In this episode, Subhi breaks down ICH Q12, the guideline focused on post-approval change management and pharmaceutical product lifecycle management. The core question behind ICH Q12 is simple: once a product is approved, what is actually binding, what is supporting information, and how should future changes be managed? This episode covers the major Q12 concepts, including reporting categories, Established Conditions, supporting information, Post-Approval Change Management Protocols, the Product Lifecycle Management document, and the role of the Pharmaceutical Quality System. Subhi also discusses why Q12 matters for drug-device combination products, where lifecycle changes may involve CMC information, device constituent parts, functional performance characteristics, and the broader control strategy. Key topics covered: Why post-approval change can become difficult after approvalHow ICH Q12 supports more predictable lifecycle managementReporting categories for post-approval CMC changesEstablished Conditions versus supporting informationExamples of EC candidates, including CQAs, CPPs, material attributes, methods, sites, and process informationWhy overcommitting or undercommitting ECs creates lifecycle riskHow PACMPs help companies plan future changesWhat belongs in the PLCM documentHow ICH Q12 applies to drug-device combination productsWhy a strong PQS is essential for making Q12 work Timestamps: 00:00 Introduction to ICH Q12 00:46 Why post-approval change gets difficult 02:45 Reporting categories 03:14 Established Conditions vs supporting information 04:10 EC examples: CQAs, CPPs, methods, sites, and process information 05:32 Post-Approval Change Management Protocols 06:38 PLCM document 08:08 Drug-device combination product callout 10:11 PQS and change management 10:28 Closing thoughts Questions or feedback? Email subhi@letscombinate.com Source referenced in this episode: ICH Q12, Technical and Regulatory Considerations for Pharmaceutical Product Lifecycle Management, Final version adopted 20 November 2019. Screenshots shown in this video are from the ICH Q12 guideline and are included for educational commentary. https://database.ich.org/sites/default/files/Q12_Guideline_Step4_2019_1119.pdf Subhi Saadeh is the Founder and Principal at Let’s Combinate, where he helps teams develop and control drug-device combination products by aligning quality systems, development, and regulatory expectations across drug and device domains. He is a consultant, auditor, trainer, and speaker with experience across Pfizer, Gilead, and Baxter, supporting the development and launch of combination products across vaccines, biologics, and generics.