Qianqing Granules

This clinical trial uses placebo as a control to explore the effectiveness and safety of different doses of Qianqing Granules in the treatment of common cold (wind-heat and cold syndrome). It is divided into Phase IIa and Phase IIb, and clinical trials are carried out successively. The purpose of the Phase IIa clinical trial is to initially evaluate the effectiveness and safety of Qianqing Granules in the treatment of common colds (wind-heat and cold syndrome), and to conduct dose exploration. The Phase IIb clinical trial is based on the results of the Phase IIa clinical trial to further confirm the effectiveness and safety of Qianqing Granules in treating common colds (wind-heat and cold syndrome).

By exploring different dosages of Qianqing Granules in healthy subjects, we can examine the preliminary tolerance and safety of the human body and provide a safe dosage range for Phase II clinical trials.