What is the importance of compliance with the clinical trial protocol?

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Adherence to the protocol ensures both trial integrity and participant safety. The protocol lays out exactly how the study should be conducted—who can be enrolled, what procedures and assessments are performed, how data are collected and analyzed, and how safety monitoring and adverse events are handled. When procedures are followed consistently, results are reliable and unbiased, and participants are protected by standardized safety and consent processes. Noncompliance can introduce bias, compromise data quality, and undermine regulatory oversight, potentially putting participants at risk and jeopardizing the study’s credibility. This isn’t a matter of sponsor preference, nor is it only about data collection; it governs the entire conduct of the trial and its ethical and regulatory legitimacy. It also doesn’t guarantee faster recruitment, since the focus is proper conduct and safety, not speed.