Phase II Data from Kiniksa suggested that GMCSF/ GMCSFr pathway is important for covid related deaths. https://www.globenewswire.com/news-release/2021/04/12/2208144/0/en/Kiniksa-Announces-Positive-Results-for-Mavrilimumab-Phase-2-Trial-in-Non-Mechanically-Ventilated-Severe-COVID-19-Patients.html