Clinical utility of the Revised International Staging System in unselected patients with newly diagnosed and relapsed multiple myeloma

N. Tandon, S Vincent Rajkumar, B. LaPlant, A. Pettinger, Martha Lacy, Angela Dispenzieri, F. K. Buadi, Morie Gertz, S. R. Hayman, N. Leung, R. S. Go, David M Dingli, Prashant Kapoor, Yi Lin, Y. L. Hwa, A. L. Fonder, M. A. Hobbs, S. R. Zeldenrust, J. A. Lust, Wilson GonsalvesStephen J Russell, Shaji K Kumar

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

We analyzed the utility of Revised International staging system (RISS) in an unselected cohort of newly diagnosed multiple myeloma (NDMM; cohort 1), and relapsed/refractory multiple myeloma (RRMM; cohort 2) patients. Cohort 1 included 1900 patients seen within 90 days of diagnosis, from 2005 to 2015, while cohort 2 had 887 patients enrolled in 23 clinical trials at Mayo Clinic. The overall survival (OS) and progression-free survival (PFS) was calculated from the time since diagnosis or trial registration. The median estimated follow up was 5 and 2.3 years for Cohorts 1 and 2, respectively. Among 1067 patients evaluable in Cohort 1, the median OS and PFS was 10 and 2.8 years for RISS stage I, 6 and 2.7 years for RISS stage II and 2.6 and 1.3 years for RISS stage III (P<0.0001). Among 456 patients evaluable in Cohort 2, the median OS and PFS was 4.3 and 1.1 years for RISS stage I, 2 and 0.5 years for RISS stage II and 0.8 and 0.2 years for RISS stage III (P<0.0001). In conclusions, RISS gives a better differentiation of NDMM as well as RRMM patients into three survival subgroups and should be used to stratify patients in future clinical trials.

Original languageEnglish (US)
Pages (from-to)e528
JournalBlood Cancer Journal
Volume7
Issue number2
DOIs
StatePublished - Feb 17 2017

ASJC Scopus subject areas

  • Hematology
  • Oncology

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