Creams: SOP for Approval of Stability Study Protocols – V 2.0
Standard Operating Procedure for Approval of Stability Study Protocols
| Department |
Creams |
| SOP No. |
SOP/CRM/194/2025 |
| Supersedes |
SOP/CRM/194/2022 |
| Page No. |
Page 1 of 6 |
| Issue Date |
21/01/2026 |
| Effective Date |
26/01/2026 |
| Review Date |
21/01/2027 |
1. Purpose
The purpose of this SOP is to define the procedure for the approval of stability study protocols for cream products. Ensuring that stability studies are conducted according to approved protocols is critical to determining the shelf life and ensuring the quality and safety of the product over time.
2. Scope
This SOP applies to the approval of stability study protocols for all cream products under development, as well as those undergoing re-evaluation for market extension or regulatory submission. It ensures that stability studies are conducted according to regulatory requirements and internal standards.
3. Responsibilities
- Research and Development (R&D) Team: Responsible for preparing the stability study protocol, including the selection of parameters, conditions, and test methods to be used in the study.
- Quality Assurance (QA) Team: Responsible for reviewing and approving the stability study protocol to ensure it meets internal quality standards and regulatory requirements.
- Regulatory Affairs Team: Responsible for ensuring that the stability study protocol complies with applicable regulatory guidelines
for product registration and submission.
Production Team: Responsible for providing necessary batch details and manufacturing conditions that are used in stability studies.
4. Accountability
The QA Manager is accountable for the approval process of stability study protocols. The R&D Manager is responsible for preparing the protocol, while the Regulatory Affairs Manager ensures compliance with relevant regulatory guidelines.
5. Procedure
5.1 Stability Study Protocol Preparation
- The R&D team prepares the stability study protocol, which should include:
- The objective of the study
- The product(s) to be tested (cream product name, batch number)
- The testing conditions (e.g., temperature, humidity, light exposure)
- The storage conditions (e.g., storage containers, packaging type)
- The time points at which samples will be tested
- The parameters to be tested (e.g., appearance, viscosity, pH, microbial load, packaging integrity)
- The testing methods and specifications for each parameter
- The protocol should also define the expected duration of the study, based on the product’s intended shelf life and regulatory requirements.
5.2 Protocol Review and Approval
- The completed protocol is submitted to the QA team for review.
- The QA team will verify that the stability study protocol complies with internal quality standards, industry best practices, and regulatory requirements. This includes checking the following:
- Test parameters are appropriate for the product
- Test methods are scientifically validated
- Time points for testing are sufficient to assess product stability
- Packaging and storage conditions are reflective of real-world conditions
- If the protocol meets all requirements, the QA team will approve the stability study protocol. If modifications are necessary, the protocol will be returned to the R&D team for revision.
- The approved protocol will be signed off by the QA Manager, R&D Manager, and Regulatory Affairs Manager.
5.3 Regulatory Compliance Check
- The Regulatory Affairs team will review the stability study protocol to ensure that it meets the regulatory guidelines of the applicable markets (e.g., FDA, EMA).
- If the study is to be submitted to a regulatory body, the protocol must adhere to specific regulatory requirements for the stability testing of cosmetic or pharmaceutical products.
- The Regulatory Affairs team will provide a compliance report to the QA team after reviewing the protocol.
5.4 Stability Study Execution
- Once the stability study protocol is approved, the R&D and Production teams will initiate the stability study according to the approved protocol.
- The stability study will be conducted over the designated time period, with testing performed at the specified time points.
- All testing results will be documented, and deviations from the protocol will be recorded and addressed according to internal deviation handling procedures.
5.5 Documentation and Reporting
- Upon completion of the stability study, the results will be compiled into a final stability report, which will include:
- A summary of the study conditions and methodology
- The results of the testing at each time point
- A comparison of the results with the predefined specifications
- Any deviations or issues encountered during the study
- Recommendations regarding the product’s shelf life and stability
- The stability report will be submitted to the QA team for review and approval.
- The final approved stability report will be archived and accessible for regulatory submissions, audits, and further analysis.
5.6 Requalification of Stability Study Protocols
- If there are any changes to the formulation, manufacturing process, packaging, or storage conditions, the stability study protocol must be revised and re-qualified.
- The updated protocol will follow the same review and approval process as the original protocol, including QA, R&D, and Regulatory Affairs team evaluations.
6. Abbreviations
- GMP: Good Manufacturing Practices
- QA: Quality Assurance
- QC: Quality Control
- SOP: Standard Operating Procedure
- R&D: Research and Development
- CAPA: Corrective and Preventive Action
7. Documents
- Annexure-1: Stability Study Protocol Template
- Annexure-2: Stability Study Report Template
- Annexure-3: Regulatory Compliance Check Report
8. References
- Good Manufacturing Practices (GMP) Guidelines – 21 CFR Part 211
- International Conference on Harmonisation (ICH) Q1A – Stability Testing of New Drug Substances and Products
- FDA Guidance for Industry: Stability Testing of Drug Products
9. SOP Version
Version: 2.0
10. Approval Section
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Checked By |
Approved By |
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11. Annexures
Annexure-1: Stability Study Protocol Template
| Study Objective |
Product Name |
Testing Conditions |
Test Methods |
Time Points |
| To determine the shelf life of Vanilla Cream |
Vanilla Cream |
25°C/60% RH |
Viscosity, pH, Microbial Load |
0, 3, 6, 12 months |
Annexure-2: Stability Study Report Template
| Study Overview |
Testing Results |
Recommendations |
| Summary of study conditions and methodology |
Viscosity: Pass, pH: Pass, Microbial Load: Pass |
Product shelf life: 12 months |
Annexure-3: Regulatory Compliance Check Report
| Regulatory Agency |
Regulatory Requirement |
Compliance Status |
Comments |
| FDA |
Stability testing for 12 months |
Compliant |
Complies with FDA regulations |
Revision History:
| Revision Date |
Revision No. |
Revision Details |
Reason for Revision |
Approved By |
| 01/03/2024 |
1.0 |
Initial Version |
New SOP Creation |
QA Head |
| 01/03/2025 |
2.0 |
Format Revision and Updates |
Standardization of Document |
QA Head |