Quality assurance for GLP supplies

September 3, 2025

Understanding GLP and Its Importance in Laboratory Practices

Good Laboratory Practice (GLP) stands as a fundamental quality system framework aimed at ensuring the quality, integrity, and traceability of data produced in non-clinical research laboratories. GLP guidelines, established by regulatory authorities such as the FDA and EPA, provide a structured approach to validating study results that impact product approvals in sectors like pharmaceuticals, chemicals, and medical devices. At the core of GLP, quality assurance (QA) is pivotal to maintaining rigorous standards and compliance, especially in managing GLP supplies used in diverse laboratory settings.

Exploring the Foundations of GLP Standards

What is the GLP quality standard?

The Good Laboratory Practice (GLP) quality standard, set by the Environmental Protection Agency (EPA), ensures the integrity and validity of non-clinical studies. These studies support regulatory decisions regarding pesticide registrations and are governed under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and the Toxic Substances Control Act (TSCA).

The GLP compliance monitoring program includes thorough inspections of laboratories to verify adherence to established practices. The framework is built on ten fundamental pillars that cover organization, personnel qualifications, facilities design, and Standard Operating Procedures (SOPs). This structure ensures that all laboratory studies meet stringent quality and safety standards.

Impact of non-compliance on laboratory studies

Non-compliance with GLP standards can have severe repercussions. Laboratories face risks of study rejections, fines, and loss of credibility. Furthermore, the accuracy and reliability of study findings are compromised, potentially leading to unsafe products reaching the market.

The EPA’s GLP standards also align with international guidelines established by the Organization for Economic Cooperation and Development (OECD), promoting global consistency in laboratory practices.

Failure to adopt GLP could jeopardize regulatory approvals and undermine public trust in laboratory research.

The Role of Quality Assurance in Laboratory Practices

What are the responsibilities of quality assurance in laboratory practice?

Quality assurance (QA) in laboratory practice encompasses a comprehensive framework designed to ensure the accuracy, reliability, and consistency of test results. It involves several core functions that are crucial for maintaining high standards in GLP-compliant environments.

Core functions of QA in laboratories

  • Standard Operating Procedures (SOPs) : Establishment of SOPs is vital for all procedures to minimize variability and maintain compliance.
  • Regular Equipment Calibration : Ensures that the instruments used are functioning properly and yielding accurate results.
  • Staff Training : Personnel must receive adequate training on GLP principles and laboratory methodologies to minimize errors.
  • Internal Audits : Rigorous internal auditing processes help assess compliance with GLP standards and identify areas for improvement.

Key components of effective quality assurance

Effective QA fosters compliance with regulatory requirements, reducing legal and ethical risks in fields like healthcare and research. Key elements include:

  • Documentation Control : Maintaining detailed records that can be audited and verified.
  • Method Validation : Ensuring that testing methods are reliable and reproducible.
  • Continuous Monitoring : Implementing a Quality Management System (QMS) for ongoing improvements and risk mitigation.

Addressing risks through quality management systems

A robust QA framework effectively addresses potential risks throughout the lifecycle of laboratory processes, building trust among stakeholders and ensuring data integrity.

Ensuring Compliance through Quality Assurance for GLP

What is quality assurance for GLP?

Quality assurance (QA) in the context of Good Laboratory Practice (GLP) is an essential component that ensures compliance with established standards within test facilities. It involves continuous monitoring of laboratory processes to guarantee that studies are conducted in accordance with the OECD GLP principles, which are crucial for ensuring the quality and validity of test data related to chemical safety.

QA programmes incorporate a risk-based approach, enhancing their effectiveness and aligning with updated regulatory expectations. This updated guidance reflects current practices and integrates aspects from previous QA documents, specifically incorporating the full text of the 1997 revised OECD Principles. By adhering to GLP, test facilities position their studies for reliable submission to national authorities, essential for evaluating human health and environmental safety.

What functions does QA perform specifically in GLP settings?

