Evidence map›Paper›PMID 27598789›Full record

ArticlePloS one2016

Limited Generalizability of Registration Trials in Hepatitis C: A Nationwide Cohort Study.

Floor A C Berden, Robert J de Knegt, Hans Blokzijl, Sjoerd D Kuiken, Karel J L van Erpecum, Sophie B Willemse, Jan den Hollander, Marit G A van Vonderen, Pieter Friederich, Bart van Hoek and 3 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
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  5. Observational
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 10 institutions in 1 country.

Floor A C BerdenDepartment of Gastroenterology and Hepatology, Radboud university medical center, Nijmegen, the Netherlands.ORCID http://orcid.org/0000-0003-1899-4421
Robert J de KnegtDepartment of Gastroenterology and Hepatology, Erasmus Medical Center Rotterdam, Rotterdam, the Netherlands.
Hans BlokzijlDepartment of Gastroenterology and Hepatology, University medical center Groningen, Groningen, the Netherlands.
Sjoerd D KuikenDepartment of Gastroenterology and Hepatology, Onze Lieve Vrouwe Gasthuis, location West, Amsterdam, the Netherlands.
Karel J L van ErpecumDepartment of Gastroenterology and Hepatology, University medical center Utrecht, Utrecht, the Netherlands.
Sophie B WillemseDepartment of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, the Netherlands.
Jan den HollanderDepartment of Internal Medicine, Maasstad hospital, Rotterdam, the Netherlands.
Marit G A van VonderenDepartment of Internal Medicine, Medical center Leeuwarden, Leeuwarden, the Netherlands.
Pieter FriederichDepartment of Gastroenterology and Hepatology, Catharina hospital, Eindhoven, the Netherlands.
Bart van HoekDepartment of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands.
Carin M J van NieuwkerkDepartment of Gastroenterology and Hepatology, VU university medical center, Amsterdam, the Netherlands.
Joost P H DrenthDepartment of Gastroenterology and Hepatology, Radboud university medical center, Nijmegen, the Netherlands.
Wietske KievitDepartment for Health Evidence, Radboud university medical center, Nijmegen, the Netherlands.
Radboud University Nijmegen · NLAmsterdam UMC Location University of Amsterdam · NLAmsterdam UMC Location Vrije Universiteit Amsterdam · NLErasmus MC · NLLeiden University Medical Center · NLMaasstad Ziekenhuis · NLMedisch Centrum Leeuwarden · NLOLVG · NLUniversity Medical Center Groningen · NLUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundApproval of drugs in chronic hepatitis C is supported by registration trials. These trials might have limited generalizability through use of strict eligibility criteria. We compared effectiveness and safety of real world hepatitis C patients eligible and ineligible for registration trials.

methodsWe performed a nationwide, multicenter, retrospective cohort study of chronic hepatitis C patients treated in the real world. We applied a combined set of inclusion and exclusion criteria of registration trials to our cohort to determine eligibility. We compared effectiveness and safety in eligible vs. ineligible patients, and performed sensitivity analyses with strict criteria. Further, we used log binomial regression to assess relative risks of criteria on outcomes.

resultsIn this cohort (n = 467) 47% of patients would have been ineligible for registration trials. Main exclusion criteria were related to hepatic decompensation and co-morbidity (cardiac disease, anemia, malignancy and neutropenia), and were associated with an increased risk for serious adverse events (RR 1.45-2.31). Ineligible patients developed significantly more serious adverse events than eligible patients (27% vs. 11%, p< 0.001). Effectiveness was decreased if strict criteria were used.

conclusionsNearly half of real world hepatitis C patients would have been excluded from registration trials, and these patients are at increased risk to develop serious adverse events. Hepatic decompensation and co-morbidity were important exclusion criteria, and were related to toxicity. Therefore, new drugs should also be studied in these patients, to genuinely assess benefits and risk of therapy in the real world population.

Indexed as

AdultAgedAnemiaAntiviral AgentsCardiovascular DiseasesEligibility DeterminationFemaleHepacivirusHepatitis C, ChronicHumansInterferon-alphaMaleMiddle AgedNeoplasmsNetherlandsNeutropeniaAntiviral AgentsInterferon-alphapeginterferon alfa-2aPolyethylene GlycolsRecombinant ProteinsRibavirin

Identifiers

PMID27598789
PMCPMC5012685
OpenAlexW2531170556

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.