Status:

RECRUITING

FDG-PET as an Imaging Modality to Diagnose and Risk Stratify Subclinical, Imaging Negative Ici-Myocarditis

Lead Sponsor:

Mayo Clinic

Conditions:

Subclinical Immune Checkpoint Inhibitor-Induced Myocarditis

Myocarditis

Eligibility:

All Genders

18+ years

Brief Summary

The purpose of this pilot study is to evaluate Fluorodeoxyglucose - Positron Emission Tomography (FDG-PET) as an imaging modality to diagnose and risk stratify subclinical, imaging negative ICI-myocar...

Eligibility Criteria

Inclusion

  • Age ≥18 years at the time of signing informed consent
  • Any solid or hematologic malignancy undergoing treatment with ICI (either as a single agent or in combination with others)
  • Ambulatory and able to complete a 48-72 hour high fat and low carbohydrate diet with 18 hours fasting (PET diet), 18F-FDG PET/CT scanning, as well as 13N-ammonia PET-CT myocardial perfusion imaging (part of the routine protocol of the investigation). These two studies will be done as part of the same imaging set.
  • Willing to return to Mayo Clinic for ongoing follow-up
  • Left ventricular ejection fraction (LVEF) ≥45%
  • Cardiac MRI (CMR) without conclusive evidence of inflammation, coronary assessment available (either via cardiac computed tomography angiography, CCTA, or via coronary angiogram) Informed consent obtained before any trial-related activities. Trial-related activities are any procedures that are carried out as part of the trial, including activities to determine suitability for the trial.

Exclusion

  • Fulminant myocarditis requiring steroid therapy
  • CMR with definitive evidence of myocarditis
  • Clinical presentation consistent with acute coronary syndrome (wall motion abnormalities consistent with a specific coronary distribution, coronary angiogram with a culprit lesion identified, patients requiring revascularization either with percutaneous coronary interventions or coronary artery bypass grafting).
  • Patients unable to provide informed consent
  • Patients unable to complete the diet preparation protocol
  • Pregnancy (all women of child-bearing age and potential will have a negative pregnancy test within 48 hours of the PET/CT at screen and 6-month visit)
  • Breastfeeding

Key Trial Info

Start Date :

October 11 2024

Trial Type :

OBSERVATIONAL

Allocation :

ESTIMATED

End Date :

April 30 2027

Estimated Enrollment :

30 Patients enrolled

Trial Details

Trial ID

NCT06566209

Start Date

October 11 2024

End Date

April 30 2027

Last Update

October 15 2025

Active Locations (1)

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Mayo Clinic in Rochester

Rochester, Minnesota, United States, 55905