Omeros Corporation and Quantum Leap Healthcare Collaborative announced that dosing of patients with narsoplimab in the I-SPY COVID-19 Trial began earlier this month. The I-SPY COVID-19 Trial is an adaptive platform trial sponsored by Quantum Leap Healthcare Collaborative. The goal of the trial is to screen rapidly, in parallel, multiple promising agents in order to identify drugs that will have a high impact on reducing mortality and avoid or reduce the duration of mechanical ventilation for critically ill COVID-19 patients. Narsoplimab is Omeros’ lead antibody targeting mannan-binding lectin-associated serine protease-2 (MASP-2), the effector enzyme of the lectin pathway of complement. It is the only complement inhibitor invited to participate in the I-SPY COVID-19 Trial. Narsoplimab has been administered under compassionate use to treat severely ill COVID-19 patients requiring mechanical ventilation, with impressive outcomes.