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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/227696
Prognostic risk and survival of asymptomatic IgM monoclonal gammopathy: Results from a Spanish Multicenter Registry
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Asymptomatic IgM gammopathy encompasses IgM monoclonal gammopathy of undetermined significance (MGUS) and asymptomatic Waldenström macroglobulinemia (AWM), both having a risk of progression to symptomatic disease. Here, we assessed the risk of progression and the mortality of 956 patients with asymptomatic IgM gammopathy across 25 Spanish centers. After a median follow-up of 5.7 years, 156 patients progressed, most of them to symptomatic WM (SWM). The cumulative incidence of progression was 13% and 20% at 5 and 10 years, respectively. The serum IgM ≥10 g/L, bone marrow (BM) infiltration ≥20%, β2-microglobulin ≥3 mg/L, and albumin <4 g/dL were the most potent predictors of disease progression in a multivariate Cox regression model, allowing the identification of three risk categories. The probability of progression to symptomatic disease at 5 years was 4.5%, 15.7%, and 42.8% for low-, intermediate-, and high-risk groups, respectively. In patients without a BM evaluation, the presence of none or 1 risk factor and 2 or 3 risk factors conferred a progression risk of 6% and 27% at 5 years, respectively. The model was independent of the presence of MYD88 L265P, which conferred a negative impact only in AWM patients. The relative survival (RS) ratio at 5 years of asymptomatic patients was similar to the Spanish population, which contrasted with the 0.76 5-year RS of SWM patients. Overall, the Spanish Multicenter Model comprehensively describes the risk of progression of asymptomatic patients and shows that the excess mortality is increased only in the symptomatic stage of the disease.
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MORENO FAJARDO, David, JIMÉNEZ, Cristina, ESCALANTE, Fernando, ASKARI, Elham, CASTELLANOS ALONSO, Marta, ARNAO, Mario, HEREDIA, Ángela, CANALES ALBENDEA, Miguel ángel, ALCALÁ, Magdalena, BERMÚDEZ, Arancha, SAUS CARRERES, Ana, CASANOVA, María, PALOMERA BERNAL, Luis, MOTLLÓ, Cristina, GARCIA SÁNCHEZ, Ricarda, RIOS RULL, P.j., GARCÍA SANZ, Ramón, FERNÁNDEZ DE LARREA, Carlos. Prognostic risk and survival of asymptomatic IgM monoclonal gammopathy: Results from a Spanish Multicenter Registry. _Hemasphere_. 2024. Vol. 8, núm. 11. [consulta: 28 de febrer de 2026]. ISSN: 2572-9241. [Disponible a: https://hdl.handle.net/2445/227696]