Partial Heart Transplantation

Sponsor
Duke University (Other)
Overall Status
Not yet recruiting
CT.gov ID
NCT06055556
Collaborator
(none)
15
1
87.5

Study Details

Study Description

Brief Summary

The purpose of this study is to determine if a partial heart transplantation in patients with congenital heart disease is safe and feasible. Participants will have a partial heart transplant involving surgical replacement of the pulmonary valve with the heart valve and supporting blood vessels from an organ donor. The procedure, tests, medications, and follow-up visits will all be done per standard of care. Medical data will be collected to look at outcomes after surgery.

Condition or Disease Intervention/Treatment Phase
  • Procedure: Partial Heart Transplantation
  • Other: Freshly procured valve
N/A

Detailed Description

The purpose of this study is to determine if a partial heart transplantation in patients with congenital heart disease is safe and feasible. Potential participants are patients 12 and younger with congenital heart defects in need of pulmonary valve replacement.Participants will have a partial heart transplant involving surgical replacement of the pulmonary valve with the heart valve and supporting blood vessels from an organ donor. The study procedure, tests, medications, and follow-up visits will all be done per standard of care for heart transplant patients. Data will be collected from chart review, before, during and after surgery and at standard of care follow-up visits. Study data will be compared to historical data of patients who have undergone other types of pulmonary valve replacement surgery.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
15 participants
Allocation:
N/A
Intervention Model:
Single Group Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Partial Heart Transplantation for Severe Pediatric Semilunar Valve Dysfunction
Anticipated Study Start Date :
Sep 15, 2023
Anticipated Primary Completion Date :
Dec 30, 2026
Anticipated Study Completion Date :
Dec 30, 2030

Arms and Interventions

Arm Intervention/Treatment
Experimental: Partial Heart Transplantation

Participants will receive a partial heart transplantation to replace the pulmonary valve with fresh donor graft(s). This is an investigational procedure. This means this procedure is not done as a routine treatment for patients with congenital heart defects. Partial heart transplantation involves surgical replacement of the semilunar heart valve with the heart valve and supporting blood vessels and tissue from an organ donor. No other parts of the heart are transplanted besides the heart valve, blood vessel, and tissue surrounding the valve.

Procedure: Partial Heart Transplantation
Partial heart transplantation involves surgical replacement of the semilunar heart valve with a fresh donor graft. The surgical procedure (homograft valve replacement) is common and standard of care. The investigational aspect of this is using a freshly procured valve rather than a cryopreserved, cadaveric one and also the use of limited immunosuppression to help maintain the freshly procured valve as "living tissue".

Other: Freshly procured valve
Fresh donor graft semilunar heart valve.

Outcome Measures

Primary Outcome Measures

  1. Number of eligible patients who can be matched for transplant and the tissues needed procured [Day 1]

    A measure of feasibility.

  2. To assess valve growth following partial heart transplantation. [Year 2]

    This will be determined by looking at valve growth compared to body growth over time based on post-operative imaging.

Secondary Outcome Measures

  1. To determine whether valve replacement(s) using partial heart transplantation is safe. [Year 2]

    This will be determined by survival and major complication rates.

  2. To assess valve function following partial heart transplantation. [Year 2]

    This will be determined by looking for the development of valve stenosis over time based on post-operative imaging.

Eligibility Criteria

Criteria

Ages Eligible for Study:
N/A to 12 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Congenital heart patient referred for a cardiac operation that involves valve replacement in pulmonary position

  • Deemed acceptable for partial heart transplantation based on the standard evaluation process

Exclusion Criteria:
  • Contraindication for heart transplantation

  • Severe bliateral long segment pulmonary arterial hypoplasia

  • Bilateral pulmonary vein stenosis

  • Persistent acidosis with a pH < 7.1

  • Failure to pass psychosocial evaluation

  • Parental (custodial) alcohol and/or substance abuse

  • Documented parental (custodial) child abuse or neglect

  • Parent (custodian) with cognitive/psychiatric impairment severe enough to limit comprehension of medical regimen

  • Infection disease exclusion criteria

  • Evidence of active sepsis

  • Hepatitis B surface antigenemia

  • HIV positivity

  • Pregnancy

  • Financial hardship or insurance non-approval

Contacts and Locations

Locations

No locations specified.

Sponsors and Collaborators

  • Duke University

Investigators

  • Principal Investigator: Joseph Turek, MD, PhD, MBA, Duke Health

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Duke University
ClinicalTrials.gov Identifier:
NCT06055556
Other Study ID Numbers:
  • Pro00110600
First Posted:
Sep 26, 2023
Last Update Posted:
Sep 26, 2023
Last Verified:
Sep 1, 2023
Individual Participant Data (IPD) Sharing Statement:
Undecided
Plan to Share IPD:
Undecided
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Additional relevant MeSH terms:

Study Results

No Results Posted as of Sep 26, 2023