Everything Labs Need to Know about GxP Compliance

With modern labs managing more data than ever before, maintaining GxP compliance across documentation, data integrity, training records, and audit trails is a moving target.

That’s especially the case when your lab still relies on spreadsheets, paper logs, or a legacy system that fights you at every turn. 

This guide breaks down the specific best practices FDA inspectors look for in laboratory settings and shows you exactly how to operationalize each one. You'll walk away with a concrete framework you can implement this quarter, not a glossary of acronyms you already know.

What is GxP?

GxP standards draw on a wide range of global standards and are intended to ensure that products produced by labs are safe, meet their intended use, and follow quality processes throughout manufacturing.

“GxP” is a catch-all term; you can think of GxP as “Good <fill in an industry> Practice,” which lays out a series of standards and guidelines to follow. 

GxP itself isn’t a firm requirement; however, adherence to GxP demonstrates that lab results are auditable, processes are documented, data is managed correctly, and best practices are followed in the lab. GxP guidelines also fall under regulations and standards that may be required. 

Within GxP, there are several specific guidelines, such as:

• GMP: Good Manufacturing Practice, often referred to as cGMP (current Good Manufacturing Practices)
• GLP: Good Laboratory Practice
• GdocP: Good Documentation Practices
• GDP: Good Distribution Practice
• GCP: Good Clinical Practice
• GRP: Good Review Practice
• GSP: Good Storage Practice

While there is some variance across these, the core tenets of GxP cover the following best practices:

• Standardization and quality assurance: Ensure all activities, from research and development to manufacturing, are conducted under controlled conditions, reducing the risk of errors or contamination.
• Documentation and record-keeping: Record every aspect of laboratory processes, from handling materials to experimental details. This ensures traceability, allowing for the identification and rectification of any issues that arise during the development and testing phases.
• Staff training and competency: Continuously educate lab staff to stay up to date with the latest industry standards and practices. 
• Risk management: You must be able to identify, analyze, and mitigate risks associated with laboratory practices to catch potential issues early.
• Continuous improvement: GxP promotes a culture of continuous improvement. Feedback from audits, inspections, and day-to-day operations is used to refine and enhance laboratory practices. 

Next, we’ll share some common lab scenarios and what you can expect when meeting GxP standards.

What GxP Covers in a Lab Setting (GLP, GMP, GCP)

As a whole, GxP covers how labs manage data, oversee products, and maintain quality. But there is variance between industries on what GxP means, which is worth exploring in detail:

• GLP
• GMP
• GCP

GLP (Good Laboratory Practice)

GLP governs non-clinical safety studies; for example, the toxicology, pharmacology, and environmental testing data submitted to regulators to support product approvals. 

In the United States, GLP is codified in 21 CFR Part 58. Internationally, the OECD Principles of Good Laboratory Practice set the framework most countries follow. If your lab generates data that ends up in an IND, NDA, or pesticide registration submission, you're operating under GLP. Concrete obligations include study director designation, archived raw data with defined retention periods, and SOPs covering every method you run.

GMP (Good Manufacturing Practice)

GMP, specifically 21 CFR Parts 210 and 211 for drug products in the United States, governs the manufacture, processing, and holding of pharmaceutical products. 

Labs feel GMP most directly through QC testing: release testing of finished drug products, stability programs, raw material identification, and environmental monitoring of cleanrooms. A QC lab supporting GMP manufacturing isn't just "following GMP"; it's a regulated unit whose data becomes part of the batch record.

GCP (Good Clinical Practice)

GCP applies to clinical trial conduct, and labs touch it through bioanalytical work, central lab testing, and biomarker assays performed on study samples. 

The relevant frameworks include ICH E6(R3) and 21 CFR Parts 50, 54, 56, and 312, which cover informed consent, financial disclosure, IRBs, and IND requirements, respectively. Specimen chain-of-custody, blinding controls, and method validation under GCLP are where lab teams typically interact with this framework.

A common mistake is for labs to assume only one of these applies to them. In reality, there may be crossover between them for your lab, meaning your quality management systems need to flex across standards rather than simply meeting one.

How Labs Can Meet GxP Standards: The ALCOA+ Framework

Data integrity is the most frequently cited deficiency in FDA warning letters to laboratories. 

It's also the area where well-intentioned labs slip without realizing it: not through fraud, but through workflows that quietly violate ALCOA+ every day.

ALCOA+ is the framework regulators use to evaluate whether your data can be trusted. It originated with the FDA in the 1990s and was extended by MHRA and PIC/S into ALCOA+, which adds Complete, Consistent, Enduring, and Available.

