此页面是自动翻译的,不保证翻译的准确性。请参阅 英文版 对于源文本。

Conversion to Everolimus From Calcineurin Inhibitor With Mycophenolic Acid: Impact on Long Term Renal Function in Liver Transplantation.

2021年1月12日 更新者:Zakiyah Kadry、Milton S. Hershey Medical Center

A Randomized Prospective Trial of Conversion to Everolimus Therapy From Calcineurin Inhibitor Based Maintenance Immunosuppression in Association With Mycophenolic Acid in Liver Transplantation: Examination of Impact on Long Term Renal Function.

This study will examine the renal sparing impact of implementing a strategy of conversion to everolimus from a calcineurin inhibitor based immunosuppressive protocol at 3 months post liver transplant

研究概览

详细说明

Given the increasing proportion of patients having renal failure at the time of transplant, with the nephrotoxic effect of calcineurin inhibitor based immunosuppression associated with its long term negative survival impact, this study proposes to examine the renal sparing impact of conversion to everolimus from a calcineurin inhibitor based immunosuppressive protocol at 3 months post liver transplant. The 3 month time point was chosen to allow for the switch to everolimus to occur at a period of stable post transplant liver function when both technical and rejection risks are lower. The 3 month cut off was also chosen because of data indicating that worsening renal function at 4 weeks, 3 months and 1 year post transplant is an independent risk factor for the development of chronic renal failure and end stage renal disease after orthotopic liver transplantation. 24 patients will be randomized into 2 arms:

Arm A: Conversion to Everolimus immunosuppression combined with mycophenolic acid (Myfortic: MPA), and complete discontinuation of Calcineurin inhibitor at 3 months post transplant.

Arm B: Continuation with standard immunosuppressive therapy consisting of Calcineurin inhibitor associated with mycophenolic acid (Myfortic: MPA).

Follow up: 2 years.

研究类型

介入性

注册 (实际的)

24

阶段

  • 不适用

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

    • Pennsylvania
      • Hershey、Pennsylvania、美国、17033
        • Penn State College of Medicine; Penn State Milton S Hershey 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 70年 (成人、年长者)

接受健康志愿者

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Ability and willingness to provide written informed consent and adhere to study regimen.
  • Primary deceased donor liver transplant recipients 18-70 years of age
  • Functioning allograft at randomization (AST, ALT, Total Bilirubin levels ≤3 times ULN, and AlkP and GGT levels ≤ 5 times ULN). Elevated GGT alone, in combination with AST, ALT, total bilirubin and AlkP within defined range does not exclude patients from randomization.
  • Recipients on an immunosuppressive regimen of corticosteroids and tacrolimus.
  • Confirmed recipient HCV status at Screening (either by serology or PCR).
  • Abbreviated MDRD eGFR ≥ 30 mL/min/1.73m2. Local and central serum creatinine results within 5 days prior to randomization, however no sooner than Day 25 post-transplantation.
  • Verification of at least one tacrolimus trough level of ≥ 8 ng/mL one week prior to randomization. Target trough levels above 8 ng/mL prior to randomization.
  • Patients able to take oral medication at time of randomization.

Exclusion Criteria:

  • Recipients of multiple solid organ or islet cell tissue transplants, or have previously received an organ or tissue transplant. Combined liver kidney transplant recipients.
  • Living donor or split liver recipients.
  • History of malignancy of any organ system within past 5 years whether or not there is evidence of local recurrence or metastases, other than non-metastatic basal or squamous cell carcinoma of the skin or HCC.
  • Hepatocellular carcinoma that does not fulfill Milan criteria (1 nodule ≤ 5 cm, 2-3 nodules all < 3 cm, per explant histology of recipient liver.
  • Use of antibody induction therapy.
  • Patients with known hypersensitivity to the drugs used on study or their class, or to any of the excipients.
  • Recipients of ABO incompatible transplant grafts.
  • Recipients of Hepatitis B surface antigen or HIV donor organs.
  • Surgical or medical condition, which might significantly alter absorption, distribution, metabolism and excretion of study drug.
  • Women of child-bearing potential (WOCBP): all women physiologically capable of becoming pregnant, including women whose career, lifestyle, or sexual orientation precludes intercourse with a male partner and women whose partners have been sterilized by vasectomy or other means, UNLESS (1) they meet the following definition of post-menopausal: 12 months of natural (spontaneous) amenorrhea or 6 months of spontaneous amenorrhea with serum FSH levels >40 mIU/m, or (2) have past 6 weeks from surgical bilateral oophorectomy with or without hysterectomy or (3) are using one or more of the following methods of contraception: surgical sterilization (e.g., bilateral tubal ligation, vasectomy), hormonal contraception (implantable, patch, oral), copper coated IUD and double-barrier methods ( any double combination of male or female condom with spermicidal gel, diaphragm, sponge, cervical cap). Periodic abstinence (e.g., calendar, ovulation, symptothermal, post-ovulation methods) and withdrawal are not acceptable methods of contraception. Reliable contraception should be maintained throughout and for 3 months after study drug discontinuation.
  • History of coagulopathy or medical condition requiring long-term anticoagulation which would preclude liver biopsy after transplantation. (Low dose aspirin treatment or interruption of chronic anticoagulant is allowed).

