Trusted Resource for Clinical Trials, Protocols & Progress
Case Report Forms (CRFs) are standardized documents used to collect data from each participant in a clinical study as outlined by the study protocol. Whether paper-based or electronic (eCRFs), a well-designed CRF transforms complex clinical trial protocols into simple, user-friendly data capture tools while ensuring regulatory compliance and supporting statistical analyses.
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A CRF is a specialized document used to collect data from clinical trial participants in accordance with the study protocol. It serves as a vital tool for:
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A standardized CRF cannot meet the nuanced requirements of every clinical indication. Oncology trials involve detailed tumor assessments, biomarker data, and adverse event tracking, while cardiology studies often focus on ECGs, biomarkers like troponin, and cardiovascular event adjudication. Tailoring the CRF helps to:
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A well-balanced CRF ensures that data collection supports the protocol’s scientific objectives while remaining user-friendly for clinical site staff. Poor usability can lead to:
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A CRF is a tool used to collect patient data as specified in the clinical trial protocol. The format—paper or electronic—impacts:
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CRF design serves as the blueprint for data collection in a clinical trial. Errors in design lead to:
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CDASH stands for Clinical Data Acquisition Standards Harmonization. Developed by CDISC (Clinical Data Interchange Standards Consortium), CDASH defines standardized data collection fields, formats, and terminologies to be used in CRFs across clinical studies. It ensures that data captured at the source can seamlessly map to SDTM (Study Data Tabulation Model) datasets required for regulatory submission.
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Adaptive Trials allow pre-specified changes—such as sample size adjustments, dosing changes, or dropping treatment arms—based on interim analysis. Platform Trials use a single master protocol to test multiple therapies simultaneously or sequentially, often in a continuous manner.
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Clinical sites are responsible for entering data directly into the CRF, whether paper-based or through Electronic Data Capture (EDC) systems. If forms are unclear, overly complex, or misaligned with clinical workflows, the consequences include:
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Unstructured data refers to information entered in free-text format that does not follow a predefined structure. Examples include:
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