Nocturnal Breathing and Sleep in Patients With Chronic Obstructive Pulmonary Disease Staying at Altitude
2015年5月18日 更新者：University of Zurich
The purpose of this study is to evaluate whether nocturnal breathing and sleep of patients with chronic obstructive pulmonary disease (COPD) are disturbed during a stay at moderate altitude.
研究概览
详细说明
This randomized cross-over trial evaluates the hypothesis that patients with chronic obstructive pulmonary disease experience nocturnal hypoxemia, periodic breathing and sleep disturbances when staying at moderate altitude.
Sleep studies and clinical evaluations will be performed during 2 days in Zurich (490 m, low altitude baseline) and during 2 days at Davos Clavadel (1650 m), and 2 days at Davos Jakobshorn (2590 m).
研究类型
介入性
注册 (实际的)
50
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
-
-
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Zurich、瑞士、CH-8091
- University Hospital Zurich, Pulmonary Division
-
-
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 至 75年 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
Inclusion Criteria:
- chronic obstructive pulmonary disease (COPD), GOLD grade 2-3
- residents at low altitude (<800 m)
Exclusion Criteria:
- Unstable condition, COPD exacerbation
- Mild (GOLD 1) or very severe COPD (GOLD 4)
- requirement for oxygen therapy at low altitude residence
- hypoventilation
- pulmonary hypertension
- more than mild or unstable cardiovascular disease
- use of drugs that affect respiratory center drive
- internal, neurologic or psychiatric disease that interfere with protocol compliance including current heavy smoking (>20 cigarettes per day), inability to perform 6 min walk test.
- previous intolerance to moderate altitude (<2600m).
- Exposure to altitudes >1500m for >2 days within the last 4 weeks before the study.
- Pregnant or nursing patients
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 分配：随机化
- 介入模型：交叉作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
其他：A: low-intermediate-high altitude
Altitude exposure sequence A, 490-1650-2590m
|
Stay at different altitudes: 490, 1650, 2590 m
|
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其他：B: low-high-intermediate altitude
Altitude exposure sequence B, 490-2590-1650m
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Stay at different altitudes: 490, 1650, 2590 m
|
|
其他：C: intermediate-high-low altitude
Altitude exposure sequence C, 1650-2590-490m
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Stay at different altitudes: 490, 1650, 2590 m
|
|
其他：D: high-intermediate-low altitude
Altitude exposure sequence D, 2590-1650-490m
|
Stay at different altitudes: 490, 1650, 2590 m
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Change in mean nocturnal oxygen saturation from baseline measured at 490 m
大体时间：Change in mean nocturnal oxygen saturation from 490 m baseline during 2 days at 2590 m
|
mean nocturnal oxygen saturation measured by pulse oximetry
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Change in mean nocturnal oxygen saturation from 490 m baseline during 2 days at 2590 m
|
|
Change in apnea/hypopnea index from baseline measured at 490 m
大体时间：Change in apnea/hypopnea index from 490 m baseline during 2 days at 2590 m
|
apnea/hypopnea index measured by polysomnography
|
Change in apnea/hypopnea index from 490 m baseline during 2 days at 2590 m
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Change in mean nocturnal oxygen saturation from baseline measured at 490 m
大体时间：Change in mean nocturnal oxygen saturation from 490 m baseline during 2 days at 1650 m
|
apnea/hypopnea measured by polysomnography
|
Change in mean nocturnal oxygen saturation from 490 m baseline during 2 days at 1650 m
|
|
Change in apnea/hypopnea index from baseline measured at 490 m
大体时间：Change in apnea/hypopnea index from 490 m baseline during stay at 1650 m
|
apnea/hypopnea index measured by polysomnography
|
Change in apnea/hypopnea index from 490 m baseline during stay at 1650 m
|
|
Change in subjective sleep quality from baseline measured at 490 m
大体时间：Change in subjective sleep quality from 490 m during 2 days at 2590 m
|
Visual analog scale of sleep quality
|
Change in subjective sleep quality from 490 m during 2 days at 2590 m
|
|
Change in subjective sleep quality from baseline measured at 490 m
大体时间：Change in subjective sleep quality from 490 m baseline during 2 days at 1650 m
|
Visual analog scale of sleep quality
|
Change in subjective sleep quality from 490 m baseline during 2 days at 1650 m
|
|
Change in reaction time from baseline measured at 490 m
大体时间：Change in reaction time from 490 m baseline during 2 days at 2590 m
|
psychomotor vigilance test reaction time
|
Change in reaction time from 490 m baseline during 2 days at 2590 m
|
|
Change in reaction time from baseline measured at 490 m
大体时间：Change in reaction time from 490 m baseline during 2 days at 1650 m
|
Psychomotor vigilance test reaction time
|
Change in reaction time from 490 m baseline during 2 days at 1650 m
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Tsogyal D Latshang, MD、University Hospital, Zürich
- 学习椅：Konrad E Bloch, MD、University Hsopital Zurich, Switzerland
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2013年6月1日
初级完成 (实际的)
2013年12月1日
研究完成 (实际的)
2013年12月1日
研究注册日期
首次提交
2013年6月3日
首先提交符合 QC 标准的
2013年6月5日
首次发布 (估计)
2013年6月6日
研究记录更新
最后更新发布 (估计)
2015年5月19日
上次提交的符合 QC 标准的更新
2015年5月18日
最后验证
2015年5月1日
更多信息
与本研究相关的术语
其他相关的 MeSH 术语
其他研究编号
- 2013-088B
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.