PMID- 29155313 OWN - NLM STAT- MEDLINE DCOM- 20190305 LR - 20190305 IS - 1523-6536 (Electronic) IS - 1083-8791 (Linking) VI - 24 IP - 3 DP - 2018 Mar TI - A Phase II, Multicenter, Single-Arm Study to Evaluate the Safety and Efficacy of Deferasirox after Hematopoietic Stem Cell Transplantation in Children with beta-Thalassemia Major. PG - 613-618 LID - S1083-8791(17)30820-0 [pii] LID - 10.1016/j.bbmt.2017.11.006 [doi] AB - We conducted a prospective, phase II, multicenter, single-arm study to evaluate the efficacy and safety of deferasirox in patients age >2 to <18 years with beta-thalassemia major (TM) who underwent hematopoietic stem cell transplantation (HSCT) and had evidence of iron overload (serum ferritin >1000 microg/L; cardiac MRI T2* <20 ms, or liver iron concentration [LIC; by MRI R2] >/=5 mg/g). Patients received deferasirox at an initial dose of 10 mg/kg/day, with up-titration to a maximum of 20 mg/kg/day. The study continued for 52 weeks and included a total of 27 patients (mean age, 9.1 +/- 3.8 years; 70.4% male). One patient (3.7%) was lost to follow-up. The majority of patients (n = 20; 74.1%) were able to achieve the intended dose of 20 mg/kg/day. No deaths occurred. A total of 134 adverse events (AEs) were reported in 25 patients (92.6%) during the study. The majority of patients had grade 1 or 2 AEs, with only 8 patients (29.6%) experiencing grade 3 AEs. Only 10 AEs occurring in 4 patients (14.8%) were suspected to be related to deferasirox (ALT/AST increase, n = 4; urinary tract infection, n = 1). The deferasirox dose had to be adjusted or interrupted for 6 AEs occurring in 4 patients (14.8%). A total of 6 serious AEs occurred in 3 patients (11.1%), none of which were suspected to be related to deferasirox. From baseline to week 52, there were decreases in median concentrations of alanine aminotransferase (ALT), from 30.0 to 17.0 IU/L, and aspartate aminotransferase (AST), from 35.5 to 26.0 IU/L. Median serum creatinine and cystatin C concentrations were similar at baseline and week 52. There was a continuous and significant decrease in median serum ferritin level from 1718.0 microg/L at baseline to 845.3 microg/L following 52 weeks of therapy (P < .001); 9 patients (33.3%) achieved a level of <500 microg/L. There was also a significant decrease in median LIC (from 8.6 to 4.1 mg/g; P < .001) and an increase in median cardiac T2* (from 26.0 to 28.0 ms; P = .520) from baseline to week 52. Our findings indicate that deferasirox treatment at doses up to 20 mg/kg/day reduces the iron burden in children with TM post-HSCT, with a manageable safety profile. CI - Copyright (c) 2017 The American Society for Blood and Marrow Transplantation. Published by Elsevier Inc. All rights reserved. FAU - Yesilipek, Mehmet Akif AU - Yesilipek MA AD - Pediatric Hematology, Medical Park Antalya Hospital, Antalya, Turkey. Electronic address: yesilipek@gmail.com. FAU - Karasu, Gulsun AU - Karasu G AD - Pediatric Hematology, Medical Park Goztepe Hospital, Istanbul, Turkey. FAU - Kaya, Zuhre AU - Kaya Z AD - Pediatric Hematology, Faculty of Medicine, Gazi University, Ankara, Turkey. FAU - Kuskonmaz, Baris B AU - Kuskonmaz BB AD - Pediatric Hematology, Faculty of Medicine, Hacettepe University, Ankara, Turkey. FAU - Uygun, Vedat AU - Uygun V AD - Pediatric Hematology, Medical Park Antalya Hospital, Antalya, Turkey. FAU - Dag, Ilkiz AU - Dag I AD - Novartis Oncology, Istanbul, Turkey. FAU - Ozudogru, Onur AU - Ozudogru O AD - Novartis Oncology, Istanbul, Turkey. FAU - Ertem, Mehmet AU - Ertem M AD - Pediatric Hematology, Faculty of Medicine, Ankara University, Ankara, Turkey. LA - eng SI - ClinicalTrials.gov/NCT01610297 PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study DEP - 20171116 PL - United States TA - Biol Blood Marrow Transplant JT - Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation JID - 9600628 RN - 9007-73-2 (Ferritins) RN - V8G4MOF2V9 (Deferasirox) SB - IM MH - Adolescent MH - Allografts MH - Child MH - Child, Preschool MH - Deferasirox/*administration & dosage/adverse effects MH - Female MH - Ferritins/*blood MH - *Hematopoietic Stem Cell Transplantation MH - Humans MH - *Iron Overload/blood/etiology/prevention & control MH - Male MH - *beta-Thalassemia/blood/therapy OTO - NOTNLM OT - Bone marrow transplant OT - Iron chelation OT - Iron overload OT - Transfusion-dependent thalassemia EDAT- 2017/11/21 06:00 MHDA- 2019/03/06 06:00 CRDT- 2017/11/21 06:00 PHST- 2017/03/13 00:00 [received] PHST- 2017/11/02 00:00 [accepted] PHST- 2017/11/21 06:00 [pubmed] PHST- 2019/03/06 06:00 [medline] PHST- 2017/11/21 06:00 [entrez] AID - S1083-8791(17)30820-0 [pii] AID - 10.1016/j.bbmt.2017.11.006 [doi] PST - ppublish SO - Biol Blood Marrow Transplant. 2018 Mar;24(3):613-618. doi: 10.1016/j.bbmt.2017.11.006. Epub 2017 Nov 16.