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Orthotopic Heart TransplantPhase 3CFR-OHTNCT03231371

Coronary Artery Vasculopathy in Pediatric Heart Transplant Patients

A Phase 3 study testing Adenosine in people with Orthotopic Heart Transplant, run by Bryan Goldstein at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Heart transplantation is a life-sustaining therapy that allows patients with either congenital or acquired heart disease and severe cardiac dysfunction to survive. Over time, however, the transplanted heart can develop problems. Read more about this study

Who is it for?
Ages 1 year to 25 years
Conditions the study is for
Orthotopic Heart Transplant
What is being tested?
Adenosine
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
1 siteUnited States
Study dates
Nov 2008to Jan 2011
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 1 year to 25 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Patients age 1 - 25 years who are status-post OHT (≤18 years at the time of transplantation) and undergoing routine post-transplant surveillance catheterization for endomyocardial biopsy and coronary angiography

Who cannot join

  • The presence of sick sinus syndrome or 2nd or 3rd degree atrioventricular block (without a functioning implanted pacemaker)
  • Hemodynamically significant valvular disease
  • Severe asthma or bronchospasm, known severe CAV
  • Pulmonary hypertension.
  • Patients taking digoxin
  • Verapamil and dipyridamole are also excluded given known interactions with adenosine.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of MIchigan-Congenital Heart Center

    Ann Arbor, Michigan, 48109

Other trials in United States

About this study

Official title: Early Detection of Coronary Artery Vasculopathy in Pediatric Heart Transplant Patients: A Prospective Assessment Using Coronary Flow Reserve and Contrast-Enhanced Cardiac MRI

Heart transplantation is a life-sustaining therapy that allows patients with either congenital or acquired heart disease and severe cardiac dysfunction to survive. Over time, however, the transplanted heart can develop problems. One of the more common and troubling problems is the development of stenoses, or narrowings, within the coronary arteries. These narrowings, technically referred to as coronary artery vasculopathy (CAV for short), account for the single most common cause of death or need for repeat heart transplant in persons more than one year post-transplant. Traditionally, CAV has been diagnosed at cardiac catheterization using coronary angiography (where dye is directly injected into the coronary blood vessels and viewed using special x-ray equipment called fluoroscopy). There is no good treatment for CAV aside from treatment of symptoms and listing for repeat heart transplantation. The goal of this study is to test several newer methods of diagnosing CAV. The first is called coronary flow reserve (catheterization test). The second is called Endo-PAT (a finger probe test) and the third is called contrast-enhanced cardiac MRI (MRI test, only for patients 12 and older). The older method (coronary angiography) will still be used in all cases, in addition to the new tests The goal is, one day, to be able to diagnose patients with CAV earlier in the course, prior to a patient's development of abnormal angiograms. If this can be done, it is possible that better therapies will be able to be used to stop or even reverse the development of CAV, perhaps reducing, or at least delaying, the need for repeat heart transplantation.

Being tested
Adenosine
Keywords
Orthotopic Heart Transplant

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AdenosineDrug

    Administration of intravenous adenosine infusion over 3 minutes (0.14 ml/kg, 3mg/ml concentration, total dose).

Study groups in NCT03231371
Study groupRoleWhat they receive
Study ArmExperimentalNot described
Receives: Drug: Adenosine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Coronary Flow Reserve (CFR)

    Ratio of peak to baseline coronary flow velocity (CFV)

    Measured: Baseline testing (acute only), 3 minutes of adenosine infusion

Secondary outcomes (1)
  1. Gadolinium Enhancement by Cardiac MRI

    Categorical measure - yes or no; number of participants with gadolinium enhancement

    Measured: Baseline MRI only

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jul 2017
  2. Study startNov 2008
  3. Primary completionJan 2011
  4. Study completionJan 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03231371
Sponsor's protocol ID
HUM23585
Acronym
CFR-OHT
Status last verified
Aug 2017
First submitted
19 Oct 2011
Last updated
26 Sep 2017
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Adenosine in people with Orthotopic Heart Transplant, run by Bryan Goldstein at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Sep 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 26 Sep 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Coronary Flow Reserve (CFR) (time frame: Baseline testing (acute only), 3 minutes of adenosine infusion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Sep 2017.

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