South Dakota will be the first state to conduct a hydroxychloroquine trial to test against Covid-19, Gov. Kristi Noem announced Monday.

She announced the trial in a series of tweets.

"We’ve received the initial doses we need," Noem said. "We’re now the first state to do a full clinical trial to test whether hydroxychloroquine can treat and perhaps prevent #COVID19."

About the drug hydroxychloroquine: The drug is used to treat malaria, lupus and rheumatoid arthritis. Trump has touted the drug, saying it shows "tremendous promise" of working against coronavirus as well.

But the National Institute of Allergy and Infectious Diseases isn't sponsoring any studies on hydroxychloroquine, according to a statement from the agency, which added that the agency is "considering" trials that examine the drug or its analogue chloroquine as a potential treatment for Covid-19 studies.

On its website, NIAID mentions several drug therapies it is supporting to fight coronavirus, but not hydroxychloroquine. The Biomedical Advanced Research and Development Authority, another federal agency, also lists its coronavirus measures on its website, but hydroxychloroquine is not among them.

Despite Trump's enthusiasm, a federal government registry for clinical trials shows only two trials in the US for hydroxychloroquine to fight coronavirus, and only one of those is up and running.