■移植后淋巴增生性疾病(PTLD)是一种罕见但危及生命的恶性肿瘤,发生在实体器官移植后的免疫抑制(IS)环境中。包含belatacept的IS方案与EB病毒(EBV)血清阴性肾移植受者的PTLD风险增加有关,在这个人群中使用belatacept是禁忌的。然而,在EBV血清阳性的肾移植受者中,基于belatacept的方案对PTLD风险和结局的影响尚不明确.
在2010年至2019年期间,进行了一项病例对照研究,以调查组合IS方案如何影响大型移植中心肾移植受者的PTLD风险和生存结局。总的来说,确定了17例PTLD,并按年龄与无PTLD的对照组1:2匹配。性别,和移植的器官。我们比较了基线临床特征,检查IS方案的变化,病毒载量,和肾功能随着时间的推移,并评估了事件发生时间分析,包括移植物排斥和存活。
■PTLD病例在基线特征方面与匹配对照非常相似,尽管EBV血清状态的预期差异趋于显着(42.9%的PTLD病例为供体阳性/受体阴性vs.8.3%的控制,p=0.063)。PTLD病例接受治疗的可能性并不比对照组高。Belatacept与移植物排斥或失败无关,重新移植,住院治疗,或存活率下降。
■Belatacept与PTLD的风险增加无关,并且与PTLD病例或整个队列的生存率降低无关.我们的病例对照研究支持以下概念:belatacept仍然是EBV血清阳性肾移植患者中IS的安全有效选择。
UNASSIGNED: Post-transplant lymphoproliferative disorder (PTLD) is a rare but life-threatening malignancy that arises in the setting of immunosuppression (IS) after solid organ transplant. IS regimens containing belatacept have been associated with an increased risk of PTLD in Epstein-Barr virus (EBV)-seronegative renal transplant recipients, and the use of belatacept is contraindicated in this population. However, the impact of belatacept-based regimens on PTLD risk and outcomes in EBV-seropositive renal transplant recipients is less well characterized.
UNASSIGNED: A case-control study was conducted to investigate how combinatorial IS regimens impact the risk of PTLD and survival outcomes in renal transplant recipients at a large transplant center between 2010 and 2019. In total, 17 cases of PTLD were identified and matched 1:2 to controls without PTLD by age, sex, and transplanted organ(s). We compared baseline clinical characteristics, examined changes in IS regimen, viral loads, and renal function over time, and evaluated time-to-event analyses, including graft rejection and survival.
UNASSIGNED: Cases of PTLD largely resembled matched controls in terms of baseline characteristics, although expected differences in EBV serostatus trended toward significance (42.9% of PTLD cases were donor-positive/recipient-negative vs. 8.3% controls, p = 0.063). PTLD cases were not more likely to have received belatacept than controls. Belatacept was not associated with graft rejection or failure, re-transplant, hospitalization, or decreased survival.
UNASSIGNED: Belatacept was not associated with an increased risk of PTLD, and was not associated with decreased survival in either PTLD cases or in the entire cohort. Our case-control study supports the concept that belatacept remains a safe and effective option for IS in EBV-seropositive renal transplant patients.