AI Article Synopsis

  • High-risk multiple myeloma patients show poor clinical outcomes compared to standard-risk patients, as identified through cytogenetic and FISH testing.
  • A study of 670 myeloma patients revealed that 11% were classified as high-risk, displaying lower response rates and significantly shorter progression-free and overall survival times after undergoing autologous stem-cell transplantation.
  • The presence of multiple high-risk cytogenetic abnormalities correlates with worse survival, emphasizing the need for tailored treatment strategies for these patients despite advancements in therapies.

Article Abstract

Background: Conventional cytogenetics and interphase fluorescence in-situ hybridization (FISH) identify a high-risk multiple myeloma population characterized by poor response and short survival.

Patients And Methods: We compared outcomes between high-risk and standard-risk myeloma patients who underwent autologous hematopoietic stem-cell transplantation (auto-HCT) at our institution between January 2005 and December 2009. High-risk myeloma was defined as -13/del(13q) or hypodiploidy in at least 2 metaphases of conventional cytogenetics, or -17/del(17p), t(4;14), t(14;16), t(14;20), hypodiploidy (< 45 chromosomes excluding -Y), or chromosome 1 abnormalities (+1q, -1p, t(1;x)) on FISH or conventional cytogenetics.

Results: Of 670 myeloma patients, 74 (11%) had high-risk myeloma. These high-risk patients had significantly lower overall response rates (74% vs. 85%; P < .01), shorter median progression-free survival (10.3 vs. 32.4 months; P < .001), and shorter overall survival (28 months vs. not reached; P < .001) than the standard-risk patients. Having only 1 high-risk cytogenetic abnormality or experiencing at least very good partial remission after auto-HCT independently predicted improved progression-free survival and overall survival (P < .05) in high-risk patients.

Conclusion: Even in an era of novel therapies, cytogenetically identified high-risk myeloma patients have worse prognoses than standard-risk myeloma patients after auto-HCT, and having more than 1 high-risk cytogenetic abnormality further reduces survival.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4644689PMC
http://dx.doi.org/10.1016/j.clml.2015.07.641DOI Listing

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