The primary objective of this study is:~To evaluate the efficacy of fostamatinib when used in combination with standard of care (SOC) in subjects hospitalized with COVID- 19 and requiring oxygen supplementation, as measured by days on oxygen.
The study is a double-blind, randomized, placebo-controlled, multi-center, Phase 3 study to evaluate the efficacy and safety of fostamatinib in COVID-19 subjects.