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clinical trial

American

the scientific investigation of a new treatment that has shown some benefit in animal or laboratory studies, but that has not yet been proven effective in humans.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It represents a decade of work involving experiments in both humans and mice, along with analysis of clinical trial data.

From Science Daily • Apr. 12, 2026

It takes about two to four months to get a clinical trial going in China after seeking regulatory clearance, compared with six to nine months in the U.S.

From The Wall Street Journal • Apr. 11, 2026

Regulators previously cited inadequate control in RP1’s clinical trial.

From Barron's • Apr. 10, 2026

At the end of March the company announced “positive topline data” from a Phase 3 clinical trial on Elegrobart.

From Barron's • Apr. 6, 2026

Their fifty-three patients were, in effect, a clinical trial, and an astonishingly successful one.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023