Volume 190, Issue 1 pp. 84-92
Research Paper

Impact of graft-versus-host disease and graft-versus-leukemia effect based on minimal residual disease in Philadelphia chromosome-positive acute lymphoblastic leukemia

Yu Akahoshi

Yu Akahoshi

Division of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan

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Aiko Igarashi

Aiko Igarashi

Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan

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Takahiro Fukuda

Takahiro Fukuda

Division of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan

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Naoyuki Uchida

Naoyuki Uchida

Department of Hematology, Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital, Tokyo, Japan

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Masatsugu Tanaka

Masatsugu Tanaka

Department of Hematology, Kanagawa Cancer Center, Yokohama, Japan

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Yukiyasu Ozawa

Yukiyasu Ozawa

Department of Hematology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan

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Yoshinobu Kanda

Yoshinobu Kanda

Division of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan

Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan

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Makoto Onizuka

Makoto Onizuka

Department of Hematology and Oncology, Tokai University School of Medicine, Kanagawa, Japan

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Tatsuo Ichinohe

Tatsuo Ichinohe

Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan

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Junji Tanaka

Junji Tanaka

Department of Hematology, Tokyo Women's Medical University, Tokyo, Japan

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Yoshiko Atsuta

Yoshiko Atsuta

Japanese Data Center for Hematopoietic Cell Transplantation, Nagoya, Japan

Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan

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Shinichi Kako

Corresponding Author

Shinichi Kako

Division of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan

Correspondence: Shinichi Kako, Division of Hematology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-cho, Omiya-ku, Saitama City, Saitama 330-8503, Japan.

E-mail: [email protected]

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on behalf of the Adult Acute Lymphoblastic Leukemia Working Group of the Japan Society for Hematopoietic Cell Transplantation

the Adult Acute Lymphoblastic Leukemia Working Group of the Japan Society for Hematopoietic Cell Transplantation

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First published: 02 March 2020
Citations: 14

Summary

The impacts of graft-versus-host disease (GVHD) and graft-versus-leukemia (GVL) effect might differ depending on minimal residual disease (MRD). Therefore, we examined 1,022 recipients who underwent their first allogeneic hematopoietic stem cell transplantation (HSCT) for Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph-positive ALL) in first complete remission. MRD status at HSCT was negative in 791 (77·4%) and positive in 231 (22·6%). The impact of GVHD as a time-dependent covariate on transplant outcomes were analyzed while adjusting for other possible variables. Mild acute GVHD [hazard ratio (HR), 0·90; 95% confidence interval (CI), 0·70–1·16; P = 0·901] and chronic GVHD (HR, 0·82, 95% CI, 0·58–1·14; P = 0·238) were not significantly associated with overall mortality, whereas severe acute GVHD (HR, 2·26, 95% CI, 1·64–3·11; P < 0·001) resulted in inferior overall survival due to high non-relapse mortality. Moreover, even in the subgroup analyses stratified according to MRD status, acute and chronic GVHD were not significantly associated with better overall survival. Therefore, less intensive GVHD prophylaxis to achieve a GVL effect is not recommended for Ph-positive ALL.

Conflict of interest

The authors declare no competing interests relevant to this article.

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