QA functions are diverse and encompass several key responsibilities within GLP settings:

  • Audit Processes : Conduct regular audits of facilities, study protocols, and data management to ensure compliance.
  • Monitoring : Ensure that all laboratory activities adhere to established SOPs and GLP standards.
  • Personnel Training : Provide ongoing education to staff about GLP principles to maintain high standards.
  • Documentation : Verify that all study documentation meets compliance requirements and is maintained adequately.

Through a robust QA framework, test facilities not only adhere to compliance but also enhance the integrity of data critical for regulatory decisions. Ultimately, effective QA activities are fundamental in safeguarding the validity of scientific research and ensuring consumer safety across various sectors.

The Role of QA in Pharmaceutical Research within GLP

Intersect of GLP and Pharmaceutical Quality Assurance

Quality Assurance (QA) plays a pivotal role in ensuring that Good Laboratory Practices (GLP) are fully integrated into pharmaceutical research. The framework of GLP establishes guidelines that govern various elements of laboratory work, from personnel training to thorough documentation and reporting. Pharmaceutical quality assurance specifically focuses on validating that non-clinical studies adhere to these stringent guidelines, boosting the quality and integrity of data generated.

A dedicated Quality Assurance Unit (QAU) operates independently within GLP facilities. This unit conducts regular inspections and audits throughout the study process to verify compliance with essential protocols and standard operating procedures (SOPs). By ensuring that every aspect of laboratory practices aligns with GLP requirements, the QAU fosters a culture of accountability that is crucial for maintaining high-quality research standards.

Ensuring Data Integrity in Pharmaceutical Studies

At the heart of pharmaceutical QA within GLP environments is the commitment to data integrity. This is achieved through meticulous documentation practices, rigorous training of personnel, and the implementation of SOPs that govern all study phases.

The QA unit is responsible for overseeing the validity of the data produced, thus safeguarding against discrepancies that could impact the safety and efficacy assessments of pharmaceuticals. QA ensures that documentation related to study protocols and results is both comprehensive and accessible, allowing for reliable traceability of data—a necessity for regulatory submissions.

In summary, the confluence of pharmaceutical quality assurance and GLP not only enhances the credibility of research findings but also serves the greater purpose of safeguarding public health by ensuring that pharmaceuticals are thoroughly vetted and compliant with established safety standards.

Best Practices for Maintaining GLP Standards in Laboratories

Implementation of SOPs and protocols

Implementing Standard Operating Procedures (SOPs) is a cornerstone of maintaining Good Laboratory Practice (GLP) standards in laboratories. SOPs provide clear instructions for laboratory operations, ensuring consistency and reliability in data collection and reporting. Each SOP should detail the procedures for equipment usage, sample handling, data recording, and safety measures, which helps to minimize errors and variability in results.

Moreover, the establishment of protocols that are in line with GLP requirements is crucial. These protocols must undergo regular reviews and updates to adapt to any regulatory changes or new scientific insights, reinforcing the laboratory's commitment to quality and compliance.

Role of SOPs in ensuring GLP compliance and data integrity

SOPs play a vital role in ensuring GLP compliance by detailing the necessary steps for maintaining data integrity throughout the study lifecycle. This includes the maintenance of equipment, training of personnel, and documentation practices, all of which are essential for generating valid results.

They also prevent deviations from GLP regulations by providing a baseline against which laboratory practices can be measured. When followed rigorously, SOPs enhance the credibility of data submitted for regulatory approval, ensuring reliable assessments of product safety and efficacy.

By fostering a culture of compliance through well-defined procedures, laboratories are better positioned to uphold the integrity of their research and meet the rigorous standards set by regulatory bodies such as the FDA and EPA.

The Importance of Measurement Assurance in GLP Compliance

Measurement assurance systems and statistical control in laboratories

Measurement assurance is essential in ensuring that laboratory results are both valid and reliable. This involves using several strategies, including the establishment of reference materials, quality control procedures, and equipment calibration. These methodologies ensure that data generated during studies is traceable and adheres to recognized standards.

