Real-World Evidence Is Changing the Way We Study Drug Safety and Effectiveness

January 29, 2019

(STAT News) – Randomized controlled clinical trials are a great way to test the safety and effectiveness of a new drug. But when the trial is over and the drug approved, it’s used by patients and health care practitioners in settings that are quite different from the rarified clinical trial setting. Interesting, important, and sometimes surprising findings can emerge when the narrow constraints of clinical trial eligibility and intent-to-treat analyses are set aside.

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