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- Title
Clinical trials for authorized biosimilars in the European Union: a systematic review.
- Authors
Mielke, Johanna; Jilma, Bernd; Koenig, Franz; Jones, Byron
- Abstract
Aim In 2006, Omnitrope (by Sandoz) was the first approved biosimilar in Europe. To date, 21 biosimilars for seven different biologics are on the market. The present study compared the clinical trials undertaken to obtain market authorization. Methods We summarized the findings of a comprehensive review of all clinical trials up to market authorization of approved biosimilars, using the European public assessment reports (EPARs) published by the European Medicines Agency (EMA). The features compared were, among others, the number of patients enrolled, the number of trials, the types of trial design, choice of endpoints and equivalence margins for pharmacokinetic (PK)/pharmacodynamic (PD) and phase III trials. Results The variability between the clinical development strategies is high. Some differences are explainable by the characteristics of the product; if, for example, the PD marker can be assumed to predict the clinical outcome, no efficacy trials might be necessary. However, even for products with the same reference product, the sample size, endpoints and statistical models are not always the same. Conclusions There seems to be flexibility for sponsors regarding the decision as to how best to prove biosimilarity.
- Subjects
CLINICAL trials; BIOLOGICALS; EUROPEAN Medicines Agency; PHARMACOKINETICS; PHARMACODYNAMICS
- Publication
British Journal of Clinical Pharmacology, 2016, Vol 82, Issue 6, p1444
- ISSN
0306-5251
- Publication type
Academic Journal
- DOI
10.1111/bcp.13076