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Adattini JA, Adiwidjaja J, Gross AS, McLachlan AJ. Application of physiologically based pharmacokinetic modeling to understand real-world outcomes in patients receiving imatinib for chronic myeloid leukemia. Pharmacol Res Perspect 2023; 11:e01082. [PMID: 37417254 DOI: 10.1002/prp2.1082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 02/18/2023] [Accepted: 03/09/2023] [Indexed: 07/08/2023] Open
Abstract
We aimed to use physiologically based pharmacokinetic (PBPK) modeling and simulation to predict imatinib steady-state plasma exposure in patients with chronic myeloid leukemia (CML) to investigate variability in outcomes. A validated imatinib PBPK model (Simcyp Simulator) was used to predict imatinib AUCss , Css,min and Css,max for patients with CML (n = 68) from a real-world retrospective observational study. Differences in imatinib exposure were evaluated based on clinical outcomes, (a) Early Molecular Response (EMR) achievement and (b) occurrence of grade ≥3 adverse drug reactions (ADRs), using the Kruskal-Wallis rank sum test. Sensitivity analyses explored the influence of patient characteristics and drug interactions on imatinib exposure. Simulated imatinib exposure was significantly higher in patients who achieved EMR compared to patients who did not (geometric mean AUC0-24,ss 51.2 vs. 42.7 μg h mL-1 , p < 0.05; Css,min 1.1 vs. 0.9 μg mL-1 , p < 0.05; Css,max 3.4 vs. 2.8 μg mL-1 , p < 0.05). Patients who experienced grade ≥3 ADRs had a significantly higher simulated imatinib exposure compared to patients who did not (AUC0-24,ss 56.1 vs. 45.9 μg h mL-1 , p < 0.05; Css,min 1.2 vs. 1.0 μg mL-1 , p < 0.05; Css,max 3.7 vs. 3.0 μg mL-1 , p < 0.05). Simulations identified a range of patient (sex, age, weight, abundance of hepatic CYP2C8 and CYP3A4, α1 -acid glycoprotein concentrations, liver and kidney function) and medication-related factors (dose, concomitant CYP2C8 modulators) contributing to the inter-individual variability in imatinib exposure. Relationships between imatinib plasma exposure, EMR achievement and ADRs support the rationale for therapeutic drug monitoring to guide imatinib dosing to achieve optimal outcomes in CML.
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Affiliation(s)
- Josephine A Adattini
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Jeffry Adiwidjaja
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Annette S Gross
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
- Clinical Pharmacology Modelling & Simulation, GlaxoSmithKline R&D, Sydney, Australia
| | - Andrew J McLachlan
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
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Ferreira APS, Seguro FS, Abdo ARN, Santos FM, Maciel FVR, Nardinelli L, Giorgi RR, Ruiz ARL, Ferreira MPS, Rego EM, Rocha V, Bendit I. Real-world Imatinib Mesylate Treatment in Patients with Chronic Myeloid Leukemia: The Importance of Molecular Monitoring and the Early Molecular Response. Ann Hematol 2023:10.1007/s00277-023-05189-3. [PMID: 37052662 DOI: 10.1007/s00277-023-05189-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/16/2023] [Indexed: 04/14/2023]
Abstract
INTRODUCTION Chronic myeloid leukemia (CML) is a clonal myeloproliferative disorder characterized by the Philadelphia (Ph) chromosome. After the introduction of imatinib mesylate (IM) in 2000, the natural history of the disease changed. Data on the treatment of CML with IM are from randomized clinical trials. Establishing whether these results can be reproduced or if caution is needed when extrapolating data to the general population with CML is essential. OBJECTIVES To evaluate the molecular response (MR) in patients with chronic-phase CML (CML-CP) not included in clinical studies and correlate them with the responses obtained in clinical trials. METHODS Between January 2007 and January 2017, 227 patients newly diagnosed with CML-CP treated with IM as first-line treatment were included. This study is an observational, retrospective, and single-center study. RESULTS At a median follow-up time of 7.3 years, 60.3% of the 227 patients who started IM were still on IM. Early molecular response (EMR) at 3 and 6 months was achieved by 74.2% and 65%, respectively. The median time to a MMR was nine months. The MR4.0 and MR4.5 were 67.2% and 51.1%, respectively. The overall survival (OS), progression-free survival (PFS), and event-free survival (EFS) of the patients who exclusively used IM were 91%, 91%, and 85.1%, respectively. CONCLUSION The results presented are similar to those described in prospective and randomized trials, demonstrating that the outcomes are reproducible in the real world. EMR at 3 and 6 months reflects better long-term responses, including higher rates of deeper molecular responses. Considering treatment costs, the absence of literature evidence of an impact on overall survival demonstrated by first-line second-generation tyrosine kinase inhibitors (TKIs), and the global OS of 85.8%, imatinib mesylate (IM) is still an excellent therapeutic option.
