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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Published this month by the International Society of Addiction Journal Editors, the clinical trial focused on 19 healthy adults with no past-month exposure to cannabinoids. Matt Hubbard, Baltimore Sun, 27 Apr. 2025 Biomarkers serve as surrogate endpoints in clinical trials, allowing researchers to test whether an intervention is working without waiting for death or disease to occur. Tomoko Yokoi, Forbes.com, 26 Apr. 2025 The previous randomized clinical trial used gamma knife, which is non-invasive. Frieda Klotz, Smithsonian Magazine, 25 Apr. 2025 These findings are the first of seven phase 3 clinical trials studying the safety and efficacy of orforglipron in people with obesity and diabetes. Claire Bugos, Verywell Health, 18 Apr. 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 2 May. 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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