نتایج جستجو برای: imatinib
تعداد نتایج: 7067 فیلتر نتایج به سال:
The purpose of this study was to explore the role of the organic anion-transporting polypeptide (OATP) 1A2, which is encoded by SLCO1A2, in the cellular uptake of the Bcr-Abl tyrosine kinase inhibitor imatinib, and the relationship between SLCO1A2 polymorphisms and the pharmacokinetics of imatinib in patients with chronic myeloid leukemia (CML). Imatinib uptake was significantly enhanced in OAT...
Imatinib mesylate (Glivec®; Novartis, Basel, Switzerland), a protein kinase inhibitor of the BCR–ABL fusion protein, has demonstrated significant clinical efficacy in the treatment of Philadelphia (Ph) chromosome-positive chronic myeloid leukemia (CML). Imatinib mesylate (hereinafter shortly referred to as imatinib) produces durable responses and prolonged survival; therefore, it has become the...
Challenges today concern chronic myeloid leukemia (CML) patients resistant to imatinib. There is growing evidence that imatinib-resistant leukemic cells present abnormal glucose metabolism but the impact on mitochondria has been neglected. Our work aimed to better understand and exploit the metabolic alterations of imatinib-resistant leukemic cells. Imatinib-resistant cells presented high glyco...
Imatinib at 400 mg daily is standard treatment for chronic myeloid leukemia in chronic phase. We here describe the correlation of imatinib trough plasma concentrations (C(mins)) with clinical responses, event-free survival (EFS), and adverse events (AEs). Trough level plasma samples were obtained on day 29 (steady state, n = 351). Plasma concentrations of imatinib and its metabolite CGP74588 we...
PURPOSE The purpose of this research was to compare the survival of patients with Philadelphia chromosome (Ph) -positive chronic myelogenous leukemia (CML) post-IFN-alpha failure treated with imatinib to historical experiences with standards of care or other therapies. EXPERIMENTAL DESIGN The outcome of 261 patients with Ph-positive chronic phase CML post-IFN failure treated with imatinib was...
INTRODUCTION Current therapy options for chronic myeloid leukemia (CML) include conventional chemotherapy, allogeneic stem cell transplant, interferon-alfa, and imatinib mesylate, which has recently achieved gold standard status. Although the majority of patients initially respond well to treatment with imatinib, wider clinical experience with this drug has resulted in the development of imatin...
PURPOSE Review the state-of-art knowledge of the biology and therapy of chronic myelogenous leukemia (CML). EXPERIMENTAL DESIGN A review of the literature was undertaken to summarize current information on the pathophysiology of CML and to update data of imatinib mesylate therapy, mechanisms of resistance, and in vitro and clinical data with the new tyrosine kinase inhibitors. RESULTS Imati...
PURPOSE To evaluate the effects of ritonavir, a potent inhibitor of CYP3A4, on the steady-state pharmacokinetics of imatinib. EXPERIMENTAL DESIGN Imatinib pharmacokinetics were evaluated in cancer patients receiving the drug for at least 2 months, after which ritonavir (600 mg) was administered daily for 3 days. Samples were obtained on the day before ritonavir (day 1) and on the third day (d...
PURPOSE In addition to mutated BCR-ABL1 kinase, the organic cation transporter 1 (OCT1, encoded by SLC22A1) has been considered to contribute to imatinib resistance in patients with chronic myeloid leukemia (CML). As data are conflicting as to whether OCT1 transports imatinib and may serve as a clinical biomarker, we used a combination of different approaches including animal experiments to elu...
BACKGROUND Cytochrome P450 3A (CYP3A) isoenzyme metabolic activity varies between individuals and is therefore a possible candidate of influence on the therapeutic outcome of the tyrosine kinase inhibitor imatinib in patients with chronic myeloid leukemia (CML). The aim of this study was to investigate the influence of CYP3A metabolic activity on the plasma concentration and outcome of imatinib...
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