Impact of cytogenetic abnormalities in symptomatic multiple myeloma; a Japanese real-world analysis from Kansai Myeloma Forum

Leuk Res Rep. 2023 Nov 17:20:100395. doi: 10.1016/j.lrr.2023.100395. eCollection 2023.

Abstract

To evaluate the specific prognostic value of CAs, we conducted an analysis of 923 symptomatic multiple myeloma patients. Among this cohort, 480 patients had complete data set of high-risk CAs by interphase fluorescent in situ hybridization at diagnosis. In the high-risk group analysis, the median OS of patients without CAs (n = 338, 72 %) was 6.5 years, patients with del(17p) (n = 42, 9 %) was 4.4 years, patients with t(4;14) or t(14;16) (n = 72, 15 %) was 4.4 years, and patients with double-positive CAs(del(17p) and t(4;14) or t(14;16)) (n = 18, 4 %) was 2.1 years (p = 0.032). Patients with double-positive CAs had a significantly worse prognosis.

Keywords: Double-positive; High-risk chromosomal abnormality; Multiple myeloma; Real-world.