clinical trial

noun

: a scientifically controlled study of the safety and effectiveness of a therapeutic agent (such as a drug or vaccine) using consenting human subjects

Examples of clinical trial in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Based on the study results, the scientists are now considering moving toward clinical trials in humans with the therapy method. Jenna Prestininzi, Freep.com, 30 Jan. 2026 The stop of production on Grey’s Anatomy coincidentally also comes a day after an episode that dealt in part with the revocation of federal funding for a clinical trial. Rick Porter, HollywoodReporter, 30 Jan. 2026 Personalized cancer screening strategies, lifestyle approaches to mitigate risks, robotic tools for cancer surgery and new advances in clinical trials are among the presentations on the agenda. Clayton Freeman, Florida Times-Union, 29 Jan. 2026 The Andro-Switch was commercially available in France for a few years, but in 2021 the government halted its sale, citing the need for clinical trials. Ana Castelain, Bloomberg, 28 Jan. 2026 See All Example Sentences for clinical trial

Word History

First Known Use

1946, in the meaning defined above

Time Traveler
The first known use of clinical trial was in 1946

Browse Nearby Words

Cite this Entry

“Clinical trial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clinical%20trial. Accessed 1 Feb. 2026.

Medical Definition

clinical trial

noun
: a scientifically controlled study of the safety and effectiveness of a therapeutic agent (as a drug or vaccine) using consenting human subjects

More from Merriam-Webster on clinical trial

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!