FDA
With CBER director Vinay Prasad set to depart the agency at the end of the month, a coalition of patient groups and biotech executives penned a letter imploring the Trump administration to “restore regulatory clarity” for rare disease therapies. Experts on a BioSpace panel last week also acknowledged the challenges faced by a more stringent FDA.
FEATURED STORIES
Draft guidance, issued by the FDA last week, could remove ambiguity and uncertainty that may have so far limited uptake of new approach methodologies, experts told BioSpace, particularly emphasizing the agency’s recommendations around defining NAMs’ regulatory purpose.
The FDA’s Commissioner’s National Priority Voucher program, unveiled in June 2025, is “shrouded in secrecy,” Democratic representative Jake Auchincloss said last month, as regulatory and biopharma leaders try to decode the criteria for investigational or approved drugs to receive a voucher.
Although FDA Commissioner Marty Makary promised “an exciting treatment” for autism, what the agency delivered was a label expansion for leucovorin to treat the ultrarare cerebral folate deficiency. The regulatory process, which relied on a literature review rather than new evidence, stands in contrast to recent rare disease rejections in which the FDA cited a need for more rigorous evidence.
Subscribe to ClinicaSpace
Clinical trial results, research news, the latest in cancer and cell and gene therapy, in your inbox every Monday
THE LATEST
Papzimeos is the first immunotherapy approved for recurrent respiratory papillomatosis, a rare lung disorder involving the development of benign tumors in the airways.
Insmed’s Brinsupri is the first DPP1 inhibitor approved by the FDA and the first treatment for bronchiectasis to reach the market.
Arguably the FDA’s most anticipated decision this month is for a subcutaneous induction formulation of Biogen and Eisai’s Alzheimer’s drug Leqembi, which, according to Eisai, could “help reduce the burden on healthcare professionals and patients.”
After exiting the FDA less than two weeks ago for unclear reasons, Vinay Prasad is once again director of the Center for Biologics Evaluation and Research, HHS confirmed to several outlets Saturday.
The small molecule drug, acquired by Jazz Pharmaceuticals in its $935 million Chimerix pick-up this spring, is intended for relapsed adult and pediatric patients with H3 K27M mutations.
In an open letter, 22 experts who designed and ran Replimune’s Phase III IGNYTE trial answered the FDA’s issues, as outlined in the complete response letter for the melanoma candidate RP1.
According to reporting from multiple outlets, Richard Pazdur, head of the Oncology Center of Excellence at CDER, opposed the consensus opinion of CBER staff to approve the drug. Replimune’s stock has dropped precipitously since the rejection.
Sarepta and Capricor learned of key regulatory decisions from the media and investors, and Duchenne muscular dystrophy families have turned to the news for answers. Meanwhile, the FDA insists it remains committed to notifying companies of any regulatory action before sharing information with the media or public.
The FDA greenlit multiple new drugs this month and issued some notable label expansions, including for Eli Lilly’s Kisunla. Meanwhile, the regulator turned away a cell therapy for Duchenne muscular dystrophy and a gene therapy for the rare disease Sanfilippo syndrome.
As analysts parsed news of Vinay Prasad’s ouster, worries over drug approval delays, cell and gene therapy impacts and more were top of mind.