Master Chemistry, Manufacturing, and Controls (CMC) strategies across the complete drug development lifecycle from preclinical studies through commercial manufacturing. This comprehensive guide explores CMC evolution through Phase 1, 2, and 3 clinical trials, addressing manufacturing scale-up challenges, process validation requirements, and comparability studies. Understand fundamental differences between small molecule and biologics CMC, including synthetic route development, cell line characterization, and the critical "process is the product" concept. Discover specialized CMC requirements for combination products, advanced therapy medicinal products (ATMPs) including gene and cell therapies, generic drugs, and biosimilars. Learn risk-based approaches for regulatory submissions, post-approval change management, and lifecycle optimization strategies that ensure pharmaceutical quality, safety, and regulatory compliance across global markets.