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flag FDA halts review of CUTX-101 for pediatric Menkes disease due to manufacturing issues, despite positive results.

flag The FDA issued a Complete Response Letter for CUTX-101, a treatment for pediatric Menkes disease, citing manufacturing deficiencies at the production facility, though it did not question the drug’s safety or efficacy. flag The decision, which halted the Priority Review, follows a September 2025 re-inspection. flag Sentynl Therapeutics, now overseeing development, plans to address the issues and resubmit the application. flag The drug showed positive clinical results, improving survival in early-treated patients. flag If approved, Sentynl will transfer a Rare Pediatric Disease Priority Review Voucher to Cyprium Therapeutics, which is also eligible for royalties and up to $129 million in milestone payments.

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