How to Build a Compliant Literature Search String for Pharmacovigilance: Why Most Teams Get It Wrong
Ask ten pharmacovigilance (PV) teams to show you the exact Boolean search string used last week to monitor their flagship product, and most will struggle to produce it. They can produce the screening log, the case decisions, even the final ICSRs , but the literal query string, with all its operators, indexed terms, and database-specific syntax, often lives in someone’s PubMed account or a saved Embase session that no auditor can reproduce on demand. This is the gap that turns an otherwise sound PV program into an inspection finding. The search string is not just a technical artefact. It is the foundation on which every downstream decision rests, and regulators have started treating it that way. Why the Search String Is a Regulated Artifact, Not a Tool Setting Under EMA’s Good Pharmacovigilance Practices Module VI, marketing authorisation holders are required to monitor scientific and medical literature systematically, at a minimum on a weekly cadence, using widely indexed databa...