External Control Arms (ECA) rely on real-world data (RWD) to create control groups, which can significantly enhance the accuracy and relevance of clinical trial results. Cytel uses this approach to gather data from outside the clinical trial, such as from previous studies or patient registries. This method not only saves time but also ensures the comparator group more closely reflects real-world patient populations, improving the overall quality of the trial.

For more information visit - https://cytel.com/solutions/sp....ecialty-areas/extern