The number of Covid-19 cases and deaths is increasing daily across the US, and companies and researchers are working around-the-clock to discover a vaccine. Drug candidates are currently going the stages of clinical trial testing and investigators are making interim results available while trials are still taking place. The results from completed trials so far have offered mixed outcomes.

Immunosuppressive drug hydroxychloroquine was first approved for the treatment of malaria and is a current lupus treatment. However, it recently failed to meet endpoints, displaying adverse events in a retrospective study conducted at the United States Veterans Health Administration medical centres. Read more here.