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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
The guidance on pulse oximeters was just one of a number of new guidelines – including on AI in drug development and the use of tissue biopsies in clinical trials – that the agency issued in the final weeks before the Trump Administration takes office.
—Alex Knapp, Forbes, 8 Jan. 2025
Most products were never tested in clinical trials, or officially approved by the W.H.O.
Until 2023, the Kenyan market was rife with counterfeit or diluted antivenom.
—Brian Otieno, New York Times, 6 Jan. 2025
Addressing root causes Drug failures in clinical trials are not solely due to how these studies are designed; selecting the wrong drug candidates to test in clinical trials is also a major factor.
—Christian MacEdonia, The Conversation, 3 Jan. 2025
While developing an mRNA vaccine would take just a matter of months, testing the shot in clinical trials would take longer.
—Alice Park, TIME, 2 Jan. 2025
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Word History
First Known Use
1946, in the meaning defined above
Dictionary Entries Near clinical trial
Cite this Entry
“Clinical trial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clinical%20trial. Accessed 15 Jan. 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
Britannica.com: Encyclopedia article about clinical trial
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