Standard Operating Procedure for Approval of Analytical Methods and Specifications in API Manufacturing
| Department | API Manufacturing |
|---|---|
| SOP No. | SOP/API/191/2025 |
| Supersedes | SOP/API/191/2022 |
| Page No. | Page 1 of 16 |
| Issue Date | 14/04/2025 |
| Effective Date | 16/04/2025 |
| Review Date | 14/04/2026 |
1. Purpose
To establish a systematic procedure for the review, verification, and approval of analytical methods and product specifications used in the testing of raw materials, intermediates, and Active Pharmaceutical Ingredients (APIs) to ensure consistency, compliance, and regulatory adherence.
2. Scope
This SOP applies to all analytical methods and product
specifications intended for routine quality control testing within the API manufacturing site. It covers pharmacopeial methods, in-house validated methods, compendial adaptations, and specification documents for testing.
3. Responsibilities
- Analytical Development Team: Prepares new or revised analytical methods and specifications.
- QC Department: Verifies method feasibility, suitability, and performance.
- QA Department: Reviews and approves methods and specifications for compliance, validation status, and clarity.
4. Accountability
The Head of Quality Assurance is accountable for the final approval and implementation of analytical methods and product specifications across all applicable departments.
5. Procedure
5.1 Method/Specification Submission
- The Analytical Development or QC department shall submit the proposed analytical method/specification to QA using the Method Approval Request Form (Annexure-1).
- Each method or specification must include:
- Title, version number, and effective date
- Scope and purpose
- Equipment and reagents required
- Procedure and calculation formula
- Acceptance criteria
5.2 Initial Review by QC
- QC shall verify method suitability through system suitability tests, precision, accuracy, and robustness (if required).
- A Method Verification Report shall be attached for non-compendial methods or any modified pharmacopeial method (Annexure-2).
5.3 Review by QA
- QA shall conduct a detailed review based on the Method and Specification Review Checklist (Annexure-3), checking for:
- Validation/verification data completeness
- Correct terminology and nomenclature
- Alignment with pharmacopoeial monograph (if applicable)
- Clear and reproducible test instructions
- Defined limits and interpretation criteria
- For specifications, cross-check limits with historical data and regulatory commitments.
- All comments and feedback must be documented in the QA Review Comment Sheet (Annexure-4).
5.4 Final Approval
- Upon satisfactory review, QA shall:
- Sign the Method/Specification Approval Sheet (Annexure-5)
- Issue an internal method reference number
- Update the Method and Specification Master Register (Annexure-6)
- Controlled copies shall be distributed to relevant departments.
5.5 Revision and Change Control
- All revisions to analytical methods/specifications must be submitted through a formal Change Control Request (CCR).
- Each new version shall be reviewed and approved as per this SOP.
- Obsolete versions shall be stamped “Superseded” and archived in the QA Documentation Room.
6. Abbreviations
- API: Active Pharmaceutical Ingredient
- QA: Quality Assurance
- QC: Quality Control
- SOP: Standard Operating Procedure
- CCR: Change Control Request
7. Documents
- Method Approval Request Form (Annexure-1)
- Method Verification Report (Annexure-2)
- Method and Specification Review Checklist (Annexure-3)
- QA Review Comment Sheet (Annexure-4)
- Method/Specification Approval Sheet (Annexure-5)
- Method and Specification Master Register (Annexure-6)
8. References
- ICH Q2(R1) – Validation of Analytical Procedures
- ICH Q6A – Specifications: Test Procedures and Acceptance Criteria
- Ph. Eur., USP, IP – Current Editions
- 21 CFR Part 211.160 – Laboratory Controls
9. SOP Version
Version: 2.0
10. Approval Section
| Prepared By | Checked By | Approved By | |
|---|---|---|---|
| Signature | |||
| Date | |||
| Name | |||
| Designation | |||
| Department |
11. Annexures
Annexure-1: Method Approval Request Form
| Method Title | Submitted By | Version | Date |
|---|---|---|---|
| Assay by HPLC for API-X | Rajesh Kumar | 1.0 | 12/04/2025 |
Annexure-2: Method Verification Report
| Test Parameter | Result | Acceptance Criteria | Status |
|---|---|---|---|
| Precision | 0.85% | ≤ 2% | Pass |
| Linearity | R² = 0.9992 | ≥ 0.999 | Pass |
Annexure-3: Method and Specification Review Checklist
| Review Parameter | Compliant (Y/N) | Remarks |
|---|---|---|
| Acceptance Criteria Defined | Yes | Clearly stated |
| Reference Standards Specified | Yes | USP Reference Used |
Annexure-4: QA Review Comment Sheet
| Observation | Corrective Action | Responsible | Date Closed |
|---|---|---|---|
| Incomplete units on assay formula | Added % w/w | QC | 13/04/2025 |
Annexure-5: Method/Specification Approval Sheet
| Title | Version | Approved By | Approval Date |
|---|---|---|---|
| HPLC Assay for API-X | 1.0 | QA Head | 14/04/2025 |
Annexure-6: Method and Specification Master Register
| Method ID | Title | Version | Effective Date | Status |
|---|---|---|---|---|
| AM-HPLC-001 | HPLC Assay for API-X | 1.0 | 16/04/2025 | Active |
Revision History:
| Revision Date | Revision No. | Details | Reason | Approved By |
|---|---|---|---|---|
| 01/01/2022 | 1.0 | Initial SOP | New Procedure | QA Head |
| 14/04/2025 | 2.0 | Integrated CCR and verification step | GMP Update | QA Head |