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Study for the evaluation of the diagnostic use of the tracer PET (18F) -Flutemetamol in patients with cardiac amyloidosis

Prospective, monocentric, exploratory phase II study for the evaluation of the diagnostic use of the tracer PET (18F) -Flutemetamol (Vizamyl®) in patients with cardiac amyloidosis - pulsar

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2022-000686-40-IT
Enrollment
45
Registered
2023-08-21
Start date
2023-05-04
Completion date
Unknown
Last updated
2025-02-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

cardiac amyloidosis MedDRA version: 20.0 Level: PT Classification code 10007509 Term: Cardiac amyloidosis System Organ Class: 10007541 - Cardiac disorders

Interventions

Trade Name: VIZAMYL - 400 MBQ/ML - SOLUZIONE INIETTABILE - USO ENDOVENOSO - FLACONCINO (VETRO) - 1-15 ML - 1 FLACONCINO Product Name: Vizamyl 400MBQ/ML - Soluzione iniettabile Product Code: [Vizamyl 4

Sponsors

FONDAZIONE TOSCANA GABRIELE MONASTERIO
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients with cardiac amyloidosis: male and female, age greater or equal 18 years diagnosed with cardiac amyloidosis. In accordance with the recommendations of the European Society of Cardiology, all of the following conditions must be present: - clinical suspicion of disease based on one or more of the following exams: cardiac examination, biomarker assay (NT-proBNP, HS-TnT, plasma protein electrophoresis, serum and urinary immunofixation, free light chains), baseline EKG, baseline echocardiography, cardiac magnetic resonance; - clearly positive osteophilic radiopharmaceutical scintigraphy (Perugini 2-3) in the absence of serum and/or urinary monoclonal component OR abdominal fat biopsy and/or endomyocardial biopsy showing ATTR or AL amyloidosis; - genetic characterization to identify patients with ATTRv; - ability to provide consent to the study. Control subjects: male and female, age greater or equal 18 years diagnosed with not-infiltrative left ventricular hypertrophy; ability to consent to the study. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 30 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 15

Exclusion criteria

Exclusion criteria: pregnancy confirmed by plasma beta-HCG on women with childbearing potential and sexually active not employing highly effective contraceptive methods with a low dependency on the user (from the screening to the end of visit 1), which include: i. abstinence, ii. sexual intercourse only with same-sex partners, iii. monogamous relationship with a partner with prior vasectomy, iv. intrauterine device, v. combined hormonal contraception including estrogens and progesteron-like hormones plus the inhibition of ovulation (oral, intravaginal or transdermal), vi. hormonal contraception based on progesterone-like compounds plus the inhibition of ovulation (oral, injectable, implantable), viii. intrauterine device with hormone release. The highly effective contraceptive measures above are not required for women made sterile by surgical means (for example through tube ligation, hysterectomy, bilateral salpingectomy, bilateral ovariectomy) or after the menopause, defined as 12 months of spontaneous amenorrhea without another clinical cause and with elevated FSH levels in agreement with the expected values for the menopause. For patients with true abstinence or with just same-sex partners, contraception is not required, as far as this is in line with their preferred and habitual lifestyle. Periodical abstinence (for example, estimate of the timing of ovulation or assessment of body temperature) and coitus interruptus are not acceptable contraceptive methods. If a patient stops to be abstinent, she must use the highly effective contraceptive methods above. The pregnancy status in women potentially fertile will be checked at baseline through the measurement of beta human gonadotropin on the serum; breastfeeding; known ischemic heart disease; hypersensitivity to the active substance or to any of the excipients listed in the chapter 6.1 of the simplified IMPD; severe hepatic insufficiency [alteration in the presence of known chronic liver disease of AST (male normal range> 34 IU / L; female 1,2 mg/dl)]; severe renal insufficiency [GFR estimated from creatinine and BUN <30 mL/ min/1.73 m2]; PET/CT or scintigraphic examination 24 hours prior to enrolment; participation in a clinical study with an investigational drug administered within 30 days before the screening or 5 half-lives of the study drug, whichever the longest.

Design outcomes

Primary

MeasureTime frame
Main Objective: Establish the affinity of the tracer [18F] -Flutemetamol for cardiac amyloid deposits in patients with cardiac amyloidosis ATTRwt, ATTRv and AL.;Secondary Objective: 1. Compare the kinetics and the extent of radiopharmaceutical cardiac uptake among patients diagnosed with ATTR and AL and control subjects with non-infiltrative left ventricular hypertrophy; 2. Check for any correlation between the radiopharmaceutical uptake entity and the type of TTR mutation; 3. Evaluate the diagnostic performance of the radiopharmaceutical in the subgroup of patients with reduced or absent cardiac uptake of the osteophilic radiopharmaceutical assessed by scintigraphy (Perugini score: 0 - 1); 4. Evaluate the potential use of the tracer [18F] -Flutemetamol for the detection of extra cerebral and extra cardiac amyloid deposits.;Primary end point(s): Quantification by PET parameters of myocardial uptake of the tracer in patients with cardiac amyloidosis ATTRwt, ATTRv and AL.;Timepoint(s) of evaluation of this end point: at visit 1 (the endpoint evaluation is concomitant with the PET examination)

Secondary

MeasureTime frame
Secondary end point(s): Quantification of myocardial uptake of the tracer in patients with ATTRv, in patients with ATTRwt, in patients with AL and in control subjects;; Quantification of myocardial uptake of the tracer in patients with ATTRv, in patients with ATTRwt, in patients with AL and in control subjects;; Quantitative differentiation of myocardial tracer uptake in patients with different ATTRv genotypes;; Quantification of myocardial uptake of the tracer in patients with ATTR and weakly positive or negative scintigraphy (Perugini 0–1);; Identification and quantification of any areas of systemic uptake of the radiopharmaceutical referred to the presence of amyloid deposits (systemic amyloidosis);Timepoint(s) of evaluation of this end point: at visit 1 (the endpoint evaluation is concomitant with the PET examination);; at visit 1 (the endpoint evaluation is concomitant with the PET examination);; at visit 1 (the endpoint evaluation is concomitant with the PET examination);; at visit 1 (the endpoint evaluation is concomitant with the PET examination);; at visit 1 (the endpoint evaluation is concomitant with the PET examination)

Countries

Italy

Contacts

Public ContactUOC Farmacia Ospedaliera

Fondazione Toscana 'Gabriele Monasterio'

farmicisti@ftgm.it0585493508

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026