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Affiliation(s)
- Amanda Pifano Soares Ferreira
- Hematology Clinic Oncoclinicas, Sao Paulo, Brazil
- Department of Hematology, Transfusion and Cell Therapy, University of Sao Paulo Medical School (HCFMUSP), Sao Paulo, Brazil
| | - Fernanda Salles Seguro
- Department of Hematology, Transfusion and Cell Therapy, University of Sao Paulo Medical School (HCFMUSP), Sao Paulo, Brazil
- Department of Hematology, Cancer Institute of Sao Paulo, University of Sao Paulo Medical School (ICESP), Sao Paulo, Brazil
| | - Andre Ramires Neder Abdo
- Department of Hematology, Cancer Institute of Sao Paulo, University of Sao Paulo Medical School (ICESP), Sao Paulo, Brazil
| | - Fernanda Maria Santos
- Department of Hematology, Cancer Institute of Sao Paulo, University of Sao Paulo Medical School (ICESP), Sao Paulo, Brazil
| | - Felipe Vieira Rodrigues Maciel
- Department of Hematology, Cancer Institute of Sao Paulo, University of Sao Paulo Medical School (ICESP), Sao Paulo, Brazil
- Hemato-Oncologia, DASA-Genômica, Sao Paulo, Brazil
| | - Luciana Nardinelli
- Laboratory of Medical Investigation in Pathogenesis and targeted therapy in Onco-Immuno-Hematology (LIM/31), Department of Hematology, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Ricardo Rodrigues Giorgi
- Laboratory of Medical Investigation in Pathogenesis and targeted therapy in Onco-Immuno-Hematology (LIM/31), Department of Hematology, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Antonio Roberto Lancha Ruiz
- Department of Hematology, Transfusion and Cell Therapy, University of Sao Paulo Medical School (HCFMUSP), Sao Paulo, Brazil
| | | | - Eduardo Magalhaes Rego
- Department of Hematology, Transfusion and Cell Therapy, University of Sao Paulo Medical School (HCFMUSP), Sao Paulo, Brazil
- Department of Hematology, Cancer Institute of Sao Paulo, University of Sao Paulo Medical School (ICESP), Sao Paulo, Brazil
- Laboratory of Medical Investigation in Pathogenesis and targeted therapy in Onco-Immuno-Hematology (LIM/31), Department of Hematology, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Vanderson Rocha
- Department of Hematology, Transfusion and Cell Therapy, University of Sao Paulo Medical School (HCFMUSP), Sao Paulo, Brazil
- Department of Hematology, Cancer Institute of Sao Paulo, University of Sao Paulo Medical School (ICESP), Sao Paulo, Brazil
- Laboratory of Medical Investigation in Pathogenesis and targeted therapy in Onco-Immuno-Hematology (LIM/31), Department of Hematology, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Israel Bendit
- Department of Hematology, Transfusion and Cell Therapy, University of Sao Paulo Medical School (HCFMUSP), Sao Paulo, Brazil.
- Laboratory of Medical Investigation in Pathogenesis and targeted therapy in Onco-Immuno-Hematology (LIM/31), Department of Hematology, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil.
- Hemato-Oncologia, DASA-Genômica, Sao Paulo, Brazil.