Enrollment Exclusion - Randomization

  • Severe hypercholesterolemia (>350 mg/dL; >9 mmol/L) or hypertriglyceridemia (>500 mg/dL; >8.5 mmol/L) within 6 months of transplantation. Controlled hyperlipidemia is acceptable at time of randomization.
  • Platelet count < 50,000/mm3 at randomization.
  • Absolute neutrophil count < 1,000/mm³ or white blood cell count <2,000/mm³ at randomization.
  • Patients positive for HIV: Negative laboratory results within 6 months before randomization are acceptable.
  • Clinically significant systemic infection requiring IV antibiotics at randomization. Patients in a critical care setting at randomization requiring life support measures such as mechanical ventilation, dialysis, or vasopressor agents.
  • Patients on renal replacement therapy within 7 days prior to randomization.
  • Thrombosis of major hepatic arteries, major hepatic veins, portal vein and inferior vena cava. Results obtained within 5 days prior to randomization are acceptable, however no sooner than Day 25 post-transplantation.
  • Acute rejection requiring antibody therapy or more than one steroid sensitive episode of acute rejection during the run-in period. Includes patients who have not completed steroid treatment for acute rejection within 7 days prior to randomization.

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:预防
  • 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:Calcineurin Inhibitor with Mycophenolic Acid
Calcineurin inhibitor immunosuppression with mycophenolic acid
Comparison Arm: Continuation with standard immunosuppressive therapy consisting of Calcineurin inhibitor associated with mycophenolic acid (Myfortic: MPA).
其他名称:
  • Tacrolimus (Prograf)
  • Cyclosporine (Gengraf)
  • Mycophenolic Acid (Myfortic)
实验性的:Everolimus with Mycophenolic Acid
Conversion to Everolimus immunosuppression combined with mycophenolic acid (Myfortic: MPA), and complete discontinuation of Calcineurin inhibitor at 3 months post transplant.
Conversion to Everolimus immunosuppression combined with mycophenolic acid (Myfortic: MPA), and complete discontinuation of Calcineurin inhibitor at 3 months post transplant.
其他名称:
  • Zortress; Mycophenolic Acid (Myfortic)

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Renal Function as Measured by 24 Hour Urine Creatinine Clearance
大体时间:6 months, 1 year, and 2 years
Renal Function was assessed by 24 hr urine collection creatinine clearance measured (mL/min). 24 Hr urine collection was assessed at baseline, 6 months, 1 year, and 2 years post transplant.
6 months, 1 year, and 2 years
Renal Function as Measured by Serum Creatinine Level
大体时间:6 months, 1 year, and 2 years
Serum creatinine levels were assessed at 6 months, 1 year, and 2 years post transplant
6 months, 1 year, and 2 years
Renal Function as Measured by Cockcroft Gault Creatinine Clearance
大体时间:6 months, 1 year, and 2 years
The Cockcroft-Gault formula for estimating creatinine clearance was determined at 6 months, 1 year, and 2 years post transplant
6 months, 1 year, and 2 years
Renal Function as Measured by Modification of Diet in Renal Disease (MDRD) Estimated Glomerular Filtration Rate (eGFR)
大体时间:6 months, 1 year, and 2 years
Modification of Diet in Renal Disease (MDRD) estimated Glomerular Filtration Rate (eGFR) was assessed at 6 months, 1 year, and 2 years post transplant.
6 months, 1 year, and 2 years
Renal Function as Measured by Iothalamate Clearance
大体时间:6 months, 1 year, and 2 years
Iothalamate Clearance was assessed at 6 months, 1 year, and 2 years post transplant.
6 months, 1 year, and 2 years

其他结果措施

结果测量
措施说明
大体时间
Recipient and Donor Genotyping for Selected Variants of CYP3A5, ABCB1 (MDR1), and CYP4A Genes
大体时间:2 years
A blood sample was obtained from recipients and donors to measure gene polymorphism effects on metabolism of calcineurin inhibitor and everolimus. The polymorphisms are represented as the number of SNP occurrences for the CYP3A5, ABCB1 (MDR1) gene, and CYP4A4*22 genes.
2 years

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。

调查人员

  • 首席研究员:Zakiyah Kadry, MD、Penn State College of Medicine; Penn State Milton S Hershey 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 (实际的)

2013年12月16日

初级完成 (实际的)

2019年7月31日

研究完成 (实际的)

2019年7月31日

研究注册日期

首次提交

2013年8月16日

首先提交符合 QC 标准的

2013年9月3日

首次发布 (估计)

2013年9月6日

研究记录更新

最后更新发布 (实际的)

2021年1月29日

上次提交的符合 QC 标准的更新

2021年1月12日

最后验证

2021年1月1日

更多信息

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.

Calcineurin Inhibitor的临床试验

3
订阅