Evidence map›Paper›PMID 25942472›Full record

Trial reportPloS one2015

A Phase 1 Randomized, Open Label, Rectal Safety, Acceptability, Pharmacokinetic, and Pharmacodynamic Study of Three Formulations of Tenofovir 1% Gel (the CHARM-01 Study).

Ian Mcgowan, Ross D Cranston, Kathryn Duffill, Aaron Siegel, Jarret C Engstrom, Alexyi Nikiforov, Cindy Jacobson, Khaja K Rehman, Julie Elliott, Elena Khanukhova and 10 more

Registry-linked trialOpen access · goldAbstract readClinical Trial, Phase IRandomized Controlled Trial
In one paragraph

Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01575405 (A Randomized, Double Blind Phase 1 Safety, Acceptability, and Pharmacokinetic Study Comparing Three Formulations of Tenofovir 1% Gel Administered Rectally to HIV-1 Seronegative Adults), which is not on this map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
6.4field-weighted citation impact, top 3% 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.

NCT01575405 phase1completednot on this map

A Randomized, Double Blind Phase 1 Safety, Acceptability, and Pharmacokinetic Study Comparing Three Formulations of Tenofovir 1% Gel Administered Rectally to HIV-1 Seronegative Adults

TypeinterventionalSponsorIan McGowanRan2013 to 2013Enrolled13ConditionsHIV PreventionArmsRectal formulation (RF) of tenofovir 1% gel, Vaginal formulations (original VF and reduced vaginal glycerin formulation RGVF) of tenofovir 1% gel, Universal HEC Placebo Gel Formulation
3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 57 citations in OpenAlex.

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  10. Analytical Advances in the Ex Vivo Challenge Efficacy Assay.AIDS research and human retroviruses · 2017
    Trial
  11. MTN-017: A Rectal Phase 2 Extended Safety and Acceptability Study of Tenofovir Reduced-Glycerin 1% Gel.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2017
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  17. TheiScience · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors at 7 institutions in 1 country.

Ian McgowanUniversity of Pittsburgh, Pittsburgh, Pennsylvania, United States of America; Magee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Ross D CranstonUniversity of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Kathryn DuffillMagee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Aaron SiegelMagee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Jarret C EngstromMagee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Alexyi NikiforovMagee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Cindy JacobsonMagee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Khaja K RehmanMagee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Julie ElliottDavid Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, United States of America.
Elena KhanukhovaDavid Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, United States of America.
Kaleab AbebeUniversity of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Christine MauckCONRAD, Arlington, Virginia, United States of America.
Hans M L SpiegelHJF-DAIDS, a Division of The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Contractor to National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America.
Charlene S DezzuttiUniversity of Pittsburgh, Pittsburgh, Pennsylvania, United States of America; Magee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Lisa C RohanUniversity of Pittsburgh, Pittsburgh, Pennsylvania, United States of America; Magee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America.
Mark A MarzinkeDepartment of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America.
Hiwot HiruyDepartment of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America.
Craig W HendrixDepartment of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America.
Nicola Richardson-HarmanAlpha StatConsult LLC, Damascus, Maryland, United States of America.
Peter A AntonDavid Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, United States of America.
Magee-Womens Research Institute · USUniversity of Pittsburgh · USUniversity of California, Los Angeles · USJohns Hopkins Medicine · USContraception Research and Development · USJohns Hopkins University · USNational Institute of Allergy and Infectious Diseases · US

Funding

Vaccine Response and Immunotherapeutics SWGP30AI094189 · NIAID · JOHNS HOPKINS UNIVERSITY · PI Richard E. Chaisson · 2012 to 2026
$67.0M
University of Pittsburgh Clinical and Translational Science InstituteUL1TR000005 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$50.8M
Topical Antiretrovirals to Prevent Rectal HIV InfectionU19AI082637 · NIAID · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI ROHAN, LISA CENCIA · 2009 to 2013
$11.1M
Clinical Pharmacology Training ProgramT32GM066691 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI Matthew Michael Ippolito · 2003 to 2026
$6.4M
NCATS NIH HHS UL1 TR000005NIAID NIH HHS AI082637NIAID NIH HHS HHSN272201000001CNIAID NIH HHS HHSN272201000001GNIAID NIH HHS HHSN272201000001ZNIAID NIH HHS P30 AI094189NIAID NIH HHS U19 AI082637NIGMS NIH HHS T32 GM066691
6 · The paper itself

Abstract

objectivesThe CHARM-01 study characterized the safety, acceptability, pharmacokinetics (PK), and pharmacodynamics (PD) of three tenofovir (TFV) gels for rectal application. The vaginal formulation (VF) gel was previously used in the CAPRISA 004 and VOICE vaginal microbicide Phase 2B trials and the RMP-02/MTN-006 Phase 1 rectal safety study. The reduced glycerin VF (RGVF) gel was used in the MTN-007 Phase 1 rectal microbicide trial and is currently being evaluated in the MTN-017 Phase 2 rectal microbicide trial. A third rectal specific formulation (RF) gel was also evaluated in the CHARM-01 study.

methodsParticipants received 4 mL of the three TFV gels in a blinded, crossover design: seven daily doses of RGVF, seven daily doses of RF, and six daily doses of placebo followed by one dose of VF, in a randomized sequence. Safety, acceptability, compartmental PK, and explant PD were monitored throughout the trial.

resultsAll three gels were found to be safe and acceptable. RF and RGVF PK were not significantly different. Median mucosal mononuclear cell (MMC) TFV-DP trended toward higher values for RF compared to RGVF (1136 and 320 fmol/106 cells respectively). Use of each gel in vivo was associated with significant inhibition of ex vivo colorectal tissue HIV infection. There was also a significant negative correlation between the tissue levels of TFV, tissue TFV-DP, MMC TFV-DP, rectal fluid TFV, and explant HIV-1 infection.

conclusionsAll three formulations were found to be safe and acceptable. However, the safety profile of the VF gel was only based on exposure to one dose whereas participants received seven doses of the RGVF and RF gels. There was a trend towards higher tissue MMC levels of TFV-DP associated with use of the RF gel. Use of all gels was associated with significant inhibition of ex vivo tissue HIV infection.

trial registrationClinicalTrials.gov NCT01575405.

Indexed as

GelsAdultAnti-HIV AgentsAnti-Infective Agents, LocalChemistry, PharmaceuticalFemaleHIV InfectionsHumansImmunophenotypingIntestinal MucosaMaleMedication AdherenceMicrobiotaMiddle AgedPhenotypeRectumAnti-HIV AgentsAnti-Infective Agents, LocalGelsTenofovir

Identifiers

PMID25942472
PMCPMC4420274
OpenAlexW319043714

What OpenQuestion holds

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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.