Evidence map›Paper›PMID 31158245›Full record

Trial reportPloS one2019

Randomized feasibility trial of directly observed versus unobserved hepatitis C treatment with ledipasvir-sofosbuvir among people who inject drugs.

Phillip O Coffin, Glenn-Milo Santos, Emily Behar, Jaclyn Hern, John Walker, Tim Matheson, Elizabeth N Kinnard, Janelle Silvis, Eric Vittinghoff, Rena Fox and 1 more

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

Trial report in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02609893 (Pilot Treatment as Prevention for HCV Among Persons Who Actively Inject Drugs), which is not on this map. Cited by 14 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 4 pooled it
2.9field-weighted citation impact, top 9% 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.

NCT02609893 phase4completednot on this map

Pilot Treatment as Prevention for HCV Among Persons Who Actively Inject Drugs

TypeinterventionalSponsorPhillip Coffin, MD, MIARan2015 to 2019Enrolled31ConditionsChronic Hepatitis CArmsmodified directly observed therapy (mDOT), unobserved dosing, Motivational Interviewing-based counseling
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 4 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
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  5. Trial
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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

11 authors at 2 institutions in 1 country.

Phillip O CoffinSan Francisco Department of Public Health, San Francisco, California, United States of America.ORCID 0000-0002-3891-6570
Glenn-Milo SantosSan Francisco Department of Public Health, San Francisco, California, United States of America.
Emily BeharSan Francisco Department of Public Health, San Francisco, California, United States of America.
Jaclyn HernSan Francisco Department of Public Health, San Francisco, California, United States of America.
John WalkerSan Francisco Department of Public Health, San Francisco, California, United States of America.
Tim MathesonSan Francisco Department of Public Health, San Francisco, California, United States of America.
Elizabeth N KinnardSan Francisco Department of Public Health, San Francisco, California, United States of America.
Janelle SilvisSan Francisco Department of Public Health, San Francisco, California, United States of America.
Eric VittinghoffUniversity of California San Francisco, San Francisco, California, United States of America.
Rena FoxUniversity of California San Francisco, San Francisco, California, United States of America.
Kimberley PageUniversity of California San Francisco, San Francisco, California, United States of America.
San Francisco Department of Public Health · USUniversity of California, San Francisco · US

Funding

Acute Hepatitis C Infection in Young InjectorsR01DA016017 · NIDA · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI PAGE, KIMBERLY · 2002 to 2018
$14.0M
Midcareer K24 Award for Mentoring and Patient-Oriented ResearchK24DA042720 · NIDA · SAN FRANCISCO DEPARTMENT OF PUBLIC HEALTH · PI PHILLIP O COFFIN · 2016 to 2026
$1.6M
Hepatitis C Treatment As Prevention Pilot Study with Ledipasvir-Sofosbuvir Among People Actively Injecting Drugs (TasP-C Pilot)R34DA039333 · NIDA · PUBLIC HEALTH FOUNDATION ENTERPRISES · PI COFFIN, PHILLIP O · 2015 to 2017
$500k
NIDA NIH HHS K24 DA042720NIDA NIH HHS R01 DA016017NIDA NIH HHS R34 DA039333
6 · The paper itself

Abstract

aimsThe advent of direct-acting antivirals for hepatitis C virus (HCV) and limited effectiveness of prevention have generated interest in "Treatment as Prevention" (TasP), in which those most likely to transmit HCV (i.e. people who inject drugs [PWID]) are treated to reduced secondary transmission. However, there are scant data regarding the feasibility of treating PWID at high risk for secondary transmission or the optimal approach to treatment delivery.

methodsWe conducted a 2:1 randomized trial of modified directly-observed (mDOT) versus unobserved HCV treatment with ledipasvir-sofosbuvir daily for 8 weeks among PWID with 36 weeks of follow-up in San Francisco from 2015-2017. We evaluated recruitment-enrollment, treatment completion, end-of-treatment and 12-week response, and reinfection rate.

resultsOf 83 individuals eligible for screening, 72 (87.6%) attended the screening visit, 33 were eligible, and 31 enrolled; mean age was 42 years, 81% were male, 74% white. All but one participant (in the mDOT arm) completed treatment and 89.4% of mDOT and 96.6% of unobserved arm visits were attended. HCV was undetectable for 96.8% (30/31) at end of treatment and 89.7% (26/29) 12 weeks later (1 relapse, 1 reinfection), with no differences by arm. Two additional reinfections were subsequently identified, for a reinfection rate of 16.3 (95% CI 5.3-50.5) per 100 person-years of observation.

conclusionsIt was feasible to recruit active PWID for HCV treatment and achieve high retention, viral response, and satisfaction with either mDOT or unobserved protocols, supporting treatment of PWID at risk of transmitting HCV to others. The reinfection rate suggests we successfully reached a high-risk population and that successful HCV TasP initiatives may aim to be sufficient in scope to significantly lower prevalence in the community.

trial registrationclinicaltrials.gov NCT02609893.

Indexed as

BenzimidazolesFluorenesHepatitis CSubstance Abuse, IntravenousUridine MonophosphateAdultFemaleHumansMaleMiddle AgedPrevalenceSan FranciscoSofosbuvirBenzimidazolesFluorenesledipasvir, sofosbuvir drug combinationSofosbuvirUridine Monophosphate

Identifiers

PMID31158245
PMCPMC6546233
OpenAlexW2948431369

What OpenQuestion holds

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LicenceCC BY
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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.