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Yaung SJ, Woestmann C, Ju C, Ma XM, Gattam S, Zhou Y, Xi L, Pal S, Balasubramanyam A, Tikoo N, Heussel CP, Thomas M, Kriegsmann M, Meister M, Schneider MA, Herth FJ, Wehnl B, Diehn M, Alizadeh AA, Palma JF, Muley T. Early Assessment of Chemotherapy Response in Advanced Non-Small Cell Lung Cancer with Circulating Tumor DNA. Cancers (Basel) 2022; 14:cancers14102479. [PMID: 35626082 PMCID: PMC9139958 DOI: 10.3390/cancers14102479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 11/16/2022] Open
Abstract
Monitoring treatment efficacy early during therapy could enable a change in treatment to improve patient outcomes. We report an early assessment of response to treatment in advanced NSCLC using a plasma-only strategy to measure changes in ctDNA levels after one cycle of chemotherapy. Plasma samples were collected from 92 patients with Stage IIIB-IV NSCLC treated with first-line chemo- or chemoradiation therapies in an observational, prospective study. Retrospective ctDNA analysis was performed using next-generation sequencing with a targeted 198-kb panel designed for lung cancer surveillance and monitoring. We assessed whether changes in ctDNA levels after one or two cycles of treatment were associated with clinical outcomes. Subjects with ≤50% decrease in ctDNA level after one cycle of chemotherapy had a lower 6-month progression-free survival rate (33% vs. 58%, HR 2.3, 95% CI 1.2 to 4.2, log-rank p = 0.009) and a lower 12-month overall survival rate (25% vs. 70%, HR 4.3, 95% CI 2.2 to 9.7, log-rank p < 0.001). Subjects with ≤50% decrease in ctDNA level after two cycles of chemotherapy also had shorter survival. Using non-invasive liquid biopsies to measure early changes in ctDNA levels in response to chemotherapy may help identify non-responders before standard-of-care imaging in advanced NSCLC.
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Affiliation(s)
- Stephanie J. Yaung
- Roche Sequencing Solutions, Inc., Pleasanton, CA 94588, USA; (X.M.M.); (L.X.); (J.F.P.)
- Correspondence: ; Tel.: +1-925-523-8824
| | | | - Christine Ju
- Roche Molecular Systems, Inc., Pleasanton, CA 94588, USA; (C.J.); (S.G.); (Y.Z.); (S.P.); (A.B.)
| | - Xiaoju Max Ma
- Roche Sequencing Solutions, Inc., Pleasanton, CA 94588, USA; (X.M.M.); (L.X.); (J.F.P.)
| | - Sandeep Gattam
- Roche Molecular Systems, Inc., Pleasanton, CA 94588, USA; (C.J.); (S.G.); (Y.Z.); (S.P.); (A.B.)
| | - Yiyong Zhou
- Roche Molecular Systems, Inc., Pleasanton, CA 94588, USA; (C.J.); (S.G.); (Y.Z.); (S.P.); (A.B.)
| | - Liu Xi
- Roche Sequencing Solutions, Inc., Pleasanton, CA 94588, USA; (X.M.M.); (L.X.); (J.F.P.)
| | - Subrata Pal
- Roche Molecular Systems, Inc., Pleasanton, CA 94588, USA; (C.J.); (S.G.); (Y.Z.); (S.P.); (A.B.)
| | - Aarthi Balasubramanyam
- Roche Molecular Systems, Inc., Pleasanton, CA 94588, USA; (C.J.); (S.G.); (Y.Z.); (S.P.); (A.B.)
| | - Nalin Tikoo
- Alector, Inc., South San Francisco, CA 94080, USA;
| | - Claus Peter Heussel
- Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik, University Hospital, 69126 Heidelberg, Germany;
- Diagnostic and Interventional Radiology, University Hospital, 69120 Heidelberg, Germany
- Translational Lung Research Centre (TLRC) Heidelberg, Member of the German Centre for Lung Research (DZL), 69120 Heidelberg, Germany; (M.T.); (M.M.); (M.A.S.); (F.J.H.); (T.M.)
| | - Michael Thomas
- Translational Lung Research Centre (TLRC) Heidelberg, Member of the German Centre for Lung Research (DZL), 69120 Heidelberg, Germany; (M.T.); (M.M.); (M.A.S.); (F.J.H.); (T.M.)
- Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, 69126 Heidelberg, Germany
| | - Mark Kriegsmann
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany;
| | - Michael Meister
- Translational Lung Research Centre (TLRC) Heidelberg, Member of the German Centre for Lung Research (DZL), 69120 Heidelberg, Germany; (M.T.); (M.M.); (M.A.S.); (F.J.H.); (T.M.)
- Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, 69126 Heidelberg, Germany
| | - Marc A. Schneider
- Translational Lung Research Centre (TLRC) Heidelberg, Member of the German Centre for Lung Research (DZL), 69120 Heidelberg, Germany; (M.T.); (M.M.); (M.A.S.); (F.J.H.); (T.M.)
- Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, 69126 Heidelberg, Germany
| | - Felix J. Herth
- Translational Lung Research Centre (TLRC) Heidelberg, Member of the German Centre for Lung Research (DZL), 69120 Heidelberg, Germany; (M.T.); (M.M.); (M.A.S.); (F.J.H.); (T.M.)
- Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, 69126 Heidelberg, Germany
| | - Birgit Wehnl
- Roche Diagnostics GmbH, 82377 Penzberg, Germany;
| | - Maximilian Diehn
- Stanford Cancer Institute, Stanford University, Stanford, CA 94305, USA; (M.D.); (A.A.A.)
| | - Ash A. Alizadeh
- Stanford Cancer Institute, Stanford University, Stanford, CA 94305, USA; (M.D.); (A.A.A.)
| | - John F. Palma
- Roche Sequencing Solutions, Inc., Pleasanton, CA 94588, USA; (X.M.M.); (L.X.); (J.F.P.)
| | - Thomas Muley
- Translational Lung Research Centre (TLRC) Heidelberg, Member of the German Centre for Lung Research (DZL), 69120 Heidelberg, Germany; (M.T.); (M.M.); (M.A.S.); (F.J.H.); (T.M.)
- Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, 69126 Heidelberg, Germany
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Stella S, Zammit V, Vitale SR, Pennisi MS, Massimino M, Tirrò E, Forte S, Spitaleri A, Antolino A, Siracusa S, Accurso V, Mannina D, Impera S, Musolino C, Russo S, Malato A, Mineo G, Musso M, Porretto F, Martino B, Di Raimondo F, Manzella L, Vigneri P, Stagno F. Clinical Implications of Discordant Early Molecular Responses in CML Patients Treated with Imatinib. Int J Mol Sci 2019; 20:ijms20092226. [PMID: 31064152 PMCID: PMC6539817 DOI: 10.3390/ijms20092226] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 11/16/2022] Open
Abstract
A reduction in BCR-ABL1/ABL1IS transcript levels to <10% after 3 months or <1% after 6 months of tyrosine kinase inhibitor therapy are associated with superior clinical outcomes in chronic myeloid leukemia (CML) patients. In this study, we investigated the reliability of multiple BCR-ABL1 thresholds in predicting treatment outcomes for 184 subjects diagnosed with CML and treated with standard-dose imatinib mesylate (IM). With a median follow-up of 61 months, patients with concordant BCR-ABL1/ABL1IS transcripts below the defined thresholds (10% at 3 months and 1% at 6 months) displayed significantly superior rates of event-free survival (86.1% vs. 26.6%) and deep molecular response (≥ MR4; 71.5% vs. 16.1%) compared to individuals with BCR-ABL1/ABL1IS levels above these defined thresholds. We then analyzed the outcomes of subjects displaying discordant molecular transcripts at 3- and 6-month time points. Among these patients, those with BCR-ABL1/ABL1IS values >10% at 3 months but <1% at 6 months fared significantly better than individuals with BCR-ABL1/ABL1IS <10% at 3 months but >1% at 6 months (event-free survival 68.2% vs. 32.7%; p < 0.001). Likewise, subjects with BCR-ABL1/ABL1IS at 3 months >10% but <1% at 6 months showed a higher cumulative incidence of MR4 compared to patients with BCR-ABL1/ABL1IS <10% at 3 months but >1% at 6 months (75% vs. 18.2%; p < 0.001). Finally, lower BCR-ABL1/GUSIS transcripts at diagnosis were associated with BCR-ABL1/ABL1IS values <1% at 6 months (p < 0.001). Our data suggest that when assessing early molecular responses to therapy, the 6-month BCR-ABL1/ABL1IS level displays a superior prognostic value compared to the 3-month measurement in patients with discordant oncogenic transcripts at these two pivotal time points.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antineoplastic Agents/therapeutic use
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Female
- Fusion Proteins, bcr-abl/antagonists & inhibitors
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- Humans
- Imatinib Mesylate/therapeutic use
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Male
- Middle Aged
- Protein Kinase Inhibitors/therapeutic use
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Treatment Outcome
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Affiliation(s)
- Stefania Stella
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Center of Experimental Oncology and Hematology, A.O.U. Policlinico Vittorio Emanuele, 95123 Catania, Italy.
| | - Valentina Zammit
- Division of Hematology and Bone Marrow Transplant, AOU Policlinico - V. Emanuele, 95123 Catania, Italy.
| | - Silvia Rita Vitale
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Center of Experimental Oncology and Hematology, A.O.U. Policlinico Vittorio Emanuele, 95123 Catania, Italy.
| | - Maria Stella Pennisi
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Center of Experimental Oncology and Hematology, A.O.U. Policlinico Vittorio Emanuele, 95123 Catania, Italy.