• Attributable: Every data point must link to the person who generated it, with a verifiable timestamp. This applies to paper records written in pencil or batch logs, where two technicians' handwriting blurs together.
• Legible: Records have to be readable for the full retention period. That means no faded thermal printouts stuffed in a binder, no overwritten cells in a shared Excel file, no scrawled corrections that obscure the original entry.
• Contemporaneous: Data must be recorded at the time the activity occurs, not at the end of the shift or the next day. Inspectors check timestamps against instrument logs, badge entries, and witness signatures.
• Original: The original record is the first capture of the data. Transcribing a number into a spreadsheet and discarding the source isn't allowed.
• Accurate: Data must reflect what actually happened. Validated calculations, locked formula cells (or better, configured workflows), and second-person review can be helpful for verification.
• Complete: All data has to be retained. Selectively reporting only the passing injections from a sequence is a textbook integrity violation. If you run it, it stays in the record.
• Consistent: Data should follow chronological order, units and formats should be applied uniformly, and related entries across systems shouldn't contradict each other.
• Enduring: Records must survive for their required retention period in a format that remains accessible. Sticky notes, dry-erase boards, and unbacked-up local hard drives don't qualify.
• Available: During an inspection, you have to produce records on demand. "It's on a server somewhere," doesn't satisfy an investigator standing at your bench. Data needs to be retrievable in a reasonable timeframe by people with the right access.

You’re probably spotting a trend here: meeting the above framework with manual data transcription methods is incredibly painful at best.

That’s why modern labs are turning to software platforms like a LIMS to manage their data and compliance at scale.

How a Modern LIMS Automates GxP Compliance

Here's how a modern, configurable LIMS turns GxP from a manual burden into a built-in feature of your lab:

• Audit trail support
• Centralized SOP management
• Real-time insights 
• Native 21 CFR Part 11 support

Maintain Data Integrity With Audit Trails

Without a LIMS, it’s up to you to manage records for every single action: every result, every failed test, every approval, along with verification and timestamps.

A LIMS does this automatically. Every instrument reading and test result is logged with appropriate metadata, ensuring that you can retrieve records as needed and defend them to an inspector. With a LIMS, the ALCOA+ criteria above stop being a checklist that analysts have to remember and become a built-in function of your systems.

Centralize SOP Management

Where do your SOPs live now?

With a LIMS, SOPs are stored in a single controlled location with version locking, mandatory acknowledgment workflows, and direct linkage to the methods and training records that depend on them. For example, with QBench’s built-in QMS, you can store documents and use version control and document approvers to ensure only the most recently approved version is accessible to relevant staff. 

Real-Time Insights and Access to Data

A LIMS ensures you’re alerted to abnormalities or out-of-spec results instantly, and not hours – or days – after the fact.

A LIMS gives you real-time visibility into open deviations, overdue CAPAs, calibration status, training currency, and environmental monitoring excursions, which means an auditor's questions can be answered in minutes. 

Native 21 CFR Part 11 Support

Many LIMS (QBench included) also offer built-in support for the electronic signature requirements for 21 CFR Part 11. QBench offers electronic signatures with two-factor authentication, validated user access controls, secure timestamped audit trails, and documented system validation.

While you technically can manage all of the above with paper-based systems or a legacy LIMS, the ease of use and speed offered by a cloud-based LIMS mean your staff can spend more time on the work at hand and less time chasing down records. 

What to Look for When Selecting Software for Your Lab

Once you begin your search for the right LIMS, you’ll find substantial differences among platforms. We recommend you consider the following and ask these questions when evaluating vendors:

• Cloud vs. on-premise: Cloud-based LIMS offer faster implementation, lower upfront costs, automatic updates, and easier remote access, while on-premise systems may be preferred by labs with specific security requirements or limited internet connectivity.
• Configurability: Does the vendor require custom coding from a developer, or is it configurable so anyone on your team can log in and adjust settings to adapt the platform to your needs? Take care to evaluate a vendor’s stance on this, and ask for examples of what can be configured in the platform.
• Implementation timeline and approach: No LIMS comes “out of the box,” but some platforms are easier to implement than others. Take care to understand the vendor’s implementation approach and requirements before you begin. Fast is not always best; some vendors offer a quick implementation with months of work after your go-live date for extended services. 
• Expertise of the team: Anyone can build a software platform and market it to labs, but how many vendors have actually worked in a lab setting before? Look for a vendor who understands your needs because they’ve walked a mile or two in your shoes. For example, at QBench, we’re proud to employ many people who have worked in your shoes and understand what lab managers and staff go through each day.

There is a wide variety of software available to aid in managing GxP, so bear the above in mind when guiding your vendor evaluations.

Make Sure You Invest in the Right LIMS for Your Lab: Download the LIMS Buyer’s Guide

Once you’ve decided to invest in a LIMS, it’s time to make sure you invest in the right LIMS. 

There’s one small problem: which vendor(s) will you review? With so many vendors to pick from and features to consider, we created a LIMS buyer’s guide to help you make the right choice for your lab. In this guide, you will learn the following:

• The different types of LIMS available
• Key features to look out for
• A vendor comparison

And more!

Fill out the form below to get your free guide and take the first step toward automating your lab today.