Staged Kidney Transplantation During Combined Heart/Kidney Transplantation

Обзор

The primary purpose of this study is to evaluate the safety and efficacy of ex vivo machine perfusion with staged implantation of kidney allografts during combined heart/kidney transplantation.

Подробное описание

Combined heart and kidney transplantation (H/KTx) is the treatment of choice for patients with concomitant heart failure and chronic- or end-stage kidney disease. H/KTx presents a logistical challenge, often involving multiple surgical teams and requiring extended operative time to perform both heart and kidney transplants. Additionally, during heart transplantation, recipients require anticoagulation and multiple inotropes and vasopressors to support heart function early after implantation. While necessary, these may be detrimental to the newly implanted kidney allograft, potentially contributing to vasoconstriction, bleeding, hypotension, and worsening ischemia-reperfusion injury. Unfortunately, delaying implantation leads to extended cold ischemic time which also may be detrimental to the graft. Delayed graft function (DGF) of the kidney allograft is defined as the need for dialysis in the first seven days after transplantation and has been shown to be an important risk factor for graft loss following H/KTx. Ultimately, H/KTx requires balancing recipient stability with cold ischemic time to optimize kidney graft function. New perfusion technology adds oxygenation to the perfusate of the kidney allograft, thereby resuscitating the organ during preservation and reducing ischemia-reperfusion injury. This study seeks to evaluate the safety and efficacy of planned delayed implantation to allow for improved recipient stability and coagulopathy, while using hypothermic oxygenated machine perfusion (HOPE) for kidney preservation.

Вмешательства

• Другое Planned delayed implantation of kidney allograft with ex vivo machine perfusion kidney preservation.
  During combined heart and kidney transplantation, heart and kidney allografts may be implanted during a single operative event, or with delayed kidney implantation in a second operative event. Timing of the delay is often determined by recipient stability and kidney availability; however, clinicians must balance recipient factors with accumulating cold ischemic time of the kidney allograft. This study uses hypothermic oxygenated machine perfusion to reduce ischemic injury to the kidney allograft

Первичные конечные точки

• Incidence of delayed graft function (DGF) of the kidney allograft [Срок оценки: 7 days]
• Number of patients with at least one adverse event [Срок оценки: 90 days]

Вторичные конечные точки (9)

• Number of Patients with Heart Primary Graft Dysfunction [Срок оценки: 24 hours]
• 6 Month Kidney allograft function [Срок оценки: 6 months]
• 12-month Kidney Allograft Function [Срок оценки: 12 months]
• intensive care unit length of stay [Срок оценки: 1 year]
• Hospital Length of Stay [Срок оценки: 1 year]
• Number of readmissions [Срок оценки: 90 days]
• Incidence of Kidney Allograft Rejection [Срок оценки: 1 year]
• Number of patients with Heart allograft rejection [Срок оценки: 1 year]
• 36-month kidney allograft function [Срок оценки: 36 months]

Критерии участия

Критерии включения

• Adult patients (18 years or older) undergoing combined heart and kidney transplantation at Cedars-Sinai Medical Center.

Критерии исключения

• Patients who undergo simultaneous heart/kidney transplantation in a single operative event due to medical necessity will be excluded.
• Patients with medical records flagged as "break-the-glass" or "research opt-out" within the center's electronic health record.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Не применимо

Модель

Одна группа

Маскирование

Открытое

Основная цель

Лечение

Центры проведения

США · 1 центр

• Cedars-Sinai Medical Center — Los Angeles

Публикации

• Kobashigawa J, Zuckermann A, Macdonald P, Leprince P, Esmailian F, Luu M, Mancini D, Patel J, Razi R, Reichenspurner H, Russell S, Segovia J, Smedira N, Stehlik J, Wagner F; Consensus Conference participants. Report from a consensus conference on primary graft dysfunction after cardiac transplantation. J Heart Lung Transplant. 2014 Apr;33(4):327-40. doi: 10.1016/j.healun.2014.02.027. Epub 2014 Mar PMID 24661451
• Jochmans I, Brat A, Davies L, Hofker HS, van de Leemkolk FEM, Leuvenink HGD, Knight SR, Pirenne J, Ploeg RJ; COMPARE Trial Collaboration and Consortium for Organ Preservation in Europe (COPE). Oxygenated versus standard cold perfusion preservation in kidney transplantation (COMPARE): a randomised, double-blind, paired, phase 3 trial. Lancet. 2020 Nov 21;396(10263):1653-1662. doi: 10.1016/S0140-673 PMID 33220737
• Lutz AJ, Nagaraju S, Sharfuddin AA, Garcia JP, Saleem K, Mangus RS, Goggins WC. Simultaneous Heart-kidney Transplant With Planned Delayed Implantation of the Kidney Graft After Ex Vivo Perfusion. Transplantation. 2023 Sep 1;107(9):2043-2046. doi: 10.1097/TP.0000000000004661. Epub 2023 Jun 5. PMID 37271866
• Ruzza A, Czer LS, Trento A, Esmailian F. Combined heart and kidney transplantation: what is the appropriate surgical sequence? Interact Cardiovasc Thorac Surg. 2013 Aug;17(2):416-8. doi: 10.1093/icvts/ivt172. Epub 2013 Apr 24. PMID 23615433

Идентификаторы

NCT: NCT06877169 · STUDY00003743

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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