The phrase 'efficacy in treating' is correct and usable in written English.
You can use it to refer to the effectiveness or success of certain treatments. For example, "The medical team conducted a study to determine the efficacy in treating the disease."
Their efficacy in treating Ebola has not yet been proven.
But in recent years, researchers have sought to rescue hallucinogens from exile by examining their efficacy in treating certain disorders of the mind, and perhaps even in understanding the nature of consciousness and spirituality.
"What's been shown is that people with alcohol and cocaine problems have less GABA in their brains, and we do know that medications that increase GABA have shown some efficacy in treating addiction".
The drug, which the company already sells to treat cancer under the name Campath, has shown remarkable efficacy in treating multiple sclerosis in a midstage clinical trial.
CGRP receptor (CGRP-R) antagonists, including telcagepant, have shown clinical efficacy in treating migraine.
Several clinical studies also prove ADSCs' efficacy in treating OA in human patients.
CD40 immunotherapy shows efficacy in treating pancreatic cancer in mice and humans by eliciting antitumor immunity.
However, there is no study that investigates its efficacy in treating natural stormwater runoff.
However, higher in vivo stability owns a much more important position for excellent antitumor efficacy in treating hematological malignancies.
Experimental results have been variable when analyzing nonactivated 4 F-PCC's efficacy in treating dabigatran-related bleeds.
Topical corticosteroids show efficacy in treating dry eye associated inflammation, and have a rapid onset of action [20].
