Quality
Peptide API Quality Documentation: What Procurement and QA Need to Review

Peptide API quality documentation is a critical component of supplier evaluation. Procurement and QA teams rely on these documents to verify that the supplier meets quality standards and regulatory requirements. This article outlines the key documents to request and review.
A certificate of analysis (CoA) is the primary document summarizing test results for a specific batch. It should include tests, specifications, methods, and results. QA teams should verify that the CoA is signed and dated, and that it references the correct batch number and specifications.
Batch records provide a detailed account of the manufacturing process for each batch. They include step-by-step records, in-process controls, and deviations. Procurement should ensure that batch records are complete and that deviations are properly investigated and documented.
Stability data demonstrate that the peptide API remains within specifications over time under defined storage conditions. Suppliers should provide stability protocols, data tables, and conclusions. QA teams should review the data to confirm shelf-life claims and storage recommendations.
Regulatory support documents include statements of compliance, DMF references, and responses to regulatory inquiries. While suppliers may not share all details, they should provide adequate information to support filings. Procurement should confirm that the supplier has experience with regulatory submissions.
Quality agreements and technical agreements define responsibilities between the supplier and buyer. These documents should cover quality systems, change control, audits, and communication. QA teams should review these agreements to ensure they align with company requirements.
Additional documents include method validation reports, impurity profiles, and elemental impurity risk assessments. These support the overall quality package. Procurement should request a documentation checklist to ensure completeness.
In summary, peptide API quality documentation is essential for informed decision-making. By reviewing these documents, procurement and QA teams can assess supplier reliability and ensure compliance with regulatory standards.