Phase 2 study of nilotinib in pediatric patients with Philadelphia chromosome–positive chronic myeloid leukemia

Nobuko Hijiya, Alexey Maschan, Carmelo Rizzari, Hiroyuki Shimada, Carlo Dufour, Hiroaki Goto, Hyoung Jin Kang, Terri Guinipero, Zeynep Karakas, Francisco Bautista, Stéphane Ducassou, Keon Hee Yoo, Christian Michel Zwaan, Frédéric Millot, Paola Aimone, Alex Allepuz, Sara Quenet, Florence Hourcade-Potelleret, Sabine Hertle, Darintr Sosothikul

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Chronic myeloid leukemia (CML) is rare in children and accounts for £15% of all myeloid leukemia cases. When we initiated this study with nilotinib, imatinib was the only tyrosine kinase inhibitor indicated for pediatric patients with Philadelphia chromosome–positive (Ph1) CML in chronic phase (CP); alternative treatment options were needed, particularly for patients who developed resistance or intolerance (R/I) to imatinib. This phase 2 study enrolled pediatric patients with either Ph1 CML-CP R/I to imatinib or dasatinib or newly diagnosed Ph1 CML-CP. Data presented are from analyses with minimum follow-up of up to 24 cycles (1 cycle is 28 days). Fifty-nine patients with Ph1 CML-CP were enrolled, and 58 were treated (R/I, n 5 33; newly diagnosed, n 5 25). Major molecular response (MMR) rate at cycle 6 in the R/I cohort was 39.4% (primary end point); 57.6% of patients achieved or maintained MMR and 81.8% achieved or maintained complete cytogenetic response (CCyR) by 24 cycles. In patients with newly diagnosed disease, rates of MMR by cycle 12 and CCyR at cycle 12 were 64.0% each (primary end points); by cycle 24, cumulative MMR and CCyR rates were 68.0% and 84.0%, respectively. The safety profile of nilotinib in pediatric patients was generally comparable with the known safety profile in adults, although cardiovascular events were not observed in this study, and hepatic laboratory abnormalities were more frequent; no new safety signals were identified. In summary, nilotinib demonstrated efficacy and a manageable safety profile in pediatric patients with Ph1 CML-CP. This trial was registered at www.clinicaltrials.gov as #NCT01844765. (Blood. 2019;134(23):2036-2045).

本文言語English
ページ(範囲)2036-2045
ページ数10
ジャーナルBlood
134
23
DOI
出版ステータスPublished - 2019 12 5

ASJC Scopus subject areas

  • 生化学
  • 免疫学
  • 血液学
  • 細胞生物学

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