| | - Michele Massimino
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Center of Experimental Oncology and Hematology, A.O.U. Policlinico Vittorio Emanuele, 95123 Catania, Italy.
| | - Elena Tirrò
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Center of Experimental Oncology and Hematology, A.O.U. Policlinico Vittorio Emanuele, 95123 Catania, Italy.
| | - Stefano Forte
- Mediterranean Institute of Oncology, 95029 Viagrande, Italy.
| | - Antonio Spitaleri
- Division of Hematology and Bone Marrow Transplant, AOU Policlinico - V. Emanuele, 95123 Catania, Italy.
| | - Agostino Antolino
- Department of Transfusional Medicine, Maria Paternò-Arezzo Hospital, 97100 Ragusa, Italy.
| | - Sergio Siracusa
- Division of Hematology, A.O.U. Policlinico "P. Giaccone", University of Palermo, 90127 Palermo, Italy.
| | - Vincenzo Accurso
- Division of Hematology, A.O.U. Policlinico "P. Giaccone", University of Palermo, 90127 Palermo, Italy.
| | - Donato Mannina
- Division of Hematology, Papardo Hospital, 98158 Messina, Italy.
| | - Stefana Impera
- Division of Oncology and Hematology, ARNAS Garibaldi-Nesima, 95122 Catania, Italy.
| | - Caterina Musolino
- Division of Hematology, University of Messina, 98125 Messina, Italy.
| | - Sabina Russo
- Division of Hematology, University of Messina, 98125 Messina, Italy.
| | - Alessandra Malato
- Division of Hematology and Bone Marrow Transplant, Villa Sofia-Cervello Hospital, 90146 Palermo, Italy.
| | - Giuseppe Mineo
- Division of Hematology, San Vincenzo Hospital, 98039 Taormina, Italy.
| | - Maurizio Musso
- Division of Hematology, La Maddalena Hospital, 90146 Palermo, Italy.
| | | | - Bruno Martino
- Hematology Department, Grande Ospedale Metropolitano, Reggio Calabria, 89124 Reggio Calabria, Italy.
| | - Francesco Di Raimondo
- Division of Hematology and Bone Marrow Transplant, AOU Policlinico - V. Emanuele, 95123 Catania, Italy.
- Department of Surgery, Medical and Surgical Specialities, University of Catania, 95123 Catania, Italy.
| | - Livia Manzella
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Center of Experimental Oncology and Hematology, A.O.U. Policlinico Vittorio Emanuele, 95123 Catania, Italy.
| | - Paolo Vigneri
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
- Center of Experimental Oncology and Hematology, A.O.U. Policlinico Vittorio Emanuele, 95123 Catania, Italy.
| | - Fabio Stagno
- Division of Hematology and Bone Marrow Transplant, AOU Policlinico - V. Emanuele, 95123 Catania, Italy.
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Abstract
To investigate the association of 3- and 6-month BCR-ABL transcript levels on the international scale (BCR-ABL) and other factors with deep molecular response (DMR) achievement in chronic myeloid leukemia (CML)-chronic phase (CP) patients receiving tyrosine kinase inhibitor (TKI) therapy.We retrospectively analyzed the clinical data of 206 patients enrolled in our hospital between January 2010 and July 2018. These patients were initially diagnosed with CML-CP and received imatinib or nilotinib therapy. Early molecular response (EMR) was assessed based on BCR-ABL (IS: on the international scale) transcript level at 3 and 6 months. Potential factors impacting DMR achievement were identified using Cox proportional hazard regression models. The effects of EMR achievement on the cumulative incidence of MR4.0 were investigated via Kaplan-Meier analysis.Multivariate Cox regression analysis showed that a BCR-ABL transcript level at 3 and 6 months of TKI therapy was an independent factor for the achievement of MR4.0, which was nevertheless not related to age, gender, Sokal score, hemoglobin level, or white blood cell (WBC) count at the initial time of diagnosis. Patients achieving an EMR (EMR: 3-month BCR-ABL ≤10%, 6-month BCR-ABL <1%) were more likely to reach MR4.0 than patients failing to achieve EMR (P1 <.001, P2 <.001). Patients who had 3-month BCR-ABL ≤1% were more likely to reach MR4.0 than those who had 3-month BCR-ABL of 1% to 10% or >10% (P1 = .001, P2 <.001). Similarly, patients who had 6-month BCR-ABL ≤0.1% were more likely to achieve MR4.0 than those in the 0.1% to 1% and ≥1% groups (P1 <.001, P2 <.001). Also, a higher percentage of patients on nilotinib therapy achieved EMR compared with patients on imatinib therapy (93.3% vs 63.6% on 3-month nilotinib therapy, P = .001; 88.9% vs 59.9% on 6-month nilotinib therapy, P = .004).This study demonstrates that EMR, especially a 3-month BCR-ABL ≤1% and 6-month BCR-ABL ≤0.1%, have predictive value for DMR achievement. In addition, there is a higher percentage of patients receiving nilotinib therapy achieved EMR than that of those receiving imatinib therapy.
