Feasibility of tacrolimus, methotrexate, and prednisolone as a graft-versus-host disease prophylaxis in non-T-cell-depleted haploidentical hematopoietic stem cell transplantation for children

Kazuhiro Mochizuki, Atsushi Kikuta, Masaki Ito, Hideki Sano, Mitsuko Akaihata, Shogo Kobayashi, Hitoshi Ohto, Mitsuaki Hosoya
Clinical Transplantation 2011, 25 (6): 892-7
In this study, we evaluated the feasibility of our graft-versus-host disease (GVHD) prophylaxis with tacrolimus, methotrexate, and prednisolone in non-T-cell-depleted haploidentical hematopoietic stem cell transplantation (HSCT) for children. Twenty-one consecutive patients including those with hematological malignancies (n = 11), solid tumors (n = 7), and non-malignancies (n = 3) were analyzed. Myeloablative and reduced intensity conditionings were carried out in 5 and 16 patients, respectively, and both of the regimens contained anti-human T-lymphocyte immunoglobulin. Twenty (95%) of the 21 patients achieved primary engraftment. Acute GVHD of grades II-IV and III-IV were observed in nine (47%) and one (5%) patient, respectively, all of which were controllable by steroids. Chronic GVHD was observed in eight (51%) of the 17 evaluable patients, and one of them developed steroid refractory chronic GVHD. Treatment-related mortality occurred in three patients (15%), as a result of acute pancreatitis, chronic GVHD, and EB virus associated lymphoproliferative disease. The median follow-up of the 13 survivors was 24 months, and the two-yr probability of overall survival was 68%. The Karnofsky performance scale score of the 13 survivors was 100%. These results indicated the feasibility of our GVHD prophylaxis in non-T-cell-depleted haploidentical HSCT for children.

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