FDA
Following the FDA’s refusal to review Moderna’s investigational mRNA flu vaccine last week, Commissioner Marty Makary faced questions from the U.S. president about the agency’s handling of vaccines. It’s a clear signal that the tension long brewing at the drug regulator has now gone all the way to the top.
The FDA’s drug review process can often be “unpredictable,” and review teams typically “differ greatly” in what they ask of drug sponsors, Sen. Bill Cassidy said.
FDA vouchers are normally a coveted prize for biopharma companies, but a surprise rejection for Disc Medicine’s rare disease drug has biopharma reconsidering.
The FDA outright refuses to review Moderna’s mRNA-based flu vaccine as CBER director Vinay Prasad’s conduct is scrutinized; Disc Medicine receives an unexpected rejection, which Prasad may also have had a hand in; Compass Pathways posts new late-stage data on its psilocybin-based depression drug; CDC is once again leaderless.
Long an R&D company that partnered off assets, RNAi biotech Ionis Pharmaceuticals shifted in 2025 to bring two medicines to market alone. Analysts are already impressed—and there’s more to come in 2026.
Disc Medicine’s leadership tried to express optimism that its rare disease therapy bitopertin can be approved based on a Phase 3 trial set to begin shortly. However, analysts are worried that the protocol was developed with former FDA leaders.
The FDA’s refusal to review Moderna’s mRNA-based flu vaccine is “part of a disturbing pattern” of moving regulatory goalposts, according to Clay Alspach, executive director of the Alliance for mRNA Medicines. Meanwhile, streamlined communications with regulators in other countries pave the way for rapid uptake of novel modalities.
The FDA in October 2025 granted bitopertin its Commissioner’s National Priority Voucher but after a shortened review time has decided the data did not support regulatory approval for treating erythropoietic protoporphyria.
Moderna will not commit to previous 2028 breakeven guidance as the ripple effects of the FDA’s refusal-to-file decision spread through its pipeline.
Moderna’s mRNA-1010 was expected to contribute $1 billion to the company’s coffers by 2028. That plan is now out the window after the FDA refused to even look at the application.
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