Randomized controlled trial on treatment of bronchial asthma of qi-deficiency cold syndrome type by pingchuan yiqi granule.

OBJECTIVE: To evaluate the effect and safety of Pingchuan Yiqi Granule in treating bronchial asthma of qi-deficiency cold syndrome type (BS-QDC). METHODS: With the randomized, positive agent parallel controlled design adopted, the 80 subjects enrolled were assigned in the ratio of 3:1 to two groups, the 60 patients in the trial group were treated with PYG and the 20 in the control group treated with Ruyi Dingchuan Pill (RDP), with the therapeutic course consisting of 7 days for both groups. The clinical effects, effects on TCM syndrome and the changes of lung function after treatment were observed. RESULTS: The effect of the treatment on asthma in the trial group: clinically controlled rate was 6.67%, markedly effective rate 51.67%, improved rate 33.33% and ineffective rate 8.33%; and the corresponding rates in the control group were 5.00%, 50.00%, 30.00%, and 15.00% respectively. Comparison between the two groups showed insignificant difference (P>0.05). The effect on TCM syndrome in the treated group: clinically controlled rate was 11.67%, markedly effective rate 58.33%, effective rate 21.67% and ineffective rate 8.33%; and those in the control group were 10.00%, 50.00%, 30.00% and 10.00% respectively, also showing insignificant difference between the two groups (P>0.05). Lung function test showed that the change on forced expiratory volume in 1 second (FEV1) after treatment in the trial group was of statistical significance (P<0.05), but no significant difference was shown in the change of peak expiratory flow (PEF, P>0.05); while the changes in the control group were just the opposite, showing insignificance in FEV1 (P>0.05) but significance in PEF (P<0.05). Comparison of the therapeutic effect on lung function between the two groups showed no significant difference (P>0.05). No adverse reaction was found in either group in the course of treatment. CONCLUSION: PYG used to treat BS-QDC is effective and safe, it's effect is similar to that of RDP.

[A randomized controlled trial of Yiqi Pingchuan Granule in treating acute attack of bronchial spasm due to asthma of qi deficiency and cold syndrome].

OBJECTIVE: To evaluate the safety and efficacy of Yiqi Pingchuan Granule in treating acute attack of asthma due to qi deficiency and cold syndrome. METHODS: A randomized controlled trial was conducted. A total of 80 patients with an acute attack of asthma were included. They were allocated into two groups randomly in a ratio of three to one. Sixty patients in the treatment group received Yiqi Pingchuan Granule and 20 patients in the control group received Ruyi Dingchuan Pill. Patients in both groups were treated for 7 days. RESULTS: There were no significant differences in traditional Chinese medicine syndrome, clinical symptoms and lung function between the two groups (P>0.05). After treatment, the forced expiratory volume in 1 second was increased in the treatment group (P<0.05), and the peak expiratory flow was accelerated in the control group (P<0.05). No significant side effects were noted in both groups. CONCLUSION: Yiqi Pingchuan Granule is safe and effective in treating acute attack of asthma due to qi deficiency and cold syndrome.