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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.

Ideaya Biosciences surged 13% after the biotechnology company released positive, statistically significant results from a clinical trial evaluating the efficacy of a combination therapy in patients with a rare form of eye cancer.

From Barron's • Apr. 13, 2026

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

From Barron's • Apr. 10, 2026

The findings come from a Phase III clinical trial led by a professor at UCL.

From Science Daily • Apr. 3, 2026

Shares in the U.K. pharmaceutical giant are rising, suggesting it scored a big win with a successful late-stage clinical trial for tozorakimab, Mould says.

From The Wall Street Journal • Mar. 27, 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