Impurity Profiling of Solid Oral Drug Products to Sail through GDUFA-II Requirements

Defining impurity profile is key element to ensure safe, efficacious and quality human drugs. Impurity profiling changed/transformed drastically over the years. Guidelines, specifications and requirements are evolving. Initially impurity profiling was based on simple methods later by degradation studies, then to understand drug strength and efficacy chiral impurities and stereo isomers were included followed by residual solvents, polymorphic forms, genotoxic impurity studies. Currently, elemental impurities are the latest addition. As per the GDUFA II guidelines to improve review efficiency and reduce review cycles, data requirements have changed. Based on recent guidance and review points, Impurity profiling has significant importance in ANDA filing and to ensure approval within 10 months (first cycle approval) which is an exiling aspect for industries to enter into the generic market quickly. Hence, Impurity profile is a key aspect scientifically, regulatory wise and commercially also. This is a review article on impurity profiling of Solid oral drug substances and products as per GDUFA II requirements the reference documents for the review are ICH guidance, relevant FDA GDUFA guidance and common industry practices.

企业付费法案与仿制药产业发展

目的:研究美国FDA如何借助企业付费的方法来应对药品生产、供应全球化和不断增长的工作量的挑战,以便提高药品可及性和缓解药品短缺。方法:根据美国FDA、国会和政府问责办公室的资料及业界报告等,分析企业付费对保证药品安全性、可及性和监管机构透明度方面的作用。结果:采取公开、整体性的企业付费方式,有助于加速仿制药审评、实现海内外生产设施检查频率一致、保障药品的可及性和安全性及增加监管透明度。结论:仿制药企业付费法案对推动政企合作,合理利用企业资源,解决监管机构、产业界和利益攸关方共同面对的棘手问题,推动全球化时代药品监管方式的转变,提供了一条可行的途径。