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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Morgans believes the current guidance was based on a flawed clinical trial. Ronnie Cohen, NPR, 21 May 2025 In Eli Lilly’s most recent Phase 3 clinical trial, patients who took the highest dose of orforglipron (36 milligrams) for 40 weeks:1 Lost an average of 16 pounds. Kaitlin Sullivan, Health, 20 May 2025 The approval comes after a clinical trial that saw 91.7% of positive tests using the Lumipulse G pTau217/ß-Amyloid 1-42 Plasma Ratio screening method revealing the presence of amyloid plaques, confirmed by PET or CSF test. Bronwyn Thompson, New Atlas, 20 May 2025 The transplant was part of a clinical trial that Gill and Nassiri plan to continue, with the hope of adding bladders to the list of transplantable organs. Theresa Braine, New York Daily News, 19 May 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 28 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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