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The international staging system improves the IPI risk stratification in patients with diffuse large B-cell lymphoma
Xiaolei Wei1, Xiaoxiao Hao1, Lizhi Zhou2
1Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
The international staging system (ISS), based on serum beta-2 microglobulin and albumin, is used to predict survival in multiple myeloma, but its prognostic significance in diffuse large B-cell lymphoma (DLBCL) remains unknown. Herein, we retrospectively analyzed 215 de novo DLBCL patients. According to ISS, there were 90 of 215 (41.9%) patients in stage I, 98 of 215 (45.6%) in stage II and 27 of 215 (12.6%) in stage III group. Patients with ISS stage II/III showed shorter overall survival (OS) and event free survival (EFS) than those with stage I treated with R-CHOP (p = 0.012 and p = 0.043, respectively), but not those treated with CHOP regimen (p > 0.05). Multivariable analysis revealed that ISS, independent of IPI, indicated different survival in both OS (HR, 5.690; 95% CI, 1.270-25.495, p = 0.023) and EFS (HR, 2.116; 95% CI, 1.005-4.455, p = 0.049) in DLBCL patients treated with R-CHOP. ISS could identify patients with better outcome in intermediate-high/high IPI risk patients (p < 0.05). Our data suggests that advanced ISS stage is associated with inferior outcome in DLBCL patients treated with R-CHOP. ISS could identify a subgroup of DLBCL patients with superior outcome from high IPI risk patients, which may help to avoid intensive therapy.
The international staging system (ISS), based on serum beta-2 microglobulin and albumin, is used to predict survival in multiple myeloma, but its prognostic significance in diffuse large B-cell lymphoma (DLBCL) remains unknown. Herein, we retrospectively analyzed 215 de novo DLBCL patients. According to ISS, there were 90 of 215 (41.9%) patients in stage I, 98 of 215 (45.6%) in stage II and 27 of 215 (12.6%) in stage III group. Patients with ISS stage II/III showed shorter overall survival (OS) and event free survival (EFS) than those with stage I treated with R-CHOP (p = 0.012 and p = 0.043, respectively), but not those treated with CHOP regimen (p > 0.05). Multivariable analysis revealed that ISS, independent of IPI, indicated different survival in both OS (HR, 5.690; 95% CI, 1.270-25.495, p = 0.023) and EFS (HR, 2.116; 95% CI, 1.005-4.455, p = 0.049) in DLBCL patients treated with R-CHOP. ISS could identify patients with better outcome in intermediate-high/high IPI risk patients (p < 0.05). Our data suggests that advanced ISS stage is associated with inferior outcome in DLBCL patients treated with R-CHOP. ISS could identify a subgroup of DLBCL patients with superior outcome from high IPI risk patients, which may help to avoid intensive therapy.
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