Patients with newly diagnosed symptomatic multiple myeloma per IMWG criteria prior to therapy initiation are enrolled in the study. The aim of the study is to investigate clinical and disease related risk factors for venous thromboembolism (VTE) in these patients as well as possible biomarkers of hypercoagulability linked with the occurrence of venous thromboembolism at diagnosis and during the disease course. The purpose is to create a risk assessment model for VTE in newly diagnosed multiple myeloma patients and make the model more accurate by combining relevant clinical and disease characteristics with biomarkers of cellular and plasma hypercoagulability. A standardized clinical research form is completed for all patients at baseline, 3, 6 and 12 month follow up to include relevant clinical, patient-related, disease-related and treatment related data. Blood sampling also takes place at baseline and 3,6,12 months to assess multiple biomarkers of plasma and cellular hypercoagulability. In addition lowe limb ultrasound is performed at baseline, 6 and 12 months. The primary endpoint is VTE occurrence. Following the elaboration of the ROADMAP-CAT-MM risk assessment model we will prospectively validate it. We expect that patients who are classified, as high risk according to the ROADMAP-CAT-MM will experience symptomatic VTE more frequently and will have higher morbidity and mortality rates during the follow-up. The prospective validation of the ROADMAP-CAT-MM will provide guidance for the use and choice of thromboprophylaxis in these patients and will identify high risk patients eligible for thromboprophylaxis with low molecular weight heparin (tinzaparin). In addition to symptomatic patients with multiple myeloma the study aims to investigate VTE risk in all plasma cell dyscrasias and will recruit patients with monoclonal gammopathy of undetermined significance, asymptomatic multiple myeloma, primary amyloidosis and Waldenström's macroglobulinemia.
Age range
18 Years
Sex
ALL
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Symptomatic venous thromboembolism
Timeframe: 12 months