Comparative Review of Clinical Trial Regulations in Different Countries: Current Scenario and Future Prospect.

Introduction/objective: Clinical trial regulations (CTR) are essential for ensuring the safety, efficacy, and ethical conduct of drug development. However, the regulatory frameworks governing these trials vary significantly across different countries, affecting approval processes, trial conduct, and drug development timelines. This review examines the differences in clinical trial regulations in the USA, EU, Australia, and India between 2016 and 2024.