« Previous Page
A clinical trial is done to find out if a medicine or treatment is safe and works well for treating a certain condition or disease.
A medicine or treatment must go through three phases before it is approved for use by the U.S. Food and Drug Administration (FDA). A fourth phase happens after the medicine or treatment has been approved.
New combinations of approved medicines can be studied in phase II, phase III, or phase IV trials.
Current as ofDecember 19, 2018
Author: Healthwise StaffMedical Review: E. Gregory Thompson MD - Internal MedicineKathleen Romito MD - Family MedicineMichael Seth Rabin MD - Medical Oncology
Current as of:
December 19, 2018
E. Gregory Thompson MD - Internal Medicine & Kathleen Romito MD - Family Medicine & Michael Seth Rabin MD - Medical Oncology
To learn more about Healthwise, visit Healthwise.org.
© 1995-2019 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.