Efficacy and Safety of Beta-adrenoceptor Inverse Agonist, Nadolol, in Mild Asthma
研究概览
研究类型
注册 (预期的)
阶段
- 阶段2
联系人和位置
学习地点
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Missouri
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St. Louis、Missouri、美国、63110
- Washington University School of Medicine
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North Carolina
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Durham、North Carolina、美国、27704
- Duke University Medical Center
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Texas
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Houston、Texas、美国、77030
- Baylor College of Medicine
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-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
Individuals who meet all of the following criteria are eligible for enrollment as study participants:
1. Males and females with physician-diagnosed asthma between the ages of 18- 60.
2. Pre-bronchodilator FEV1 80% or greater than the predicted value
3. Baseline PC20 (based on FEV1) ≤ 4 mg/ml on methacholine challenge test.
4. Asthma Control Questionnaire Score (ACQ) <1.25
5. Baseline blood pressure ≥ 110/65mm Hg
6. Baseline pulse rate ≥ 60 beats/min.
7. Never-smoker or former-smoker < 10 pack.year and has not smoked within 1 year.
8. Able to complete diary cards and comply with study procedures.
9. Females of childbearing age may participate only if they have a negative pregnancy test, are non-lactating, and agree to practice an adequate birth control method (abstinence, combination barrier and spermicide, or hormonal) for the duration of the study.
Exclusion Criteria:
Subjects who meet ANY of the following criteria are not eligible for enrollment:
- Inability or unwillingness of the participant to give written informed consent
- History of upper/lower respiratory tract infection or asthma exacerbation requiring systemic steroids within 6 weeks of Visit 1
- Use of rescue medication (e.g., albuterol) more than twice per week during the week preceding Visit 1 excluding the use of such medication as preventative prior to exercise.
- History of hospitalization for asthma in the preceding year
- History of intubation for asthma
- Currently diagnosed with chronic obstructive pulmonary disease (COPD)
- Currently taking any beta-blocker medication
- History of adverse reaction or allergy to any beta-blocker medication
- History of neurological, hepatic, renal, or other medical conditions that may interfere with the interpretation of data or the patient's participation in the study or may increase safety concerns
- Current diabetes or hyperthyroidism
- History of cardiovascular diseases including uncontrolled hypertension (BP >160/100), ischemic heart disease, congestive heart failure, valvular heart disease or cardiomyopathy
- Known allergy or sensitivity to atropine or ipratropium bromide
- Abnormal entry laboratory values at baseline except for the following tests, where values outside the normal limits will be acceptable as follows: Hct ≥ 30%, platelet count > 100,000, ALT and AST < 1.5 x upper normal limit
- Known bleeding disorders, platelet count <100,000, PT or PTT > 1.5 x normal control (if participating in bronchoscopy sub-study)
- Known allergy to lidocaine (if participating in bronchoscopy sub-study)
- Documented or self-reported current history of alcoholism or drug abuse
- Participation in another research trial within 30 days of starting this trial
- Unwillingness or inability to comply with study procedures
- Inability to swallow the study medication capsule
- Use of any exclusion medication within the time period specified
- Pregnant or nursing
- Receiving allergen immunotherapy (desensitization injections)
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:双倍的
研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
---|---|
The change in methacholine provocative concentration causing a 20% fall (PC20) based on forced expiratory volume in 1 second (FEV1) between baseline visit and final dose dispensing visit.
大体时间:4 months
|
4 months
|
合作者和调查者
赞助
调查人员
- 学习椅:Nicola A. Hanania, MD, MS、Baylor College of Medicine
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.
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