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, Carin M J van Nieuwkerk, Joost P H Drenth and Wietske Kievit

PLOS ONE, 2016, vol. 11, issue 9, 1-14

Abstract: Background: Approval 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. Methods: We 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. Results: In 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

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0161821

DOI: 10.1371/journal.pone.0161821

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