for people ages 18 years and up (full criteria)
at La Jolla, California and other locations
study started
estimated completion



To evaluate the effectiveness of the OCS Heart System to resuscitate, preserve and assess hearts donated after circulatory death for transplantation to increase the pool of donor hearts available for transplantation.

Official Title

Clinical Trial to Evaluate the Safety and Effectiveness of The Portable Organ Care System (OCS™) Heart For Resuscitation, Preservation and Assessment of Hearts From Donors After Circulatory Death (DCD Heart Trial)


A prospective, randomized and concurrent controlled, non-inferiority pivotal trial in which subjects who receive a DCD donor heart transplant will be compared to subjects who receive a standard criteria donor heart transplant (Standard of Care 1 [SOC1] and Standard of Care 2 [SOC2] - from both randomized and concurrent control groups), adjusting for differences in risk factors.


Heart Transplant Heart preservation Beating heart transplant OCS Heart System Cold Storage DCD Heart Possible


For people ages 18 years and up

Donor Inclusion

  • Maastricht Category III DCD donor, defined as expected death after the withdrawal of life- supportive therapy (WLST)
  • Donor age 18-49 years old inclusive
  • Warm ischemic time (WIT) ≤ 30 mins, with warm ischemic time defined as: Time from when mean systolic blood pressure (SBP) is < 50 mmHg or peripheral saturation < 70% to aortic cross-clamp and administration of cold cardioplegia in the donor.

Donor Exclusion

  • Previous cardiac surgery
  • Known coronary artery disease
  • Cardiogenic shock or myocardial infarction, or
  • Sustained terminal ejection fraction (EF) of ≤ 50%, or
  • Significant valve disease except for competent bicuspid aortic valve

Recipient Inclusion

  • Primary heart transplant candidates
  • Age ≥ 18 years old
  • Signed: (1) written informed consent document; (2) authorization to use and disclose protected health information; and (3) consent to TransMedics' use of recipients' United Network for Organ Sharing (UNOS)/Organ Procurement and Transplantation Network (OPTN) data and recipients' Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) data.

Recipient Exclusion

  • Prior solid organ or bone marrow transplant
  • Chronic use of hemodialysis or diagnosis of chronic renal insufficiency
  • Multi-organ transplant
  • Investigator unwilling to randomize to either arm.


  • University of California San Diago not yet accepting patients
    La Jolla California 92037 United States
  • Cedars Sinai not yet accepting patients
    Los Angeles California 90048 United States


accepting new patients
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