Association of Insulin Resistance and FGF21 on Cardiac Function in Pediatric Dilated Cardiomyopathy

December 6, 2021 updated by: Daniel Mak, MD, Le Bonheur Children's Hospital
This study will investigate whether there is an association between insulin resistance and cardiac function in children with dilated or hypertrophic cardiomyopathy. This study will also investigate whether there is an association between FGF21 and cardiac function in children with dilated or hypertrophic cardiomyopathy and whether this is mediated through greater insulin resistance and/or through independent effects.

Study Overview

Detailed Description

Although pediatric cardiomyopathy is rare, the condition is severe and life-threatening. The main focus of this proposed study will examine whether insulin resistance is correlated with decreased cardiac function which will hopefully pave the way for future clinical trials using medications that sensitize insulin such as metformin or glucagon-like peptide-1 (GLP-1 agonists) as possible therapeutic agents. The exploratory piece of this study will investigate a novel therapeutic target by determining whether FGF21 has any direct effects on cardiac function and whether it interacts with insulin resistance in altering cardiac function. Patients with cardiomyopathy normally undergo ECHO as part of routine evaluation and follow up and is standard of care. At this time, there are no official guidelines for pediatric patients with cardiomyopathy to undergo oral glucose tolerance testing (OGTT) and thus it is not part of the standard of care. Based on findings from this study, the investigators hope to justify performing an OGTT on pediatric patients with dilated or hypertrophic cardiomyopathy and incorporate the procedure in future practice guidelines.

Study Type

Interventional

Enrollment (Actual)

9

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Tennessee
      • Memphis, Tennessee, United States, 38103
        • Le Bonheur Children's Hospital

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.

Eligibility Criteria

Ages Eligible for Study

13 years to 18 years (Child, Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of dilated or hypertrophic cardiomyopathy
  • Pubertal (Tanner 2 breast in females or testicular volume ≥ 4mL in males)
  • Permission by the primary cardiologist of the patient for enrollment in the study

Exclusion Criteria:

  • Prior diagnosis of diabetes and treatment with anti-diabetes medication
  • Neuromuscular disorder
  • Inborn error of metabolism
  • Malformation syndrome
  • Clinically unstable based on the assessment of the primary cardiologist caring for the patient
  • inability of parent/legal guardian to provide informed consent
  • non-English speaking

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Screening
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: cardiomyopathy
only one arm, all participants undergo oral glucose tolerance testing and results are used to evaluate association with degree of cardiac dysfunction
measure insulin, glucose and FGF21 levels in response to oral glucose challenge

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Whole body insulin sensitivity index
Time Frame: baseline
correlate whole body insulin sensitivity index with left ventricular ejection fraction
baseline

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
FGF21 level
Time Frame: baseline
correlate FGF21 levels with whole body sensitivity index and left ventricular ejection fraction
baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Daniel Mak, MD, Le Bonheur/UTHSC Pediatric Endocrine fellowship

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 7, 2019

Primary Completion (Actual)

June 30, 2021

Study Completion (Actual)

June 30, 2021

Study Registration Dates

First Submitted

December 19, 2019

First Submitted That Met QC Criteria

January 6, 2020

First Posted (Actual)

January 9, 2020

Study Record Updates

Last Update Posted (Actual)

December 20, 2021

Last Update Submitted That Met QC Criteria

December 6, 2021

Last Verified

December 1, 2021

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

This is a single center, pilot study; data will not be made available but findings from the study will be published

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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