Current Industry Best Practice on in-use Stability and Compatibility Studies for Biological Products

Area of Science:

• Biopharmaceutical stability and drug delivery systems
• Protein-based biologics characterization
• Regulatory science and compliance

Background:

• Biological products often require dilution and contact with administration components (IV bags, syringes, tubing) before patient use.
• Assessing in-use stability is critical for defining safe handling procedures and storage conditions.
• Limited global regulatory guidance exists for in-use stability studies of biologics.

Purpose of the Study:

• To review and consolidate industry approaches for assessing the physicochemical stability of protein-based biologics during use.
• To provide insights for designing in-use stability studies and informing regulatory discussions.
• To establish best practices for handling instructions and hold times for biological drug products.

Main Methods:

• A working group reviewed and synthesized industry practices for in-use stability assessments.
• Focus on physicochemical stability of traditional protein-based biological products.
• Consideration of representative drug product materials, administration components, testing conditions, quality attributes, and acceptance criteria.

Main Results:

• Consolidated insights cover study design elements, including material selection, testing parameters, and quality attribute evaluation.
• Identified key topics such as representative administration components, testing conditions, and quality standards.
• Practices encompass defining appropriate hold times and handling instructions to ensure product quality.

Conclusions:

• The compiled insights offer a valuable resource for biopharmaceutical companies designing in-use stability studies.
• Standardized approaches can enhance the consistency and reliability of stability data.
• This review facilitates informed discussions with global regulatory agencies regarding in-use stability requirements.