Tyrosine kinase inhibitor resistance in pediatric chronic myeloid leukemia: a case report

  • Mururul Aisyi Department of Pediatric Hematology Oncology, Indonesia National Cancer Center, Dharmais Cancer Hospital, Jakarta, Indonesia; Department of Research and Development, Indonesia National Cancer Center, Dharmais Cancer Hospital, Jakarta, Indonesia https://orcid.org/0000-0001-9754-5696
  • Ayu Hutami Syarif Department of Research and Development, Indonesia National Cancer Center, Dharmais Cancer Hospital, Jakarta, Indonesia
  • Nur Asih Department of Research and Development, Indonesia National Cancer Center, Dharmais Cancer Hospital, Jakarta, Indonesia
  • Agus Kosasih Department of Clinical Pathology, Indonesia National Cancer Center, Dharmais Cancer Hospital, Jakarta, Indonesia
Keywords: children, chronic myeloid leukemia, tyrosine kinase inhibitor
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Pediatric chronic myeloid leukemia (CML) is a hematopoietic malignancy, treated by tyrosine kinase inhibitor (TKI). Previously, imatinib resistance in CML was treated with nilotinib as a second line. However, in Indonesia, where the options of TKIs are limited, no case has been reported. We describe TKI-resistance of a pediatric CML case in Dharmais Cancer Hospital, Jakarta. A 17-year-old boy presented with loss of complete hematologic response after 4 years of imatinib treatment. Diagnosis of relapsed CML with blast crisis was confirmed, and nilotinib was given accordingly. He achieved hematological and optimal response after 2 weeks and 3 months of treatment, respectively. However, in the 12-month evaluation, he failed to achieve major molecular response and acquired the second resistance to TKI. Since imatinib resistance marks the poor prognosis, initial optimal response of nilotinib treatment remains inconclusive to predict the final outcome.


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How to Cite
Aisyi M, Syarif AH, Asih N, Kosasih A. Tyrosine kinase inhibitor resistance in pediatric chronic myeloid leukemia: a case report. Med J Indones [Internet]. 2020Oct.16 [cited 2020Oct.28];1(1). Available from: https://mji.ui.ac.id/journal/index.php/mji/article/view/3765
Case Report/Series