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논문 기본 정보

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학술저널
저자정보
유건희 (성균관대학교) 정낙균 (가톨릭대학교) 조빈 (가톨릭대학교) 강형진 (서울대학교) 신희영 (서울대학교) 임호준 (울산대학교) 서종진 (울산대학교) 임영탁 (부산대학교) 유철주 (연세대학교) 김순기 (인하대학교) 전인상 (가천대학교) 국훈 (전남대학교) 구홍회 (성균관대학교)
저널정보
대한소아혈액종양학회 Clinical Pediatric Hematology-Oncology Clinical Pediatric Hematology-Oncology Vol.24 No.2
발행연도
2017.1
수록면
101 - 106 (6page)

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Background: Although the overall survival of childhood acute lymphoblastic leukemia (ALL) approaches 85-90%, the prognosis of relapsed or refractory (R/R) ALL is grave. This study aimed to identify the treatment pattern, treatment response, and overall survival of these patients. Methods: We reviewed data of 64 patients with R/R ALL whose initial diagnosis of ALL had been made between 1 and 21 years of age. Patients who received clofarabine as part of an induction regimen were excluded. Relapsed patients were limited to those who relapsed after ≥2 prior induction regimens. Treatment patterns, response rates, and overall survival were analyzed. Results: Patients’ median age was 15.0 years (range, 6.0-25.0) at the diagnosis of R/R ALL. The most frequently used agents other than steroid were vincristine (54.0%), cytarabine (44.6%), and idarubicin (36.5%), while L-asparaginase was used in only one patient. The complete remission (CR) and overall response (OR) rates were 38.1 and 42.9%, respectively. Sixteen patients (25.4%) underwent allogeneic hematopoietic stem cell transplantation (HSCT). The 5-year overall survival was 6.7%. The survival of patients with HSCT was significantly higher compared with those without HSCT (35.2% vs 0%, P=0.0097). Among 14 patients who achieved CR or CR without platelet recovery (CRp) before HSCT, the 3-year survival was 46.9%. Conclusion: The survival of Korean patients with R/R childhood ALL was dismal despite a reasonable CR rate, whereas that of those who received HSCT after CR or CRp was excellent. More treatment options are needed to improve the overall outcome of R/R childhood ALL.

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