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June 29, 2018
FDA Withdraws Draft Guidance On Evaluation Of Analytical Similarity Between A Proposed Biosimilar Product And A Reference Product

On June 21, 2018, the U.S. Food and Drug Administration (FDA) announced it was withdrawing the draft guidance, “Statistical Approaches to Evaluate Analytical Similarity,” issued in September 2017.  The announcement states that the draft guidance, if issued in final as written, “was intended to provide advice for sponsors developing biosimilar products regarding the evaluation of analytical similarity between a proposed biosimilar product and the reference product.”  Further, comments submitted to the docket “addressed a range of issues that could impact the cost and efficiency of biosimilar development, including the number of reference product lots the draft guidance would recommend biosimilar developers sample in their evaluation of high similarity and the statistical methods for this evaluation.”  FDA states that after considering the public comments that were received on the draft guidance, it determined it would withdraw the draft guidance as it gives further consideration to the scientific and regulatory issues involved, and that it intends to “issue future draft guidance that will reflect state-of-the-art techniques in the evaluation of analytical data to support a demonstration that a proposed biosimilar product is highly similar to a reference product.”  FDA will communicate publicly when new draft guidance is issued.


 
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