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KMID : 0861020190340010013
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Korea Journal of Herbology
2019 Volume.34 No. 1 p.13 ~ p.21
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Efficacy and Safety of Codonopsis lanceolata (S. et Z.) Trautv. Extract on the Improvement of the Hypersensitivity Reaction in Allergic Rhinitis Patients
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Ahn Ha-Young
Boo Hee-Ock
Kim Hyung-Jun
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Abstract
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Objectives : This clinical trial is performed to investigate the effect of improving the hypersensitivity reaction and the safety of powdered ethanol extract Codonopsis lanceolata (S. et Z.) Trautv. for allergic patients.
Methods : This study was randomized, double blinded, placebo-controlled clinical trial. 60 allergic rhinitis subjects were randomly assigned to Treatment group(n=30) and Control group(n=30). They were received the test substance or placebo in their 1st and 2nd visit, and took it once a day, 1 powder bag per 1 time, for 8 weeks.
The freeze dried powder of Codonopsis lanceolata (S. et Z.) Trautv. was mixed with 30% ethanol and the filtrate was collected thrice with constant stirring of the mixture. The placebo was prepared in the same form as the test substance by replacing with corn starch. Total Nasal Symptom Score(TNSS) questionnaires and laboratory tests were performed at the screening and last visit to evaluate the efficacy. And to assess safety, vital signs and adverse events were confirmed at every visit. Statistical analysis about the result was performed using SAS 9.4.
Results : In treatment group, there was a significant decrease in B cell after taking the test substance(p<0.005). And there was a statistically significant difference between groups(p<0.005). Changes in nasal symptoms were not statistically significant between groups, and both groups showed statistically significant differences before and after the test(p<0.0001). Also there were no adverse events associated with the clinical trial product.
Conclusions : This clinical trial showed that Codonopsis lanceolata (S. et Z.) Trautv. extract was helpful in improving the hypersensitivity reaction in allergic patients without significant side effects.
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KEYWORD
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Allergic rhinitis, Hypersensitivity, Immunity, Codonopsis
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