- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT07624760
Early Detection of Amyloidosis in Monoclonal Gammopathy Using Nuclear Medicine Imaging (MGUS-PET)
Early Detection of Light-Chain Amyloidosis in Monoclonal Gammopathy Using 18F-Florbetaben PET/MR: a Prospective, Single-Center, Observational Study
The goal of this clinical trial is to evaluate whether ¹⁸F-florbetaben PET/MR can detect systemic amyloid deposits early and noninvasively in patients with monoclonal gammopathy. The main question it aims to answer is: Can ¹⁸F-florbetaben PET/MR identify systemic amyloid deposits across clinically and histologically defined patient groups?
Participants will:
- Be screened for eligibility and asked to sign an informed consent form
- Have their vital signs measured
- Receive a single intravenous injection of approximately 300 MBq ¹⁸F-florbetaben (Neuraceq®), followed by whole-body PET/MR imaging from skull base to below the kidneys. If MRI is contraindicated (e.g., pacemaker, severe claustrophobia), PET/CT will be performed instead. The scan takes approximately one hour, during which participants lie still in the scanner
- Be monitored during and after the scan for any side effects or adverse events
- Complete study participation at the end of the imaging session (single visit, no follow-up required)
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Aim of the Project: The overarching goal is to establish a non-invasive, sensitive method for early detection of systemic amyloid deposits, laying the foundation for earlier diagnosis and improved treatment of AL amyloidosis.
- Primary Aim: Validate 18F-florbetaben PET for detection of systemic AL amyloidosis versus negative controls.
- Secondary Aim: Compare the sensitivity of amyloid PET with established methods (echocardiography, MRI, serological biomarkers) for the detection of early organ involvement.
- Tertiary Aim: Quantify and characterize systemic amyloid burden across early and manifest disease stages.
Hypotheses:
- Amyloid PET shows pathological tracer uptake in patients with AL amyloidosis and remains unremarkable in negative controls.
- Amyloid PET detects amyloid deposits at a stage in which conventional methods do not yet show structural or functional changes.
- Systemic amyloid burden follows a graded pattern, with intermediate values in early disease and the highest values in manifest AL amyloidosis.
Study Design and Methods Prospective, observational cohort study at the University Hospital Zurich (USZ). 50 participants will be recruited from the established COSMO-AL cohort at the Department of Hematology, which systematically captures patients with clinically significant monoclonal gammopathy and provides standardized skin biopsy data.
Participants:
- Negative controls: monoclonal gammopathy without histologic amyloid (n = 10).
- Early disease (study cohort): monoclonal gammopathy with local, histologically confirmed amyloid deposits (n = 20).
- Positive controls: biopsy-confirmed systemic AL amyloidosis (n = 20). Patients with confirmed amyloid involvement will be additionally stratified by organ involvement to allow exploratory analysis of organ-specific tracer uptake.
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Dominik C Benz, PD Dr. med.
- Telefoonnummer: +41432531191
- E-mail: dominik.benz@usz.ch
Studie Contact Back-up
- Naam: Mirjam Marty
- E-mail: mirjam.marty@usz.ch
Studie Locaties
-
-
Canton of Zurich
-
Zurich, Canton of Zurich, Zwitserland, 8091
- University Hospital Zurich
-
Contact:
- Dominik C Benz, PD Dr. med.
- Telefoonnummer: +41432531191
- E-mail: dominik.benz@usz.ch
-
Contact:
- Mirjam Marty
- E-mail: mirjam.marty@usz.ch
-
Hoofdonderzoeker:
- Dominik C Benz, PD Dr. med.
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Participation in the COSMO-AL study
- Available biopsy test result
- Written informed consent
Exclusion Criteria:
- Pregnant or lactating women
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Diagnostisch
- Toewijzing: Niet-gerandomiseerd
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Ander: Monoclonal Gammopathy, Amyloid-Negative
Patients with monoclonal gammopathy, biopsy-negative for amyloid (negative controls)
|
Single intravenous dose of ~300 MBq ¹⁸F-florbetaben followed by PET/MR (or PET/CT, if MRI is contraindicated), from the skull base to below the kidneys
Andere namen:
|
|
Ander: Monoclonal Gammopathy, Amyloid-Positive
Patients with monoclonal gammopathy, biopsy-positive for amyloid (study cohort)
|
Single intravenous dose of ~300 MBq ¹⁸F-florbetaben followed by PET/MR (or PET/CT, if MRI is contraindicated), from the skull base to below the kidneys
Andere namen:
|
|
Ander: AL Amyloidosis
Patients with biopsy-proven AL amyloidosis (positive controls, with and without cardiomyopathy)
|
Single intravenous dose of ~300 MBq ¹⁸F-florbetaben followed by PET/MR (or PET/CT, if MRI is contraindicated), from the skull base to below the kidneys
Andere namen:
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Systemic ¹⁸F-florbetaben PET positivity rate
Tijdsspanne: At time of PET/MR imaging (Day 1)
|
Rate of positive ¹⁸F-florbetaben PET scans assessed by visual qualitative analysis across the three patient groups (monoclonal gammopathy without biopsy-proven amyloid, biopsy-positive monoclonal gammopathy, biopsy-proven systemic AL).
PET positivity is defined as any tracer uptake in the myocardium or in any organ outside the liver.
Imaging performed with PET/MR or PET/CT, if MRI is contraindicated.
|
At time of PET/MR imaging (Day 1)
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Correlation of myocardial ¹⁸F-Florbetaben uptake with cardiac biomarker and MRI parameters
Tijdsspanne: At time of PET/MR imaging (Day 1)
|
Correlation of myocardial percent injected dose (%ID) with NT-proBNP (pg/mL) and cardiac MR parameters (indexed LV mass (g/m²), left ventricular ejection fraction (LVEF, %), and extracellular volume fraction (ECV, %)
|
At time of PET/MR imaging (Day 1)
|
|
Association of Myocardial ¹⁸F-Florbetaben Uptake with Histological Amyloid Status
Tijdsspanne: At time of PET/MR imaging (Day 1)
|
Association of myocardial %ID with histological amyloid status (positive vs. negative) as determined by biopsy data from the parallel COSMO-AL study cohort.
|
At time of PET/MR imaging (Day 1)
|
Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Dominik C Benz, PD Dr. med., University of Zurich
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Vaatziekten
- Hart-en vaatziekten
- Neoplasmata
- Metabole ziekten
- Ziekten van het immuunsysteem
- Neoplasmata per histologisch type
- Hematologische ziekten
- Lymfoproliferatieve aandoeningen
- Immunoproliferatieve aandoeningen
- Neoplasmata, plasmacel
- Hemostatische aandoeningen
- Bloed eiwit stoornissen
- Hemorragische aandoeningen
- Proteostase-tekortkomingen
- Hypergammaglobulinemie
- Amyloïdose
- Voedings- en stofwisselingsziekten
- Hemische en lymfatische ziekten
- Immunoglobuline lichte keten amyloïdose
- Multipel myeloom
- Paraproteïnemieën
- Monoklonale gammopathie van onbepaalde betekenis
- 4- (N-methylamino) -4 '-(2- (2- (2-fluoroethoxy) ethoxy) ethoxy) Stilbeen
Andere studie-ID-nummers
- 2026-00173
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Beschrijving IPD-plan
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .