The National Cancer Institute, the federal research agency charged with leading the war against the nation's second-largest killer, is studying ivermectin as a potential cancer treatment, according to its top official.

"There are enough reports of it, enough interest in it, that we actually did -- ivermectin, in particular -- did engage in sort of a better preclinical study of its properties and its ability to kill cancer cells," said Anthony Letai, a physician the Trump administration appointed as NCI director in September.

Letai did not cite new evidence that might have prompted the institute to research the effectiveness of the antiparasitic drug against cancer. The drug, largely used to treat people or animals for infections caused by parasites, is a popular dewormer for horses.

"We'll probably have those results in a few months," Letai said. "So we are taking it seriously."

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