Kato Yojiro, Tojimbara Tamotsu, Iwadoh Kazuhiro, Koyama Ichiro, Nanmoku Koji, Kai Kotaro, Sannomiya Akihito, Nakajima Ichiro, Fuchinoue Shohei, Teraoka Satoshi
Department of Surgery, Kidney Center, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan.
Int Immunopharmacol. 2006 Dec 20;6(13-14):1984-92. doi: 10.1016/j.intimp.2006.07.018. Epub 2006 Aug 10.
Adverse effects of steroids have led to efforts to minimize their use in recipients of organ transplants. This study evaluated an early steroid withdrawal protocol including basiliximab, cyclosporine (CsA) and mycophenolate mofetil (MMF) in renal-transplant recipients.
Between January 2001 and April 2005, our early steroid withdrawal protocol was used in 130 patients who underwent renal transplantation. Immunosuppression consisted of CsA (6-8 mg/kg), MMF (2 g/kg) and methylprednisolone (MP); basiliximab was given as induction therapy (steroid withdrawal group). MP was administered in a dose of 500 mg or 250 mg at renal transplantation; thereafter, the dose was rapidly tapered and MP was withdrawn on day 14 post-transplant.
The incidence of acute rejection in the steroid withdrawal group was similar to that in the conventional steroid treatment group (without basiliximab) (18% vs. 21%). The severity of rejection episodes was similar in the two groups. Patient and graft survivals were 100% and 97% in the steroid withdrawal group. In 80 of the 130 patients (62%) in the steroid withdrawal group, MP was successfully withdrawn, with good allograft function during follow-up. In the other 50 patients (38%), MP was reinitiated because of acute rejection or other reasons. The success rate of steroid withdrawal 12 months after transplantation in recipients of ABO-compatible grafts was significantly higher than that in recipients of ABO-incompatible grafts (66% vs. 44%). The dose of MMF during the 12 months after renal transplantation was significantly lower in steroid reinitiated group than in the successful withdrawn group (p<0.05). Patients in the successful withdrawn group showed metabolic benefits such as lower cholesterol levels as compared with the steroid reinitiated group.
Although further follow-up is necessary to confirm our results, our protocol successfully permitted the early withdrawal of steroids in 62% of renal-transplant recipients, with no resumption of steroid treatment during 3 years of follow-up.
类固醇的不良反应促使人们努力减少其在器官移植受者中的使用。本研究评估了一种早期停用类固醇方案,该方案包括巴利昔单抗、环孢素(CsA)和霉酚酸酯(MMF),用于肾移植受者。
2001年1月至2005年4月期间,130例接受肾移植的患者采用了我们的早期停用类固醇方案。免疫抑制方案包括CsA(6 - 8mg/kg)、MMF(2g/kg)和甲泼尼龙(MP);巴利昔单抗作为诱导治疗(停用类固醇组)。肾移植时MP的剂量为500mg或250mg;此后,剂量迅速递减,移植后第14天停用MP。
停用类固醇组的急性排斥反应发生率与传统类固醇治疗组(无巴利昔单抗)相似(18%对21%)。两组排斥反应的严重程度相似。停用类固醇组的患者和移植物存活率分别为100%和97%。在停用类固醇组的130例患者中,有80例(62%)成功停用了MP,随访期间移植肾功能良好。在另外50例患者(38%)中,由于急性排斥反应或其他原因重新开始使用MP。ABO相容移植物受者移植后12个月停用类固醇的成功率显著高于ABO不相容移植物受者(66%对44%)。肾移植后12个月内,重新开始使用类固醇组的MMF剂量显著低于成功停用组(p<0.05)。与重新开始使用类固醇组相比,成功停用组的患者显示出代谢益处,如胆固醇水平较低。
尽管需要进一步随访以证实我们的结果,但我们的方案成功地使62%的肾移植受者早期停用了类固醇,在3年的随访期间无需恢复类固醇治疗。