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临床试验/NCT01525381
NCT01525381已完成不适用

Strategies to Improve Diagnosis and Treatment of Asthma in Canadians

Ottawa Hospital Research Institute1 个研究点 分布在 1 个国家目标入组 701 人开始时间: 2011年11月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
701
试验地点
1

研究概览

简要总结

Our study will enroll 644 randomly-selected Canadians who have been diagnosed with asthma by a physician within the previous five years. It will be determined what diagnostic tests were initially performed to make this diagnosis. Participants will undergo lung function testing over 6-8 weeks to determine their respiratory status and to confirm they have asthma. Participants may be followed up to one year depending on their test results.

研究设计

研究类型
Observational
观察模型
Cohort
时间视角
Prospective

入排标准

年龄范围
18 Years 至 100 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Patient must have a recent diagnosis of asthma by a physician. Diagnosis of asthma must have occurred within 5 years prior to entry into the study.
  • Patient must be at least 18 years old.

排除标准

  • Patients in whom methacholine challenge is contraindicated
  • Patients using chronic oral prednisone.
  • Patients with heart attack or stroke within three previous months, and those with known aortic or cerebral aneurysms.
  • Pregnant patients (unknown effect of methacholine on the fetus) and breastfeeding patients (unknown whether methacholine is excreted in breast milk).
  • Patients unable to provide informed consent.
  • Patients not able to perform spirometry and/or methacholine challenge testing.
  • Patients who have a greater than 10 pack-year smoking history (this will exclude patients with possible COPD).
  • Patients who currently have active pulmonary Tuberculosis
  • Patients who have had eye surgery in the past 3 months or who have a detached retina
  • Patients involved in another interventional asthma study

研究者

申办方类型
Other
责任方
Sponsor

研究点 (1)

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