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We analyzed 232 patients with previously untreated, symptomatic WM, of whom 10% were 50 years of age and 21% were > 75 years of age. Disease features and response to treatment were similar among age groups. Patients > 75 years of age had significantly shorter survival (OS; 53 months vs. 113 months for those > 50-75 years vs. not reached for patients 50 years of age; P < .001). Despite the fact that 33% of elderly patients died of causes unrelated to WM, disease-specific survival (DSS) was 72 months for patients > 75 years, 120 months for those > 50-75 years and not reached for patients 50 years (P = .001). International Prognostic Scoring System for WM (IPSSWM) could discriminate 3 risk groups with significantly different OS or DSS. The addition of elevated serum lactate dehydrogenase in the IPSS improved the ability of IPSS to identify a group of patients with a significantly worse outcome (median survival, 55 months).

When the novel agents thalidomide, bortezomib and lenalidomide are administered to patients with myeloma in the context of clinical trials, they are associated with a significant improvement in response, progression-free survival and in some studies, overall survival (OS); however, their effect on the outcome of unselected myeloma patients has not been fully assessed. We compared the outcome of 1376 unselected patients with symptomatic myeloma, who started treatment before or after the introduction of thalidomide. The median OS in patients who started treatment after the introduction of novel agents increased by 12 months (48 vs 36 months, P70 years (from 26 to 33 months, P = 0.27). In patients treated after the introduction of novel agents, the international staging system (ISS) could discriminate three groups with significantly different outcomes (5-year survival for ISS stage I, II and III was 66, 45 and 18%, respectively, P