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Cattaneo D, Bucelli C, Bellani V, Mora B, Iurlo A. Treatment-free remission as a new goal in the management of chronic myeloid leukemia: Clinical and biological aspects. Hematol Oncol 2024; 42:e3309. [PMID: 39275966 DOI: 10.1002/hon.3309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 08/22/2024] [Accepted: 08/30/2024] [Indexed: 09/16/2024]
Abstract
The therapeutic armamentarium of chronic myeloid leukemia (CML) has dramatically improved after small molecule tyrosine kinase inhibitors (TKIs) targeting BCR::ABL1 became available, with a life expectancy now close to that of the general population. Although highly effective, these drugs also have a toxicity profile that is often mild to moderate, but sometimes severe. Indeed, long-term treatment with TKIs can lead to chronic adverse events that can negatively affect patients' quality of life and can promote significant morbidity and mortality, particularly in the case of second- or third-generation TKIs. Treatment discontinuation has therefore become an emerging goal for CML patients and numerous studies have evaluated in off-TKI subjects what requirements are appropriate for an attempt at treatment-free remission (TFR). TFR eligibility is currently limited to a small population of subjects with both deep and sustained molecular responses to TKIs. For those attempting TFR, average success rates are promising, with 25%-30% of patients experiencing prolonged TFR. In case of failure to maintain sustained TFR, safety results to date are reassuring, with almost all patients responding successfully to resumption of TKIs, and advanced-phase disease progression representing a very rare event. The purpose of this review is to discuss guidelines for TKI discontinuation, clinical advances from clinical trials and real-life experiences, and describe areas of research, particularly regarding the biological factors capable of predicting the success of TFR.
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Affiliation(s)
- Daniele Cattaneo
- Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Cristina Bucelli
- Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Valentina Bellani
- Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Barbara Mora
- Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Alessandra Iurlo
- Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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Aleem A, Shaheen NA, Algahtani F, Jamal A, Alkhudair N, Alghafis M, Iqbal Z, Siti HWZ, Thomas A, Alahmari B, Salama H, Gmati G, Alzahrani M, Alhejazi A, Alfayez M, Alrajhi A, Marei MA, Alaskar A. Discontinuation of Tyrosine Kinase Inhibitor Therapy and Treatment Free Remission (TFR) in Chronic Myeloid Leukemia: Successful Achievement of TFR in More Than Two-Third of Patients in a Real-World Practice. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2024:S2152-2650(24)00310-0. [PMID: 39299826 DOI: 10.1016/j.clml.2024.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2024] [Revised: 08/13/2024] [Accepted: 08/14/2024] [Indexed: 09/22/2024]
Abstract
BACKGROUND Discontinuation of TKI therapy and treatment-free remission (TFR) have become new goals for chronic-phase chronic myeloid leukemia (CP-CML). The aim of this study was to estimate the TFR post discontinuation of TKI therapy at 3 tertiary-care centers. PATIENTS AND METHODS CP-CML patients aged ≥16 years who had an attempt to discontinue TKI therapy till June 2022, were eligible. The collected data included patients' demographics, prognostic score, type and duration of TKI therapy, response dates, relapse dates, response to re-initiation of TKI therapy, and risk factors for relapse. RESULTS Fifty-five patients (35, 63.6% females) with a median age of 40 (range 16-74) years at diagnosis discontinued therapy. Forty-eight (87.3%) patients received imatinib as first line therapy. Twenty-nine (52.7%) patients were receiving imatinib at the time of TKI-discontinuation. Median time from diagnosis to TKI discontinuation was 86 months (IQR 60;132) and median duration of TKI therapy after achieving DMR was 66 months (IQR 47;114). After a median follow up of 34 (IQR 12;68) months, 15 (27.3%) patients relapsed. Median time to relapse was 5 months (range 2-38). Most of the relapses occurred during the first 6 months except 3 (20%) patients. All the relapsed patients achieved MMR after a median of 3 (range 2-6) months after restarting TKI therapy. None of the patients progressed to advanced-phase. CONCLUSION Our experience confirms that discontinuation of TKI therapy in CP-CML patients is feasible and safe in routine clinical practice, and can achieve TFR in more than two-third of carefully selected patients.
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Affiliation(s)
- Aamer Aleem
- Department of Medicine, Division of Hematology/Oncology, College of Medicine, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia.
