Nationwide retrospective review of hematopoietic stem cell transplantation in children with refractory Langerhans cell histiocytosis.

Nationwide retrospective review of hematopoietic stem cell transplantation in children with refractory Langerhans cell histiocytosis. Int J Hematol. 2019 Nov 22;: Authors: Kudo K, Maeda M, Suzuki N, Kanegane H, Ohga S, Ishii E, Shioda Y, Imamura T, Imashuku S, Tsunematsu Y, Endo M, Shimada A, Koga Y, Hashii Y, Noguchi M, Inoue M, Tabuchi K, Morimoto A, Histiocytosis study group of the Japanese Society of Pediatric Hematology/Oncology Abstract The efficacy of and indications for hematopoietic stem cell transplantation (HSCT) in pediatric Langerhans cell histiocytosis (LCH) remain undetermined. This retrospective study analyzed 30 children with refractory LCH who underwent HSCT in Japan between 1996 and 2014. Eleven patients received a myeloablative conditioning (MAC) regimen, while 19 patients received a reduced-intensity conditioning (RIC) regimen. Among the 26 patients with complete data, 23 patients had risk organ (RO) involvement during clinical course. Disease status at HSCT was no active disease (NAD) (4), active disease-regression (AD-r) (2), active disease-stable (AD-s) (4), and active disease-progressive (AD-p) (16). Seventeen of the 30 patients (57%) were alive with a median follow-up of 433 days (range 9-5307) after HSCT. Death occurred within 3 months after HSCT in eight of 13 patients. RIC and MAC patients were similar in both overall survival (OS) (56.8% vs. 63.6%, respectively, p = 0.789) and failure-free survival ...
Source: International Journal of Hematology - Category: Hematology Authors: Tags: Int J Hematol Source Type: research