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Draft guidance, issued by the FDA last week, could remove ambiguity and uncertainty that may have so far limited uptake of new approach methodologies, experts told BioSpace,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
CDER Director George Tidmarsh said on two separate events last week that he thought advisory committee meetings for specific drug applications were redundant, but then denied having said the agency would abandon them.
On the FDA’s docket for the back half of September is Merck’s proposed subcutaneous formulation of its blockbuster cancer drug Keytruda.
After receiving a complete response letter for its pyruvate dehydrogenase complex deficiency candidate, Saol Therapeutics anticipates it will need “several years” and “significant financial resources” to address the FDA’s concerns.
While a win for consumers, the regulatory action did nothing to stem the manufacture of compounded versions of the popular obesity drugs that are made by Novo Nordisk and Eli Lilly. In fact, the FDA seems to be signaling that “some level of compounded product is acceptable,” according to BMO Capital Markets.
New FDA expert panels, such as recent meetings on SSRI use during pregnancy and on hormone replacement therapy during menopause, are drawing criticism for being one-sided. One leader says such panels are designed to reach a specific conclusion.
Amid an unprecedented turnover in leadership at the FDA and mass layoffs of staff, communication has crumbled and uncertainty runs rampant, leaving small and medium biopharma companies without a clear path forward for their therapies.
Perhaps the most interesting of the pile of FDA rejection letters was for Lykos Therapeutics’ MDMA therapy. Letters sent to Stealth BioTherapeutics, Regeneron and more were also released as the agency also promised future CRLs “promptly after they are issued to sponsors.”
While the new framework signals continued flexibility at the FDA regarding rare disease approvals, some analysts and advocates question what tangible impacts the new guidelines will have.
In a series of memos last week, Center for Biologics Evaluation and Research Director Vinay Prasad outlined the FDA’s thinking on the recent limited approvals for updated COVID-19 vaccines.
Paul Offit, longtime member of the FDA’s vaccine advisory committee and an outspoken critic of Health Secretary Robert F. Kennedy Jr., was recently informed by the Department of Health and Human Services that his services are no longer required.