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The phase of the clinical trial in which the patient is enrolled.

The phase outlines the stage of clinical research that the trial is involved in, from phase I, the initial stage of testing in human subjects, to phase IV, surveillance of a drug or intervention after release for non-experimental clinical use.


Stedman TL 2006. Stedman's Medical Dictionary. 28th edition. Maryland: Lippincott Williams & Wilkins.
This content Based on Australian Institute of Health and Welfare material. Attribution provided as required under the AIHW CC-BY licence.

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