Potential of FX06 to prevent disease progression in hospitalized non-intubated COVID-19 patients — the randomized, EU-wide, placebo-controlled, phase II study design of IXION oleh Jan Kloka, Benjamin Friedrichson, Stephanie Dauth, Ann Christina Foldenauer, Anita Bulczak-Schadendorf, Maria J. G. T. Vehreschild, Francisco Maio Matos, Antoni Riera-Mestre, Antoinette D. I. van Asselt, Edoardo De Robertis, Vilma Traskaite Juskeviciene, Patrick Meybohm, Dana Tomescu, Karine Lacombe, Coen D. A. Stehouwer, Kai Zacharowski, on behalf of the IXION Collaboration Group