Definition of investigational
1 : of or relating to investigation investigational activities
2 : relating to or being a drug or medical procedure that is not approved for general use but is under investigation in clinical trials regarding its safety and efficacy an investigational new drug
Recent Examples of investigational from the Web
This year, ResQ Foam received an Investigational Device Exemption from the U.S. Food and Drug Administration.
The Clinic is a major research center for DLB and recently joined the first U.S. clinical trials designed to test two investigational drugs to treat the disease.
According to Bayer, the company that developed the investigational drugs, the Kansas City area has some of the highest rates of diabetes in the country, with more than 180,000 people over 18 diagnosed with the condition.
That vaccine, Stamaril, is considered investigational and is unlicensed in the United States.
The step after that would be to apply for an investigational device.
Later in 1962, Kelsey was named head of the FDA’s new investigational drug branch.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'investigational'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of investigational
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