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What is a GLP test system?

A GLP test system is the biological, chemical, or physical model used to generate reliable and reproducible data in a Good Laboratory Practice (GLP) study. It represents the subject or material on which the test item acts — for example, laboratory animals, cell cultures, microorganisms, or even in vitro assay systems. According to GLP regulations, the test system must be suitable, validated, and fully documented, ensuring that the results reflect the true effects of the tested substance or product.

Proper management of the GLP test system is a key responsibility of study directors and Quality Assurance units. This includes selecting appropriate models, maintaining consistent environmental conditions, calibrating equipment, and recording every parameter that might influence study outcomes. In biotechnology and pharmaceutical research, GLP test systems are essential for toxicology, pharmacology, and safety studies that support regulatory submissions. Their integrity directly affects the credibility of all experimental data. In short, a GLP test system ensures that laboratory results are scientifically valid, traceable, and compliant with international regulatory standards.