U.S. expands clinical trials to test convalescent plasma against COVID-19

WASHINGTON, Sept. 23 (Xinhua) -- Two randomized, placebo-controlled clinical trials funded by the U.S. National Institutes of Health (NIH) are expanding enrollment to further evaluate convalescent plasma as a treatment for patients hospitalized with COVID-19, according to the NIH.

Preliminary observational studies indicate that convalescent plasma may improve outcomes among severely ill and hospitalized patients with COVID-19.