Table 1

Study schedule

Study period
Time pointsScreening periodTreatment phase
Baseline1st day5th day10th day
Enrolment
 General condition
 Clinical symptoms
 Medical history
 Fulfilling inclusion and exclusion criteria
 Sign informed consent
Assessment
Primary outcome
 Saturation of peripheral oxygen (SpO2)
 Respiratory rate (RR)
Secondary outcomes
 The TCM syndrome score
 Infection-related index
 Ventilator-related indicators
 Blood gas analysis-related indicators
 Record of adverse events
 Compliance evaluation
 Safety assessment
  • TCM, traditional Chinese medicine.