Statistical control of measurement processes is crucial. It guarantees that the variability in results remains stable and close to reference values, which is critical for establishing confidence in data integrity during non-clinical studies.

Partnerships in quality assurance practices

Effective quality assurance in GLP-compliant laboratories often involves collaborative efforts. Organizations like the National Institute of Standards and Technology (NIST) provide invaluable guidance to laboratories. These partnerships focus on continuous monitoring, ensuring that measurement assurance systems are both robust and adaptable, thereby supporting the overarching goals of GLP compliance. Cooperation within industry standards helps promote consistency and improves the reliability of laboratory outcomes.

Conclusion: The Future of GLP and Quality Assurance

As laboratories globally adapt to evolving scientific and technological demands, the foundational principles of Good Laboratory Practice (GLP) and associated quality assurance measures remain ever crucial. By adhering to stringent GLP standards and engaging comprehensive quality assurance programmes, laboratories can ensure the credibility, reproducibility, and integrity of their non-clinical study data. With continued advancements in quality assurance frameworks, laboratories will be well-positioned to maintain compliance, address emerging challenges, and contribute to safeguarding public health through reliable data insights.

References

July 29, 2026
Compounded medications are a routine part of modern care, but unlike mass-manufactured drugs, each one is prepared individually, which means the standards behind its preparation carry real weight. For providers who order or refer for compounded therapies, a working understanding of those standards is the clearest way to judge whether a pharmacy is safe to trust. This overview covers the standards that govern sterile compounding and what they mean for the medications your patients receive. Why Standards Matter More in Compounding A commercially manufactured drug is produced under FDA oversight in large, validated batches. A compounded medication is prepared for an individual patient, often in small quantities, sometimes because no commercial equivalent exists. That flexibility is exactly why it's clinically valuable — and why the standards around preparation exist. Without rigorous controls, the same customization that helps patients could introduce contamination or error. Our guide to our sterile compounding pharmacy describes how those controls come together in practice. The Regulatory Landscape Sterile compounding sits within a layered framework: The United States Pharmacopeia (USP) publishes the general chapters, most importantly <797> and <800>, that define how compounded preparations should be made and handled. State boards of pharmacy license and inspect pharmacies, including where they're permitted to ship. Multi-state operations must maintain licensure in each state they serve. Accreditation bodies (ACHC, NABP, PCAB) provide independent verification that a pharmacy meets recognized standards. Together, these create the accountability structure behind every compounded dose. USP <797>: Sterile Preparations USP <797> is the cornerstone standard for compounded sterile preparations. It governs the conditions and practices required to keep a preparation free of contamination, including personnel training and garbing, ISO-classified air quality and engineering controls, environmental monitoring, and beyond-use dating. For any medication infused directly into the body, <797> compliance is the baseline expectation, not a premium feature. USP <800>: Hazardous Drugs USP <800> adds a containment layer for hazardous drugs, protecting personnel, patients, and the environment from unintended exposure. It specifies containment engineering controls, PPE, and validated handling procedures for drugs identified as hazardous. When a preparation is both sterile and hazardous, it must satisfy <797> and <800> together. For the details, see our breakdown of USP <800> requirements . Accreditation: Independent Verification Standards are only meaningful if someone checks that they're being met. Accreditation from ACHC, NABP, and PCAB means a pharmacy has been inspected against national benchmarks by an outside authority. For a provider, accreditation is a shortcut to confidence: it signals that the pharmacy's claims about its processes have been independently validated. The Quality-Control Process Behind the standards is a repeatable process that governs each preparation: Pharmacist review of the prescription for appropriateness, compatibility, and dosing Preparation by trained technicians under aseptic