Mfr. Deficiencies Hamper 1st Cycle ANDA Reviews
FDA says manufacturing-related deficiencies contribute significantly to a low rate of ANDA approvals for modified-release tablet products during the first review cycle. Writing in the 9/28 issue of the journal AAPS PharmSciTech, CDER researchers said only 12% of such products were approved first cycle between fiscal years 2017 to 2019. Of the 88% (169 ANDAs) that received a complete response letter, 91% were found inadequate for multiple review disciplines.
In their analysis, the researchers found that 1,345 drug product manufacturing process-related deficiencies were issued to 184 ANDAs during the first review cycle. “The top deficiencies cited reasons include facilities are out of compliance/not ready to commercialize/not ready for inspection; critical process parameter (CPP) ranges are not proposed/proposed CPP ranges are too wide and/or not supported by studied range and no in-process controls (IPCs) are proposed/proposed IPCs acceptance criteria (limits) are too wide and/or not supported by observed data etc.,” they wrote.
The researchers concluded that avoiding common drug product manufacturing deficiencies may reduce the need for issuing manufacturing-related deficiencies in information requests, discipline review letters, and complete response letters for modified-release tablet ANDAs.