Q8: Pharmaceutical Development

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Q8: Pharmaceutical Development

Pharmaceutical development, as described in ICH Q8 (R2), is the process of designing a quality product and its manufacturing process to consistently deliver the intended performance. The goal is to understand how formulation and process variables influence product quality, thereby establishing a design space and enabling a Quality by Design (QbD) approach.

Key elements of pharmaceutical development include:

  1. Drug Substance Characterization: Understanding physicochemical properties, polymorphism, solubility, stability, and compatibility.

  2. Excipients Selection: Justifying the choice, functionality, and compatibility with the drug substance.

  3. Formulation Development: Establishing a formulation that ensures consistent quality, efficacy, and stability.

  4. Manufacturing Process Development: Identifying critical process parameters (CPPs) and their effect on critical quality attributes (CQAs).

  5. Container Closure System: Ensuring it maintains product stability and integrity throughout shelf life.

  6. Microbiological Attributes: Determining sterility or microbial limits as per dosage form requirements.

  7. Analytical Method Development: Developing robust and validated methods to test product quality.

Pharmaceutical development provides the scientific foundation for establishing a control strategy and ensures product performance consistency throughout its lifecycle.

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