| | - Naila A Shaheen
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdulaziz Medical City, Ministry of the National Guard Health Affairs, Riyadh, Saudi Arabia; Saudi Society of Blood and Marrow Transplantation
| | - Farjah Algahtani
- Department of Medicine, Division of Hematology/Oncology, College of Medicine, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Jamal
- Department of Medicine, Division of Hematology/Oncology, College of Medicine, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - Nora Alkhudair
- College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mashail Alghafis
- Department of Medicine, Division of Hematology/Oncology, College of Medicine, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - Zafar Iqbal
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; Saudi Society of Blood and Marrow Transplantation; Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Ahsa, Saudi Arabia
| | - Hajar Wan Zuki Siti
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdulaziz Medical City, Ministry of the National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Abin Thomas
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; Center for Trials Research, Cardiff University, Cardiff, United Kingdom
| | - Bader Alahmari
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdulaziz Medical City, Ministry of the National Guard Health Affairs, Riyadh, Saudi Arabia; Saudi Society of Blood and Marrow Transplantation
| | - Hind Salama
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdulaziz Medical City, Ministry of the National Guard Health Affairs, Riyadh, Saudi Arabia; Saudi Society of Blood and Marrow Transplantation
| | - Giamal Gmati
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdulaziz Medical City, Ministry of the National Guard Health Affairs, Riyadh, Saudi Arabia; Saudi Society of Blood and Marrow Transplantation; Mid and South Essex NHS Foundation Trust, Broomfield Hospital, Chelmsford, United Kingdom
| | - Mohsen Alzahrani
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdulaziz Medical City, Ministry of the National Guard Health Affairs, Riyadh, Saudi Arabia; Saudi Society of Blood and Marrow Transplantation
| | - Ayman Alhejazi
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdulaziz Medical City, Ministry of the National Guard Health Affairs, Riyadh, Saudi Arabia; Saudi Society of Blood and Marrow Transplantation
| | - Mansour Alfayez
- Adult Hematology and Bone Marrow Transplant Department, Comprehensive Cancer Center, King Fahad Medical City, Riyadh, Saudi Arabia; Oncology Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Abdullah Alrajhi
- Clinical Pharmacy Department, King Fahad Medical City, Riyadh, Saudi Arabia; Department of Pharmacy Practice, College of Pharmacy, Al Faisal University, Riyadh, Saudi Arabi
| | - Mohammed A Marei
- Adult Hematology and Bone Marrow Transplant Department, Comprehensive Cancer Center, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Ahmed Alaskar
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdulaziz Medical City, Ministry of the National Guard Health Affairs, Riyadh, Saudi Arabia; Saudi Society of Blood and Marrow Transplantation; College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Ahsa, Saudi Arabia
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Murbach B, Duarte G, Palma LC, Miranda E, Duffles G, Furlin GP, Toni I, De Souza C, Binelli L, Bassan VL, de Castro FA, de Figueiredo-Pontes LL, Pagnano KBB. Kinetics of BCR::ABL1 transcript levels and molecular relapse after tyrosine kinase inhibitors discontinuation in chronic myeloid leukemia patients: preliminary results from the DES-CML study. Front Oncol 2024; 14:1393191. [PMID: 38779092 PMCID: PMC11109364 DOI: 10.3389/fonc.2024.1393191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/16/2024] [Indexed: 05/25/2024] Open
Abstract
Tyrosine kinase inhibitors (TKI) have revolutionized the treatment of patients with chronic myeloid leukemia. Patients who achieve sustained deep molecular response are eligible for treatment discontinuation. DES-CML is an ongoing, phase 2 multicentric discontinuation trial. Adult patients with CML in chronic phase with typical BCR::ABL1 transcripts, stable deep molecular response (MR4.5 IS) for two years, and no previous resistance were eligible. Patients underwent a phase of TKI dose de-escalation for six months before discontinuation. TKI was reintroduced at the previous dose if the patient lost major molecular response (MMR) at any time. This study aimed to assess the impact of BCR-ABL transcript kinetics during TKI de-escalation and discontinuation phases on treatment-free survival. So far, the study recruited 41 patients, and 38 patients discontinued therapy (4 were in the second discontinuation attempt). Eleven patients lost MMR, one during the de-escalation phase and ten after discontinuation. 24-month treatment-free survival was 66% (95% CI: 48-84%) in a median follow-up of 7 (1-30) months. No patient lost hematological response or had disease progression. A higher rate of molecular relapses occurred in patients with fluctuating BCR::ABL1 levels after the discontinuation phase (with loss of MR4.5, but no loss of MMR) (P=0.04, HR-4.86 (1.03-22.9) but not confirmed in the multivariate analysis. The longer duration of TKI treatment (P=0.03, HR-1.02, 95%CI - 1.00-1.04) and MMR (P=0.004, HR-0.95, 95%CI - 0.92-098) were independent factors of a lower relapse rate.
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Affiliation(s)
- Bruna Murbach
- Centro de Hematologia e Hemoterapia (Hemocentro-UNICAMP), Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Gislaine Duarte
- Centro de Hematologia e Hemoterapia (Hemocentro-UNICAMP), Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Leonardo Carvalho Palma
- Hematology Division, Department of Medical Images, Hematology, and Clinical Oncology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Eliana Miranda
- Centro de Hematologia e Hemoterapia (Hemocentro-UNICAMP), Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Guilherme Duffles
- Centro de Hematologia e Hemoterapia (Hemocentro-UNICAMP), Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Graziele Pavan Furlin
- Centro de Hematologia e Hemoterapia (Hemocentro-UNICAMP), Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Isabella Toni
- Centro de Hematologia e Hemoterapia (Hemocentro-UNICAMP), Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Carmino De Souza
- Centro de Hematologia e Hemoterapia (Hemocentro-UNICAMP), Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Larissa Binelli
- Hematology Division, Department of Medical Images, Hematology, and Clinical Oncology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Vitor Leonardo Bassan
- Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Fabiola Attie de Castro
- Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Lorena Lobo de Figueiredo-Pontes
- Hematology Division, Department of Medical Images, Hematology, and Clinical Oncology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Katia Borgia Barbosa Pagnano
- Centro de Hematologia e Hemoterapia (Hemocentro-UNICAMP), Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
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Hariharan R, Hood L, Price ND. A data-driven approach to improve wellness and reduce recurrence in cancer survivors. Front Oncol 2024; 14:1397008. [PMID: 38665952 PMCID: PMC11044254 DOI: 10.3389/fonc.2024.1397008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
For many cancer survivors, toxic side effects of treatment, lingering effects of the aftermath of disease and cancer recurrence adversely affect quality of life (QoL) and reduce healthspan. Data-driven approaches for quantifying and improving wellness in healthy individuals hold great promise for improving the lives of cancer survivors. The data-driven strategy will also guide personalized nutrition and exercise recommendations that may help prevent cancer recurrence and secondary malignancies in survivors.
