Open Access

A retrospective comparison of Escherichia coli and polyethylene glycol‑conjugated asparaginase for the treatment of adolescents and adults with newly diagnosed acute lymphoblastic leukemia

  • Authors:
    • Jiabao Liang
    • Pengcheng Shi
    • Xutao Guo
    • Jie Li
    • Lingli He
    • Yan Wang
    • Qi Wei
    • Fen Huang
    • Zhiping Fan
    • Bing Xu
  • View Affiliations

  • Published online on: October 26, 2017     https://doi.org/10.3892/ol.2017.7271
  • Pages:75-82
  • Copyright: © Liang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Data from clinical trials suggest that polyethylene glycol‑conjugated asparaginase (PEG asparaginase) should be recommended as a replacement for Escherichia coli (E. coli) asparaginase in the treatment of pediatric acute lymphoblastic leukemia (ALL) due to its prolonged effect, similar safety profile and convenience. The present study investigated the efficacy and safety of PEG asparaginase in adolescents and adults with newly diagnosed ALL. The clinical data of 122 patients, ≥14 years old with de novo ALL, who received either PEG asparaginase or E. coli asparaginase as part of an induction regimen, were retrospectively analyzed. The results revealed that PEG asparaginase had a comparable complete remission rate (95.65 vs. 90.79%), median overall survival time (14.07 vs. 16.29 months) and median relapse‑free survival time (10.00 vs. 8.57 months) with E. coli asparaginase. In addition, patients <35 years old receiving PEG asparaginase obtained a higher median RFS time compared with those receiving E. coli asparaginase (10.93 vs. 8.97 months; P=0.037). Patients treated with E. coli asparaginase exhibited a significantly higher incidence of central nervous system leukemia (CNSL) compared with those treated with PEG asparaginase (27.63 vs. 10.87%; P=0.028) during the consolidation phase. Toxic events, including allergy, grade III‑IV liver dysfunction, renal function damage and pancreatic lesions were similar between the two groups. A longer duration of coagulation dysfunction (9.80±5.51 vs. 6.80±4.21 days; P=0.002) and agranulocytosis (18.89±8.79 vs. 12.03±8.34 days; P<0.01), and a higher incidence of grade IV‑V infections (22.73 vs. 7.25%; P=0.018) were observed in the PEG asparaginase group. However, these did not increase bleeding events or infection‑associated mortalities. When taking the convenience and superior efficacy in preventing CNSL into consideration, PEG asparaginase is a candidate for first‑line treatment of adolescent and adult ALL. A larger prospective clinical trial is required to further confirm this point of view.

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January 2018
Volume 15 Issue 1

Print ISSN: 1792-1074
Online ISSN:1792-1082

2016 Impact Factor: 1.39
Ranked #68/217 Oncology
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APA
Liang, J., Shi, P., Guo, X., Li, J., He, L., Wang, Y. ... Xu, B. (2018). A retrospective comparison of Escherichia coli and polyethylene glycol‑conjugated asparaginase for the treatment of adolescents and adults with newly diagnosed acute lymphoblastic leukemia. Oncology Letters, 15, 75-82. https://doi.org/10.3892/ol.2017.7271
MLA
Liang, J., Shi, P., Guo, X., Li, J., He, L., Wang, Y., Wei, Q., Huang, F., Fan, Z., Xu, B."A retrospective comparison of Escherichia coli and polyethylene glycol‑conjugated asparaginase for the treatment of adolescents and adults with newly diagnosed acute lymphoblastic leukemia". Oncology Letters 15.1 (2018): 75-82.
Chicago
Liang, J., Shi, P., Guo, X., Li, J., He, L., Wang, Y., Wei, Q., Huang, F., Fan, Z., Xu, B."A retrospective comparison of Escherichia coli and polyethylene glycol‑conjugated asparaginase for the treatment of adolescents and adults with newly diagnosed acute lymphoblastic leukemia". Oncology Letters 15, no. 1 (2018): 75-82. https://doi.org/10.3892/ol.2017.7271