哮喘患者使用长效β2肾上腺素受体激动剂的特征
2012/12/31
摘要
目的:由于存在严重安全风险,国家食品药品监督局(FDA)推荐,对于采用哮喘控制治疗后哮喘仍未得到很好控制的患者,长效β2肾上腺受体激动剂(LABAs)的使用应该有所保留。本试验旨在评价2010年6月2日FDA出台安全措施推荐之前,LABAs的使用形式。
方法:数据来自于IMS健康计划索求数据库,该数据库收入的哮喘患者在2005年~2009年期间采用新的LABA治疗。检测激素(ICS)或白三烯受体拮抗剂(LTRAs)吸入治疗后,使用LABA的比例。计算药物治疗并发率(MCR),后者定义为LABA单一成分(SI)和非LABA药物重叠治疗的天数与SI LABA治疗的总天数的比值。4个标准用于评价LABA开始治疗前较差的哮喘控制。
结果:在228 047名哮喘患者中,大部分患者(96%)采用固定剂量联合(FDC)的LABA治疗。64%的SI LABA治疗和31%的FDC LABA治疗之前,存在使用ICS或LTRA。SI LABA的平均MCR为62%。约有一半的患者至少满足一项LABA使用前哮喘控制较差的标准。
结论:相当一部分采用LABA治疗的患者,LABA治疗之前无ICS或LTRA治疗,或无其他哮喘控制较差的指标。这些结果表明,在研究期内,临床实践并未完全遵照哮喘指南执行。
(刘国梁 审校)
J Asthma. 2012 Oct 30. [Epub ahead of print]
Characterization of Long-Acting Beta(2)-Adrenergic Agonists Utilization in Asthma Patients.
Kaplan S, Zhou EH, Iyasu S.
Source
Office of Surveillance and Epidemiology, Food and Drug Administration , Silver Spring, MD , USA.
Abstract
OBJECTIVE:Because of the serious safety risks, Food and Drug Administration (FDA) has recommended that long-acting beta(2)-adrenergic agonists (LABAs) be reserved for patients whose asthma cannot be adequately managed with asthma control medication. The objective of the study is to assess prescribing patterns for LABAs prior to the FDA’s drug safety communication issued on 2 June 2010.
METHODS: Data were extracted from IMS Health Plan Claims database for asthma patients who had a new LABA therapy during 2005-2009. The proportion of LABA incident episodes preceded by inhaled corticosteroid (ICS) or leukotriene receptor antagonists (LTRAs) was examined. The medication-concurrent ratio (MCR), defined as the ratio of overlapping therapy days of single-ingredient (SI) LABAs and non-LABA products to the total days of SI LABAs, was calculated. Four criteria were used to estimate poorly controlled asthma prior to LABA initiation.
RESULTS:Of the 228 047 asthma patients, fixed-dose combination (FDC) LABAs were used by the majority of patients (96%). Prior use of ICS or LTRAs was observed in 64% and 31% of SI and FDC LABA incident episodes, respectively. The median MCR for SI LABAs was 62%. Approximately half of the patients met at least one criterion for poorly controlled asthma prior to LABA use.
CONCLUSIONS: Substantial proportion of patients was prescribed LABAs without prior use of ICS or LTRAs, or other indicators of poor asthma control. These findings suggest that asthma guidelines were not entirely followed in clinical practice during the study period.
J Asthma. 2012 Oct 30. [Epub ahead of print]
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治疗时机问题:全身激素治疗儿童急性哮喘
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药物干预过敏原诱发的哮喘