investigational

adjective

in·ves·ti·ga·tion·al in-ˌve-stə-ˈgā-sh(ə-)nəl

: of or relating to investigation

investigational activities

: 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

Examples of investigational in a Sentence

Recent Examples on the Web The Sabin Vaccine Institute is providing an investigational vaccine to Rwanda for testing among healthcare workers at risk. —

Mark Kortepeter, Forbes, 7 Oct. 2024 The Food and Drug Administration cleared the investigational new drug application for a phase 1/2 clinical trial of an experimental drug candidate known as REC-1245. —

Christina Cheddar Berk, CNBC, 2 Oct. 2024 Clinical trials allow researchers to understand whether investigational medicines may work for people with different health conditions. —

Essence, 2 Oct. 2024 Neurocrine Biosciences reported that its investigational drug luvadaxistat, a schizophrenia treatment, failed to reach primary endpoints in a phase two study. —

Hakyung Kim, CNBC, 12 Sep. 2024 See all Example Sentences for investigational

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'investigational.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1905, in the meaning defined at sense 1

Time Traveler

The first known use of investigational was in 1905

See more words from the same year

Cite this Entry

Style

“Investigational.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/investigational. Accessed 25 Oct. 2024.

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