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Comprehensive Evaluation of the Revised International Staging System in Multiple Myeloma Patients Treated with Novel Agents as a Primary Therapy

Authors
 Hyungwoo Cho  ;  Dok Hyun Yoon  ;  Jung Bok Lee  ;  Sung-Yong Kim  ;  Joon Ho Moon  ;  Young Rok Do  ;  Jae Hoon Lee  ;  Yong Park  ;  Ho Sup Lee  ;  Hyeon Seok Eom  ;  Ho-Jin Shin  ;  Chang-Ki Min  ;  Jin Seok Kim  ;  Jae-Cheol Jo  ;  Hye Jin Kang  ;  Yeung-Chul Mun  ;  Won Sik Lee  ;  Je-Jung Lee  ;  Cheolwon Suh  ;  Kihyun Kim 
Citation
 AMERICAN JOURNAL OF HEMATOLOGY, Vol.92(12) : 1280-1286, 2017 
Journal Title
 AMERICAN JOURNAL OF HEMATOLOGY 
ISSN
 0361-8609 
Issue Date
2017
MeSH
Adult ; Aged ; Aged, 80 and over ; Bortezomib/therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Models, Statistical ; Multiple Myeloma/diagnosis* ; Multiple Myeloma/drug therapy ; Multiple Myeloma/mortality ; Neoplasm Staging/standards* ; ROC Curve ; Retrospective Studies ; Risk Assessment ; Survival Rate ; Thalidomide/analogs & derivatives ; Thalidomide/therapeutic use
Abstract
The revised International Staging System (R-ISS) has recently been developed to improve the risk stratification of multiple myeloma (MM) patients over the ISS. We assessed the R-ISS in MM patients who were treated with novel agents as a primary therapy and evaluated its discriminative power and ability to reclassify patients from the ISS. A total of 514 newly diagnosed MM patients treated with novel agents including thalidomide, bortezomib, and lenalidomide as a primary therapy were included in this retrospective analysis. With a median follow-up duration of 42.3 months (range, 40.5-44.1), the median overall survival (OS) was 61.0 months. There was a significant difference in median OS (not reached, 60.9, and 50.1 months for stages 1, 2, and 3, respectively, P < 0.001) among the three stages of R-ISS. The C-statistic was significantly greater for R-ISS than for ISS (0.769 vs. 0.696, P < 0.001). The event NRI was -0.08 (95% confidence interval [CI], -0.18-0.01) and the non-event NRI was 0.05 (95% CI, -0.03-0.10), resulting in a total NRI of -0.03 (95% CI, -0.14-0.08, P = 0.602). The R-ISS performs well and has significantly better discriminative power than the ISS in MM patients treated with novel agents as a primary therapy. However, it does not better reclassify patients from the ISS, suggesting that there is still room to improve the staging system. Moreover, new statistical measures for assessing and quantifying the risk prediction of new prognostic models are necessary in future studies
Full Text
https://onlinelibrary.wiley.com/doi/full/10.1002/ajh.24891
DOI
10.1002/ajh.24891
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jin Seok(김진석) ORCID logo https://orcid.org/0000-0001-8986-8436
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/165814
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