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
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Planning for clinical trials, running the trials, writing up the results, and then waiting for permission to market the device can take five years. Jeffrey Kluger, Time, 6 Nov. 2025 Lynkuet is intended for patients who can't use HRT or prefer to avoid it, said Amy Voedisch, MD, a clinical associate professor of obstetrics and gynecology at Stanford Medicine who was not involved with the clinical trials for Lynkuet. Fran Kritz, Verywell Health, 5 Nov. 2025 She was recently hospitalized for nearly two months after a new clinical trial proved too harsh for her body, and her disease continued to progress. Jordan Greene, PEOPLE, 5 Nov. 2025 The researchers plan to test the patch in larger animal models before clinical trials. Aamir Khollam, Interesting Engineering, 4 Nov. 2025 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

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Cite this Entry

“Clinical trial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clinical%20trial. Accessed 10 Nov. 2025.

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
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