Standard Operating Procedure for Managing Out of Specification Results in Pharmaceuticals

This document serves as a standard operating procedure (SOP) for managing out of specification (OOS) results encountered during the analysis of pharmaceutical products. Proper handling of OOS results is critical to maintaining product quality and compliance with regulatory standards.

Purpose of the SOP

The primary goal of this SOP is to establish a clear and consistent framework for addressing OOS results that arise during quality control testing. It is essential to identify, investigate, and resolve any discrepancies to ensure the integrity of pharmaceutical products.

Applicability

This SOP applies to the Quality Control Laboratory and covers OOS results for raw materials, packaging materials, and finished products specifically concerning releasing parameters. It does not pertain to informative parameters.

Roles and Responsibilities

Quality Control Analyst

• Responsible for notifying the quality control in-charge upon identifying OOS results.

Quality Control In-Charge

• Issues the OOS investigation form after documenting the incident in the OOS logbook.
• Conducts a thorough investigation into the OOS results.

Quality Head

• Reviews and verifies the OOS investigation form at each stage, providing final conclusions regarding the material's status.

Procedural Steps

Upon receiving an OOS report from the analyst, the following steps should be adhered to:

1. The Quality Control In-Charge will issue the OOS form and log the incident.
2. The QC In-Charge or their designee will initiate the investigation, completing Stage A of the OOS form.
3. If Stage A results are unsatisfactory, errors must be identified and corrected, followed by reanalysis of the same sample by a different analyst.
4. Should the material pass this reanalysis, it may be released, and the initial analyst should receive retraining on identified errors.
5. If Stage A results are satisfactory, the Supervisor will assign the sample for further analysis by a senior analyst (Stage B).
6. In Stage B, if results are within specification, the original analyst will reanalyze the same sample, and an investigation into their initial findings will occur.
7. If Stage B results are also satisfactory, the material may be released.
8. Should Stage B yield unsatisfactory results, a resample will be conducted under the supervision of the Quality Head (Stage C).
9. For Stage C, re-sampling must be authorised, and subsequent analysis will occur.
10. If no prior samples exist for comparison, the material will be rejected outright.
11. Should the previously approved material pass while the current sample fails, the latter will be rejected.
12. If both pass, a second analysis will be conducted by a different analyst, followed by a review as in Stage B.
13. Documentation of the repeat analysis must be maintained, and all relevant cross-references should be attached to the OOS investigation form.
14. Final conclusions regarding rejection or approval of the material will be recorded by the Quality Head.
15. Cross-references of the OOS investigation must be included in the analytical report.

Glossary of Terms

• SOP: Standard Operating Procedure
• OOS: Out of Specification

Attachments

General details relevant to the investigation process can be found in the following tables: