Abstract
Chromosomal aberrations have significant prognostic importance in multiple myeloma (MM). However, proteasome inhibitors (PI) and IMiDs may partly overcome the poor prognostic impact of some of them. In this study, we investigated a population-based consecutive cohort newly diagnosed patients with MM admitted during a defined time period to hospitals in Denmark, Norway, and Sweden. The impact of treatment modality on the prognostic importance of specific chromosomal aberration was investigated, with special reference to gain 1q21. The median follow-up of patients still alive at analysis was 40 months for the high-dose (HDT)-treated ones and 29 months for the whole population. Three hundred forty-seven patients with a known 1q21 status were included in this study. The 347 patients were divided into three groups, that is, 119 patients with the 1q21 gain, 105 patients with other aberrations (OA), that is, del(13q), del(17p), t(4,14), and/or (14;16), and 123 patients with no aberrations (NA). The groups were compared in terms of overall survival (OS), time to progression (TTP), and response. The 3-yr OS for patients with gain 1q21 was 60% compared to patients with OA 74% and NO 82% (gain 1q21 vs. NO P < 0.001; gain 1q21 vs. OA P = 0...Continue Reading
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