Which of the following must a GLP protocol include to be compliant?

• A. Budget, staffing levels, and supplier contracts.
• B. Past study results from similar compounds.
• C. Study objectives, design, methods, endpoints, test article details, animal or test system, dose groups, and statistical plan.
• D. Only the study title and subject matter.

Answer: (C)

In GLP, the protocol is the formal plan that defines what will be done, how, and with what criteria, so the study can be conducted consistently and audited later. The essential elements cover the study objectives, design, methods, endpoints, details about the test article, the animal or test system, dose groups, and the statistical plan. This combination creates a clear roadmap: it states what’s being tested, how measurements are taken, how data will be analyzed, and how conclusions will be drawn. Without these specifics, the study lacks reproducibility and accountability.

Budgets, staffing, and supplier contracts are important for running the project, but they are operational and not the core content required to define a compliant GLP study protocol. Past results from similar compounds aren’t part of the protocol itself, since GLP emphasizes preplanned, prospectively defined methods rather than relying on prior outcomes. A study title and subject matter alone don’t specify the procedures, endpoints, or analysis—so they don’t meet the requirement for a compliant protocol.

Thus, the protocol must include the objectives, design, methods, endpoints, test article details, the animal or test system, dose groups, and the statistical plan.