Warning Letter ‘Top 10’ GMP Deficiencies
An analysis by the Germany-based ECA Academy of 42 FY 2022 FDA Warning Letters has identified the top 10 most frequently cited good manufacturing practice deficiencies. The 10 listed are:
- responsibilities of the quality control unit (cited in 23 letters);
- product record review (19 citations);
- testing and release for distribution (17);
- deviations from written procedures (16);
- testing and approval or rejection of components, drug product containers, and closures (14);
- equipment cleaning and maintenance (13);
- stability testing (11);
- general requirements (10);
- automatic, mechanical, and electronic equipment (8);
- design and construction features (4);
- control of microbiological contamination (4); and
- batch production and control records (4).