Celltrion's Biosimilar Gets FDA Panel Nod Despite Extrapolation Concerns

Committee discussion reflects tension between desire for indication-specific efficacy data and recognition of benefits of 351(k) pathway.

FDA's Arthritis Advisory Committee overwhelmingly endorsed approval of Celltrion Inc.'s Inflectra (CT-P13) as a biosimilar to Janssen Biotech Inc.'s Remicade (infliximab) despite panelists' discomfort with some aspects of the 351(k) approval pathway and the lack of clinical efficacy data in all indications.

The committee voted 21-3 that based on the totality of evidence, CT-P13 should be licensed as a biosimilar to Remicade...

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