Onyx’s Myeloma Drug Kyprolis Fits ODAC’s View On Accelerated Approval

FDA’s Oncologic Drugs Advisory Committee overwhelmingly endorsed the second-generation proteasome inhibitor for accelerated approval in the relapsed/refractory population. Onyx’s reliance on a single-arm study was appropriate given the lack of treatment options in a heavily pre-treated population, said ODAC members, who also looked favorably upon the company’s advanced plans for confirmatory trials.

Onyx Pharmaceuticals Inc.’s NDA and clinical development program for the investigational multiple myeloma drug Kyprolis (carfilzomib) could be a textbook example of an appropriate accelerated approval plan, satisfying all of the criteria that have been laid out by FDA’s Oncologic Drugs Advisory Committee, panel members said at their June 20 meeting.

Although Onyx sought approval on the basis of one single-arm, Phase II trial, rather than a randomized study generally preferred...

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