Diagnostic and Therapeutic Applications of Microarrays in Heart Transplantation

This observational study is looking at how a new diagnostic system, the Molecular Microscope® Diagnostic System (MMDx), can improve the way doctors diagnose rejection in heart transplant patients. Currently, doctors use a system based on looking at tissue samples under a microscope. This study will compare that method with the MMDx, which uses molecular information from biopsies. The goal is to see if MMDx can provide more accurate diagnoses and help doctors make better treatment decisions. You can join if you are 18 or older and need a heart biopsy for clinical reasons. The study aims to enroll 900 participants and will measure how well MMDx can identify T cell and antibody-mediated rejection in heart transplant biopsies over two years.

Study design
This is an observational study involving 900 participants. It is not specified if it is randomized or blinded.
What's involved
You would undergo an endomyocardial biopsy, which involves taking two tissue samples instead of the usual one during a standard-of-care procedure.
Compensation
Not stated in the trial record.
Follow-up
The primary outcomes will be measured at 2 years.

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NCT02670408

Diagnostic and Therapeutic Applications of Microarrays in Heart Transplantation

Recruiting
Not specifiedAges 18+Observational
University of Alberta
~900 participants
Updated 2026-06-04 on ClinicalTrials.gov
What's tested:Endomyocardial biopsy

At a glance

Recruiting sites
4 of 13 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Assign molecular scores (probability) of T cell mediated rejection, antibody mediated rejection in heart transplant biopsies, in a reference set of 200 biopsies
Measured over 2 years
Cardiac Transplant Disorder

NCT02670408

Where you'd take part

This study runs at 13 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Alberta Transplant Applied Genomics Center, University of Alberta

    Edmonton, Alberta, Canadastudy coordinator listed

    Recruiting

  • Cardiac Transplantation Laboratory, The Victor Chang Cardiac Research Institute

    Darlinghurst, Australiastudy coordinator listed

    Recruiting

  • Department of Cardiac Surgery, Medical University of Vienna

    Vienna, Austriastudy coordinator listed

    Recruiting

  • Institute for Clinical and Experimental Medicine - IKEM

    Prague, Czechiastudy coordinator listed

    Recruiting

  • Advanced Heart Failure Transplant Unit

    A Coruña, Spainno site contact published

    Completed

  • Annette C. and Harold C. Simmons Transplant Institute, BaylorScott&White Research Institute

    Dallas, Texasno site contact published

    Completed

  • Cardiovascular Medicine, University of Utah Health

    Salt Lake City, Utahno site contact published

    Completed

  • Cedars-Sinai Heart Institute

    Los Angeles, Californiano site contact published

    Completed

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

  • Philip F Halloran, MD PhD · PRINCIPAL_INVESTIGATOR · University of Alberta

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Eligibility criteria

Inclusion

biopsy for clinical indications

Exclusion

no consent
pregnant women
  • Assign molecular scores (probability) of T cell mediated rejection, antibody mediated rejection in heart transplant biopsies, in a reference set of 200 biopsies2 years

    Create a molecular classifier that predicts antibody mediated and T cell mediated rejection, based on the archetypal analysis.