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By Dr. Pramod Kr. Pandey - July 5, 2025

Dr. Pramod Kr. Pandey is a distinguished Analytical Research Expert with over three decades of extensive experience in the pharmaceutical industry. He has contributed his expertise to both leading Indian and global pharmaceutical companies, consistently driving innovation and excellence in analytical research

Both GLP and GMP are the critical pillars of regulatory compliance. GLP (Good Laboratory Practice) applies to research and development activities, ensuring quality and reliability in testing, while GMP (Good Manufacturing Practice) governs manufacturing processes to ensure product quality and safety. Each GLP and GMP plays a unique role in different phases of drug development-from […]

GLP And GMP in Pharmaceuticals: Key Differences, Applications, and 7+ FAQs

Both GLP and GMP are the critical pillars of regulatory compliance. GLP (Good Laboratory Practice) applies to research and development activities, ensuring quality and reliability in testing, while GMP (Good Manufacturing Practice) governs manufacturing processes to ensure product quality and safety.

Each GLP and GMP plays a unique role in different phases of drug development-from the laboratory bench to the production line. Adherence to these guidelines not only meets regulatory expectations but also protects patient safety, supports scientific integrity, and strengthens public trust in pharmaceutical products.

By implementing and maintaining robust GLP and GMP systems, pharmaceutical organisations can drive innovation responsibly while navigating complex regulatory landscapes with confidence.

In this article, I will discuss about comprehensive overview of GLP and GMP with key differences, requirements, examples, and FAQs.

GLP And GMP in Pharmaceuticals: Key Differences
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GLP And GMP in Pharmaceuticals: Key Differences

AspectGLP (Good Laboratory Practice)GMP (Good Manufacturing Practice)
DefinitionA quality system for non-clinical lab studiesA quality system for manufacturing and quality control of drugs
PurposeStudy plans, raw data, and final reportsEnsures consistent production and control of pharmaceuticals
Applies ToPreclinical safety testing (animals, toxicology, pharmacology)Manufacturing, packaging, labelling, and storage of drugs and biologics
Regulated ByFDA, OECD, EPAFDA, EMA, WHO
FocusStudy integrity, traceability, and data reproducibilityProduct quality, safety, and compliance
DocumentationStudy plans, raw data, final reportsBatch records, SOPs, validation records
Inspection FrequencyLess frequent, based on study typesRegular inspections, especially for marketed products
When AppliedPreclinical phase (before clinical trials)During and after product development and commercial production

GLP Requirements

  1. Standard Operating Procedures (SOPs) for all lab activities.
  2. Personnel training records and qualifications.
  3. Well-defined study protocols and final reports.
  4. Data integrity and raw data archival.
  5. Facilities & Equipment must be appropriate for studies.
  6. Quality Assurance Unit (QAU) must audit and inspect.

GMP Requirements

  1. Controlled manufacturing environment.
  2. Validated processes (cleaning, manufacturing, testing).
  3. Quality control (QC) and assurance (QA) systems.
  4. Detailed batch records and traceability.
  5. Change control and deviation management.
  6. Product recall and complaint handling procedures.

GLP Example:

A pharmaceutical company conducts a 28-day oral toxicity study in rats to assess the safety profile of a new compound before submitting an Investigational New Drug (IND) application. This study must follow GLP guidelines to ensure regulatory acceptance.

GMP Example:

The same company begins producing the drug in a GMP-certified facility for Phase 2 clinical trials. Each batch produced is documented, tested, and released by quality control in accordance with GMP regulations.

Expert Tips

Phase of Drug DevelopmentKey Standard Used
Preclinical (animal studies)GLP
Clinical Trial ManufacturingGMP
ost-approval ManufacturingGMP

Conclusion

Understanding the distinction between Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP) is essential for ensuring the safety, efficacy, and quality of pharmaceutical products throughout their lifecycle. While GLP governs the standards for conducting reliable and reproducible non-clinical laboratory studies, GMP ensures that drugs are consistently manufactured and controlled according to quality standards during and after production

Related

FAQs

Is GLP required for clinical trials?

No, GLP applies to non-clinical studies. Clinical trials must follow GCP (Good Clinical Practice).

Can a GLP lab manufacture drugs?

Not typically. A GLP lab is not designed for manufacturing under GMP standards unless it also meets GMP requirements.

Are GLP and GMP interchangeable?

No. GLP ensures quality in laboratory studies; GMP ensures quality in manufacturing. Both serve different phases in the drug development lifecycle

Is GLP compliance mandatory?

Yes, for regulatory toxicology and safety studies submitted to FDA, EMA, etc

What happens if a company fails a GLP/GMP inspection?

It may result in regulatory warning letters, rejection of study data (GLP), or product recalls and license revocation (GMP)

Further Reading

About Dr Pramod Kumar Pandey
Dr. Pramod Kr. Pandey

Dr. Pramod Kr. Pandey is a distinguished Analytical Research Expert with over three decades of extensive experience in the pharmaceutical industry. He has contributed his expertise to both leading Indian and global pharmaceutical companies, consistently driving innovation and excellence in analytical research

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