Mallinckrodt Stannsoporfin Complete Response Letter
FDA has issued a complete response letter (CRL) for Mallinckrodt’s stannsoporfin, a heme oxygenase inhibitor under investigation for treating newborns with indicators of hemolysis who are at risk of developing severe jaundice. The company says the agency provided guidance about areas of further evaluation for resubmitting the stannsoporfin NDA. Company officials said the CRL was not unexpected given the outcome at a recent advisory committee meeting and said they will request a meeting with agency officials in the coming months to discuss potential paths forward.