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Single VentricleNCT02498444

Perioperative Treprostinil in Pediatric Patients Undergoing the Fontan Operation

A study testing Treprostinil in people with Single Ventricle, run by Stanford University at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to test the efficacy of treprostinil (TRE) in the perioperative non-fenestrated, extracardiac Fontan patients in order to reduce duration of chest tube drainage (in days). Read more about this study

Who is it for?
Ages 1 year to 18 years
Conditions the study is for
Single Ventricle
What is being tested?
Treprostinil
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
34 participants
Where
1 siteUnited States
Study dates
Sep 2015to Dec 2020
Phase
Interventional
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 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Pediatric patient undergoing Fontan operation and/or pre-Fontan cardiac catheterization at Lucile Packard Children's Hospital (LPCH)

Who cannot join

  • Platelet count < 50K (treprostinil can act as a platelet inhibitor and this may place patient at additional risk of bleeding if already thrombocytopenic)
  • Dermatologic condition that renders the patient unable to tolerate a subcutaneous infusion (can still take part in inhaled vasodilator testing during cardiac catheterization)
  • Currently receiving any vasodilator therapy specifically for the purpose of pulmonary vasodilation (phosphodiesterase type 5 inhibitor, endothelia receptor antagonist and/or prostacyclin).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Lucile Packard Children's Hospital, Stanford

    Palo Alto, California, 94304

Other trials in United States

About this study

The purpose of this study is to test the efficacy of treprostinil (TRE) in the perioperative non-fenestrated, extracardiac Fontan patients in order to reduce duration of chest tube drainage (in days).

The Fontan operation is performed for patients with single ventricle physiology as the final palliation to create a series circulation, with passive systemic venous return to the pulmonary arteries and the single ventricle solely providing systemic output.

Read more

Patients undergoing extracardiac Fontan tend to have elevation of Fontan pressures immediately following the operation with inflammation from surgery requiring additional fluid administration to maintain blood pressure. Increased Fontan pressures and fluid overload lead to prolonged chest tube drainage.

The hypothesis is that treprostinil, a prostacyclin drug that dilates the pulmonary arteries, will improve immediate postoperative Fontan pressures. Treprostinil is not FDA approved for this use. Anecdotally and in a small case series, prostacyclin therapy has been shown to assist in transitioning patients off nitric oxide. The investigators believe that this improvement in hemodynamics will decrease duration of chest tube drainage resulting in a shorter length of hospital stay.

Read the detailed description

In order to understand the effect of treprostinil on Fontan patients, this study has two parts:

  1. reactivity testing with inhaled treprostinil in the cardiac catheterization lab for pre-Fontan patients undergoing routine catheterization in anticipation of the Fontan operation;
  2. perioperative use of subcutaneous treprostinil starting immediately pre-op until postoperative day #7 to improve immediate postoperative hemodynamics and ultimately reduce overall length of hospital stay.

The investigators hope to learn how pulmonary vasodilator therapy affects and/or improves post- operative hemodynamics following the Fontan operation. This knowledge would be very important in the care of single ventricle patients following the Fontan operation if there is improvement of immediate outcomes and reduction of hospital length of stay. On a broader scale, if the use of treprostinil in perioperative Fontan patients can achieve the same results other centers achieve with the use of a fenestration this may have wide scale implications in the nationwide treatment of Fontan patients.

Being tested
Treprostinil
Keywords
Fontan, Treprostinil, Remodulin, Single ventricle
Medical subject headings
Univentricular Heart

What participants receive

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

  • TreprostinilDrug

    Also called Remodulin

    Administration of drug (treprostinil) vs placebo (saline) in the post-operative period

Study groups in NCT02498444
Study groupRoleWhat they receive
TreprostinilExperimentalThe subcutaneous continuous treprostinil infusion will start at a dose of 2 ng/kg/min. The dose will be increased over the first 24 hours to goal 10 ng/kg/min through day five. On postoperative day six, the dose will be decreased by 2 ng/kg/min every 8 hours with plans for discontinuation on postoperative day seven.
Receives: Drug: Treprostinil
SalinePlacebo comparatorSaline administration via subcutaneous infusion
Receives: Drug: Treprostinil

What is being measured

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

  1. Chest Tube Duration

    This outcome measures the number of days that chest tubes were in place postoperatively.

    Measured: 2-3 wks

Secondary outcomes (4)
  1. Length of Hospital Stay

    This outcome measures the hospital length of stays in days.

    Measured: 2-3 wks

  2. Postoperative Fontan Pressure

    Patient hemodynamics as measured by invasive postoperative lines were recorded and compared between groups

    Measured: postoperative hour 0, 12 and 24

  3. Postoperative Atrial Pressure

    Patient hemodynamics as measured by invasive postoperative lines were recorded and compared between groups

    Measured: postoperative hour 0, 12 and 24

  4. Postoperative Transpulmonary Gradient

    Patient hemodynamics as measured by invasive postoperative lines were recorded and compared between groups. Transpulmonary pressure gradient is defined as the difference between mean pulmonary artery pressure and left atrial pressure (commonly estimated by a pulmonary artery wedge pressure).

    Measured: postoperative hour 0, 12 and 24

Timeline

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

  1. First posted15 Jul 2015 (estimated)
  2. Study startSep 2015
  3. Primary completionDec 2020
  4. Study completionDec 2020

Why it stopped: Interim futility analysis

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
34 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02498444
Sponsor's protocol ID
33852
Status last verified
Mar 2022
First submitted
13 Jul 2015
Last updated
31 Mar 2022
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Handler SS, Ogawa MT, Hopper RK, Sakarovitch C, Feinstein JA. Subcutaneous treprostinil in pediatric patients with failing single-ventricle physiology. J Heart Lung Transplant. 2017 Sep 14:S1053-2498(17)31993-9. doi: 10.1016/j.healun.2017.09.008. Online ahead of print. No abstract available.

    PubMed 29126699

Questions about this trial

What is this clinical trial studying?

A study testing Treprostinil in people with Single Ventricle, run by Stanford University 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 3 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: stopped early, as of the sponsor's last update on 31 Mar 2022. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 31 Mar 2022). 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?

Chest Tube Duration (time frame: 2-3 wks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02498444, which also lists 1 linked publication.

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 31 Mar 2022.

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