Evidence map›Paper›PMID 21145855›Full record

Trial reportJournal of hepatology2011

Adherence to treatment for recently acquired hepatitis C virus (HCV) infection among injecting drug users.

Jason Grebely, Gail V Matthews, Margaret Hellard, David Shaw, Ingrid van Beek, Kathy Petoumenos, Maryam Alavi, Barbara Yeung, Paul S Haber, Andrew R Lloyd and 3 more

Open access · greenAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Journal of hepatology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

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  19. Treatment of acute HCV infection.Nature reviews. Gastroenterology & hepatology · 2011
    Review
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

13 authors at 5 institutions in 1 country.

Jason GrebelyNational Centre in HIV Epidemiology and Clinical Research, University of New South Wales, Sydney, Australia. jgrebely@nchecr.unsw.edu.au
Gail V Matthews
Margaret Hellard
David Shaw
Ingrid van Beek
Kathy Petoumenos
Maryam Alavi
Barbara Yeung
Paul S Haber
Andrew R Lloyd
John M Kaldor
Gregory J Dore
ATAHC Study Group
UNSW Sydney · AUNational Centre for Clinical Research on Emerging Drugs · AURoyal Adelaide Hospital · AUSt Vincent's Hospital · AUThe Alfred Hospital · AU

Funding

Treatment of recently acquired hepatitis C virus infectionR01DA015999 · NIDA · UNIVERSITY OF NEW SOUTH WALES · PI DORE, GREGORY JOHN · 2003 to 2014
$3.7M
NIDA NIH HHS R01 DA015999NIDA NIH HHS R01 DA 15999-01
6 · The paper itself

Abstract

BACKGROUND &

aimsAdherence to HCV therapy impacts sustained virological response (SVR) but there are limited data on adherence, particularly among injecting drug users (IDUs). We assessed 80/80 adherence (≥80% of PEG-IFN doses, ≥80% treatment), on-treatment adherence, and treatment completion in a study of treatment of recent HCV infection (ATAHC).

methodsParticipants with HCV received pegylated interferon (PEG-IFN) alfa-2a (180μg/week, n=74) and those with HCV/HIV received PEG-IFN alfa-2a with ribavirin (n=35), for a planned 24 weeks. Logistic regression analyses were used to identify predictors of PEG-IFN 80/80 adherence.

resultsA total of 109 out of 163 patients received treatment (HCV, n=74; HCV/HIV, n=35), with 75% ever reporting IDU. The proportion with 80/80 PEG-IFN adherence was 82% (n=89). During treatment, 14% missed ≥1 dose (on-treatment adherence=99%). Completion of 0-4, 5-19, 20-23, and all 24 weeks of PEG-IFN therapy occurred in 10% (n=11), 14% (n=15), 6% (n=7) and 70% (n=76) of cases, respectively. Participants with no tertiary education were less likely to have 80/80 PEG-IFN adherence (AOR 0.29, p=0.045). IDU prior to or during treatment did not impact 80/80 PEG-IFN adherence. SVR was higher among those patients with ≥80/80 PEG-IFN adherence (67% vs. 35%, p=0.007), but similar among those with and without missed doses during therapy (73% vs. 60%, p=0.309). SVR in those patients discontinuing therapy between 0-4, 5-19, 20-23, and 24 weeks was 9%, 33%, 43%, and 76%, respectively (p<0.001).

conclusionsHigh adherence to treatment for recent HCV was observed, irrespective of IDU prior to, or during, therapy. Sub-optimal PEG-IFN exposure was mainly driven by early treatment discontinuation rather than missed doses during therapy.

Indexed as

Patient ComplianceAdultAntiviral AgentsCohort StudiesFemaleHepatitis CHumansInterferon-alphaInterferon alpha-2Logistic ModelsMaleMiddle AgedPolyethylene GlycolsProspective StudiesRecombinant ProteinsRibavirinAntiviral AgentsInterferon-alphaInterferon alpha-2peginterferon alfa-2aPolyethylene GlycolsRecombinant ProteinsRibavirin

Identifiers

PMID21145855
PMCPMC3117933
OpenAlexW2033605805

What OpenQuestion holds

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Registered trials

None linked

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.