conditions In-process and final verification by a licensed pharmacist Sterility testing or filtration validation where required This chain is what turns a standard on paper into a safe medication in a patient's hands. What This Means When You Order When you refer a patient for a compounded therapy, you're effectively extending your own standard of care into another facility. Knowing that a pharmacy is USP-compliant, accredited, and pharmacist-led lets you refer with confidence that the medication will meet the same expectations you'd hold for anything you administer yourself. If you're weighing options, our guide on how to choose a compounding partner walks through the criteria. The Pharmko Standard Pharmko compounds every TPN, IDPN, and IPN preparation in a USP <797>-compliant, ISO Class 5 cleanroom, under ACHC, NABP, and PCAB accreditation, with a licensed pharmacist reviewing and releasing each formula. For the patients who receive our preparations, many of them managing End Stage Renal Disease (ESRD), that standard is the point. Refer a Patient → · [1 (877) 540-2003]
Physician evaluating a sterile compounding pharmacy partner
July 29, 2026
How to evaluate a sterile compounding pharmacy: accreditation, USP compliance, clinical support, turnaround, and the questions every practice should ask.
Sterile compounding pharmacy technician in PPE under a containment hood
July 29, 2026
A clear guide to USP 800 requirements: hazardous drug handling, containment, PPE, and the facility standards every sterile compounding pharmacy must meet.
Myasthenia Gravis and IVIG: What Patients Need to Know About IV Therapy
July 20, 2026
Learn how IVIG therapy works for myasthenia gravis, when it's used, what to expect during infusions, how home IVIG is coordinated, and how Pharmko supports MG patients and their neurologists.
Dobutamine and Inotrope Therapy at Home
July 17, 2026
Learn how home dobutamine infusion works for advanced heart failure, who qualifies, how continuous inotrope therapy is managed at home, and how Pharmko supports cardiac patients and heart failure teams.
CIDP and Home Infusion: IVIG Treatment, Dosing Schedule, and Long-Term Management
July 16, 2026
Learn how IVIG therapy works for CIDP, what the dosing schedule looks like, how to transition to home infusion, and how Pharmko supports long-term CIDP management across 22+ states.
Compounded IV Medications
July 15, 2026
Most medications that patients receive at a hospital or pharmacy come in standardized, commercially manufactured forms, a 500mg antibiotic vial, a pre-filled syringe, a fixed-concentration IV bag. These products work well for many patients. But a significant portion of patients receiving IV therapy have clinical needs that commercial products cannot meet: a dose the manufacturer doesn't make, a formulation incompatible with the patient's allergy profile, or a combination of nutrients that must be tailored to individual lab values. For these patients, compounded IV medications are not optional, they are clinically necessary. Pharmko's sterile compounding services prepare customized IV medications for patients across 22+ states, with every formulation reviewed by a licensed pharmacist and prepared in a USP <797> compliant cleanroom. What Makes an IV Medication 'Compounded'? A compounded medication is one that is prepared specifically for an individual patient by a licensed pharmacist, rather than manufactured in bulk by a pharmaceutical company. Compounding involves combining, mixing, or altering ingredients, active pharmaceutical ingredients, diluents, preservatives, to create a final preparation that meets the patient's unique prescription requirements. For IV therapy specifically, compounding means preparing a sterile preparation, one that is completely free of viable microorganisms and safe to inject or infuse directly into the bloodstream. This requires specialized facilities, equipment, training, and quality systems that go far beyond what a standard retail pharmacy can provide. Pharmko is exclusively a sterile compounding pharmacy. We do not compound oral medications, topical creams, or non-sterile preparations. Every product we make is intended for intravenous, intraperitoneal, or subcutaneous administration. When Are Compounded IV Medications Necessary? The required dose doesn't exist commercially Pharmaceutical manufacturers produce medications in standardized strengths and volumes based on average patient needs. Pediatric patients, patients with renal or hepatic impairment requiring dose adjustments, or patients whose weight or clinical status falls outside standard ranges may need concentrations or volumes that no commercial product provides. Compounding fills this gap precisely. The patient has an allergy