Clinical Study: Sun Ten Ophiopogon Combination (Mai Men Dong Tang) Effectively Improves Symptoms of Allergic Asthma


Efficacy and Safety of Modified Mai-Men-Dong-Tang for

Treatment of Allergic Asthma 

By Ching Hsaing Hsu1, Chun Mei Lu2 and Tung Ti Chang3

1Department of Pediatrics, China Medical University Hospital

2TaiMont Biotec Inc., Tainan

3Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan



The aim of this study was to evaluate the efficacy and safety of a Chinese herbal formula modified Mai-Men-Dong-Tang (mMMDT) for treatment of persistent, mild-to-moderate asthma. A total of 100 asthmatic patients were enrolled and assigned to three treatment groups in this double-blind, randomized, placebo-controlled clinical trial. Over a period of 4 months, patients in groups A and B received 80 and 40 mg/kg/day of mMMDT, while those in group C received a placebo. Efficacy variables included changes in forced expiratory volume in 1 s (FEV1), symptom score, serum total immunoglobulin E (IgE), and dust mitespecific IgE. Safety assessments included complete blood count, and liver and kidney function. Relative to baseline, significantly greater increases in FEV1 were demonstrated for both A and B groups in comparison with the placebo-treated analog (both p < 0.05). Further, similar improvements in symptom score were observed for both mMMDT treatment groups. The serum total IgE for group A showed a decreasing tendency after treatment but no statistical difference was noted. Furthermore, no drug-related adverse effects were reported. Blood test, and liver and kidney function were within normal range during the study, with no marked changes demonstrated over time. In conclusion, the Chinese herbal formula mMMDT provided improvements in lung function and relieved asthma symptoms in our sample of patients. Given its efficacy and safety, we consider mMMDT a credible treatment regimen for persistent, mild-to-moderate asthma.


Key words: Mai-Men-Dong-Tang; allergic asthma; clinical trial

  1. Introduction
  2. Material and Methods
    1. Study design
    2. Randomization
    3. Baseline measurements
    4. Study visits
    5. Management of asthma
    6. Herbal preparation and dispensing
    7. Record of symptoms
    8. Determination of allergen-specific IgE antibodies
    9. Statistical analysis
  3. Results
    1. Patients
    2. Efficacy
    3. Safety
  4. Discussion
  5. References


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