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Affiliation(s)
- Ramkumar Hariharan
- College of Engineering, Northeastern University, Seattle, WA, United States
- Institute for Experiential Artificial Intelligence, Northeastern University, Boston, MA, United States
| | - Leroy Hood
- Institute for Systems Biology, Seattle, WA, United States
- Buck Institute for Research on Aging, Novato, CA, United States
- Phenome Health, Seattle, WA, United States
| | - Nathan D. Price
- Institute for Systems Biology, Seattle, WA, United States
- Thorne HealthTech, New York, NY, United States
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Ureshino H, Kamachi K, Kimura S. Second Treatment-Free Remission Attempt in Patients with Chronic Myeloid Leukemia. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2024; 24:e138-e141. [PMID: 38195325 DOI: 10.1016/j.clml.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/11/2024]
Abstract
Long-term survival outcomes of patients with chronic myeloid leukemia in the chronic phase are now similar to those of the general population, following the introduction of ABL1 tyrosine kinase inhibitors (TKIs). Approximately 40% to 80% of patients with chronic myeloid leukemia successfully achieved treatment-free remission after the first attempt of TKI discontinuation (TFR1), after achieving a durable deep molecular response. However, the possibility of achieving treatment-free remission after a second attempt of TKI discontinuation (TFR2) remains unclear. Therefore, we reviewed current TFR2 studies to clarify the feasibility of achieving TFR2. We identified 5 TFR2 clinical trials and 2 real-world reports. TFR2 attempt may be feasible after retreatment with imatinib, nilotinib, or dasatinib. Patients who have achieved MR4.0 or deeper durable molecular remission are eligible to enter the TFR2 phase. Imatinib is well tolerated and can be administered for consolidative treatment before the TFR2 attempt, whereas drug-related adverse effects of nilotinib or dasatinib affect their tolerability and might lead to discontinuation. Late onset relapse (> 1 year or > 2 year) was often reported, thus careful monitoring is needed.
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Affiliation(s)
- Hiroshi Ureshino
- Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan.
| | - Kazuharu Kamachi
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
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Flygt H, Söderlund S, Richter J, Saussele S, Koskenvesa P, Stenke L, Mustjoki S, Dimitrijevic A, Stentoft J, Majeed W, Roy L, Wolf D, Dreimane A, Gjertsen BT, Gedde-Dahl T, Ahlstrand E, Markevärn B, Hjorth-Hansen H, Janssen J, Olsson-Strömberg U. Treatment-free remission after a second TKI discontinuation attempt in patients with Chronic Myeloid Leukemia re-treated with dasatinib - interim results from the DAstop2 trial. Leukemia 2024; 38:781-787. [PMID: 38278960 PMCID: PMC10997502 DOI: 10.1038/s41375-024-02145-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/25/2023] [Accepted: 01/08/2024] [Indexed: 01/28/2024]
Abstract
Tyrosine kinase inhibitor (TKI) discontinuation in chronic myeloid leukemia (CML) has become part of routine care for patients with a sustained deep molecular response (DMR). Approximately 50% experience a molecular relapse upon TKI cessation. Most of them quickly regain DMR upon TKI resumption. Whether these patients can achieve a second treatment-free remission (TFR) remains unclear. DAstop2 (ClinicalTrials.gov ID: NCT03573596) is a prospective study including patients with a failed first TFR attempt re-treated with any TKI for ≥ one year. Upon entering the study, patients received the TKI dasatinib for additional two years. Patients with sustained DMR for ≥1 year qualified for a second TKI stop. Ninety-four patients were included between Oct 2017-Dec 2021. At the time of data analysis, 62 patients had attempted a 2nd stop. After a median follow-up of 27 months from 2nd stop, TFR rates were 61, 56 and 46% at 6, 12 and 24 months respectively. No progression to advanced stage disease was seen and 87% had re-achieved MR4 within a median of 3 months from TKI re-initiation. In summary, we show that a 2nd TFR attempt after dasatinib treatment is safe, feasible and TFR rates seem in the range of those reported in trials of a first TKI stop.
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Affiliation(s)
- Hjalmar Flygt
- Department of Medical Science and Division of Hematology, Uppsala University Hospital, Uppsala, Sweden.
