Effect of graft sources on allogeneic hematopoietic stem cell transplantation outcome in adults with chronic myeloid leukemia in the era of tyrosine kinase inhibitors: a Japanese Society of Hematopoietic Cell Transplantation retrospective analysis

Kazuteru Ohashi, Tokiko Nagamura-Inoue, Fumitaka Nagamura, Arinobu Tojo, Kouichi Miyamura, Takehiko Mori, Mineo Kurokawa, Shuichi Taniguchi, Jun Ishikawa, Yasuo Morishima, Yoshiko Atsuta, Hisashi Sakamaki

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Abstract

We retrospectively compared transplant outcomes for related bone marrow transplantation (rBMT), related peripheral blood stem cell transplantation (rPBSCT), unrelated bone marrow transplantation (uBMT), and unrelated cord blood transplantation (CBT) in 1,062 patients with chronic myeloid leukemia (CML) aged 20 years or over between January 1, 2000 and December 31, 2009 in Japan. The disease status was as follows: chronic phase 1 (CP1, n = 531), CP 2 or later including accelerated phase (CP2-AP, n = 342) and blastic crisis (BC, n = 189). Graft sources (GS) were rBMT (n = 205), uBMT (n = 507), rPBSCT (n = 226) or CBT (n = 124). In multivariate analysis in CP1, lower overall survival (OS) (relative risk [RR]: 6.01, 95 % confidence interval [CI]: 1.20-29.97, P = 0.029) and leukemia-free survival (LFS) (RR: 4.26, 95 % CI: 1.24-14.62, P = 0.021) were observed in uBMT compared with those in rBMT. For patients in the advanced phase of CML beyond CP1, GS had no significant impact on OS or LFS. Our results support the use of rBMT for adults with CML in CP1, but in contrast to previous reports, the superiority of rPBSCT in advanced stage of CML was not confirmed in our cohorts.

Original languageEnglish
Pages (from-to)296-306
Number of pages11
JournalInternational Journal of Hematology
Volume100
Issue number3
DOIs
Publication statusPublished - 2014 Sep 1

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ASJC Scopus subject areas

  • Medicine(all)

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