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Outcomes AlloMap Registry: the Long-term Management and Outcomes of Heart Transplant Recipients With AlloMap Testing (OAR)

This study is currently recruiting participants.
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Verified April 2015 by CareDx ( XDx )
Information provided by (Responsible Party):
CareDx ( XDx ) Identifier:
First received: April 11, 2013
Last updated: April 20, 2015
Last verified: April 2015
The objective of this registry is to observe short and long term clinical outcomes in heart transplant recipients who receive regular AlloMap testing as part of allograft rejection surveillance.

Cardiac Transplant Failure Cardiac Transplant Rejection Heart Diseases

Study Type: Observational [Patient Registry]
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Target Follow-Up Duration: 5 Years
Official Title: Outcomes AlloMap Registry Study: the Clinical Long-term Management and Outcomes of Heart Transplant Recipients With Regular Rejection Surveillance Including Use of AlloMap Gene-expression Profiling Testing

Resource links provided by NLM:

Further study details as provided by CareDx ( XDx ):

Primary Outcome Measures:
  • Vital status of heart transplant recipient [ Time Frame: 5 Years ]

    Hospitalizations and causes (i.e. infections or graft dysfunction (classified as: acute cellular rejection, antibody mediated rejection , cardiac allograft vasculopathy or non specific etiology of graft dysfunction

    Cancers (newly diagnosed and/or recurrent): onset and classification of types of cancers

Secondary Outcome Measures:
  • Surveillance visit schedules and patient management parameters [ Time Frame: 5 Years ]
    Endomyocardial biopsy and histology grades of rejection; left ventricular echocardiograms and ejection fractions; maintenance immunosuppressive drugs categories and doses/ blood levels; AlloMap scores and score patterns

Biospecimen Retention:   Samples Without DNA
RNA isolated from peripheral blood mononuclear cells (PBMC)

Estimated Enrollment: 2000
Study Start Date: March 2013
Estimated Study Completion Date: December 2018
Estimated Primary Completion Date: December 2018 (Final data collection date for primary outcome measure)
Heart transplant recipients
Heart transplant rejection surveillance including AlloMap testing

Detailed Description:

The standard of care in adult heart transplant recipients has been to perform periodic endomyocardial biopsies for surveillance for rejection. Because of the risks and discomforts associated with the biopsy procedure, a non-invasive test (AlloMap) based on gene-expression profiling of peripheral blood was developed and introduced in 2005 to identify heart transplant recipients who have a low probability of rejection at the time of protocol surveillance testing. The schedule of AlloMap surveillance testing has been derived from the customary timing of surveillance biopsies: e.g. at 1 to 2 month intervals for patients who are 6 and 12 post-transplantation, and at 3, 4 or 6 months after the first year post-transplantation.

In the large multicenter IMAGE (Invasive Monitoring Attenuation by Gene Expression Profiling) 602 patients in the United States who had undergone cardiac transplantation at least 6 months prior were randomized 1:1 to either surveillance with routine biopsy or AlloMap testing. Patients in both groups were also monitored with echocardiography. A primary outcome event was defined as an episode of rejection with hemodynamic compromise, graft dysfunction due to other causes, death or retransplantation. Over a median follow-up period of 19 months, 297 patients who were monitored with AlloMap and 305 patients who underwent routine biopsies had similar 2-year cumulative rates of events (14.5% and 15.3%, respectively; hazard ratio with gene-expression profiling, 1.04; 95% confidence interval, 0.67 to 1.68).

This Outcomes AlloMap Registry (OAR) study is designed to collect similar clinical outcomes information as studied in IMAGE, in a larger cohort of patients (approximately 2000) followed for up to 5 years. At each routine clinic visit, key clinical features such as rejection surveillance management schedules, testing results (e.g. blood levels of immunosuppressive agents), and AlloMap scores will be collected. This larger and longer term follow-up dataset is intended to enable further elucidation, through analyses techniques such as multivariate Cox proportional hazards models, of the surveillance management features which may be associated or contribute to the most favorable long term outcomes of the heart recipients.


Ages Eligible for Study:   15 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Heart transplant patients

Inclusion Criteria:

  • New and existing heart transplant recipients ≥ 2 months (≥ 55 days) post-transplant receiving post-transplant care at the enrolling centers for interim surveillance monitoring that includes AlloMap testing
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01833195

Contact: Preethi Prasad 415-287-2558

United States, Pennsylvania
Allegheny General Hospital Recruiting
Pittsburgh, Pennsylvania, United States, 15212
Principal Investigator: Manreet Kanwar, MD         
United States, Wisconsin
Aurora St. Luke's Medical Center Recruiting
Milwaukee, Wisconsin, United States, 53215
Principal Investigator: Nasir Sulemanjee, MD         
Sponsors and Collaborators
Study Director: James P Yee, MD, PhD XDx, Inc., Brisbane, CA