| | - Stina Söderlund
- Department of Medical Science and Division of Hematology, Uppsala University Hospital, Uppsala, Sweden
| | - Johan Richter
- Department of Hematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Susanne Saussele
- Medical Clinic, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Perttu Koskenvesa
- Department of Hematology, Hematology Research Unit Helsinki and Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
| | - Leif Stenke
- Department of Hematology, Karolinska University Hospital and Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Satu Mustjoki
- Department of Hematology, Hematology Research Unit Helsinki and Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
- Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki, Helsinki, Finland
- ICAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | | | - Jesper Stentoft
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | - Waleed Majeed
- Department of Hemato-Oncology, Stavanger University Hospital, Stavanger, Norway
| | - Lydia Roy
- French CML group Fi-LMC, Centre Léon Bérard, Lyon, Hôpital Universitaire Henri Mondor, AP-HP, Service d'hématologie Clinique & Faculté de Santé, Université Paris Est Créteil, Créteil, France
| | - Dominik Wolf
- Department of Hematology and Oncology, Comprehensive Cancer Center Innsbruck (CCCI), Tyrolean Cancer Research Institute (TKFI), Medical University Innsbruck, Innsbruck, Austria
- Medical Clinic 3, Universitätsklinikum, Bonn, Germany
| | - Arta Dreimane
- Department of Hematology, Linköping University Hospital, Linköping, Sweden
| | - Bjørn Tore Gjertsen
- Department of Internal Medicine, Hematology Section, Haukeland University Hospital, Bergen, Norway
| | - Tobias Gedde-Dahl
- Department of Hematology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Erik Ahlstrand
- Department of Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Berit Markevärn
- Department of Hematology, Umeå University Hospital, Umeå, Sweden
| | | | - Jeroen Janssen
- Department of Hematology, Radboud University medical center, Nijmegen, The Netherlands
| | - Ulla Olsson-Strömberg
- Department of Medical Science and Division of Hematology, Uppsala University Hospital, Uppsala, Sweden
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Wu A, Liu X, Fruhstorfer C, Jiang X. Clinical Insights into Structure, Regulation, and Targeting of ABL Kinases in Human Leukemia. Int J Mol Sci 2024; 25:3307. [PMID: 38542279 PMCID: PMC10970269 DOI: 10.3390/ijms25063307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/12/2024] [Accepted: 03/13/2024] [Indexed: 04/09/2024] Open
Abstract
Chronic myeloid leukemia is a multistep, multi-lineage myeloproliferative disease that originates from a translocation event between chromosome 9 and chromosome 22 within the hematopoietic stem cell compartment. The resultant fusion protein BCR::ABL1 is a constitutively active tyrosine kinase that can phosphorylate multiple downstream signaling molecules to promote cellular survival and inhibit apoptosis. Currently, tyrosine kinase inhibitors (TKIs), which impair ABL1 kinase activity by preventing ATP entry, are widely used as a successful therapeutic in CML treatment. However, disease relapses and the emergence of resistant clones have become a critical issue for CML therapeutics. Two main reasons behind the persisting obstacles to treatment are the acquired mutations in the ABL1 kinase domain and the presence of quiescent CML leukemia stem cells (LSCs) in the bone marrow, both of which can confer resistance to TKI therapy. In this article, we systemically review the structural and molecular properties of the critical domains of BCR::ABL1 and how understanding the essential role of BCR::ABL1 kinase activity has provided a solid foundation for the successful development of molecularly targeted therapy in CML. Comparison of responses and resistance to multiple BCR::ABL1 TKIs in clinical studies and current combination treatment strategies are also extensively discussed in this article.
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MESH Headings
- Humans
- Drug Resistance, Neoplasm/genetics
- Fusion Proteins, bcr-abl
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Protein Kinase Inhibitors/pharmacology
- Protein Kinase Inhibitors/therapeutic use
- Signal Transduction
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Affiliation(s)
- Andrew Wu
- Collings Stevens Chronic Leukemia Research Laboratory, Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (A.W.); (X.L.)
- Department of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Xiaohu Liu
- Collings Stevens Chronic Leukemia Research Laboratory, Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (A.W.); (X.L.)
- Department of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Clark Fruhstorfer
- Collings Stevens Chronic Leukemia Research Laboratory, Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (A.W.); (X.L.)
| | - Xiaoyan Jiang
- Collings Stevens Chronic Leukemia Research Laboratory, Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada; (A.W.); (X.L.)
- Department of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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Chen H, Wen Y, Zeng Y, Lin L, Sun B, Zhu H, He H, Wang X, Zou W, Zheng C, Zheng L, Huang J, Pang L, Huang J, Zhang Y, Lin H, Liu Z, Zhu W, Wang Q, Zhou X, Liu X, Qu H, Liu Z, Du X, Xu N. Patient Versus Physician Perspective in the Management of Chronic Myeloid Leukemia During Treatment with Tyrosine Kinase Inhibitors. Oncol Ther 2024; 12:131-145. [PMID: 38104036 PMCID: PMC10881939 DOI: 10.1007/s40487-023-00255-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/21/2023] [Indexed: 12/19/2023] Open
Abstract
INTRODUCTION Chronic myeloid leukemia (CML) is a chronic disease with treatment-free remission (TFR) increasingly regarded as a feasible goal of treatment. However, various factors may influence adherence to international guidelines for CML management. This study aimed to compare the reporting of care between patients with CML and their treating doctors. METHODS Parallel patient and physician online surveys were conducted between September 22, 2021, and March 15, 2022, which focused on the perceptions of 1882 adult patients with CML and 305 physicians regarding tyrosine kinase inhibitor (TKI) treatment options, monitoring and toxicities, TFR, and challenges faced. RESULTS Among the enrolled patients, 69.9% received first-line imatinib treatment, 18.6% received nilotinib, and 4.7% received dasatinib. Among the patients treated with imatinib, 36.7% switched to other TKIs due to imatinib resistance/intolerance (71.1%), exploration of more potent TKIs to achieve TFR (8.9%), and treating physicians' recommendation (14.0%), with a median duration of initial treatment of 14 months [interquartile range (IQR) 6-36]. Most (91.8%) physicians agreed that the breakpoint cluster region-Abelson 1 (BCR::ABL1) transcript level should be assessed every 3 months, but only 42.7% of individuals committed to 3-monthly testing and only 17.8% strictly followed their treating physicians' recommendation. Half of the patients aimed for TFR; however, just 45.2% of physicians considered TFR as one of the top three goals for their patients. The major concern in obtaining TFR was patients' adherence. Fatigue was often distressing for patients with TKIs, while physicians were more concerned about platelet and neutrophil counts. A total of 12% and 20.8% of patients reported moderate/severe anxiety and depression, respectively, while only 53.7% of physicians had concerns about their patients' mental health. During the coronavirus disease 2019 (COVID-19) pandemic, 69.2% of patients reported a reduction in their income. Among these patients, 61.8% maintained their current treatment, while 7.3% switched to cheaper alternatives or discontinued treatment, with over 80% of these patients belonging to the low-income group. CONCLUSIONS Overcoming challenges in patient-physician communication and treatment access is key to improving disease management and quality of life, especially for patients with low income. TRIAL REGISTRATION ClinicalTrials.gov identifier NCT05092048.
