What is GxP in pharma?

The "x" in GxP covers several specific disciplines. Which ones apply to you depends on your operations – manufacturing, distribution, research, clinical trials, or a combination.

• GMP (Good Manufacturing Practice): Covers the production, testing, and quality assurance of pharmaceutical products. GMP requirements apply to anyone involved in drug manufacturing and define how facilities, equipment, processes, and documentation must be managed to produce safe, consistent products. Also read: How to meet GMP temperature requirements

• GDP (Good Distribution Practice): Governs the proper distribution of medicinal products to maintain quality throughout the supply chain – from manufacturer to end user. GDP is relevant for logistics providers, wholesalers, and distributors handling pharma products. Also read: GDP requirements and guidelines

• GLP (Good Laboratory Practice): Applies to non-clinical laboratory studies and focuses on the planning, performance, monitoring, recording, and reporting of test data. GLP requirements exist to protect the quality and integrity of safety data generated before clinical trials begin.

• GCP (Good Clinical Practice): The international standard for designing, conducting, recording, and reporting clinical trials involving human subjects. GCP protects the rights and safety of trial participants and the integrity of clinical data.

• GVP (Good Pharmacovigilance Practice): Covers post-market safety monitoring of approved pharmaceutical products. GVP requirements apply to organizations responsible for detecting, assessing, and reporting adverse drug reactions.

• GSP (Good Storage Practice): Guidelines for maintaining proper storage conditions – including temperature, humidity, and light – to preserve drug quality, safety, and efficacy until the product reaches the end user.

• GDocP (Good Documentation Practice): Applies across all GxP disciplines. GDocP covers the creation, maintenance, and retention of records to support traceability and data integrity. If your documentation cannot demonstrate what happened, when, and by whom, it will not survive an audit.

Other GxP guidelines exist for more specialized areas – including GAMP (automated manufacturing), GRP (regulatory affairs), and GTP (translational practice) – but the standards above represent the core framework most pharma organizations need to address.

Not every system, process, or activity in a pharmaceutical organization falls under GxP. The distinction matters because it determines validation requirements, documentation standards, and audit exposure.

The deciding factor: does the system or process have a direct impact on product quality, patient safety, or data integrity? If yes, it is GxP-regulated. If not, it is typically classified as non-GxP.

The classification is not always black and white. An ERP system, for example, may include both GxP-relevant modules (production planning, inventory management for regulated products) and non-GxP modules (general finance, HR). In these cases, organizations often validate only the GxP-critical modules and document the boundary between regulated and non-regulated functionality.

Getting this classification right up front saves significant validation effort and avoids both over-engineering non-critical systems and under-documenting regulated ones.

There is no universal "GxP certification" issued by the FDA, EMA, or any other regulatory body. If a vendor claims their product is "GxP certified," ask what that actually means – because no recognized authority grants that label.

What does happen: regulatory authorities inspect and audit organizations against applicable GxP requirements. Passing an inspection means the organization demonstrated compliance at the time of the audit. It does not result in a "GxP certificate."

For technology systems and equipment, the more accurate terms are "GxP-ready" or "GxP-validated." A GxP-ready system is designed and built to support compliance – with features like audit trails, access controls, electronic signatures, and data integrity safeguards. But the system alone does not make you compliant. How you configure, validate, use, and maintain it determines whether your operations actually meet GxP requirements.

When evaluating vendors, look for documented evidence: validation documentation (IQ/OQ/PQ), compliance with relevant standards like 21 CFR Part 11 or EU Annex 11, and recognized certifications like ISO 17025 (for calibration) or ISO 27001 (for information security). These are verifiable. "GxP certified" is not.