efficacy

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.

Sanofi said it would stop a late-stage study of an experimental treatment for a rare immune disorder after concluding the drug was unlikely to deliver sufficient efficacy.

From The Wall Street Journal • Jun. 10, 2026

The company reported positive results for two studies of its elecoglipron experimental drug, which showed competitive efficacy with a standard safety profile, the analysts say.

From The Wall Street Journal • Jun. 9, 2026

The analysts at Citi also highlighted what they said were real-world signals of waning efficacy in Wegovy pill as roughly a quarter to a third of patients are no longer losing weight.

From MarketWatch • Jun. 8, 2026

They add: "Assessing long-term efficacy is critical since those who work night shifts for many years would need to consistently consume melatonin supplements over that time frame to maximize the potential cancer prevention benefits."

From Science Daily • May 30, 2026

Modern trials of the efficacy of therapies depend on the idea that an effective therapy must perform better than a placebo.

From "The Invention of Science" by David Wootton