“Not Another Avastin,” FDA Panel Warns Genentech At Perjeta Review
Under questioning from FDA’s Richard Pazdur, VP Sandra Horning says company would be willing to withdraw pertuzumab’s neoadjuvant indication if results from ongoing adjuvant study are “clearly negative”; advisory committee members say they expect sponsor to bow out more gracefully than it did in the fight over bevacizumab’s breast cancer claim.
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Office of Neuroscience Director Billy Dunn touted FDA’s ability to withdraw approval for AMX0035 if subsequent data indicate a lack of substantial evidence of effectiveness. However, this provision appears to have been infrequently used and involves a potentially time-consuming hearing.
Confirmatory trial misses overall survival primary endpoint, raising question of whether US FDA will seek to revoke accelerated approval of PD-L1 inhibitor’s second-line bladder cancer indication, as it did with Avastin’s breast cancer claim.
Sponsor says it would offer to remove olaparib from the market if results from ongoing SOLO-2 trial in ovarian cancer maintenance setting are “not consistent” with Phase II efficacy data upon which accelerated approval is requested.