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Smoldering multiple myeloma risk factors for progression: a Danish population-based cohort study

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  1. Association of Choroidal Effusion and Infusion of Daratumumab

    Research output: Contribution to journalLetterResearch

  2. Risk factors for infections in newly diagnosed Multiple Myeloma patients: A Danish retrospective nationwide cohort study

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. The majority of newly diagnosed myeloma patients do not fulfill the inclusion criteria in clinical phase III trials

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  4. Risk factors for blood stream infections in multiple myeloma: A population-based study of 1154 patients in Denmark

    Research output: Contribution to journalJournal articleResearchpeer-review

  • Rasmus Sørrig
  • Tobias W Klausen
  • Morten Salomo
  • Annette J Vangsted
  • Brian Østergaard
  • Henrik Gregersen
  • Ulf Christian Frølund
  • Niels F Andersen
  • Carsten Helleberg
  • Kristian T Andersen
  • Robert S Pedersen
  • Per Pedersen
  • Niels Abildgaard
  • Peter Gimsing
  • Danish Myeloma Study Group
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Several risk scores for disease progression in Smoldering Multiple Myeloma (SMM) patients have been proposed, however, all have been developed using single center registries. To examine risk factors for time to progression (TTP) to Multiple Myeloma (MM) for SMM we analyzed a nationwide population-based cohort of 321 newly diagnosed SMM patients registered within the Danish Multiple Myeloma Registry between 2005 and 2014. Significant univariable risk factors for TTP were selected for multivariable Cox regression analyses. We found that both an M-protein ≥ 30g/l and immunoparesis significantly influenced TTP (HR 2.7, 95%CI(1.5;4.7), p=0.001, and HR 3.3, 95%CI(1.4;7.8), p=0.002 respectively). High free light chain (FLC) ratio did not significantly influence TTP in our cohort. Therefore, our data do not support the recent IMWG proposal of identifying patients with FLC ratio above 100 as having ultra-high risk of transformation to MM. Using only immunoparesis and M-protein ≥ 30g/l, we created a scoring system to identify low, intermediate and high risk SMM. This first population-based study of SMM patients confirms that an M-protein ≥ 30g/l and immunoparesis remain important risk factors for progression to MM. This article is protected by copyright. All rights reserved.

Original languageEnglish
JournalEuropean Journal of Haematology
ISSN0902-4441
DOIs
Publication statusPublished - 29 Dec 2015

ID: 45968288