Tarec Christoffer El‐Galaly

Risk of Bias Associated with Varying Sampling Strategies for External Comparator Cohorts for Single‐Arm Trials: Insights from Aggressive Lymphoma

Marketing authorizations for oncology drugs are often based on single-arm trials (SATs), and real-world data-based external comparator cohorts (ECCs) are increasingly explored to contextualize results. In retrospective studies, comparators may be identified by time of diagnosis b...