Lessons From Avastin: Accelerated Approval Needs “Easy On, Easy Off” Mechanism, Pazdur Says

FDA’s oncology office director says the resource-intensive hearing process for withdrawing bevacizumab’s breast cancer claim demonstrates that it is “untenable for a large number of drugs.”

Any reforms aimed at making it easier for drug sponsors to pursue accelerated approval should be accompanied by changes that make it easier for FDA to withdraw drugs when post-approval trials fail to confirm clinical benefit, Office of Hematology and Oncology Products Director Richard Pazdur said at the Conference on Clinical Cancer Research Nov. 14.

Speaking from the audience during a panel discussion on ways to expand the use of accelerated approval, Pazdur said FDA’s experience in withdrawing Avastin’s (bevacizumab) breast cancer claim makes clear...

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