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NOT YET RECRUITING
NCT06965621
PHASE2

18F-mFBG Imaging for Myocardial Sympathetic Innervation

Sponsor: Innervate Radiopharmaceuticals LLC (Formerly: Illumina Radiopharmaceuticals LLC)

View on ClinicalTrials.gov

Summary

This is a Phase 2 study evaluating the positron-emitting radiopharmaceutical 18F-mFBG as an imaging agent for quantification of myocardial sympathetic innervation. The study will examine a group of stable patients with heart failure (HF) from ischemic cardiomyopathy. All subjects will have left ventricular ejection fraction (LVEF) ≤35% and implantable cardioverter-defibrillators (ICD). The primary objectives of the study will be to: * document the degree to which 18F-mFBG uptake in the heart is reduced (compared to historical controls) * characterize the distribution of regional abnormalities in relation to findings on rest/stress positron-emission tomography (PET) myocardial perfusion imaging (MPI) * determine if there are global and/or regional differences in myocardial sympathetic innervation between subjects who have and have not experienced an appropriate ICD activation within the previous 12 months Effectiveness of 18F-mFBG will be judged in relation to historical experience with other nuclear imaging agents for cardiac sympathetic innervation imaging such as a 123I-meta-iodobenzylguanidine (mIBG) and 11C-hydroxyephedrine (HED). Safety data will be collected to identify adverse events \[AEs\] and serious adverse events \[SAEs\] and characterize the safety profile of 18F-mFBG.

Official title: An Open-Label, Exploratory, Phase 2 Scintigraphy Study Evaluating 18F mFBG for Imaging Myocardial Sympathetic Innervation in Subjects With Heart Failure and Implantable Cardioverter-Defibrillators

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

INTERVENTIONAL

Enrollment

20

Start Date

2026-04-28

Completion Date

2026-12-30

Last Updated

2026-03-27

Healthy Volunteers

No

Interventions

DRUG

18F-metaFluorobenzylguanidine

PET Radiopharmaceutical to assess myocardial sympathetic innervation

DRUG

Rubidium-82

PET Radiopharmaceutical to assess myocardial perfusion

Locations (1)

UT Health Houston

Houston, Texas, United States