External Control
China: Key Considerations in Using Real-World Evidence to Support Drug Development – The control in clinical trials established based on data outside the scope of the study, such as real-world data, to evaluate the effects of the interventions under investigation. External controls can be historical data or data obtained during the same period of time in a parallel manner (as per Key Considerations in Using Real-World Evidence to Support Drug Development (Draft for Public Review) – Center for Drug Evaluation, NMPA – May, 2019)
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