Efficacy of [18F]Florbetaben PET for Diagnosis of Cardiac AL Amyloidosis

Inclusion Criteria:

Males and females age ≥18 years
Able to understand, sign and date written informed consent
Written informed consent must be obtained before any assessment is performed
Subjects being considered for a possible diagnosis of cardiac amyloidosis by

1. One of the following conditions:

Established systemic amyloidosis without proven cardiac involvement,
Known plasma cell dyscrasia (MGUS, multiple myeloma),
Pathological free light chain levels in urine or serum,
Presence of heart failure with preserved ejection fraction

2. AND one of the following parameters, indicative of cardiac manifestation:

Mean (left ventricular (LV) wall + septum) thickness >12mm as measured by echocardiography in absence of other known cause of left ventricular hypertrophy (LVH),
NT-proBNP >335 ng/L
Planned diagnostic procedure to establish diagnosis and cardiac involvement (e.g., endomyocardial biopsy or extracardiac biopsy in conjunction with cardiac magnetic resonance imaging/echocardiography or bone scintigraphy)
Female subjects must be documented by medical records or physician's note to be either surgically sterile (by means of hysterectomy, bilateral salpingectomy, or bilateral oophorectomy) or post-menopausal for at least 1 year (no menses for 12 months without an alternative medical cause). If they are of child-bearing potential, they must commit to use of a highly effective contraceptive measure for at least one week following the PET scan
Male subjects and their partners of childbearing potential must commit to the use of a highly effective method of contraception for a minimum of 90 days following the PET scan
Male subjects must commit to not donate sperm for a minimum of 90 days after the PET scan

Exclusion Criteria:

Any known allergic reactions or hypersensitivity towards any compound of the study drug
Severe hepatic impairment (AST/ALT >5 x ULN; bilirubin >3 x ULN)
Inability to lay flat for up to 60 min
Pregnant, lactating or breastfeeding
Unwilling and/or unable to cooperate with study procedures
Having been administered a radiopharmaceutical within 10 radioactive half-lives prior to study drug administration in this study