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Affiliation(s)
- Rui Wang
- Department of Hematology, The First Hospital of Jilin University
| | - Yue Cong
- Department of Ocular Fundus Disease, The Second Hospital of Jilin University, Changchun
| | - Caili Li
- Department of Hematology, Yantai Yuhuangding Hospital, Yantai, China
| | - Chen Zhang
- Department of Hematology, The First Hospital of Jilin University
| | - Hai Lin
- Department of Hematology, The First Hospital of Jilin University
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Song HY, Noh H, Choi SY, Lee SE, Kim SH, Kee KM, Yoo HL, Lee MY, Kang KH, Suh JH, Yang SY, Jang EJ, Lee JI, Kim DW. BCR-ABL1 transcript levels at 4 weeks have prognostic significance for time-specific responses and for predicting survival in chronic-phase chronic myeloid leukemia patients treated with various tyrosine kinase inhibitors. Cancer Med 2018; 7:5107-5117. [PMID: 30171671 PMCID: PMC6198233 DOI: 10.1002/cam4.1753] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 08/03/2018] [Accepted: 08/07/2018] [Indexed: 01/28/2023] Open
Abstract
The present study aimed to assess the clinical impact of BCR‐ABL1 transcript levels determined at an earlier time point than the 3‐month early molecular response (EMR) in chronic‐phase chronic myeloid leukemia (CML‐CP) patients. BCR‐ABL1 transcript levels of CML‐CP patients (n = 258; median age, 43 [range, 18‐81] years) treated with various tyrosine kinase inhibitors (TKIs) were determined at 4 weeks (28 ± 3 days) and at every 3 months of treatment initiation. At 4 weeks, receiver operating characteristic curves revealed that cutoff values of BCR‐ABL1 transcripts for achieving major molecular responses (MMRs) by 12 and 60 months were 40.89% and 39.16%, respectively (95% CI, 0.658‐0.772 and 95% CI, 0.643‐0.758; P < 0.0001). With 40% of BCR‐ABL1 transcripts at 4 weeks (very early MR; VEMR), patients with VEMR achieved higher 3‐month EMR and 4‐week VEMR significantly associated with higher cumulative incidences of 5‐year MMR (89.1% vs 72.3%; P < 0.001) and 5‐year deep molecular response (DMR) (56.5% vs 29.4%; P = 0.001). Furthermore, event‐free survival (EFS)‐a (93.0% vs 84.8%; P = 0.068) and EFS‐b (71.1% vs 57.9%; P = 0.061) by 5 years were also marginally significant. VEMR and 3‐month EMR were achieved in 89 patients, with significantly superior outcomes. In multivariate analyses, lower leukocyte count (P = 0.008) and frontline second‐generation TKI therapy size (P < 0.001) were significantly associated with VEMR achievement, but not baseline BCR‐ABL1 level and CML duration. In conclusion, the 4‐week BCR‐ABL1 transcript levels including VEMR could be important to predict long‐term outcomes and may provide additional information about innate intrinsic sensitivity to CML among individuals.
