Background: \- Recent studies have shown that the premalignant conditions monoclonal gammopathy of undetermined significance (MGUS) and smoldering multiple myeloma (SMM) have a high risk of progressing to multiple myeloma (MM). There are currently no known effective treatments to prevent MGUS or SMM from developing into MM, and there are no known tests for determining whether an individual with MGUS or SMM will develop MM. Researchers are investigating new and improved imaging techniques that may be able to better detect the progression of MGUS or SMM into MM. Objectives: * To compare the results of three imaging techniques in individuals with MGUS, SMM, and MM. * To correlate the information from the imaging studies with established clinical markers of progression from MGUS/SMM to MM. Eligibility: \- Individuals at least 18 years of age who have been diagnosed with monoclonal gammopathy of undetermined significance, smoldering multiple myeloma, or multiple myeloma. Design: * Participants will be screened with a physical examination and medical history, and will provide baseline blood, urine, and bone marrow samples before beginning the imaging studies. * Participants will have three imaging studies on separate days: a standard 18-fludeoxyglucose positron emission tomography/computed tomography scan (18-FDG PET/CT), a PET/CT scan with an experimental sodium fluoride-based drug (18-NaF PET/CT), and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). * Participants will be closely monitored during each scan, and will provide additional blood samples before and after the scans. * Participants may provide additional blood, urine, tissue, and bone marrow samples for optional research studies.
Age range
18 Years
Sex
ALL
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A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Count of Participants With Positive and Negative 18F-FDG PET CT and F18-NaF PET CT Imaging Results in Individuals With MGUS, SMM, and MM.
Timeframe: 60 days
Count of Participants With Positive DCE-MRI Imaging Results
Timeframe: 60 days