequent 24-week interval were not statistically significant. Changes in BMD by week 24 correlated inversely with intracellular tenofovir diphosphate (TFV-DP), which was detected in 53% of those randomized to FTC/TDF. Net BMD loss by week 24 in participants with TFV-DP levels indicative of consistent dosing averaged -1.42% ± 29% and -0.85% ± 19% in the spine and hip, respectively (P < .001 vs placebo). Spine BMD tended to rebound following discontinuation of FTC/TDF. There were no differences in fractures (P = .62) or incidence of low BMD.

conclusionsIn HIV-uninfected persons, FTC/TDF PrEP was associated with small but statistically significant decreases in BMD by week 24 that inversely correlated with TFV-DP, with more stable BMD thereafter. CLINICAL TRIALS REGISTRATION: NCT00458393.

Indexed as

Absorptiometry, PhotonAdministration, OralAdolescentAdultAnti-HIV AgentsBone DensityChemopreventionCytoplasmDouble-Blind MethodEmtricitabineFemaleHIV InfectionsHumansMaleMiddle AgedPlacebosAnti-HIV AgentsEmtricitabinePlacebosTenofovirboneDXAemtricitabinePrEPtenofovir

Identifiers

PMID25908682
PMCPMC4565984
OpenAlexW2116531236

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.