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Title: Natural history of multiple myeloma with de novo del(17p).
Author: Lakshman A, Painuly U, Rajkumar SV, Ketterling RP, Kapoor P, Greipp PT, Gertz MA, Buadi FK, Lacy MQ, Dingli D, Dispenzieri A, Fonder AL, Hayman SR, Hobbs MA, Gonsalves WI, Hwa YL, Leung N, Go RS, Lin Y, Kourelis TV, Warsame R, Lust JA, Russell SJ, Zeldenrust SR, Kyle RA, Kumar SK.
Journal: Blood Cancer J; 2019 Mar 07; 9(3):32. PubMed ID: 30846679.
Abstract:
We compared the outcomes of 310 patients with newly diagnosed multiple myeloma with del(17p) detected by FISH to patients with high-risk translocations (HRT) (n = 79) and standard-risk (SR) cytogenetics (n = 541). The median progression-free survival (PFS) following initial therapy for the three groups was 21.1, 22, and 30.1 months, respectively (P = 0.437- del(17p) vs. HRT); the median overall survival (OS) was 47.3, 79.1, and 109.8 months, respectively, (P = 0.007- del(17p) vs. HRT). PFS and OS for patients with relative loss of 17p (n = 21) were comparable to other patients with del(17p). The PFS was similar between the del(17p) and HRT groups when stratified for age, ISS stage or treatment. The OS of del(17p) and HRT groups were similar in presence of advanced age, ISS III stage or if patients did not receive a proteasome-inhibitor containing induction. ISS III stage, high LDH and HRT, but not the percentage of cells with del(17p) predicted shorter OS in patients with del(17p). The median OS for low (ISS I, normal LDH and no HRT), intermediate (neither low nor high-risk) and high-risk (ISS III and either elevated LDH or coexistent HRT) groups among del(17p) patients were 96.2, 45.4, and 22.8 months, respectively, allowing further risk stratification.

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