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Affiliation(s)
- Hong Chen
- Department of Hematology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Da Dao North, Guangzhou, 510515, Guangdong, China
| | - Yan Wen
- Department of Hematology, Yunnan Hematology Hospital, First People' Hospital of Yunnan, Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Yun Zeng
- Department of Hematology, First Affiliated Hospital of Kunming Medical University, Hematology Research Center of Yunnan Province, Kunming, China
| | - Lie Lin
- Department of Hematology, Hainan General Hospital, Haikou, China
| | - Bihong Sun
- Department of Hematology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Hongqian Zhu
- Department of Hematology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Huiqing He
- Department of Hematology, Zhongshan People's Hospital, Zhongshan, China
| | - Xiaotao Wang
- Department of Hematology, Guilin Medical University Affiliated Hospital, Guilin, China
| | - Waiyi Zou
- Department of Hematology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Caifeng Zheng
- Department of Hematology, Shenzhen Bao An People's Hospital, Shenzhen, China
| | - Liling Zheng
- Department of Hematology, The Second People's Hospital of Guangdong Province, Guangzhou, China
| | - Jinxiong Huang
- Department of Hematology, Liuzhou People's Hospital, Liuzhou, China
| | - Liping Pang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jixian Huang
- Department of Hematology, Yue Bei People's Hospital, Shantou University Medical College, Shaoguan, China
| | - Yuming Zhang
- Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Haiqing Lin
- Department of Hematology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China
| | - Zelin Liu
- Department of Hematology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Wanshou Zhu
- Department of Hematology, Gaozhou People's Hospital, Gaozhou, China
| | - Qiang Wang
- Department of Hematology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Da Dao North, Guangzhou, 510515, Guangdong, China
| | - Xuan Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Da Dao North, Guangzhou, 510515, Guangdong, China
| | - Xiaoli Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Da Dao North, Guangzhou, 510515, Guangdong, China
| | - Hong Qu
- Department of Hematology, Panyu Central Hospital, Guangzhou, China
| | - Zhenfang Liu
- Department of Hematology, The First Affiliated Hospital of Guangxi Medical University, No. 6, Shuang Yong Road, Nanning, 530021, Guangxi, China.
| | - Xin Du
- Department of Hematology and Shenzhen Bone Marrow Transplantation Public Service Platform, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen University School of Medicine, 3002 Sungang West Road, Futian District, Shenzhen, 518035, China.
| | - Na Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Da Dao North, Guangzhou, 510515, Guangdong, China.
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9
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Shah NP, García-Gutiérrez V, Jiménez-Velasco A, Larson SM, Saussele S, Rea D, Mahon FX, Levy MY, Gómez-Casares MT, Mauro MJ, Sy O, Martin-Regueira P, Lipton JH. Treatment-free remission after dasatinib in patients with chronic myeloid leukaemia in chronic phase with deep molecular response: Final 5-year analysis of DASFREE. Br J Haematol 2023; 202:942-952. [PMID: 37246588 PMCID: PMC10524617 DOI: 10.1111/bjh.18883] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/05/2023] [Accepted: 04/27/2023] [Indexed: 05/30/2023]
Abstract
Patients with chronic myeloid leukaemia in chronic phase (CML-CP) who have a sustained deep molecular response (DMR) are eligible to discontinue treatment and attempt treatment-free remission (TFR). In the DASFREE study (ClinicalTrials.gov; NCT01850004), the 2-year TFR rate after dasatinib discontinuation was 46%; here we present the 5-year update. Patients with a stable DMR after ≥2 years of dasatinib therapy discontinued treatment and were followed for 5 years. At a minimum follow-up of 60 months, in 84 patients discontinuing dasatinib, the 5-year TFR rate was 44% (n = 37). No relapses occurred after month 39 and all evaluable patients who relapsed and restarted dasatinib (n = 46) regained a major molecular response in a median of 1.9 months. The most common adverse event during the off-treatment period was arthralgia (18%, 15/84); a total of 15 withdrawal events were reported in nine patients (11%). At the 5-year final follow-up, almost half of the patients who discontinued dasatinib after a sustained DMR maintained TFR. All evaluable patients who experienced a relapse quickly regained a DMR after restarting dasatinib, demonstrating that dasatinib discontinuation is a viable and potentially long-term option in patients with CML-CP. The safety profile is consistent with the previous report.
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Affiliation(s)
- Neil P. Shah
- UCSF School of Medicine, San Francisco, California, USA
| | - Valentín García-Gutiérrez
- Servicio Hematología y Hemoterapia, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Antonio Jiménez-Velasco
- Servicio de Hematología y Hemoterapia, Hospital Regional Universitario de Málaga, IBIMA, Málaga, Spain
| | - Sarah M. Larson
- David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Susanne Saussele
- Medizinische Fakultät Mannheim der Universität Heidelberg, Mannheim, Germany
| | - Delphine Rea
- Adult Hematology Department, Hôpital Saint-Louis, Paris, France
| | | | | | | | | | - Oumar Sy
- Bristol Myers Squibb, Princeton, New Jersey, USA
| | | | - Jeffrey H. Lipton
- Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada
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Hoosen S, Mackraj I, Rapiti N. The Success of Treatment Free Remission in Chronic Myeloid Leukaemia in Clinical Practice: A Single-Centre Retrospective Experience from South Africa. Adv Hematol 2023; 2023:2004135. [PMID: 37547186 PMCID: PMC10403330 DOI: 10.1155/2023/2004135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 07/07/2023] [Accepted: 07/15/2023] [Indexed: 08/08/2023] Open
Abstract
Introduction Chronic myeloid leukaemia (CML) management has evolved from a disease once considered to be incurable just over 2 decades ago to that of one of a "functional cure" as defined by the sustained molecular response on stopping tyrosine kinase inhibitor(TKI) therapy. The next goal of CML management has been treatment-free remission (TFR). The past 4 years have seen much international data on TFR attempts in CML in clinical practice. However, Africa as a continent has lagged behind the rest of the world, in keeping up with the latest trends in CML management, and so this study aims to address this gap by assessing the outcome of TFR in CML in a single centre in South Africa (SA). Methods We conducted a retrospective cohort study in 12 CML patients in the chronic phase to assess the success of TKI discontinuation. The patients were treated in King Edward VIII Hospital (KEH), a tertiary, academic hospital in KwaZulu-Natal, South Africa, and the study period was from June 2020 to May 2022. Patients included had to have been on TKI therapy for a minimum of 5 years and achieved a deep molecular response (DMR) for a minimum period of 3 years. Results The overall TFR cohort showed a success rate of 75% at a median follow-up of 12 months. All patients who failed TFR, defined as a loss of major molecular remission (MMR), failed within 6 months of stopping TKI therapy. All patients who failed TFR regained DMR after retreatment with TKI, with no disease progression reported. The only factor influencing the success of TFR was the total period of TKI therapy. Conclusion Despite our study having a small cohort of patients, this study demonstrated that TFR in CML is an attainable goal, even in a resource-limited setting.
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Affiliation(s)
- Siddeeq Hoosen
- University of KwaZulu-Natal, School of Laboratory Medicine and Health Sciences, Durban, South Africa
- National Health Laboratory Service, IALCH, Department of Haematology, Durban, South Africa
- King Edward VIII Hospital, Department of Clinical Haematology, Durban, South Africa
| | - Irene Mackraj
- University of KwaZulu-Natal, School of Laboratory Medicine and Health Sciences, Durban, South Africa
| | - Nadine Rapiti
- University of KwaZulu-Natal, School of Laboratory Medicine and Health Sciences, Durban, South Africa
- National Health Laboratory Service, IALCH, Department of Haematology, Durban, South Africa
- King Edward VIII Hospital, Department of Clinical Haematology, Durban, South Africa
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11
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Chen H, Zhang Y, Jiang Y, Lin L, Cheng S, Xu X, Zhang X, Lin H, Huang Z, Wang Q, Zhou X, Qu H, Liu X, Li W, Xu N. Evaluation of physician guideline adherence and areas for improvement in managing patients with chronic myeloid leukemia: a cross-sectional survey. Leuk Lymphoma 2023; 64:1458-1464. [PMID: 37282611 DOI: 10.1080/10428194.2023.2217711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/13/2023] [Accepted: 05/19/2023] [Indexed: 06/08/2023]
Abstract
The experience of a physician at a clinical center is among the critical factors in managing chronic myeloid leukemia (CML) during its treatment with tyrosine kinase inhibitors (TKIs). The authors conducted a cross-sectional questionnaire to investigate barriers to physician use of published evidence-based guidelines in CML management in a real-world setting. Among the participating physicians (N = 407), 99.8% of physicians reported that CML guidelines were useful; however, only 62.9% of physicians reported that they follow guidelines in real-time. Although 90.7% of physicians prefer second-generation TKIs as the first-line treatment, imatinib (88.2%) remains the most widely administered TKI in the first-line setting. Only 50.6% of physicians switched the treatment when patients failed to achieve early molecular response (at 3 months), whereas 70.3% of physicians switched the treatment when patients' response to TKI was inadequate at 6 months and/or 12 months. Moreover, only 43.5% of physicians considered treatment-free remission (TFR) as one of the top 3 goals for their patients. The major concern to obtain TFR was patients' adherence. This study demonstrated that CML management was generally in line with the current guidelines, but some of the details at the point of care are needed to be improved in CML.
