Table 1 Summary of the main findings from the clinical trials of COVID-19 in mainland China. Treatment Target population Reduces viral loads Improvement in clinical outcomes Main adverse effects Lopinavir–ritonavir Severe COVID-19 Probable No significant acceleration in the time to clinical improvement Gastrointestinal tract symptoms; impairment of liver and kidney function 

 Remdesivir Severe COVID-19 Probable No significant acceleration in the time to clinical improvement Gastrointestinal tract symptoms; impairment of liver and kidney function 

 Favipiravir Severe COVID-19 Yes Increase the rate of improvement of chest computed tomographic findings Diarrhea; impairment of liver and kidney function 

 Chloroquine Moderate-to-severe COVID-19 Yes No significant acceleration in the time to clinical improvement Prolongation of Qt intervals; impairment of liver and kidney function 

 Convalescent plasma Critical illness of COVID-19 Yes No significant acceleration in the time to clinical improvement Unknown 

 Lianhuaqingwen capsule Moderate COVID-19 No Accelerate symptom improvement and increase the rate of symptom improvement impairment of liver and kidney function 

 Granulocyte colony stimulating factor Lymphopenic patients with COVID-19 No Decrease the likelihood of disease progression and increase the rate of symptom improvement Leukocytosis; osteodynia 

 Hydrogen oxygen mixed gas inhalation Symptomatic patients with COVID-19 Unknown Rapidly ameliorate respiratory symptoms Unknown