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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The terminations include at least 160 clinical trials involving areas such as HIV/AIDS, mental health conditions, cancer, substance use, and chronic diseases. Michael T. Nietzel, Forbes.com, 14 June 2025 These include at least 160 clinical trials to study HIV/AIDS, cancer, mental health conditions, substance abuse and chronic disease. Asuka Koda, CNN Money, 11 June 2025 Atom Bodies has already attracted significant interest, with over 11,000 people on its wait list and plans to begin clinical trials within the next year, pending FDA approval. Kurt Knutsson, FOXNews.com, 11 June 2025 Before scientists could conduct clinical trials to know if ivermectin could also treat the new viral infection, COVID-19, the idea took off, mainly among conservatives. Beth Mole, ArsTechnica, 10 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 18 Jun. 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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