Emphasizing April’s vote of concern about the safety of PI3K inhibitors, the U.S. FDA’s Oncologic Drugs Advisory Committee said privately held Secura Bio Inc.’s Copiktra (duvelisib) is more of a hindrance than a help. The adcom voted 8-4 on Sept. 23 that it sees a detriment in overall survival (OS) and some other safety issues that were revealed in newly updated data for the cancer treatment. Approved in 2018 for treating adults with relapsed or refractory chronic lymphocytic leukemia or small lymphocytic lymphoma after at least two prior therapies, Secura argued that its data continue to show a statistically significant and clinically meaningful benefit in OS and also in progression-free survival.
The fate of three cancer drugs, and possibly the future financial health of their sponsors, could be on the line Sept. 22 and 23 as the U.S. FDA’s Oncologic Drugs Advisory Committee (ODAC) takes a hard look at the safety-efficacy data for Spectrum Pharmaceuticals Inc.’s Pozenveo, Oncopeptides AB’s Pepaxto and Secura Bio Inc.’s Copiktra. First up in the triple-header is Pozenveo (poziotinib), which is seeking accelerated approval as a second-line treatment for patients with locally advanced or metastatic non-small-cell lung cancer harboring HER2 exon 20 insertion mutations confirmed by an FDA-approved test.
Continuing its evaluation of cancer drugs already on the U.S. market, the FDA will convene its Oncologic Drugs Advisory Committee (ODAC) Sept. 22 and 23 to consider two more approved drugs – Oncopeptides AB’s Pepaxto (melphalan flufenamide) and Secura Bio Inc.’s Copiktra (duvelisib).
As congressional scrutiny of the U.S. FDA’s accelerated approval path continues, the agency is focusing research efforts into appropriate disclosure on direct-to-consumer websites about a drug’s accelerated approval and the status of confirmatory trials. Previous research by the FDA’s Office of Prescription Drug Promotion (OPDP) found that 27% of DTC websites providing information about a drug with accelerated approval don’t disclose that the products are on the market through accelerated approval.
Last week, Incyte Corp. said it was pulling its NDA seeking accelerated approval for the PI3K-delta inhibitor parsaclisib in three non-Hodgkin lymphoma subtypes, a move that followed recent decisions by Gilead Sciences Inc. and Secura Bio Inc. to withdraw from U.S. commercialization their respective PI3K-delta inhibitors in indications for which they’d received accelerated approval. But the recent spate of headlines is hardly “a condemnation” on the entire class of drugs, said Dan Gold, CEO of MEI Pharma Inc., which is aiming for a potential accelerated approval filing of its own PI3K-delta drug, zandelisib, this year.