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  • Title: Contribution of animal studies to evaluate the similarity of biosimilars to reference products.
    Author: van Meer PJ, Ebbers HC, Kooijman M, Gispen-de Wied CC, Silva-Lima B, Moors EH, Schellekens H.
    Journal: Drug Discov Today; 2015 Apr; 20(4):483-90. PubMed ID: 25463036.
    Abstract:
    The European Union (EU) was the first region to establish a regulatory framework for biosimilars, in which animal studies are required to confirm similarity to a reference product. However, animal studies described in European public assessment reports (EPARs) or marketing authorization applications (MAAs) did not identify clinically or toxicologically relevant differences despite differences in quality, suggesting that animal studies lack the sensitivity to confirm biosimilarity. Scientific advice provided learning opportunities to evolve existing guidance. Altogether, the data support a step-wise approach to develop biosimilars that focuses on quality and clinical efficacy of biosimilar. This approach might be more effective and does not necessarily require animal studies, which is also reflected in new EU draft guidance.
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