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Dictionary of Cancer Terms

View in Spanish: Medicamento en fase experimental

Experimental drug (ek-SPER-ih-men-tul )
A substance that has been tested in a laboratory and has gotten approval from the U.S. Food and Drug Administration (FDA) to be tested in people. An experimental drug may be approved by the FDA for use in one disease or condition but be considered investigational in other diseases or conditions. Also called investigational agent and investigational drug.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.