to a commercial formulation's inactive ingredients Commercial IV products often contain preservatives, stabilizers, or diluents, sulfites, benzyl alcohol, certain dyes, that some patients cannot tolerate. A compounding pharmacy can prepare an equivalent formulation without the offending ingredient, allowing the patient to receive the therapy safely. The medication requires individualized nutrient formulation Total parenteral nutrition (TPN) is the clearest example: every TPN formula must be individually compounded because no commercial product can provide the precise combination of amino acids, dextrose, lipids, electrolytes, vitamins, and trace minerals a specific patient needs. The formula changes as the patient's labs, weight, and clinical status change, making standardization impossible. The commercial product is unavailable or in shortage Drug shortages are a persistent reality in the US pharmaceutical supply chain. When a commercially manufactured IV medication becomes unavailable, compounding pharmacies can often prepare an equivalent formulation from available active pharmaceutical ingredients, bridging the gap and maintaining continuity of therapy for patients who cannot wait. The therapy requires a custom delivery format Some IV medications require specific pH, osmolarity, or concentration adjustments for compatibility with a patient's IV access device or concurrent medications. A compounding pharmacist reviews compatibility and prepares formulations that are safe and stable for the specific administration route and equipment the patient is using. How Compounded IV Medications Are Made Step 1: Prescription review Every compounded IV medication begins with a valid prescription from a licensed prescriber. Pharmko's pharmacists review the prescription for clinical appropriateness, dosing accuracy, ingredient compatibility, and stability before compounding begins. Step 2: Ingredient sourcing and verification Active pharmaceutical ingredients for compounding must come from FDA-registered suppliers and meet USP monograph specifications. Each lot is verified for identity, potency, and purity before use. Step 3: Sterile preparation in a controlled environment Preparation occurs in an ISO Class 5 laminar airflow workbench or biological safety cabinet, located within a buffer room that meets ISO Class 7 air quality standards. Pharmacy technicians follow validated, written procedures for each preparation type, using aseptic technique to prevent contamination at every step. Step 4: Pharmacist verification and release A licensed pharmacist performs a final check of every preparation, verifying appearance, volume, labeling, and documentation, before the product is released. High-risk or complex preparations may undergo sterility testing with defined beyond-use dates based on test results. Step 5: Cold-chain delivery Most compounded IV medications require refrigeration. Pharmko uses validated cold-chain packaging and delivery logistics to ensure products arrive within their stability windows and remain temperature-controlled until the patient uses them. Quality Standards That Matter Not all compounding pharmacies operate at the same standard. The relevant quality benchmarks for sterile compounding are: USP <797> compliance, the national standard for sterile compounding environments, personnel, and processes. Our guide on USP <797> and USP <800> explains what compliance means in practice ACHC accreditation, independent third-party verification that Pharmko meets clinical quality standards for home infusion and sterile compounding State pharmacy board licensure, Pharmko is licensed in every state where we serve patients Environmental and personnel monitoring, documented air and surface sampling, personnel gowning competency assessments, and media fill testing at defined intervals For a foundational overview of what sterile compounding is and how it differs from retail pharmacy, see our guide on what is sterile compounding for IV therapy . → Contact Pharmko about compounded IV medications: 1-877-540-2003
home infusion therapy Pennsylvania
July 14, 2026
Pharmko provides home infusion therapy across Pennsylvania, IV antibiotics, IVIG, TPN, biologics, and specialty medications. Licensed, ACHC accredited, and available 24/7 statewide.
Home Infusion Therapy in New Jersey
July 14, 2026
Pharmko provides home infusion therapy across New Jersey, IV antibiotics, IVIG, TPN, IDPN, biologics, and more. Licensed, ACHC accredited, and available 24/7 statewide.
Renal dietitian reviewing albumin labs for a peritoneal dialysis patient
July 10, 2026
When to consider IPN for peritoneal dialysis patients with low albumin: clinical criteria, the stepwise nutrition approach, and the referral process.
Show More