Abstract:
BACKGROUND:Racial disparity in the incidence of multiple myeloma is well established; however, to the authors' knowledge, little is known regarding the impact of racial differences on disease characteristics, response to therapy, and clinical outcome. METHODS:The authors studied 453 patients (174 of whom were black and 279 of whom were white) who underwent transplant between 2000 and 2013. The median follow-up was 4.4 years. RESULTS:Black patients were significantly younger than white patients (median age, 54 years vs 59 years; P<.0001), more frequently presented with anemia (P = .04), had more of the immunoglobulin G isotype (P<.001), and had a borderline favorable cytogenetic risk (P = .06). Overall response to induction was similar, but deeper responses were observed in more white patients compared with black patients receiving immunomodulatory drug-based induction (P = .02). Referral for transplant was significantly delayed in black individuals (median, 1.3 years vs 0.9 years; P = .003). Overall survival from the time of transplant was similar for black and white patients, with medians of 6.2 years and 5.7 years, respectively, but survival from the time of diagnosis was significantly longer among black individuals (median, 7.7 years vs 6.1 years; P = .03). Maintenance therapy was found to positively impact progression-free survival but not overall survival, irrespective of race. CONCLUSIONS:The results of the current study confirm ethnic differences in age, referral patterns, response to therapy, and overall survival. Future validation of these disparities is urgently needed.
journal_name
Cancerjournal_title
Cancerauthors
Bhatnagar V,Wu Y,Goloubeva OG,Ruehle KT,Milliron TE,Harris CG,Rapoport AP,Yanovich S,Sausville EA,Baer MR,Badros AZdoi
10.1002/cncr.29160subject
Has Abstractpub_date
2015-04-01 00:00:00pages
1064-70issue
7eissn
0008-543Xissn
1097-0142journal_volume
121pub_type
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