ClinicalTrials.gg
Active, not recruitingNCT03263312Updated Sep 5, 2021

Multimodality Biomarkers for Noninvasive Assessment of the Fontan Patient

An interventional study of Exercise in Single-ventricle and Myocardial Fibrosis, sponsored by Maria Bano. Active, not recruiting at 1 site in United States. Open to participants aged 10 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-09-05.

Sponsored by Maria Bano · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2025, 1 year 5 months ago, but the record still lists the study as active, not recruiting.

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Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Not applicable
Ages
10 Years to 40 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 55 studies in Univentricular Heart with a site in United States — 13 open to participants now, 16 under way, none of them phase 3. Univentricular Heart · United States.

Planned enrollment
9th of 32
50 · median 24
Started
2018
with 4 others
No phase
17 of 55
6 open now
Primary completion
2025-06
later than 1 of 15 live
Registered
27th of 55
by date

Among the 55 studies in Univentricular Heart with a site in United States, this one is the 9th largest by planned enrollment of the 32 interventional ones that give a count, is one of 5 that started in 2018, is one of 17 with no phase, reaches primary completion later than 1 of the 15 other live ones, and was the 27th registered.

Univentricular Heart

86 studies on the registry are indexed under Univentricular Heart; 22 are open to participants now.

Browse Univentricular Heart studies →

Open to participants now

13 of the 55 studies in Univentricular Heart with a site in United States are open now. Recruiting first, the newest first:

8 more — sign in →

All 13 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 21 Univentricular Heart studies recruiting now, 8 (38%) set no upper age limit and 13 (62%) stop at 75 or younger; 16 take children under 18; 1 takes healthy volunteers.

This study: 10 Years to 40 Years · all sexes · healthy volunteers too.

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02

Study summary

This is a single center prospective longitudinal exercise training study and will enroll approximately 50 Fontan patients and 20 controls of a similar age, gender, BMI and physical activity level between the ages of 10-40 years.

Participants will undergo an MRI of the Fontan circulation. This will include imaging of the heart, lung and liver. This will include specific imaging for tissue characterization and assessment of myocardial fibrosis, liver fibrosis and disproportionate pulmonary blood flow. The investigators will then draw blood (approximately 10 ml) for assessment of serum biomarkers and circulating microRNAs of interest. The participants will undergo exercise testing and will then start a 3-6 month long cardiac rehabilitation program. After the 3-6 month study period the participants will return back for a follow up and repeat all the testing completed at enrollement.

Read the detailed description

This is a single center prospective longitudinal study and will enroll approximately 50 Fontan patients and 20 controls of a similar age, gender, BMI and physical activity level between the ages of 10-40 years. The investigators will enroll from pediatric cardiology and heart failure clinics and inpatient care units at Children's Health Dallas, adult congenital heart disease clinics and inpatient care units at Clements University Hospital and the Clinical Heart Center. This study will evaluate the multimodality biomarkers for assessment of Fontan circulation including heart, liver and lung and change in these markers with exercise training.

Participants will receive an MRI of the Fontan circulation. This will include imaging of the heart, lung and liver. A blood draw (approximately 10 ml) for assessment of serum biomarkers and circulating microRNAs of interest will be completed. The participants will also complete exercise testing and will then start a 3-6 month long cardiac rehabilitation program. Frequent phone follow up (conducted by the research staff) and regular download of data from heart rate monitors will ensure adherence.

After the 3-6 month study period the participants will return for a follow up and repeat all testing completed at enrollment.

03

Conditions studied

  • Single-ventricle
  • Myocardial Fibrosis

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Keywords

  • myocardial fibrosis
  • exercise training
  • Fontan
04

Who can participate

Ages eligible
10 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Presence of a congenital heart defect that leads to single ventricle physiology
  • Previously performed TCPA surgery
  • Current age 10 years to 40 years

Exclusion criteria

Exclusion Criteria:

  • History of exercise intolerance (peak VO2\<12ml/kg/min)
  • Unstable arrhythmia at the time of screening
  • Listed or being evaluated for heart transplantation
  • Pregnancy or breast feeding
  • Patient with pacemaker, AV block other than 1st degree block, sick sinus syndrome or other arrhythmia that may influence ability to perform exercise test or magnetic resonance imaging
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
50 participants (estimated)

Study arms

  • Experimental
    Fontan Patients

    All Fontan patients included in this study will be part of an exercise intervention 2-6 times/week for 3-6 months.

    Behavioral: Exercise

Interventions

  • BehavioralExercise

    Exercise training all patients enrolled.

    Also known as: Training

06

What researchers measure

Primary outcomes

  1. Peak VO2

    Improvement in Peak VO2 with 6 months of exercise training

    Time frame: 6 months

07

Study locations

1 site
  • Children'sMCD
    Irving, Texas 75063, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2018 (actual). Primary completion is estimated for Jun 2025, 89 months after the start.

Of 20 interventional studies with no phase under Univentricular Heart, half reached primary completion within 44 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 63. This study's planned 89 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 24, 2017
First posted
Aug 28, 2017
StartActual
Jan 1, 2018
Primary completionEst.
Jun 2025
CompletionEst.
Jun 2025
Last update
Sep 5, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 5, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03263312
Lead sponsor
Maria Bano
Responsible party
Maria Bano (Assistant Professor, Children's Medical Center Dallas) — Sponsor-investigator
First posted
Aug 28, 2017
Start date
Jan 1, 2018
Primary completion
Jun 2025 (estimated)
Completion
Jun 2025 (estimated)
Last update
Sep 5, 2021

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Sep 2021. You cannot join it, but the record below documents what was studied.

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