Do Not Reprocess Materials Without QA-Approved Protocol in GMP

Never Reprocess Materials Without QA-Approved GMP Protocol

Remember: GMP strictly prohibits material reprocessing unless it is pre-approved by QA through a validated, documented protocol.

Why This Matters in GMP

Reprocessing refers to the introduction of intermediate or final product back into the process due to failure to meet certain specifications—without altering the original formulation. While GMP allows reprocessing under specific, controlled conditions, it can only be performed after a detailed investigation and approval from Quality Assurance. Uncontrolled or undocumented reprocessing risks introducing variability, cross-contamination, or degradation of the product, ultimately affecting safety and efficacy. Unauthorized reprocessing also undermines batch traceability and can invalidate manufacturing records.

Also Read: Never Share Passwords for Access-Controlled GMP Data Systems

Regulatory and Compliance Implications

FDA 21 CFR Part 211.115 permits reprocessing only when there are written procedures, validation, and QA authorization. EU GMP Chapter 5 emphasizes that reprocessing is not to be routinely accepted and must undergo full evaluation with risk assessment. WHO GMP and Schedule M mandate full documentation of reprocessing activities, including rationale, validation data, and QA sign-off. During inspections, auditors review deviation reports, change controls, and QA decisions linked to reprocessed batches. Reprocessing without an approved protocol can lead to warning letters or rejected product lots.

Implementation Best

Practices

Define reprocessing criteria and procedures in an SOP approved by QA and Regulatory Affairs.
Investigate the root cause of the deviation and assess the potential impact on product quality.
Document a reprocessing protocol detailing steps, critical parameters, and acceptance criteria.
Obtain QA approval before executing the reprocessing activity and perform effectiveness verification.
Record all steps in the batch record and link them with deviation and CAPA documentation.

Regulatory References

FDA 21 CFR Part 211.115 – Reprocessing Procedures
EU GMP Chapter 5 – Handling of Non-Conforming Products
WHO GMP – Product Reprocessing Guidelines
Schedule M – Reprocessing Control and Documentation