GUARDIAN Registry for Heart Transplant Outcomes

This study, called GUARDIAN, is collecting information on patients who receive heart transplants. It aims to see how well donor hearts transported using the SherpaPak Cardiac Transport System (a special device for keeping hearts cold during transport) perform compared to older methods. Researchers will look at how many patients experience problems like primary graft dysfunction (when the new heart doesn't work well right away) or right ventricular dysfunction (a problem with one of the heart's pumping chambers) one year after transplant, and how long patients stay in the ICU. You may be able to join if you are a male or female heart transplant candidate, including children, whose donor heart meets institutional requirements. This study is currently collecting data from past and new patients.

Study design
This is an observational registry study that will include up to 3000 patients globally. It collects data from existing patient records and new patients undergoing heart transplantation.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed from transplant through one year post-transplantation, with data collected at various time points up to five years.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT04141605

Global Utilization And Registry Database for Improved heArt preservatioN

Enrolling by Invitation
Not specifiedAll AgesObservational
Paragonix Technologies
~3,000 participants
Updated 2025-05-31 on ClinicalTrials.gov
What's tested:SherpaPak Cardiac Transport System

At a glance

Recruiting sites
0 of 22 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Number of Patients with Primary Graft Dysfunction
Measured over one year
+4 more outcomes measured
Heart Diseases
Heart Failure
Heart Defects, Congenital

NCT04141605

Where you'd take part

This study runs at 22 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • AdventHealth Orlando

    Orlando, Floridano site contact published

  • Allgemeines Krankenhaus Wien

    Vienna, Austriano site contact published

  • Baylor University Medical Center

    Dallas, Texasno site contact published

  • Cincinnati Children's Hospital

    Cincinnati, Ohiono site contact published

  • Duke University

    Durham, North Carolinano site contact published

  • Hospital Clínico Universitario de Valladolid

    Valladolid, Spainno site contact published

  • Hospital Universitario 12 de Octubre

    Madrid, Spainno site contact published

  • Kansas University Medical Center

    Lawrence, Kansasno site contact published

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Andreas Zuckermann, MD · PRINCIPAL_INVESTIGATOR · ALLGEMEINES KRANKENHAUS WIEN

This trial hasn't published a contact. View it on ClinicalTrials.gov

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Eligibility criteria

Inclusion

Donor and donor hearts matched to the prospective recipient based upon institutional medical practice
Registered male or female primary heart transplant candidates including pediatric candidates

Exclusion

Donor and donor hearts that do not meet institutional clinical requirements for transplantation
When safe connection with the aorta cannot be made, e.g., due to lack of enough length of the aortic root
Patients who are incarcerated persons (prisoners)
Patients who have had a previous organ transplant
  • Number of Patients with Primary Graft Dysfunctionone year

    Less than 40% LVEF by echocardiography or hemodynamics with RAP greater than 15 mm Hg, PCWP greater than 20 mm Hg, CI less thann 2 L/min/m\^2, hypotension with MAP less than 70 mm Hg (lasting more than 1 hour)

  • Number of Patients with Right Ventricular Dysfunctionone year

    hemodynamics with RAP grater than 15mm Hg, PCWP less than 15 mm Hg, CI less than 2 L/min/m\^2, TPG less than 15mm Hg/pulmonary artery systolic pressure less than 50 mmHg OR need for RVAD

  • Length of ICU Stayone year

    Length of time patient admitted to the intensive care unit post transplant

  • Length of Hospital Stayone year

    Length of time before patient is discharged from the hospital post transplant

  • Survival5 years

    The length of patient survival up to 5 years will be compared