U.K. begins large trial of new COVID-19 treatment inhaled into the lungs

Britain on Tuesday began a large-scale trial of a new COVID-19 treatment in which patients inhale aerosolized interferon beta proteins into the lungs with a nebulizer. The treatment, developed at Southampton University Hospital and produced by biotech firm Synairgen, cut the odds of COVID-19 patients developing severe symptoms by nearly 80 percent, according to a small, phase 2 trial of 100 patients. The new phase 3 study involves more than 600 subjects in 20 countries, half of whom will get the...