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Affiliation(s)
- Hye-Young Song
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Hayeon Noh
- Department of Pharmacy, College of Pharmacy, Yonsei University, Incheon, Korea
| | - Soo Young Choi
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Sung-Eun Lee
- Department of Hematology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Soo-Hyun Kim
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Kyung-Mi Kee
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Hea-Lyun Yoo
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Mi-Young Lee
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Ki-Hoon Kang
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Ji-Hyung Suh
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Seon-Young Yang
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Eun-Jung Jang
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea
| | - Jangik I Lee
- Department of Pharmacy, Seoul National University Hospital, Seoul, Korea
| | - Dong-Wook Kim
- Leukemia Research Institute, The Catholic University of Korea, Seoul, Korea.,Department of Hematology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
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Eşkazan AE. Evolving treatment strategies in CML - moving from early and deep molecular responses to TKI discontinuation and treatment-free remission: is there a need for longer-term trial outcomes? Br J Clin Pharmacol 2018; 84:1635-1638. [PMID: 29862545 DOI: 10.1111/bcp.13637] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 04/30/2018] [Accepted: 05/04/2018] [Indexed: 12/25/2022] Open
Affiliation(s)
- Ahmet Emre Eşkazan
- Division of Hematology, Department of Internal Medicine, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Galimberti S, Bucelli C, Arrigoni E, Baratè C, Grassi S, Ricci F, Guerrini F, Ciabatti E, Fava C, D'Avolio A, Fontanelli G, Cambrin GR, Isidori A, Loscocco F, Caocci G, Greco M, Bocchia M, Aprile L, Gozzini A, Scappini B, Cattaneo D, Scortechini AR, La Nasa G, Bosi A, Leoni P, Danesi R, Saglio G, Visani G, Cortelezzi A, Petrini M, Iurlo A, Di Paolo A. The hOCT1 and ABCB1 polymorphisms do not influence the pharmacodynamics of nilotinib in chronic myeloid leukemia. Oncotarget 2017; 8:88021-88033. [PMID: 29152138 PMCID: PMC5675690 DOI: 10.18632/oncotarget.21406] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 08/29/2017] [Indexed: 11/25/2022] Open
Abstract
First-line nilotinib in chronic myeloid leukemia is more effective than imatinib to achieve early and deep molecular responses, despite poor tolerability or failure observed in one-third of patients. The toxicity and efficacy of tyrosine kinase inhibitors might depend on the activity of transmembrane transporters. However, the impact of transporters genes polymorphisms in nilotinib setting is still debated. We investigated the possible correlation between single nucleotide polymorphisms of hOCT1 (rs683369 [c.480C>G]) and ABCB1 (rs1128503 [c.1236C>T], rs2032582 [c.2677G>T/A], rs1045642 [c.3435C>T]) and nilotinib efficacy and toxicity in a cohort of 78 patients affected by chronic myeloid leukemia in the context of current clinical practice. The early molecular response was achieved by 81% of patients while 64% of them attained deep molecular response (median time, 26 months). The 36-month event-free survival was 86%, whereas 58% of patients experienced toxicities. Interestingly, hOCT1 and ABCB1 polymorphisms alone or in combination did not influence event-free survival or the adverse events rate. Therefore, in contrast to data obtained in patients treated with imatinib, hOCT1 and ABCB1 polymorphisms do not impact on nilotinib efficacy or toxicity. This could be relevant in the choice of the first-line therapy: patients with polymorphisms that negatively condition imatinib efficacy might thus receive nilotinib as first-line therapy.
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Affiliation(s)
- Sara Galimberti
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, Pisa, Italy
| | - Cristina Bucelli
- Oncohematology Division, IRCCS Ca' Granda, Maggiore Policlinico Hospital Foundation, University of Milan, Milano, Italy
| | - Elena Arrigoni
- Department of Clinical and Experimental Medicine, Section of Pharmacology, University of Pisa, Pisa, Italy
| | - Claudia Baratè
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, Pisa, Italy
| | - Susanna Grassi
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, Pisa, Italy.,GeNOMEC, University of Siena, Siena, Italy
| | - Federica Ricci
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, Pisa, Italy
| | - Francesca Guerrini
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, Pisa, Italy
| | - Elena Ciabatti
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, Pisa, Italy
| | - Carmen Fava
- Hematology Division, Ospedale Mauriziano, Torino, Italy
| | - Antonio D'Avolio
- Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Giulia Fontanelli
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, Pisa, Italy
| | - Giovanna Rege Cambrin
- Department of Clinical and Biological Sciences, University of Torino, AOU San Luigi Gonzaga, Torino, Italy
| | - Alessandro Isidori
- Hematology and Stem Cell Transplant Center, San Salvatore Hospital, Pesaro, Italy
| | - Federica Loscocco
