沙利度胺治疗原发性肺纤维化患者的咳嗽:随机临床试验
2012/11/19
摘要
背景:原发性肺纤维化(IPF)是一种进展性且致命性的疾病,目前对其致病原因尚不清楚,也没有有效的治疗手段。有高达80%的IPF患者有咳嗽症状,常导致这些患者活动受限,而且对IPF患者的咳嗽也缺乏有效的治疗措施。
目的:研究沙利度胺抑制IPF患者咳嗽的有效性。
设计:为期24周的双盲试验,2种治疗、2个阶段的交叉临床试验(临床试验注册号:NCT00600028)
研究机构:1所大学的医学中心。
参与者:对98名参与者进行筛查,24名随机分配,23名接受治疗(78.3%为男性,平均67.6岁,平均FVC为70.4%预测值),20名完成两个治疗期。
检测指标:主要终点为咳嗽特异性生活质量(咳嗽生命质量问卷调查[CQLQ])。次要终点为咳嗽视觉模拟评分和圣乔治呼吸问卷[SGRQ]调查。对于所有检测指标,较低的评分表明咳嗽改善或呼吸相关生命质量改善。
结果:沙利度胺治疗组的CQLQ评分显著改善(与安慰剂组平均差异为-11.4,95% CI, -15.7- -7.0;P<0.001)。沙利度胺也能显著改善咳嗽视觉模拟评分(与安慰剂组平均差异为-31.2,95%CI:-45.2- -17.2;P<0.001)。与安慰剂组相比,采用沙利度胺治疗的患者,总SGRQ评分、SGRQ症状域评分和SGRQ影响域评分显著改善。沙利度胺治疗的患者,74%主诉出现副作用,而安慰剂组为22%,沙利度胺的主要副作用包括:便秘、头晕和不适。
局限性:本试验为一项单中心研究,持续时间短,样本量小,仅关注症状特异性生命质量。
结论:沙利度胺能改善IPF患者的咳嗽和呼吸相关生命质量。有必要进行大规模临床试验,证实上述结果。
(林江涛 审校)
Ann Intern Med. 2012 Sep 18;157(6):398-406.
Thalidomide for the treatment of cough in idiopathic pulmonary fibrosis: a randomized trial.
Horton MR, Santopietro V, Mathew L, Horton KM, Polito AJ, Liu MC, Danoff SK, Lechtzin N.
Abstract
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive, fatal disorder of unknown cause with no effective treatment. Cough affects up to 80% of patients with IPF, is frequently disabling, and lacks effective therapy.
OBJECTIVE: To determine the efficacy of thalidomide in suppressing cough in patients with IPF.
DESIGN: 24-week, double-blind, 2-treatment, 2-period crossover trial. (ClinicalTrials.gov registration number: NCT00600028)
SETTING: 1 university center.
PARTICIPANTS: 98 participants were screened, 24 were randomly assigned, 23 received treatment (78.3% men; mean age, 67.6 years; mean FVC, 70.4% predicted), and 20 completed both treatment periods.
MEASUREMENTS: The primary end point was cough-specific quality of life measured by the Cough Quality of Life Questionnaire (CQLQ). Secondary end points were visual analogue scale of cough and the St. George’s Respiratory Questionnaire (SGRQ). For all measures, lower scores equaled improved cough or respiratory quality of life.
RESULTS: CQLQ scores significantly improved with thalidomide (mean difference vs. placebo, -11.4 [95% CI, -15.7 to -7.0]; P < 0.001). Thalidomide also significantly improved scores on the visual analogue scale of cough (mean difference vs. placebo, -31.2 [CI, -45.2 to -17.2]; P < 0.001). In participants receiving thalidomide, scores from the total SGRQ, SGRQ symptom domain, and SGRQ impact domain improved compared with those of participants receiving placebo. Adverse events were reported in 74% of patients receiving thalidomide and 22% receiving placebo; constipation, dizziness, and malaise were more frequent with thalidomide.
LIMITATION: This was a single-center study of short duration and small sample size focused on symptom-specific quality of life.
CONCLUSION: Thalidomide improved cough and respiratory quality of life in patients with IPF. A larger trial is warranted to assess these promising results.
Ann Intern Med. 2012 Sep 18;157(6):398-406.
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