Observation of the Respiratory Impedance and Inflammation in Cough Variant Asthma Patients Treated in Combination of Chanqin Granules.
试验速览
- 阶段
- 1 期
- 发起方
- 入组人数
- 120
- 试验地点
- 1
- 主要终点
- Impulse Oscillometry
研究概览
简要总结
This single-center, randomized, double-blind, placebo-controlled trial was undertaken at an outpatient clinic in Shuguang Hospital. Newly diagnosed cough variant asthma adult patients with the T.C.M. pattern of pathogenic-wind are randomly divided into treatment and control group, with 60 patients in each group. Clinical observation of the Respiratory Impedance and Inflammation in Cough Variant Asthma adults reated in Combination of Chanqin Granules.
详细描述
This single-center, randomized, double-blind, placebo-controlled trial was undertaken at an outpatient clinic in Shuguang Hospital. Newly diagnosed cough variant asthma adult patients with the T.C.M. pattern of pathogenic-wind are randomly divided into treatment and control group, with 60 patients in each group. All patients enrolled are treated with Budesonide + Formoterol Fumarate dry power (160/4.5ug bid) for inhalation. The treatment group are given additional Chanqin granulate (10g bid) and placebo granulate for controlled group. Investigators hypothesis that Chanqin granules may reduce day & night cough score as well as the respiratory impedance, inflammation statues, and improve T.C.M. syndrome after 8 weeks of treatment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Care Provider, Investigator)
盲法说明
Randomization sequences will be concealed in lightproof, sealed envelopes kept by a specified project manager and the sponsor, who are not involved in the recruitment, intervention, assessment, or statistical analysis. The treatment allocation will be blinded to the participants and investigators throughout the study, and the outcome assessors and statisticians will not be involved in the participants' screening and allocation. Each patient will receive a unique randomized number corresponding to the drug according to the group allocation. Furthermore, the intervention group type will be replaced by the letter A, B as blind codes of allocation. The blind codes will not be disclosed until the statistical analysis is completed.
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Diagnosis of cough variant asthma according to Western medicine
- •Diagnosis of cough with pathogenic wind syndrome according to TCM
- •Aged between 18 to 70 years, regardless of gender, race or educational and economic status
- •The cough symptom should last for at least 8 weeks
- •Willingness to participate and to sign the informed consent form
排除标准
- •Patients with history of smoking (or quite smoking for less than 6 months)
- •Systemic use of corticosteroids in the past 4 weeks
- •Upper or lower respiratory tract infection in the past 4 weeks
- •Incapable of corporation with spirometry and FeNO test
- •Other chronic respiratory disease eg: COPD, pulmonary cirrhosis
- •Women who are pregnant or preparing to become pregnant or breast feeding women
研究组 & 干预措施
treatment group
patients are treated with Budesonide + Formoterol Fumarate dry powder (160/4.5ug bid) for inhalation and additional Chanqin granules 10g three times a day. All granules will be taken orally with 200 ml warm water.
干预措施: Chanqin granules (Drug)
controlled group
patients enrolled in the research are treated with Budesonide + Formoterol Fumarate dry powder (160/4.5ug bid) for inhalation and Chanqin analogous granules. All granules will be taken orally with 200 ml warm water.
干预措施: Chanqin granules (Drug)
结局指标
主要结局
Impulse Oscillometry
时间窗: 2 week
The patients will be seated comfortably in a nonswivel chair. Nose clips were applied and a special mouthpiece will be used. For Impulse Oscillometry measurements (MasterScreen, CareFusion, San Diego, California) are performed according to the protocols of the European Respiratory Society. Patients will be advised to cradle their cheeks with their hands. Patients are allowed to breathe normally while the loudspeaker delivere intermittent multi-frequency impulses over a minimum of a 30-s period. A trained technician will guide and assist the patient during the procedure, which involved three to five sinusoidal readings, depending on the incidence of cough, swallowing, and holding of breath. The recordings with the best coherence at frequencies from 5 to 30 Hz will be chosen. The technician is also trained to capture subclinical leaks through the mouthpiece, and leaky recordings will be discarded. The Impulse Oscillometry parameters measured are Zrs、R5、R20、X5.
次要结局
- Cough severity(2 week)
- Exhaled nitric oxide(2 week)