All About Phase IV Clinical Trials - Metastatic Breast Cancer Trial Talk

Inside Clinical Trials

In the last 3 months, we highlighted what to know about phase I, phase II, and phase III clinical trials. In the last of our four-part series, we are discussing phase IV clinical trials.

Phase IV trials, which typically enroll thousands of people, are conducted after a treatment has been approved by the Food and Drug Administration and is available for doctors to prescribe to patients not enrolled in a clinical trial. These trials study how well a treatment works in addition to side effects and safety over a long period of time. Another purpose of phase IV trials is to obtain real-world evidence. Real-world evidence is information obtained from clinical trials as well as other sources such as electronic health records and patient registries.

Phase IV Clinical Trials


Last Modified on April 29, 2022



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