Molecular Imaging of the Underlying Mechanism of Cardiotoxicity in Patients With Light Chain Amyloidosis Using PET/CT

  • STATUS
    Recruiting
  • End date
    Oct 1, 2024
  • participants needed
    20
  • sponsor
    University of Pennsylvania
Updated on 17 February 2022
stenosis
hypertension
heart failure
systemic therapy
computed tomography
nt-probnp
amyloidosis
aortic stenosis
molecular imaging

Summary

The research study is being conducted to test how two different types of Positron Emission Tomography (PET/CT) scans could be used to image a type of heart disorder called amyloidosis (AL). There will be two groups in the study. One group will have PET/CT scans using an imaging drug called 18F-NOS and the other group will have PET/CT scans using a drug called Florbetaben. subject will be assigned to one of the groups when she/he agrees to be in the study.

Details
Condition Cardiac Amyloidosis
Treatment Florbetaben, FNOS
Clinical Study IdentifierNCT04105634
SponsorUniversity of Pennsylvania
Last Modified on17 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Participants will be at least 18 years of age
Have an established diagnosis of AL amyloidosis based on standard criteria and planning to start systemic therapy
Have cardiac involvement as defined by all of the following
Past documented or presently noted clinical signs and symptoms supportive of a diagnosis of heart failure in the setting of a confirmed diagnosis of AL amyloidosis in the absence of an alternative explanation for heart failure
Either an endomyocardial biopsy demonstrating AL amyloidosis or an echocardiogram demonstrating a mean left ventricular wall thickness at diastole >12mm in the absence of other causes (e.g. severe hypertension, aortic stenosis), which would adequately explain the degree of wall thickening
NT-proBNP 650 pg/mL
Participants should fall into 1 of the following 2 categories
Treatment-nave or have completed no more than 1 cycle of initial therapy, OR
Relapsed after 1 or more prior therapies, and at least 6 months from last treatment
Have serum free light chain (FLC) differential (defined as amyloid-forming FLC minus non-amyloid-forming FLC) 50 mg/L
Participants must be informed of the investigational nature of this study and be willing to provide written informed consent and participate in this study in accordance with institutional and federal guidelines prior to study-specific procedures

Exclusion Criteria

Females who are pregnant or breast feeding at the time of the PET/CT scan will not be eligible for this study; a urine pregnancy test will be performed in women of child-bearing potential before the injection of radiotracer
Inability to tolerate imaging procedures in the opinion of an investigator or treating physician
Any current medical condition, illness, or disorder as assessed by medical record review and/or self-reported that is considered by a physician investigator to be a condition that could compromise participant safety or successful participation in the study
Less than 6 months life expectancy as deemed by a treating physician
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