Study		Exclusion reasons	Remarks	Reference(s)
BREATH-19 Study, 0	single-arm
Gritti et al., 2020	single-arm	inadequate or absent control group		Gritti et al. medRxiv 10.1101/2020.04.01.20048561
Huijie Bian, 2020	non randomized controlled trial	not relevant study design	study with major methological limitations precluding any conclusion	Huijie Bian medRxiv 10.1101/2020.03.21.20040691
Yin Wang et al., 2020	retrospective cohort (registry)	not relevant study design		Yin Wang et al. medRxiv 10.1101/2020.03.06.20032342
Roschewski, 2020	observational study	no control group		Roschewski M Sci Immunol 2020 Jun 5;5(48):eabd0110. 10.1126/sciimmunol.abd0110
Bargay-Lleonart, 2022	randomized controlled trial	no clinically relevant endpoint	The trial was terminated early due to the impossibility of recruitment due to the pandemic.	Bargay-Lleonart J J Clin Med 2022 May 27;11(11):3039. 10.3390/jcm11113039
Dai W, 2020	retrospective cohort	other	inadequate statistical analysis	Wei Dai, Jian Wu, Tianfu Li, Jiawei Shen, Rongrong Pang, Bangshun He, Tao Luo, Yanju Guo, Yang Yang, Jun Zhao, Mingchao Zhang, Na Li, Ying Han, Qiuyue Wu, Weiwei Li, Xinyi Xia BMC Cardiovascular Diabetology
Bernaola, 2020	retrospective cohort	other		Nikolas Bernaola medrxiv;2020.07.17.20155960v1 10.1101/2020.07.17.20155960
Holt, 2020	retrospective cohort	other	no CI reported	Holt, Gregory E 10.21203/rs.3.rs-39875/v1
Klopfenstein, 2020	retrospective cohort	other	major flaws in the method	Klopfenstein T International Journal of Infectious Diseases 10.1016/j.ijid.2020.08.024
Cantini, 2020	non randomized controlled trial	other	same patients than in Cantini et al. (octobre publication)	Cantini F J Infect 2020 Aug;81(2):318-356. 10.1016/j.jinf.2020.04.017