Cardiopulmonary Stress Testing (CPET) AlloSure Study

Description

1. Cell-free DNA does not vary significantly as a function of the activity of immunologically quiescent cardiac transplant recipients, despite the metabolic demands of the transplanted organ. (The implication of the null result would be that no restrictions to patient activity, nor modification of cardiac rehabilitation prescription, would be necessary to maintain proper test characteristics of AlloSure testing). 2. In immunologically active cardiac transplant allografts, exercise prior to assay of donor-derived cell-free DNA can be used to increase the sensitivity of the AlloSure test. (The implication of this would be that the optimal time-frame for drawing an Allosure may actually be post-exercise, and that window will be characterized).

Conditions

Heart Failure, Transplant; Failure, Heart

Study Overview

Study Details

Study overview

1. Cell-free DNA does not vary significantly as a function of the activity of immunologically quiescent cardiac transplant recipients, despite the metabolic demands of the transplanted organ. (The implication of the null result would be that no restrictions to patient activity, nor modification of cardiac rehabilitation prescription, would be necessary to maintain proper test characteristics of AlloSure testing). 2. In immunologically active cardiac transplant allografts, exercise prior to assay of donor-derived cell-free DNA can be used to increase the sensitivity of the AlloSure test. (The implication of this would be that the optimal time-frame for drawing an Allosure may actually be post-exercise, and that window will be characterized).

AlloSure Test Characteristics in Immunologically Quiescent and Immunologically Active Heart Transplant Recipients: Does Maximal Cardiopulmonary Stress Testing Prior to Assay Preserve Test Specificity While Enhancing Sensitivity?

Cardiopulmonary Stress Testing (CPET) AlloSure Study

Condition
Heart Failure
Intervention / Treatment

-

Contacts and Locations

Dallas

Baylor Scott & White health research institute, Dallas, Texas, United States, 75246

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • 1. orthopedic, neurologic and/or any other limitations that do not allow for exercise testing on a treadmill or cycle ergometer;
  • 2. individuals who require supplemental oxygen or have current permanent tracheostomies will be excluded from this study;
  • 3. individuals who are discharged to a long-term acute care facility;
  • 4. skilled nursing facility or with palliative care or hospice care will be excluded; (e) inmates and pregnant women;

Ages Eligible for Study

18 Years to

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

No

Collaborators and Investigators

Baylor Research Institute,

Robert Gottlieb, MD, PRINCIPAL_INVESTIGATOR, BSWRI

Study Record Dates

2023-12