Immunosuppressant optiMization Using the Prospera Assay in Kidney Transplant (IMPAKT) Randomized Controlled Trial

Natera, Inc.0 个研究点目标入组 750 人开始时间: 2026年7月1日最近更新: 2026年7月22日

适应症

试验速览

阶段: 不适用
状态: 尚未招募
发起方: Natera, Inc.
入组人数: 750
主要终点: Tier 1: Compare the number of randomized participants who experienced death related to allograft, using a win ratio hierarchical endpoint

研究概览研究设计入排标准结局指标研究者记录与标识符相似试验

研究概览

简要总结

IMPAKT is a research study that looks at whether a blood test called Prospera™ can help doctors better adjust anti-rejection medications, compared to the usual way doctors manage these medications without using this test.

详细描述

The IMPAKT study is a multi-center randomized controlled trial (RCT) in which stable low-risk kidney transplant (Tx) recipients receiving maintenance immunosuppression with tacrolimus, MPA dosage with or without corticosteroids will be randomized to the Immunosuppression optimization (Test) arm or the Standard of Care (SoC) Immunosuppression (Control) arm.

Participants will be enrolled at three months posttransplant and monitored with routine standard of care treatment and monthly Prospera blood draws from enrollment to 6 months posttransplant. All subjects will follow their center's SoC immunosuppressive therapy (IST) from enrollment to 6 months post-transplant. Subjects will be randomized at 6 months post-transplant to either the Test arm versus the Control arm.

The test arm will include participants who are managed with routine clinical care, along with a standardized dd-cfDNA protocol, to guide optimization of immunosuppression dosages. The control arm will include subjects who are managed with routine clinical care and receiving the standard of care (SoC) immunosuppression. This RCT will compare a hierarchical composite end point between the test and the control arm at 24 months post-transplant.

研究设计

研究类型: Interventional
分配方式: Randomized
干预模型: Parallel
主要目的: Treatment
盲法: None

入排标准

年龄范围: 18 Years 至 —（Adult, Older Adult）
性别: All
接受健康志愿者: 否

入选标准

•Subjects received a kidney transplant in the prior 3 months.
•Subjects receiving maintenance therapy consisting of tacrolimus, mycophenolate sodium or mycophenolate mofetil, and optionally corticosteroids, at the time of enrollment.
•Subjects received induction therapy comprising IL2 receptor antagonist or thymoglobulin, or received no induction therapy.
•18 years of age or older at time of signing informed consent.
•Able to read, understand and provide written informed consent, and willing and able to comply with the study requirements. If the subject is unable to sign the informed consent, a legally authorized representative (LAR) can consent on behalf of the subject.
•Subjects are at the site standard-of-care MPA dosage

排除标准

•Concurrent multiple solid organ or tissue transplants.
•History of a previous organ transplant (aside from present kidney transplant), or cellular transplant.
•DSA Positive according to local protocol, including either pre-transplant DSA positivity and de novo DSA positivity.
•Any prior dd-cfDNA results ≥1.0% or ≥78cp/mL after 28 days post-transplant.
•ABO Incompatible donor.
•A serious medical condition that may adversely affect ability to participate in the study (e.g, current diagnosis of cancer).
•Pregnancy.
•Received any induction therapy other than IL2 receptor antagonist or thymoglobulin.
•Receiving any maintenance immunosuppression other than tacrolimus, mycophenolate sodium or mycophenolate mofetil, and prednisone.
•Currently undergoing regular dialysis.
•Considered high-risk at the time of enrollment, as per the treating physician.
•Planned or ongoing use of other commercially available or investigational dd-cfDNA or blood-based gene expression profile assays for rejection surveillance, through randomization.

结局指标

主要结局

Tier 1: Compare the number of randomized participants who experienced death related to allograft, using a win ratio hierarchical endpoint