Predictive Ability of Therapeutic Risk Factors in Pediatric and Adult Asthma Patients
2017年5月25日 更新者:GlaxoSmithKline
The purpose of this study is to assess the predictive ability of three asthma risk markers: the ratio of controller medication to total asthma medication, an albuterol only marker, and an oral corticosteroid use marker, as well as to compare the precision of these tools between adult and pediatric patient populations.
This retrospective longitudinal analysis will use 2 different databases: a large managed care database and a large fee for service Medicaid database.
研究概览
地位
完全的
条件
研究类型
观察性的
注册 (实际的)
101437
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
4年 及以上 (孩子、成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
取样方法
概率样本
研究人群
The study intends to identify subjects at least 4 years of age with asthma and using asthma medications
描述
Inclusion Criteria:
- Subjects with asthma as determined by ICD-9 codes and asthma drug use
- at least 4 years of age
- use of at least 1 controller or at least 5 albuterol prescriptions in 12 months
Exclusion Criteria:
- Subjects with COPD or treatment for COPD
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
- 观测模型:队列
- 时间观点:追溯
队列和干预
团体/队列 |
干预/治疗 |
|---|---|
|
Pediatric participants
Pediatric participants (age 4 to 17) with a diagnosis of asthma
|
participants with an asthma diagnosis who also had at least one dispensing event of an asthma-related medication and had at least one asthma controller medication (inhaled corticosteroids containing inhalers, methylxanthines, leukotriene receptor antagonists, cromolyn sodium) or albuterol.
|
|
Adult participants
Adult participants (age 18 and older) with a diagnosis of asthma
|
participants with an asthma diagnosis who also had at least one dispensing event of an asthma-related medication and had at least one asthma controller medication (inhaled corticosteroids containing inhalers, methylxanthines, leukotriene receptor antagonists, cromolyn sodium) or albuterol.
|
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 |
|---|---|---|
|
Mean Ratio of Controller Medication to Total Asthma Medication
大体时间:January 1, 2004 to June 30, 2006: 3, 6, and 12 month follow-up periods
|
The ratio of controller medication (CM) to total asthma medication (AM), which is well established in predicting future asthma events in adults, was calculated as the ratio of the units of CMs used during the defined period divided by the sum of the units of CMs plus the units of inhaled short-acting beta-agonists used during the same period.
A CM is defined as any inhaled corticosteroid containing medication, methylxanthines, leukotriene receptor antagonists, or cromolyn sodium.
The ratio is calculated using all CM.
Asthma controllers are medications used to treat asthma on a regular basis.
|
January 1, 2004 to June 30, 2006: 3, 6, and 12 month follow-up periods
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Mean Number of Short-acting Beta-agonist (SABA) Canisters Used
大体时间:January 1, 2004 to June 30, 2006: 3, 6, and 12 month follow-up periods
|
The number of albuterol canisters dispensed is a marker that is well established in predicting future asthma events in an adult population.
|
January 1, 2004 to June 30, 2006: 3, 6, and 12 month follow-up periods
|
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。
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
2009年7月1日
初级完成 (实际的)
2010年4月1日
研究完成 (实际的)
2010年4月1日
研究注册日期
首次提交
2011年4月15日
首先提交符合 QC 标准的
2011年5月2日
首次发布 (估计)
2011年5月3日
研究记录更新
最后更新发布 (实际的)
2017年5月30日
上次提交的符合 QC 标准的更新
2017年5月25日
最后验证
2017年5月1日
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.