Investigational drug

(in-VES-tih-GAY-shuh-nul drug) A substance that has been tested in the laboratory and has been approved by the U.S. Food and Drug Administration (FDA) for testing in people.

Timeline for drug evaluation

Clinical trials

Clinical trials test how well investigational drugs work and whether they are safe to use.

Approval by FDA

An investigational drug may be approved by the FDA for use in one disease or condition but still be considered investigational in other diseases or conditions.

Other names

Also called experimental drug, IND, investigational agent, and investigational new drug.

Investigational drug Resources
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