Post-Authorization Safety Studies (PASS): A Regulatory Imperative After Approval
Marketing authorization does not end a medicine’s safety evaluation. Once products enter real-world use, broader patient exposure and long-term treatment can reveal risks not fully identified in clinical trials. Regulators therefore rely on Post-Authorization Safety Studies (PASS) to address post-approval safety uncertainties. PASS are structured pharmacoepidemiological or clinical studies conducted to evaluate identified or potential risks, assess risk-minimization effectiveness, and generate real-world safety evidence. Across the EU, US, UK, and other major markets, mandatory PASS are now embedded in regulatory frameworks and enforced as legally binding obligations. Authorities increasingly assess not only study outcomes, but also protocol governance, reporting discipline, and inspection readiness. As a result, PASS has evolved from a post-approval formality into a critical component of lifecycle pharmacovigilance and approval sustainability. Read in detail here: Post-Authorization S...