The study is a randomized, double blinded, placebo-controlled, multicenter study with two parallel treatment arms consisting of either convalescent plasma or intravenous placebo. We plan to enroll a total of 1100 patients yielding a statistical power of 80 % to show a 30% relative reduction in risk of mechanical ventilation or death at day 28. Patients with confirmed COVID-19 infection and signs compatible with pneumonia will be enrolled in the study. The participants will be randomized 2:1 to the parallel treatment arms, and receive either single dose infusion treatment.~The primary outcome is a composite endpoint of all-cause mortality or need of invasive mechanical ventilation up to 28 days. Interim analysis will be performed frequently.~As new knowledge of treatment options for COVID-19 have emerged, the treatment arms including sarilumab, baricitininb, hydroxychloroquine and oral placebo have been terminated.
CCAP is an investigator-initiated multicentre, randomized, double blinded, placebo-controlled trial, which aims to assess the safety and efficacy of treatment with convalescent plasma for patients with moderate-severe COVID-19.~Participants will be randomized 2:1 to two parallel treatment arms: Convalescent plasma, and intravenous placebo.~Primary outcome is a composite endpoint of all-cause mortality or need of invasive mechanical ventilation up to 28 days.