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Title: Statistical considerations in biosimilar assessment using biosimilarity index
Authors: Zhang, A
Tzeng, J.-Y
Chow, S.-C 
Keywords: article
biosimilarity index
controlled study
quantitative study
sample size
statistical analysis
Issue Date: 2013
Publisher: OMICS Publishing Group
Citation: Zhang, A, Tzeng, J.-Y, Chow, S.-C (2013). Statistical considerations in biosimilar assessment using biosimilarity index. Journal of Bioequivalence and Bioavailability 5 (5). ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: When an innovative biologic product goes off patent, biopharmaceutical or biotechnological companies may file an application for regulatory approval of biosimilar products. Unlike small molecule drug products, biosimilars are not exact copies of their brand-name counterpart, and they are usually very sensitive to changes in environmental factors and have greater variabilities due to their complexity and sensitivity to variation in manufacturing processes. Facing these challenges, a biosimilarity index based on reproducibility probability is proposed to assess biosimilarity. In this article, we have demonstrated how to assess biosimilarity between the test and reference product in relative to a reference standard that is established in a study where reference product is compared with itself. Biosimilairty index approach is robust against biosimilarity criteria and has the advantage of allowing the assessment of the degree of similarity. © 2013 Zhang A, et al.
Source Title: Journal of Bioequivalence and Bioavailability
ISSN: 0975-0851
DOI: 10.4172/jbb.1000160
Rights: Attribution 4.0 International
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