Volume 19, Issue 1 pp. 136-148
ORIGINAL ARTICLE

Safety and efficacy of high-dose cytarabine MEAM therapy and other treatments for auto-peripheral blood stem cell transplantation: A retrospective comparative study

Shunsuke Yui

Shunsuke Yui

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Satoshi Wakita

Satoshi Wakita

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Yasunobu Nagata

Yasunobu Nagata

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Yasuko Kuribayashi

Yasuko Kuribayashi

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Toshio Asayama

Toshio Asayama

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Yusuke Fujiwara

Yusuke Fujiwara

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Masahiro Sakaguchi

Masahiro Sakaguchi

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Satoshi Yamanaka

Satoshi Yamanaka

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Atsushi Marumo

Atsushi Marumo

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Ikuko Omori

Ikuko Omori

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Ryosuke Kinoshita

Ryosuke Kinoshita

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Daishi Onai

Daishi Onai

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Mika Sunakawa

Mika Sunakawa

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Yuta Kaito

Yuta Kaito

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Kazuki Inai

Kazuki Inai

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Taichiro Tokura

Taichiro Tokura

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Atsushi Takeyoshi

Atsushi Takeyoshi

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Shunichi Yasuda

Shunichi Yasuda

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Shunsuke Honma

Shunsuke Honma

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Kazutaka Nakayama

Kazutaka Nakayama

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Tsuneaki Hirakawa

Tsuneaki Hirakawa

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Kunihito Arai

Kunihito Arai

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Tomoaki Kitano

Tomoaki Kitano

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Muneo Okamoto

Muneo Okamoto

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Koiti Inokuchi

Koiti Inokuchi

Department of Hematology, Nippon Medical School, Tokyo, Japan

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Hiroki Yamaguchi

Corresponding Author

Hiroki Yamaguchi

Department of Hematology, Nippon Medical School, Tokyo, Japan

Correspondence

Hiroki Yamaguchi, Department of Hematology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-Ku 113-8602, Tokyo.

Email: [email protected]

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First published: 22 May 2022

Abstract

Aim

The MEAM regimen consisting of ranimustine (MCNU), etoposide (ETP), cytarabine (Ara-C), and melphalan (MEL) is widely used before auto-peripheral blood stem cell transplantation (auto-PBSCT) for malignant lymphoma in Japan. The MEAM regimen generally consists of 200–400 mg/m2 for 4 days, but we decided to increase the dosage of Ara-C from the standard to 2 g/m2 for 2 days with the aim of increasing drug transferability to the central nervous system. We evaluate the safety and therapeutic efficacy of high-dose Ara-C MEAM therapy.

Methods

The high-dose Ara-C MEAM protocol consisted of MCNU 300 mg/m2 on day –7, ETP 200 mg/m2 on days –6, –5, –4, –3 and Ara-C 2 g/m2 on day –4 –3, and MEL 140 mg/m2 on day –2. We retrospectively analyzed 37 cases of malignant lymphoma at our institution between May 2014 and July 2020.

Results

All patients got engraftment and there were no cases of treatment-related mortality. In all cases, the 3-year overall survival (OS) and progression-free survival (PFS) after transplantation were 80.6% and 65.7%, respectively. Twenty-one cases of diffuse large B-cell lymphoma recurrence, for which there is proven usefulness of auto-PBSCT, showed good results after transplantation, with the 3-year OS and PFS after transplantation being 100% and 74.3%, respectively.

Conclusion

The safety and efficacy of high-dose Ara-C MEAM therapy were demonstrated, but the expected therapeutic effect on central nervous system lesions could not be fully evaluated owing to the small number of cases.

CONFLICTS OF INTEREST

None of the authors has a financial interest in the conduct or reporting of the study.

DATA AVAILABILITY STATEMENT

The data that support the statistical analysis of this study are available from the corresponding author upon reasonable request.

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