荟萃分析:安慰剂治疗对胃食管反流疾病的影响。
摘要来源:
Aliment Pharmacol ther。 2010年7月; 32(1):29-42。 EPUB 2010 3月26日。PMID: 20353496“> 20353496” Kokkotou, J M Kelley, L Conboy, T J Kaptchuk, A J Lembo
Article Affiliation:Beth Israel Deaconess Medical Center, Boston, MA, USA.
Abstract:BACKGROUND: There appears to be a significant placebo response rate in clinical trials for胃食管反流疾病。关于决定因素和与安慰剂反应相关的情况,在治疗胃食管反流疾病(GERD)中相关的情况知之甚少。
目标: 以估算安慰剂响应率的大小trials for GERD and to identify factors that influence this response.
METHODS: A meta-analysis of randomized, double-blind, placebo-controlled trials, published in English language, which included>20 patients with GERD, treated with either a proton pump inhibitor or H(2)-receptor antagonist for至少2周。搜索了MEDLINE,COCHRANE和EMBASE数据库,仅考虑到报告全球胃灼热反应的研究。
结果: 总共24个研究包括9989例GERD患者。与安慰剂相比,响应主动治疗的汇总比值比为3.71(95%CI:2.78-4.96)。整体安慰剂反应的汇总估计值为18.85%(范围为2.94%-47.06%)。侵蚀性食管炎的患者的安慰剂反应率低于没有IT的患者(分别为11.87%和18.31%; P = 0.246)。安慰剂反应是显着的tly lower in studies of PPI therapy vs. studies of H(2) RAs (14.51% vs. 24.69%, respectively; P = 0.05).
CONCLUSIONS: The placebo response rate in randomized controlled trials for GERD is substantial.安慰剂反应较低与PPI的测试有关,但没有侵蚀性食管炎的存在。