The National Institutes of Health says drug trials are showing remdesivir may offer significant benefits for coronavirus patients who don't require ventilation.
The NIH says the drug cut the recovery time of patients by four days when compared to patients receiving a placebo, according to a study published in the New England Journal of Medicine.
The study found the drug helped people who were hospitalized with breathing difficulties and needed "supplemental oxygen therapy" but not ventilation. However, the study added that 7% of people taking remdesivir in the trial died.
That's an improvement compared to 12% of trial participants who died while on the placebo. But the NIH said it shows remdesivir "alone is not likely to be sufficient," calling for further research to test complimentary treatment options.
Researchers said the study also showed starting treatment as soon as possible is the best way to fight the virus.