Monoclonal gammopathy of undetermined significance and COVID-19: a population-based cohort study

Abstract Multiple myeloma (MM) patients have increased risk of severe coronavirus disease 2019 (COVID-19) when infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Monoclonal gammopathy of undetermined significance (MGUS), the precursor of MM has been associated with immune dysf...

Full description

Bibliographic Details
Published in:Blood Cancer Journal
Main Authors: Saemundur Rognvaldsson, Elias Eythorsson, Sigrun Thorsteinsdottir, Brynjar Vidarsson, Pall Torfi Onundarson, Bjarni A. Agnarsson, Margret Sigurdardottir, Ingunn Thorsteinsdóttir, Isleifur Olafsson, Hrafnhildur L. Runolfsdottir, Dadi Helgason, Arna R. Emilsdottir, Arnar S. Agustsson, Aron H. Bjornsson, Gudrun Kristjansdottir, Asdis Rosa Thordardottir, Olafur Skuli Indridason, Asbjorn Jonsson, Gauti Kjartan Gislason, Andri Olafsson, Hlif Steingrimsdottir, Petros Kampanis, Malin Hultcrantz, Brian G. M. Durie, Stephen Harding, Ola Landgren, Runolfur Palsson, Thorvarður Jon Love, Sigurdur Yngvi Kristinsson
Format: Article in Journal/Newspaper
Language:English
Published: Nature Publishing Group 2021
Subjects:
Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
Iceland
Online Access:https://doi.org/10.1038/s41408-021-00580-7
https://doaj.org/article/678b5fd2b3314bf290a0f751eb2a96f8
Description
Summary:Abstract Multiple myeloma (MM) patients have increased risk of severe coronavirus disease 2019 (COVID-19) when infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Monoclonal gammopathy of undetermined significance (MGUS), the precursor of MM has been associated with immune dysfunction which may lead to severe COVID-19. No systematic data have been published on COVID-19 in individuals with MGUS. We conducted a large population-based cohort study evaluating the risk of SARS-CoV-2 infection and severe COVID-19 among individuals with MGUS. We included 75,422 Icelanders born before 1976, who had been screened for MGUS in the Iceland Screens Treats or Prevents Multiple Myeloma study (iStopMM). Data on SARS-CoV-2 testing and COVID-19 severity were acquired from the Icelandic COVID-19 Study Group. Using a test-negative study design, we included 32,047 iStopMM participants who had been tested for SARS-CoV-2, of whom 1754 had MGUS. Among these participants, 1100 participants, tested positive, 65 of whom had MGUS. Severe COVID-19 developed in 230 participants, including 16 with MGUS. MGUS was not associated with SARS-CoV-2 infection (Odds ratio (OR): 1.05; 95% confidence interval (CI): 0.81–1.36; p = 0.72) or severe COVID-19 (OR: 0.99; 95%CI: 0.52–1.91; p = 0.99). These findings indicate that MGUS does not affect the susceptibility to SARS-CoV-2 or the severity of COVID-19.

Similar Items