托珠单抗单药治疗显微镜下多血管炎有效
作者:SakaiR,翻译:赵金霞
发布者:郭越审校者:王振青
背景与目的:
通过一项前瞻性单臂单中心队列研究评价托珠单抗单药用于显微镜下多血管炎诱导缓解治疗的疗效。
方法:
符合条件的患者年龄在20-80岁,均为符合Watt’s分类法的新发显微镜下多血管炎患者。7例患者接受8mg/kg托珠单抗静脉注射,每双周1次,应用2个月(五个疗程),之后为每个月静脉注射一次,应用10个月(10个疗程)。托珠单抗治疗1年后只进行随访而无任何处理。该方案中不允许使用糖皮质激素或其他免疫抑制剂。完全缓解(CR)被定义为间隔至少1个月的连续两次随访伯明翰血管炎活动评分均为0分。
结果:
6例患者中有2例患者在6个月时获得完全缓解(33.3%),12个月时有3例患者获得完全缓解。2例患者退出:一例因无效在第6周时退出,另一例因为6个月时疾病复发退出试验。一例患者在3个月时完全缓解而自愿退出。4例患者(66.7%)在托珠单抗治疗1年后仍保持无药持续缓解,随访6-15个月未复发。
结论:
托珠单抗单药治疗可以作为部分显微镜下多血管炎的替代治疗措施。
附原文:
AbstractOBJECTIVES:Toassesstheefficacyoftocilizumab(TCZ)monotherapyfortheremissioninductionofmicroscopicpolyangiitis(MPA)inaprospectivesingle-arm,single-center,cohort,pilotstudy.METHODS:Eligiblepatientswereagedbetween20and80yearsandwerenewlydiagnosedwithMPAaccordingtoWattsclassificationalgorithm.Sevenpatientsreceived8mg/kgofintravenousTCZfortnightlyforthefirsttwomonths(fivecourses),andmonthlyforthenext10months(10courses).OneyearafterTCZmonotherapy,thepatientswerefollowed-upwithoutanytreatment.Theprotocoldidnotpermittheusecorticosteroidsoranyotherimmunosuppressants.Completeremission(CR)wasdefinedastheBirminghamVasculitisActivityScoreof0attwoconsecutivevisitsmadeatleastamonthapart.RESULTS:CRwasachievedintwoofsixpatients(33.3%)atsixmonthsandthreepatients(50.0%)at12months.Twopatientswerewithdrawn:onebecauseofinefficacyatsixweeksandtheotherbecauseofflareatsixmonths.OnepatientvoluntarilywithdrewafterCRatthreemonths.Fourpatients(66.7%)couldbekeptdrug-freeafteroneyearofTCZwithoutrelapsefor6-15monthsatthelastvisit.CONCLUSION:TCZmonotherapymaybeanalternativetreatmentstrategyinsomepatientswithMPA.
引自:
SakaiR,KondoT,KikuchiJ,etal.Gorticosteroid-freetreatmentoftocilizumabmonotherapyformicroscopicpolyangiitis:asingle-arm,single-center,clinicaltrial.ModRheumatol.Mar2:1-28.[Epubaheadofprint]
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