Remdesivir has been called life-saving and it’s now become one of the options President Donald Trump’s physicians are using to help him heal. Dr. Thomas Patterson, with UT Health San Antonio, has been leading a local study site for clinical trials of Remdesivir at University Hospital since March. Patterson said hospitalized COVID-19 patients who have required oxygen benefit the most from the treatment. Questions have mounted surrounding the president’s treatment, but Patterson said health officials are working to find the right answer. White House Physician Sean Conley said there have been improvements in the president’s health since the beginning of his treatment.