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Mesenchymal Stromal Cell Therapy in Renal Recipients (MSCs)

2020年9月15日 更新者：M.E. J. Reinders、Leiden University Medical Center

Autologous Bone Marrow Derived Mesenchymal Stromal Cell Therapy in Combination With Everolimus to Preserve Renal Structure and Function in Renal Recipients

This study will test the hypothesis that MSCs in combination with Everolimus facilitate Tacrolimus withdrawal, reduce fibrosis and decrease the incidence of opportunistic infections compared to standard tacrolimus dose.

研究概览

地位

未知

条件

干预/治疗

详细说明

Kidney transplantation has improved survival and quality of life for patients with end-stage renal disease. Despite excellent short-term results, long-term survival of transplanted kidneys has not improved accordingly in the last decades. Calcineurin inhibitors (CNI) have been the cornerstone of immunosuppressive therapy for many years, due to their efficacy in preventing acute rejection. However, CNI have nephrotoxic side effects that can directly contribute to renal dysfunction and compromise long-term outcomes. Consequently there is a strong interest in immunosuppressive (IS) regimens that maintain efficacy for the prevention of acute rejection, whilst reducing nephrotoxicity.

In this perspective the combination of mesenchymal stromal cells (MSCs) with a mTor inhibitor (Everolimus (Certican®)) might be an optimal strategy to facilitate CNI (tacrolimus) withdrawal. MSCs have IS properties and roles in tissue repair and everolimus is a proliferation signal inhibitor with potent immunosuppressant effects. In experimental studies the combination of mTor inhibitor and MSCs was shown to attenuate alloimmune responses and to promote allograft tolerance.

In total 70 de novo renal recipients, 18-75 years of ages will be recruited from the transplant clinics of the LUMC. Thirty five of these patients will be included in the Certican/ and MSC group and 35 patients in the Certican/ standard dose tacrolimus group. Patients of the MSC treated groups will receive two doses of autologous BM derived MSCs IV, 7 days apart, 6 and 7 weeks after transplantation in combination with Certican® (1.5 mg b.i.d.). At the time of the second MSC infusion tacrolimus will be withdrawn in 2 weeks (after 1 week dose of tacrolimus will be halved, after 2 weeks stopped). Patients in the control group will receive Certican® (1.5 mg b.i.d.) and standard dose tacrolimus (through levels 6-8 ng/ml after 6 weeks).

Primary goal is evaluate whether concentration-controlled Certican® with MSCs compared to Certican® with standard tacrolimus in renal transplant recipients reduces fibrosis by quantitative Sirius Red scoring.

研究类型

介入性

注册 (实际的)

70

阶段

  • 阶段2

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

  • 荷兰
      • Leiden、荷兰、2333 ZA
        • Leiden University Medical Center

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 至 75年 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Subject is willing to participate in the study, must be able to give informed consent and the consent must be obtained prior to any study procedure.
  • Recipients of a first kidney graft from a deceased, living-unrelated or non-HLA identical living related donor > 50 years of age.
  • Panel Reactive Antibodies (PRA) ≤ 10%.
  • Patients must be able to adhere to the study visit schedule and protocol requirements.
  • If female and of child-bearing age, subject must be non-pregnant, non-breastfeeding, and use adequate contraception.

Exclusion Criteria:

  • Double organ transplant recipient.
  • Biopsy proven acute rejection (according to the Banff criteria) in the first 6 weeks after transplantation.
  • Patients with evidence of active infection or abscesses (with the exception of an uncomplicated urinary tract infection) before MSC infusion.
  • Patients suffering from hepatic failure.
  • Patients suffering from an active autoimmune disease.
  • Patients who have had a previous BM transplant.
  • A psychiatric, addictive or any disorder that compromises ability to give truly informed consent for participation in this study.
  • Use of any investigational drug after transplantation.
  • Documented HIV infection, active hepatitis B, hepatitis C or TB according to current transplantation inclusion criteria.
  • Subjects who currently an active opportunistic infection at the time of MSC infusion (e.g., herpes zoster [shingles], cytomegalovirus (CMV), Pneumocystis carinii (PCP), aspergillosis, histoplasmosis, or mycobacteria other than TB, BK) after transplantation.
  • Malignancy (including lymphoproliferative disease) within the past 2-5 years (except for squamous or basal cell carcinoma of the skin that has been treated with no evidence of recurrence) according to current transplantation inclusion criteria.
  • Known recent substance abuse (drug or alcohol).
  • Contraindications to undergo a BM biopsy.
  • Patients who are recipients of ABO incompatible transplants.
  • Cold ischemia time >30 hrs.
  • Patients with severe total hypercholesterolemia (>7.5 mmol/L) or total hypertriglyceridemia (>5.6 mmol/L) (patients on lipid lowering treatment with controlled hyperlipidemia are acceptable).

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：治疗
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：无（打开标签）

武器和干预

参与者组/臂
干预/治疗
有源比较器：Mesenchymal Stromal Cells + Everolimus

Intervention: two doses of autologous bone marrow (BM) derived Mesenchymal Stromal Cells IV, 7 days apart, 6 and 7 weeks after transplantation in combination with Certican® (1.5mg/day). Doses of MSCs will be 1-2x10^6 million MSCs per/kg body weight.

At the time of the second MSC infusion tacrolimus will be withdrawn in 2 weeks (after 1 week dose of tacrolimus wil be halved, after 2 weeks stopped)
药品：Mesenchymal Stromal Cells
Two doses of autologous bone marrow (BM) derived MSCs IV, 7 days apart, 6 and 7 weeks after transplantation. Doses of MSCs will be 1-2x10^6 million MSCs per/kg body weight
其他名称：
  • Bone marrow derived mesenchymal stromal cells
无干预：Everolimus + Tacrolimus
Patients in the control group will receive Certican® (1.5 mg b.i.d.) and standard dose tacrolimus (through levels 6-8 ng/ml after 6 weeks).

研究衡量的是什么？

主要结果指标

结果测量
大体时间
Fibrosis by quantitative Sirius Red scoring of MSC treated and untreated groups
大体时间：at 6 months compared to 4 weeks post transplant
at 6 months compared to 4 weeks post transplant

次要结果测量

结果测量
大体时间
出现不良事件的参与者人数
大体时间：6个月
6个月
Renal function and proteinuria
大体时间：6 months
6 months
Number of participants with CMV and BK infection an other opportunistic infections between groups
大体时间：6 months
6 months
composite end point efficacy failure (biopsy proven acute rejection, graft loss or death)
大体时间：6 months
6 months
Presence of donor specific antibodies and immunologic monitoring
大体时间：6 months
6 months
Progression of subclinical cardiovascular disease in the different treatment groups bij assessing echocardiographic parameters
大体时间：6 months
6 months

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Leiden University Medical Center

调查人员

  • 首席研究员：Marlies EJ Reinders, MD/PhD、Leiden University Medical Center

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始

2014年3月1日

初级完成 (实际的)

2020年1月1日

研究完成 (预期的)

2022年1月1日

研究注册日期

首次提交

2014年2月5日

首先提交符合 QC 标准的

2014年2月6日

首次发布 (估计)

2014年2月7日

研究记录更新

最后更新发布 (实际的)

2020年9月17日

上次提交的符合 QC 标准的更新

2020年9月15日

最后验证

2020年9月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • NL43712.000.13
  • 2013-000819-25 (EudraCT编号)

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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