Quest for drugs to fight Covid-19 Physicians across the globe are running trials on drug treatments repurposed from other diseases – from Ebola to malaria to arthritis – in a race to offer hope to Covid-19 patients 1. Antivirals: Stop virus from replicating in early stages Kaletra: HIV drug combination of lopinavir and ritonavir. U.S. biotech AbbVie has waived its patents Trials: More than 3,200 patients in international trials studying combinations Remdesivir: Gilead Sciences’ antiviral, developed for Ebola 600 patients in China and U.S. Favipiravir: From Japan’s Fujifilm Clinical studies of 340 people in China Chloroquine: Anti-malarial drug South Korea, China, U.S. and Norway 2. Anti- inflammatories: Treat immune system reactions Actemra: Roche’s rheumatoid arthritis treatment blocks cytokine storm – massive overreaction of immune system – during pneumonia stage Trials to start in U.S. and Italy Kevzara: Rheumatoid arthritis drug from Sanofi and Regeneron treats excessive cytokine release during ventilation 400 patients in 16 U.S. states 3. Antibody-based treatments: Derived from blood plasma of recovered Covid-19 patients Eli Lilly with Canadian start-up AbCellera and Japan’s Takeda are all developing drugs 300-plus patients in trials 4. Other treatments: BCG vaccine: Used to prevent tuberculosis by stimulating white blood cells to target pathogens before antibody response kicks in Trials of 4,000 medical workers in Australia, 1,000 medics in Netherlands Sources: Bloomberg, EU Clinical Trials Register, Live Science, MIT © GRAPHIC NEWS