Cited by 4,427Acute Myeloid Leukemia ResearchRetinoids in leukemia and cellular processesHematopoietic Stem Cell Transplantation

International scoring system for evaluating prognosis in myelodysplastic syndromes

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Greenberg, Peter, Cox, Christopher, LeBeau, Michelle M., Fenaux, Pierre, Morel, Pierre, Sanz, Guillermo, Sanz, Miguel, Vallespi, Teresa +7 more·1997·Blood

Abstract

Despite multiple disparate prognostic risk analysis systems for evaluating clinical outcome for patients with myelodysplastic syndrome (MDS), imprecision persists with such analyses. To attempt to improve on these systems, an International MDS Risk Analysis Workshop combined cytogenetic, morphological, and clinical data from seven large previously reported risk-based studies that had generated prognostic systems. A global analysis was performed on these patients, and critical prognostic variables were re-evaluated to generate a consensus prognostic system, particularly using a more refined bone marrow (BM) cytogenetic classification. Univariate analysis indicated that the major variables having an impact on disease outcome for evolution to acute myeloid leukemia were cytogenetic abnormalities, percentage of BM myeloblasts, and number of cytopenias; for survival, in addition to the above, variables also included age and gender. Cytogenetic subgroups of outcome were as follows: “good” outcomes were normal, −Y alone, del(5q) alone, del(20q) alone; “poor” outcomes were complex (ie, ≥3 abnormalities) or chromosome 7 anomalies; and “intermediate” outcomes were other abnormalities. Multivariate analysis combined these cytogenetic subgroups with percentage of BM blasts and number of cytopenias to generate a prognostic model. Weighting these variables by their statistical power separated patients into distinctive subgroups of risk for 25% of patients to undergo evolution to acute myeloid leukemia, with: low (31% of patients), 9.4 years; intermediate-1 (INT-1; 39%), 3.3 years; INT-2 (22%), 1.1 years; and high (8%), 0.2 year. These features also separated patients into similar distinctive risk groups for median survival: low, 5.7 years; INT-1, 3.5 years; INT-2, 1.2 years; and high, 0.4 year. Stratification for age further improved analysis of survival. Compared with prior risk-based classifications, this International Prognostic Scoring System provides an improved method for evaluating prognosis in MDS. This classification system should prove useful for more precise design and analysis of therapeutic trials in this disease.

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  • Despite advances in understanding the genetic basis of MDS and AML, cure rates have not substantially improved in the last 40 years.

    “Despite tremendous advances in understanding the genetic basis of MDS and AML, cure rates have not substantially improved in the last 40 years (45).”

    From <i>Txnip</i> Enhances Fitness of <i>Dnmt3a</i> -Mutant Hematopoietic Stem Cells via <i>p21</i> (2022) · cites this paper as [45]

    The paper’s prognostic-classification section reports survival and progression to AML, and its leukemia-free-survival section discusses outcomes by risk group; page numbers are unavailable in our copy. Neither addresses whether MDS and AML cure rates changed over 40 years despite advances in genetic understanding (searched: cure rates, treatment progress, and decades). (LLM, conf=0.76)

    Experimental — accuracy not yet measured

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Authors
Greenberg, P., Cox, C., LeBeau, M. M., Fenaux, P., Morel, P., Sanz, G., Sanz, M., Vallespi, T., Hamblin, T., Oscier, D., Ohyashiki, K., Toyama, K., Aul, C., Mufti, G., & Bennett, J.
Affiliations
  • Tokyo Medical University (JP)
  • From the Hematology Divisions of Stanford University Medical Center, Stanford, CA; the Rochester Medical Center, Rochester, NY; the University of Chicago, Chicago, IL; Centre Hospitalier Universitaire, Lille, France; Hospital La Fe, Valencia, Spain; Hospital Vall d'Hebron, Barcelona, Spain; the Royal Bournemouth Hospital, Bournemouth, UK; the Tokyo Medical College, Tokyo, Japan; the Heinrich Heine University, Dusseldorf, Germany; and the King's College Hospital, London, UK.
Venue
Blood
Published
1997-03-15
Volume
89
Issue
6
Pages
2079-2088
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W187238933
Cited by
4,427
References
33
Citations by year
2026: 45 · 2025: 69 · 2024: 93 · 2023: 124 · 2022: 131 · 2021: 155 · 2020: 167 · 2019: 144 · 2018: 174 · 2017: 226 · 2016: 183 · 2015: 205 · 2014: 232 · 2013: 253 · 2012: 256
FWCI
36.61
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Acute Myeloid Leukemia Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinoids in leukemia and cellular processes
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
Keywords
myelodysplastic syndrome, prognostic score, International Prognostic Scoring System, risk stratification, bone marrow cytogenetics, acute myeloid leukemia transformation, bone marrow blasts, cytopenia, survival, del(5q), del(20q)
MeSH terms
Acute Disease, Adolescent, Adult, Age Factors, Aged, Bone Marrow, Female, Follow-Up Studies, Humans, Leukemia, Myeloid, Male, Middle Aged, Myelodysplastic Syndromes, Prognosis, Sex Factors, Multivariate Analysis, Survival Analysis, Risk Assessment

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