Good Laboratory Practice

Good Laboratory Practice (GLP) is a managerial quality control system used for planning, performing, reporting, and auditing non-clinical health and environmental safety studies. It provides a framework to ensure that safety data for chemicals and pharmaceuticals is reliable, reproducible, and auditable by regulatory bodies.

The scope and application of GLP standards

GLP applies to safety evaluations conducted on test systems, such as live organisms, including studies on acute toxicity or carcinogenicity. The system maintains data integrity through standardized written procedures, trained personnel, and independent oversight. These requirements ensure that regulatory authorities can fully reconstruct and audit the study records years after the work is completed.

Common misunderstandings regarding GLP and peptide testing

• GLP usually does not cover the chemistry-based purity or identity testing of a manufactured batch.
• Describing a peptide as 'GLP-tested' for purity is a category error, as GLP is a safety study framework rather than an analytical purity standard.
• GLP is frequently confused with GLP-1 (Glucagon-Like Peptide-1), which is a physiological hormone and drug class for diabetes and obesity, not a laboratory standard.
• GMP (Good Manufacturing Practice) governs the consistency of product manufacturing, which is distinct from the safety study focus of GLP.
• ISO 17025 is the appropriate standard for general analytical testing laboratories, whereas GLP is specific to non-clinical safety research.

Sources

1. GMP vs. GLP in Laboratory Testing & Validation
3. Glucagon-Like Peptide-1 Receptor Agonists - StatPearls - NCBI - NIH
4. Comparison Chart of FDA and EPA
5. Comparison Chart of FDA and EPA Good Laboratory Practice (GLP ...
6. Nonclinical Laboratory Studies – Food and Drug Administration – 21 CFR Part 58 – Quality Assurance
7. Good Laboratory Practice (GLP) Mark Seaton Ph.D., DABT
8. Current Perspectives on GLP-1 Agonists in Contemporary Clinical Practice from Science and Mechanistic Foundations To Optimal Translation
9. Definitions | FDA
10. Review and comparison of quality standards, guidelines and regulations for laboratories
11. Reference Standards to Support Quality of Synthetic Peptide Therapeutics - PMC
12. Good Laboratory Practice and Compliance Monitoring | OECD
13. Good Laboratory Practice (GLP): An Overview for the Analytical Chemist | LCGC International
14. The Analytical Scientist | Analysis and Characterization of GLP-1 Peptides
15. Ensuring GLP potency and purity
16. GLP & cGMP Terms: Research Sourcing | PurePep Vital
17. GMP, GLP or ISO 17025: How Do These Apply to ...
18. 21 CFR Part 58: A Guide to Good Laboratory Practice (GLP) | IntuitionLabs