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

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This isn’t theory as clinical trials keep proving it. Tor Constantino, Forbes.com, 7 July 2025 However, human clinical trials are essential before camel milk can be recommended as a treatment or preventive measure for asthma. New Atlas, 6 July 2025 Since there are so few human cases, rigorous clinical trials with enough patients are nearly impossible to organize. Andrew Montequin, jsonline.com, 3 July 2025 Another obstacle is the cost to conduct the sort of clinical trials required by the FDA. Jon Hamilton, NPR, 30 June 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 22 Jul. 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

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