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.
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Draft guidance, issued by the FDA last week, could remove ambiguity and uncertainty that may have so far limited uptake of new approach methodologies, experts told BioSpace,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.
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As with recent rejections for Biogen and Scholar Rock, manufacturing issues stymied a regulatory bid from Fortress Biotech and Sentynl Therapeutics. Fortress said the FDA did not flag problems with the drug’s safety or efficacy.
Due to policies regarding industry user fees, the FDA will not be able to accept any new drug applications for the duration of the government shutdown, according to Leerink Partners.
The first oral BTK blocker for chronic spontaneous urticaria, Rhapsido offers a more convenient treatment option for patients who still show symptoms after antihistamine treatment.
Without naming Aurinia Pharmaceuticals, the CDER director in a now-deleted LinkedIn post claimed that for lupus nephritis, companies have not conducted post-approval studies “to demonstrate a benefit on hard clinical endpoints.”
The FDA in September issued two rejections for spinal muscular atrophy therapies—both linked to manufacturing problems—and granted approvals in Barth syndrome and for a subcutaneous version of Merck’s Keytruda that could be key to the blockbuster’s future earnings.
By publishing complete response letters as soon as they are issued to drug sponsors, the FDA is expanding transparency in a way that, while positioned as a public health measure, also grants investors greater visibility into regulatory decisions. Experts question whether this is the agency’s proper remit.
From more than 30 target action dates in the last three months of the year, BioSpace has narrowed the list to six regulatory decisions that could have far-reaching implications for biopharma and patients.
In one of the first demonstrations of the impact of last year’s Loper Supreme Court decision on challenges to agency authority, a judge ruled that the FDA does not have authority to regulate tests developed by clinical laboratories.
Phase III data showed that Inluriyo improves progression-free survival versus standard endocrine therapy.
The regulatory greenlight was backed by two Phase III trials that showed normalized growth hormone levels in patients with the rare pituitary condition. It’s the first approval for Crinetics Pharmaceuticals and something CEO Scott Struthers predicted “will transform people’s lives.”