Phases of a Clinical Trial
Current as of: April 29, 2020
Author: Healthwise Staff
Medical Review: E. Gregory Thompson MD - Internal Medicine & Kathleen Romito MD - Family Medicine & Michael Seth Rabin MD - Medical Oncology
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 of: April 29, 2020
Author: Healthwise Staff
Medical Review:
E. Gregory Thompson MD - Internal Medicine
Kathleen Romito MD - Family Medicine
Michael Seth Rabin MD - Medical Oncology
Next Section:
CreditsPrevious Section:
Topic OverviewCurrent as of: April 29, 2020
Author: Healthwise Staff
Medical Review: E. Gregory Thompson MD - Internal Medicine & Kathleen Romito MD - Family Medicine & Michael Seth Rabin MD - Medical Oncology
This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use . Learn how we develop our content .
To learn more about Healthwise, visit Healthwise.org .
© 1995-2020 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Follow Us
Disclaimer
Individual and family medical and dental insurance plans are insured by Cigna Health and Life Insurance Company (CHLIC), Cigna HealthCare of Arizona, Inc., Cigna HealthCare of Illinois, Inc., and Cigna HealthCare of North Carolina, Inc. Group health insurance and health benefit plans are insured or administered by CHLIC, Connecticut General Life Insurance Company (CGLIC), or their affiliates (see a listing of the legal entities that insure or administer group HMO, dental HMO, and other products or services in your state). Group Universal Life (GUL) insurance plans are insured by CGLIC. Life (other than GUL), accident, critical illness, hospital indemnity, and disability plans are insured or administered by Life Insurance Company of North America, except in NY, where insured plans are offered by Cigna Life Insurance Company of New York (New York, NY). All insurance policies and group benefit plans contain exclusions and limitations. For availability, costs and complete details of coverage, contact a licensed agent or Cigna sales representative. This website is not intended for residents of New Mexico.
Selecting these links will take you away from Cigna.com to another website, which may be a non-Cigna website. Cigna may not control the content or links of non-Cigna websites. Details