Monitoring Asthma Treatment Using Exhaled Nitric Oxide
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 99
- 试验地点
- 7
- 主要终点
- symptom-free days
研究概览
简要总结
Asthma is a chronic inflammatory condition in which the airways develop increased responsiveness to various stimuli such as exposure to an allergen, cold air or exercise. It is characterized by airway hyper-responsiveness, inflammation, increased mucus production, and airway obstruction. Since inflammation is an important feature of asthma, the use of non-invasive tests to measure lung inflammation to monitor asthma are of interest.The purpose of the study is to relate costs associated with healthcare utilization and loss of work and school time to the primary health outcome of cumulative number of symptom-free days. This will enable the researchers to determine whether the costs of monitoring exhaled NO to regular management strategy in recently diagnosed asthma will be offset by reductions in other costs of asthma-related care, and, if not, whether the additional costs are likely to be acceptable in terms of the improvement in health outcomes as measured by the additional number of symptom-free days.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Prospective
入排标准
- 年龄范围
- 5 Years 至 14 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Male or female children, aged 6-14 years
- •A documented history of asthma for a period of at least 6 months
- •Mild to severe persistent asthma according to GINA guidelines
- •A documented history of allergic sensitization (positive skin prick test or specific IgE
- •Subject's guardian/parent should be able to complete a symptom score on behalf of the subject.
- •Subject's guardian/parent should be able to send a symptom score weekly by sms
- •Both parents have to give written informed consent to participate in the study
排除标准
- •Received any investigational study medication in the 4 weeks prior to screening Visit
- •Significant comorbidity such as concurrent infection, history of prematurity, history of bronchopulmonary dysplasia, cystic fibrosis, other chronic lung diseases, and other severe chronic diseases
- •Acute asthma exacerbation within 4 weeks of screening visit
- •Hospitalization within 12 weeks of screening visit
- •Systemic corticosteroids within 12 weeks of screening visit
- •Oral corticosteroid dependence
结局指标
主要结局
symptom-free days
时间窗: 1 year time frame with visits every 3 months
次要结局
- days spent in hospital,emergency room visits,physician or nurse contacts use of drugs, days on which school was missed, number of exacerbations(1 year time frame)