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Affiliation(s)
- Hong Chen
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuming Zhang
- Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yirong Jiang
- Department of Hematology, Affiliated Dongguan People's Hospital, Southern Medical University (Dongguan People's Hospital), Dongguan, China
| | - LiE Lin
- Department of Hematology, Hainan General Hospital, Haikou, China
| | - Shuqin Cheng
- Department of Hematology, Panyu Central Hospital, Guangzhou, China
| | - Xiaojun Xu
- Department of Hematology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Xiong Zhang
- Department of Hematology, Maoming People's Hospital, Maoming, China
| | - Haiqing Lin
- Department of Hematology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China
| | - Zhenqian Huang
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qiang Wang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xuan Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hong Qu
- Department of Hematology, Panyu Central Hospital, Guangzhou, China
| | - Xiaoli Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Weiming Li
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Na Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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12
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Cheng F, Li Q, Cui Z, Hong M, Li W, Zhang Y. Dose optimization strategy of the tyrosine kinase inhibitors imatinib, dasatinib, and nilotinib for chronic myeloid leukemia: From clinical trials to real-life settings. Front Oncol 2023; 13:1146108. [PMID: 37091188 PMCID: PMC10113500 DOI: 10.3389/fonc.2023.1146108] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 03/23/2023] [Indexed: 04/08/2023] Open
Abstract
With the advent of tyrosine kinase inhibitors (TKIs), the treatment prospects of chronic myeloid leukemia (CML) have changed markedly. This innovation can lengthen the long-term survival of patients suffering from CML. However, long-term exposure to TKIs is accompanied by various adverse events (AEs). The latter affect the quality of life and compliance of patients with CML, and may lead to serious disease progression (and even death). Recently, increasing numbers of patients with CML have begun to pursue a dose optimization strategy. Dose optimization may be considered at all stages of the entire treatment, which includes dose reduction and discontinuation of TKIs therapy. In general, reduction of the TKI dose is considered to be an important measure to reduce AEs and improve quality of life on the premise of maintaining molecular responses. Furthermore, discontinuation of TKIs therapy has been demonstrated to be feasible and safe for about half of patients with a stable optimal response and a longer duration of TKI treatment. This review focuses mainly on the latest research of dose optimization of imatinib, dasatinib, and nilotinib in CML clinical trials and real-life settings. We consider dose reduction in newly diagnosed patients, or in optimal response, or for improving AEs, either as a prelude to treatment-free remission (TFR) or as maintenance therapy in those patients unable to discontinue TKIs therapy. In addition, we also focus on discontinuation of TKIs therapy and second attempts to achieve TFR.
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Affiliation(s)
- Fang Cheng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiang Li
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Zheng Cui
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Mei Hong
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weiming Li
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Zhang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
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13
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Dulucq S, Rigal-Huguet F, Nicolini FE, Cony-Makhoul P, Escoffre-Barbe M, Gardembas M, Legros L, Rousselot P, Liu J, Rea D, De Mas V, Hayette S, Raynaud S, Lacoste-Roussillon C, Robbesyn F, Klein E, Morisset S, Mahon FX, Etienne G. Efficacy and safety of nilotinib in chronic myeloid leukaemia patients who failed to achieve a treatment-free remission period after imatinib discontinuation: Results of the French Nilo post-STIM study. Br J Haematol 2023. [PMID: 37004981 DOI: 10.1111/bjh.18796] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 03/17/2023] [Accepted: 03/24/2023] [Indexed: 04/04/2023]
Abstract
Molecular recurrence (MRec) occurs in about half of all patients with chronic myeloid leukaemia (CML) who discontinue tyrosine kinase inhibitors (TKI) in sustained deep molecular response. A second TKI discontinuation has been attempted in some patients who regain the discontinuation criteria after resuming treatment. Nilotinib treatment affords faster and deeper molecular responses than imatinib as first-line therapy. We prospectively evaluated the efficacy and safety of nilotinib (300 mg twice daily) in chronic-phase CML patients who experienced MRec, after imatinib discontinuation and analysed the probability of TFR after a new attempt in patients treated for 2 years with sustained MR4.5 for at least 1 year. A total of 31 patients were included in the study between 2013 and 2018. Seven (23%) patients experienced serious adverse events after a median of 2 months of nilotinib treatment leading to discontinuation of treatment. One patient was excluded from the study for convenience. Among the 23 patients treated for 2 years with nilotinib, 22 maintained their molecular response for at least 1 year (median: 22 months) and stopped nilotinib. The TFR rates at 24 and 48 months after nilotinib discontinuation were 59.1% (95% confidence interval [CI]: 41.7%-83.7%) and 42.1% (95% CI: 25%-71%) respectively (NCT #01774630).
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Affiliation(s)
- Stéphanie Dulucq
- Laboratory of Hematology, University Hospital of Bordeaux, Hôpital Haut Lévêque, Pessac, France
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
| | - Françoise Rigal-Huguet
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology Department, Institut Universitaire du Cancer, CHU de Toulouse, Toulouse, France
| | - Franck E Nicolini
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- INSERM U590, Centre de Recherche de Cancérologie de Lyon, Centre Léon Bérard, Lyon, France
- Hematology Department, Centre Léon Bérard, Lyon, France
| | - Pascale Cony-Makhoul
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology Department, Centre Hospitalier Annecy-Genevois, Metz-Tessy, Pringy, France
| | - Martine Escoffre-Barbe
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology Department, CHU de Pontchaillou, Rennes, France
| | - Martine Gardembas
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology Department, CHU, Angers, France
| | - Laurence Legros
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology Department, AP-HP, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France
| | - Philippe Rousselot
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology Department, Centre Hospitalier de Versailles, Le Chesnay, France
| | - Jixing Liu
