Introduction: Building the Foundation for CMC Success
In the competitive and fast-moving pharmaceutical landscape, early decisions in Chemistry, Manufacturing, and Controls (CMC) can profoundly impact a drug’s trajectory—from first-in-human studies to regulatory approval and commercialization. While early development is often challenged by limited active pharmaceutical ingredient (API) availability and sparse data, it remains a critical window to shape the scientific and strategic foundation for downstream success.

This paper introduces a practical and scientifically grounded framework for early-phase CMC development. It addresses key elements such as preformulation, scalable formulation strategies, Quality by Design (QbD), analytical method development, and risk management. The goal is to guide innovators in making informed, phase-appropriate choices that reduce risk and enable smoother transitions into later development stages.