Division of Hematology, Mayo Clinic, Rochester, MN.
Division of Hematology, Mayo Clinic, Rochester, MN.
Mayo Clin Proc. 2018 Oct;93(10):1363-1374. doi: 10.1016/j.mayocp.2018.04.013. Epub 2018 Jun 14.
To develop a new risk model for primary myelodysplastic syndromes (MDS) that integrates information on mutations, karyotype, and clinical variables.
Patients with World Health Organization-defined primary MDS seen at Mayo Clinic (MC) from December 28, 1994, through December 19, 2017, constituted the core study group. The National Taiwan University Hospital (NTUH) provided the validation cohort. Model performance, compared with the revised International Prognostic Scoring System, was assessed by Akaike information criterion and area under the curve estimates.
The study group consisted of 685 molecularly annotated patients from MC (357) and NTUH (328). Multivariate analysis of the MC cohort identified monosomal karyotype (hazard ratio [HR], 5.2; 95% CI, 3.1-8.6), "non-MK abnormalities other than single/double del(5q)" (HR, 1.8; 95% CI, 1.3-2.6), RUNX1 (HR, 2.0; 95% CI, 1.2-3.1) and ASXL1 (HR, 1.7; 95% CI, 1.2-2.3) mutations, absence of SF3B1 mutations (HR, 1.6; 95% CI, 1.1-2.4), age greater than 70 years (HR, 2.2; 95% CI, 1.6-3.1), hemoglobin level less than 8 g/dL in women or less than 9 g/dL in men (HR, 2.3; 95% CI, 1.7-3.1), platelet count less than 75 × 10/L (HR, 1.5; 95% CI, 1.1-2.1), and 10% or more bone marrow blasts (HR, 1.7; 95% CI, 1.1-2.8) as predictors of inferior overall survival. Based on HR-weighted risk scores, a 4-tiered Mayo alliance prognostic model for MDS was devised: low (89 patients), intermediate-1 (104), intermediate-2 (95), and high (69); respective median survivals (5-year overall survival rates) were 85 (73%), 42 (34%), 22 (7%), and 9 months (0%). The Mayo alliance model was subsequently validated by using the external NTUH cohort and, compared with the revised International Prognostic Scoring System, displayed favorable Akaike information criterion (1865 vs 1943) and area under the curve (0.87 vs 0.76) values.
We propose a simple and contemporary risk model for MDS that is based on a limited set of genetic and clinical variables.
开发一种新的原发性骨髓增生异常综合征(MDS)风险模型,该模型整合了突变、核型和临床变量的信息。
从 1994 年 12 月 28 日至 2017 年 12 月 19 日,在梅奥诊所(MC)就诊的符合世界卫生组织定义的原发性 MDS 患者构成了核心研究组。国立台湾大学医院(NTUH)提供了验证队列。通过 Akaike 信息准则和曲线下面积估计值来评估模型性能与修订后的国际预后评分系统的比较。
研究组包括来自 MC(357 例)和 NTUH(328 例)的 685 例分子标记患者。MC 队列的多变量分析确定了单体核型(风险比 [HR],5.2;95%CI,3.1-8.6)、“非 MK 异常,除了单个/双缺失 5q”(HR,1.8;95%CI,1.3-2.6)、RUNX1(HR,2.0;95%CI,1.2-3.1)和 ASXL1(HR,1.7;95%CI,1.2-2.3)突变、SF3B1 突变缺失(HR,1.6;95%CI,1.1-2.4)、年龄大于 70 岁(HR,2.2;95%CI,1.6-3.1)、女性血红蛋白水平低于 8g/dL 或男性血红蛋白水平低于 9g/dL(HR,2.3;95%CI,1.7-3.1)、血小板计数低于 75×10/L(HR,1.5;95%CI,1.1-2.1)和骨髓原始细胞比例大于 10%(HR,1.7;95%CI,1.1-2.8)是总生存不良的预测因子。基于 HR 加权风险评分,设计了一个 4 级梅奥联盟 MDS 预后模型:低危(89 例)、中危-1(104 例)、中危-2(95 例)和高危(69 例);相应的中位生存期(5 年总生存率)分别为 85(73%)、42(34%)、22(7%)和 9 个月(0%)。随后,使用外部 NTUH 队列对梅奥联盟模型进行了验证,与修订后的国际预后评分系统相比,该模型具有更好的 Akaike 信息准则(1865 与 1943)和曲线下面积(0.87 与 0.76)值。
我们提出了一种简单而现代的 MDS 风险模型,该模型基于有限的遗传和临床变量。