抗-TNF治疗与风湿病患者心血管风险降低相关

2012-06-09 不详 网络

柏林(EGMN)——阿姆斯特丹自由大学医学中心的风湿病专家Michael T. Nurmohamed博士在欧洲风湿病学大会(ECR)年会上报告称,对100,000余例类风湿关节炎(RA)患者常规治疗资料的分析表明,与甲氨蝶呤或其他非生物性缓解病情抗风湿药物(DMARD)相比,抗肿瘤坏死因子(TNF)药物治疗可显著降低患者心血管事件风险。 研究者从Thomson Reuters MarketSca

柏林(EGMN)——阿姆斯特丹自由大学医学中心的风湿病专家Michael T. Nurmohamed博士在欧洲风湿病学大会(ECR)年会上报告称,对100,000余例类风湿关节炎(RA)患者常规治疗资料的分析表明,与甲氨蝶呤或其他非生物性缓解病情抗风湿药物(DMARD)相比,抗肿瘤坏死因子(TNF)药物治疗可显著降低患者心血管事件风险。

研究者从Thomson Reuters MarketScan 数据库收录的109,462例美国RA患者中,选取至少接受过1次处方量的抗-TNF药物、甲氨蝶呤或其他DMARD治疗的患者。研究者查阅自开具上述药物处方至心血管事件发生期间的病例资料,患者健康保险计划结束或患者停止使用上述药物6个月为随访结束时间点,以先到者为准。 该研究共纳入抗-TNF治疗48,210(患者·年)、甲氨蝶呤治疗13,540(患者·年)和其他非生物性DMARD治疗7,320(患者·年)的随访资料,接受上述3种药物单药治疗随访超过75,000(患者·年)。

随访期间,1,743例(1.6%)患者发生1次心肌梗死(MI)、不稳定心绞痛、心衰或卒中等心血管事件,主要为MI、不稳定心绞痛或心衰。研究者采用一系列Cox比例风险模型评估心血管事件风险与各种药物累积暴露的关联性,并校正患者人口统计资料、心血管药物使用、吸烟、共病、高血压、糖尿病、心血管事件史以及医疗资源使用情况。

分析结果显示,与未接受抗- TNF药物治疗者相比,每接受6个月抗- TNF药物治疗,患者所有心血管事件发生率下降13%,6个月抗- TNF药物治疗可使MI发生率降低20%,两者均具有统计学意义。此外,抗- TNF治疗减少心血管事件发生的效应具有累积性。与未接受抗-TNF药物治疗者相比,用药1、2和3年患者心血管事件发生率分别下降24%、42%和56%。研究者认为,该累积效应并不意外,因为对炎症的持续抑制作用将会使风险下降更为显著。分析结果还显示,与未接受抗- TNF药物治疗者相比,抗- TNF药物治疗可使≥50岁患者心血管风险显著下降14%,可使无甲氨蝶呤暴露的患者的心血管风险显著下降15%,但甲氨蝶呤或其他非生物DMARD治疗对心血管疾病未见显著影响。

研究者指出,虽然上述结果为“抗-TNF治疗降低RA患者心血管疾病风险效果优于DMARD治疗”的观点提供了新的旁证,但现有证据仍不足以明确支持早期接受抗-TNF治疗可最大程度地降低脑血管风险。 但他同时指出,该分析结果的确表明有效抑制炎症对RA患者非常必要。如果高剂量甲氨蝶呤或其他DMARD治疗在合理的时间内未能有效抑制炎症,应考虑采取抗-TNF生物制剂治疗。

研究者认为,风湿病治疗的目的是最大程度地降低RA活动性,最好是达到缓解。此外,还应降低心血管风险。如果RA患者疾病得到缓解而停止抗-TNF治疗,我们应该了解动脉炎性过程是否也得到缓解。有关这方面的研究正在进行中,这些研究或许能够揭示RA患者新的心血管风险生物标志物。届时,对RA患者心血管风险控制应遵循EULAR推荐指南(Ann. Rheum. Dis. 2010;69:325-31)。

研究者指出, RA患者动脉粥样硬化斑块破裂似乎较早,而炎性反应在该过程中起着非常重要作用。当患者接受抗-TNF药物或其他抗炎药物治疗时,斑块炎性反应或许也同时得到控制,因而斑块破裂延迟。这或许是抗-TNF药物降低心梗风险的机制所在。

研究者报告无相关利益冲突。

类似研究:

Bykerk VP, Ostör AJ, Alvaro-Gracia J, Pavelka K, Ivorra JA, Graninger W, Bensen W, Nurmohamed MT, Krause A, Bernasconi C, Stancati A, Sibilia J. Tocilizumab in patients with active rheumatoid arthritis and inadequate responses to DMARDs and/or TNF inhibitors: a large, open-label study close to clinical practice.Ann Rheum Dis. 2012 May 21

Berwanger O, Guimarães HP, Laranjeira LN, Cavalcanti AB, Kodama AA, Zazula AD, Santucci EV, Victor E, Tenuta M, Carvalho V, Mira VL, Pieper KS, Weber B, Mota LH, Peterson ED, Lopes RD; Bridge-Acs Investigators. Effect of a multifaceted intervention on use of evidence-based therapies in patients with acute coronary syndromes in Brazil: the BRIDGE-ACS randomized trial.JAMA. 2012 May 16;307(19):2041-9.

de Jong PH, Hazes JM, Barendregt PJ, Huisman M, van Zeben D, van der Lubbe PA, Gerards AH, de Jager MH, de Sonnaville PB, Grillet BA, Luime JJ, Weel AE.Induction therapy with a combination of DMARDs is better than methotrexate monotherapy: first results of the tREACH trial.Ann Rheum Dis. 2012 Jun 7.

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