A visual framework for classifying adaptive design clinical trials using the GATE frame and PICO terminology.

Area of Science:

• Clinical trial methodology
• Epidemiology
• Biostatistics

Background:

• Adaptive clinical trial designs permit pre-planned modifications using accumulating data, maintaining trial validity.
• Consolidated Standards Of Reporting Trials (CONSORT) 2025 guidelines ensure transparency in trial reporting.
• Adaptive designs can modify study populations, randomization, interventions, outcomes, or phases via interim analysis.

Purpose of the Study:

• To demonstrate how the Graphic Appraisal Tool for Epidemiological (GATE) framework can enhance the Adaptive designs CONSORT Extension (ACE) guidelines.
• To utilize the GATE framework as a teaching tool for explaining adaptive clinical trial designs.
• To illustrate adaptive trial concepts using COVID-19 prevention and treatment clinical trials.

Main Methods:

• The study discusses the integration of the GATE framework with the ACE statement for reporting adaptive trial modifications.
• PICO (Population, Intervention, Comparison, Outcome) terminology is used within the GATE framework.
• Examples from COVID-19 clinical trials are employed to conceptualize and represent adaptive designs.

Main Results:

• The GATE framework provides a visual and conceptual complement to the ACE guidelines for adaptive trial reporting.
• The combination of GATE and ACE facilitates clearer communication of adaptive trial elements.
• PICO terminology within GATE aids in structuring and understanding trial components.

Conclusions:

• The GATE framework, when combined with ACE guidelines, serves as an effective educational tool for understanding adaptive clinical trial designs.
• This approach enhances the clarity and accessibility of complex trial methodologies for diverse audiences.
• Application to COVID-19 trials demonstrates the practical utility of the GATE framework in real-world scenarios.