- Hematology and Stem Cell Transplant Center, San Salvatore Hospital, Pesaro, Italy
| | - Giovanni Caocci
- Department of Medical Sciences, University of Cagliari, Cagliari, Italy
| | - Marianna Greco
- Department of Medical Sciences, University of Cagliari, Cagliari, Italy
| | - Monica Bocchia
- Division of Hematology, Ospedale Le Scotte, University of Siena, Siena, Italy
| | - Lara Aprile
- Division of Hematology, Ospedale Le Scotte, University of Siena, Siena, Italy
| | - Antonella Gozzini
- Division of Hematology, AOU Careggi, University of Florence, Firenze, Italy
| | - Barbara Scappini
- Division of Hematology, AOU Careggi, University of Florence, Firenze, Italy
| | - Daniele Cattaneo
- Oncohematology Division, IRCCS Ca' Granda, Maggiore Policlinico Hospital Foundation, University of Milan, Milano, Italy
| | | | - Giorgio La Nasa
- Department of Medical Sciences, University of Cagliari, Cagliari, Italy
| | - Alberto Bosi
- Division of Hematology, AOU Careggi, University of Florence, Firenze, Italy
| | - Pietro Leoni
- Division of Hematology, Marche Polytechnic University, Ancona, Italy
| | - Romano Danesi
- Department of Clinical and Experimental Medicine, Section of Pharmacology, University of Pisa, Pisa, Italy
| | | | - Giuseppe Visani
- Hematology and Stem Cell Transplant Center, San Salvatore Hospital, Pesaro, Italy
| | - Agostino Cortelezzi
- Oncohematology Division, IRCCS Ca' Granda, Maggiore Policlinico Hospital Foundation, University of Milan, Milano, Italy
| | - Mario Petrini
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, Pisa, Italy
| | - Alessandra Iurlo
- Oncohematology Division, IRCCS Ca' Granda, Maggiore Policlinico Hospital Foundation, University of Milan, Milano, Italy
| | - Antonello Di Paolo
- Department of Clinical and Experimental Medicine, Section of Pharmacology, University of Pisa, Pisa, Italy
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Abstract
INTRODUCTION With the discovery of imatinib mesylate nearly 20 years ago, tyrosine kinase inhibitors (TKIs) were found to be effective in chronic myeloid leukemia (CML). TKI therapy has since revolutionized the treatment of CML and has served as a paradigm of success for targeted drug therapy in cancer. Several new TKIs for CML have been approved over the last two decades that exhibit improved potency over imatinib and have different off-target profiles, providing options for individualized therapy selection. Areas covered: Current management of chronic phase CML, including guidance on the sequential use of imatinib and newer-generation TKIs and evolving treatment strategies such as TKI discontinuation. Relevant literature was identified by searching biomedical databases (i.e. PubMed) for primary research material. Expert commentary: Although survival outcomes have drastically improved for CML patients, treatment for CML has grown more complex with the introduction of next-generation TKIs and the advent of treatment-free remissions (TFR). Goals of therapy have shifted accordingly, with increased focus on improving quality of life, managing patient expectations and optimizing patient adherence.
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Affiliation(s)
- Ami B Patel
- a Huntsman Cancer Institute , The University of Utah , Salt Lake City , UT , USA
| | - Brandon W Wilds
- b Department of Pharmacy , The University of Florida , Orlando , FL , USA
| | - Michael W Deininger
- c Division of Hematology and Hematologic Malignancies , Huntsman Cancer Institute, The University of Utah , Salt Lake City , UT , USA
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Abstract
Multiple BCR-ABL tyrosine kinase inhibitors (TKIs) are available for the treatment of chronic myeloid leukemia in chronic phase (CML-CP), and several baseline and on-treatment predictive factors have been identified that can be used to help guide TKI selection for individual patients. In particular, early molecular response (EMR; BCR-ABL ≤10% on the International Scale at 3 months) has become an accepted benchmark for evaluating whether patients with CML-CP are responding optimally to frontline TKI therapy. Failure to achieve EMR is considered an inadequate initial response according to the National Comprehensive Cancer Network guidelines and a warning response according to the European LeukemiaNet recommendations. Here we review data supporting the importance of achieving EMR for improving patients' long-term outcomes and discuss key considerations for selecting a frontline TKI in light of these data. Because a higher proportion of patients achieve EMR with second-generation TKIs such as nilotinib and dasatinib than with imatinib, these TKIs may be preferable for many patients, particularly those with known negative prognostic factors at baseline. We also discuss other considerations for frontline TKI choice, including toxicities, cost-effectiveness, and the emerging goals of deep molecular response and treatment-free remission.
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Affiliation(s)
- Luke P Akard
- a Indiana Blood and Marrow Transplantation, Franciscan St Francis Hospital and Health Centers , Indianapolis , IN , USA
| | - Dale Bixby
- b Division of Hematology and Oncology, Department of Internal Medicine , University of Michigan Comprehensive Cancer Center , Ann Arbor , MI , USA
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