Good Clinical Practice (GCP)
Full course · ICH E6(R3) Principles
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Learn how the protocol serves as the scientific and operational blueprint for clinical trials, requiring clarity, scientific soundness, and feasibility, supported by essential documents including the statistical analysis plan, data management plan, and monitoring plan.
A clinical trial is only as good as its protocol. This document, often running to dozens or even hundreds of pages, serves as the scientific and operational blueprint that guides every aspect of trial conduct. Without a sound protocol, even the most dedicated investigators and the most sophisticated monitoring systems cannot ensure that a trial protects participants or generates reliable data.
I have reviewed protocols that were masterpieces of scientific precision yet utterly impractical to implement. I have seen others that were operationally elegant but scientifically incoherent. And I have encountered too many that achieved neither virtue, cobbled together under time pressure with insufficient attention to the details that matter. Each failure mode produces its own characteristic problems: enrollment struggles, protocol deviations, unreliable data, and sometimes harm to participants who deserved better.
Principle 8 of ICH E6(R3) addresses protocol requirements directly. It establishes that the protocol must be clear, scientifically sound, and operationally feasible. These are not alternative criteria; all three must be satisfied. A protocol that is scientifically brilliant but impossible to follow is not a good protocol. Neither is one that sites can execute perfectly but that asks the wrong scientific questions.
What you will learn4 objectives
By the end of this lesson, you will be able to:
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