Beijing, China and Madrid, Spain, 8 June, 2020 – Staidson, a biopharmaceutical company, headquartered in Beijing, developing investigational products by targeting the complement system and Pivotal, a European-wide full-service CRO, headquartered in Madrid, have today announced a new strategic collaboration to assess Staidson´s investigational product BDB-001, a monoclonal anti-C5a antibody, in a Europe-based clinical trial in progressive severe COVID-19 patients caused by SARS-CoV-2.