Clinical trial NCT04388358: Traditional Chinese Medicine for the Treatment of Perennial Allergic Rhinitis on Gut Microbiota and Immune-modulation
Official title: Study the Effects of Traditional Chinese Medicine for the Treatment of Perennial Allergic Rhinitis on Gut Microbiota and Immune-modulation in Humans
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Allergic Rhinitis
Keywords: Perennial allergic rhinitis; Gut microbiota; Mixe formula of Chinese medicine
Lead sponsor: Chang Gung Memorial Hospital
Sponsor class: OTHER
First posted: 2020-05-14
Enrollment: 33
Sex: ALL
Minimum age (years): 20
Maximum age (years): 60
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: 40 allergic rhinitis patients in the acute phase will be enrolled in the study. All the allergic patients should be confirmed those who are over 20 years old and hypersensitive to house dust mite allergens confirmed by MAST test before study. All patients were treated with mixed formula of Chinese medicine for one months.

Detailed description: Perennial allergic rhinitis is an important disease in traditional Chinese medicine (TCM) due to its high prevalence rate in Taiwan. In our previous studies, a new mixed formula of Chinese herbs was evaluated for the treatment of allergic rhinitis. In these studies, we found that immunoduoatory effects of Chinese medicine include: CD4+ T lymphocytes; Regulatory T cells; Dendritic cells, and Regulatory B cells. These results allow us to confirm the immunomodulatory effects of mixed formula of traditional Chinese medicine. In recent years, more and more attention has been paid to the effects of gut microbiota on immune-modulation. Many immunomodulaotry effects of allergic diseases were considered to be closely related to gut bacteria. However, the research on allergic rhinitis is still rare, especially related to TCM treatment. From our previous studies, it has been confirmed that TCM have an immunomodulatory effect on allergic rhinitis. Whether or not they are associated with gut microbiota changes is still unknown. This year, we compared the difference of composition and diversity of gut microbiota of allergic rhinitis patients and normal individual. Indeed, we found it were different between allergic patients and normal individuals. The results of this study will provide us the information to understand whether the immunemodulation of TCM treatment on allergic rhinitis is correlated with the changes of gut microbiota.

Eligibility criteria: Inclusion Criteria:

* Volunteer for study enrollment and sign inform consent
* Mite allergy confirmed by MAST test
* Over 20 years old
* Will have their blood collected twice and stool samples
* Allergic rhinitis patients in the acute phase will be treated with mixed formula of Chinese medicine for one months

Exclusion Criteria:

* Women who are pregnant or breast-feeding
* Under treatment of western medicine including steroid, antihistamine, leukotriene inhibitor, immunosuppressant or stop above medication less than one month
* Under acute inflammatory disease such as pneumonia, sinusitis, bronchitis and so on vasomotor type allergic rhinitis
* History of allergy or adverse effect to Chinese herbs, poor compliance of herbal medicine severe organ function impairment, such as heart failure, liver failure, renal failure (eGFR \<60 mL/min/1.73 m2)

Primary outcomes:
measure: Serum IgE level assessments and MAST test
timeFrame: On starting day (day 0)
Secondary outcomes:
measure: CD4+ Cell isolation and purification
timeFrame: Assessment of CD4+ on Day 0 and 1 month after completing treatment
measure: Quantification of mRNA expression by means of RT-PCR and real-time PCR
timeFrame: Assessment of mRNA on Day 0 and 1 month after completing treatment
measure: Gut microbiota data analysis procedures
timeFrame: Assessment of gut microbiota on Day 0 and 1 month after completing treatment
Other outcomes:
Locations:
city: Taoyuan
country: Taiwan
facility: Chang Gung Memorial Hospital
Study officials:
affiliation: Chang Gung Memorial Hospital
name: Sien-hung Yang, Ph.D
role: STUDY_DIRECTOR
References: