Guidelines for Stability Testing of Cell Therapy Products as per ICH Q5A
1) Purpose
The purpose of this Standard Operating Procedure (SOP) is to provide guidelines for conducting stability testing for cell therapy products in accordance with the ICH Q5A guidelines. This SOP ensures that stability data supports the quality, safety, and efficacy of cell therapy products throughout their shelf life.
2) Scope
This SOP applies to all personnel involved in the design, execution, and documentation of stability studies for cell therapy products intended for global markets.
3) Responsibilities
Stability Testing Team: Responsible for conducting stability studies and documenting results in compliance with ICH Q5A guidelines.
Quality Assurance (QA) Team: Responsible for reviewing and approving stability study protocols and reports.
Regulatory Affairs Team: Responsible for ensuring that stability studies meet the regulatory expectations of target markets.
4) Procedure
4.1 Preparation for Stability Testing
4.1.1 Obtain and review the latest ICH
4.1.2 Develop a stability protocol specific to cell therapy products, including study design, testing schedule, storage conditions, and testing parameters as per ICH Q5A guidelines.
4.2 Selection of Batches and Samples
4.2.1 Select representative batches of the cell therapy product, typically three primary batches manufactured using the proposed production process.
4.2.2 Prepare sufficient samples to cover the entire study duration, considering the number of time points and tests to be conducted.
4.3 Defining Storage Conditions and Time Points
4.3.1 Define the storage conditions according to ICH Q5A guidelines, including temperature controls relevant to the product.
4.3.2 Establish the time points for sampling, such as 0, 3, 6, 9, 12, 18, and 24 months for long-term studies, and additional time points for accelerated studies.
4.4 Conducting Stability Tests
4.4.1 Store samples under the defined conditions, ensuring they are protected from conditions that could degrade their stability.
4.4.2 At each specified time point, remove samples and conduct stability-indicating tests, including viability, potency, purity, and biological activity tests, as applicable.
4.4.3 Record all results meticulously in stability data sheets, ensuring accuracy and traceability of data.
5) Abbreviations, if any
ICH: International Council for Harmonisation
QA: Quality Assurance
6) Documents, if any
Stability protocol, stability data sheets, stability testing records, stability report, submission package to regulatory authorities.
7) Reference, if any
ICH Q5A: Stability Testing of Biotechnological/Biological Products.
8) SOP Version
Version 1.0