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology & Oncology Department, Centre Hospitalier de Valence, Valence, France
| | - Delphine Rea
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Adult Hematology Department, Hôpital Saint Louis, Paris, France
| | - Véronique De Mas
- Laboratory of Hematology, Institut Universitaire du Cancer, CHU de Toulouse, Toulouse, France
| | - Sandrine Hayette
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Laboratory of Hematology, Centre Hospitalier Lyon Sud, Pierre-Bénite, France
| | - Sophie Raynaud
- Laboratory of Hematology, University Hospital of Nice, Nice, France
| | - Caroline Lacoste-Roussillon
- Clinical Research and Innovation Department, Safety and Vigilance Unit, Bordeaux University Hospital, Bordeaux, France
| | - Fanny Robbesyn
- Laboratory of Hematology, University Hospital of Bordeaux, Hôpital Haut Lévêque, Pessac, France
| | - Emilie Klein
- Laboratory of Hematology, University Hospital of Bordeaux, Hôpital Haut Lévêque, Pessac, France
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
| | - Stéphane Morisset
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- INSERM U590, Centre de Recherche de Cancérologie de Lyon, Centre Léon Bérard, Lyon, France
| | - François-Xavier Mahon
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology Department, Institut Bergonié, Bordeaux, France
- Hematology Department, CHU Bordeaux, Pessac, France
| | - Gabriel Etienne
- Groupe Fi-LMC, Centre Léon Bérard, Lyon, France
- Hematology Department, Institut Bergonié, Bordeaux, France
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14
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SOHO State of the Art Updates and Next Questions | Update on Treatment-Free Remission in Chronic Myeloid Leukemia (CML). CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2023; 23:333-339. [PMID: 36934065 DOI: 10.1016/j.clml.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 02/27/2023]
Abstract
Tyrosine kinase inhibitor (TKI) discontinuation, also known as treatment-free remission (TFR) is currently one of the main goals of chronic myeloid leukemia (CML) therapy. TKI discontinuation should be considered in eligible patients for several reasons. Specifically, TKI therapy is associated with reduced quality of life, long-term side effects, and a heavy financial burden on both the patients and society. TKI discontinuation is a particularly important goal for younger patients diagnosed with CML because of the treatment's effects on their growth and development in addition to potential long-term side-effects. Numerous studies with thousands of patients have demonstrated the safety and feasibility of attempting TKI discontinuation in a select group of patients who have achieved a sustained deep molecular remission. With current TKIs, approximately 50% of patients will be eligible for attempting TFR of which only 50% will achieve a successful TFR. Therefore, in reality, only 20% of patients with newly diagnosed CML will achieve a successful TFR, and the majority of patients will need to continue TKI therapy indefinitely. However, several ongoing clinical trials are investigating treatment options for patients to achieve deeper remission with the ultimate goal of a cure, which is defined as being off drug with no evidence of disease.
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15
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Chen Y, Zhao H, Guo J, Zou J, He W, Han D, Cheng F, Zhang Y, Li W. Successful treatment discontinuation in CML patients with full-dose and low-dose TKI: Results from real-world practice. Front Pharmacol 2023; 14:1101743. [PMID: 36755944 PMCID: PMC9899816 DOI: 10.3389/fphar.2023.1101743] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/09/2023] [Indexed: 01/24/2023] Open
Abstract
Background: In clinical studies, some patients who achieve deep molecular response (DMR) can successfully discontinue tyrosine kinase inhibitor (TKI). TKI dose reduction is also an important aspect of alleviating adverse effects and improving quality of life. This study aimed to explore the outcome after drug withdrawal in Chinese CML patients. Methods: We conducted a retrospective analysis of the outcome of 190 patients who stopped TKI. 27 patients experienced dose reduction before TKI discontinuation. The median duration of TKI treatment and MR4 before discontinuation was 82 months and 61 months. Results: With median follow-up after stopping TKI treatment of 17 months, the estimated TFR (Treatment Free Remission) were 76.9% (95%CI, 70.2%-82.4%), 68.8% (95%CI, 61.3%-75.2%), and 65.5% (95%CI, 57.4%-72.5%) at 6, 12 and 24 months. For full-dose and low-dose TKI groups, the TFR at 24 months was 66.7% and 55.8% (p = 0.320, log-rank). Most patients (56/57) quickly achieved MMR after restarting TKI treatment. Multivariable analysis showed that patients with TKI resistance had a higher risk of molecular relapse than patients without TKI resistance (p < 0.001). Conclusion: TFR rates were not impaired in patients experiencing dose reduction before TKI discontinuation compared to patients with full-dose TKI. Our data on Chinese population may provide a basis for the safety and feasibility of TKI discontinuation, including discontinuation after dose reduction, in clinical practice.
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Affiliation(s)
- Yilin Chen
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Huifang Zhao
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jingming Guo
- Department of Hematology, Yichang Central People’s Hospital & First Clinical Medical College of China Three Gorges University, Yichang, Hubei, China
| | - Jing Zou
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenjuan He
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Danlei Han
- Department of Hematology, Yichang Central People’s Hospital & First Clinical Medical College of China Three Gorges University, Yichang, Hubei, China
| | - Fanjun Cheng
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China,*Correspondence: Yanli Zhang, ; Weiming Li, ; Fanjun Cheng,
| | - Yanli Zhang
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China,*Correspondence: Yanli Zhang, ; Weiming Li, ; Fanjun Cheng,
| | - Weiming Li
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China,*Correspondence: Yanli Zhang, ; Weiming Li, ; Fanjun Cheng,
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16
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Vráblová L, Divoký V, Kořalková P, Poláková KM, Kriegová E, Janská R, Grohmann J, Holzerová M, Papajík T, Faber E. Deep Molecular Response Achieved with Chemotherapy, Dasatinib and Interferon α in Patients with Lymphoid Blast Crisis of Chronic Myeloid Leukaemia. Int J Mol Sci 2023; 24:ijms24032050. [PMID: 36768374 PMCID: PMC9916434 DOI: 10.3390/ijms24032050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/14/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
The treatment outcome in patients with chronic myeloid leukaemia (CML) in blast crisis (BC) is unsatisfactory despite the use of allogeneic stem cell transplantation (ASCT). Moreover, in some patients ASCT is contraindicated, with limited treatment options. We report the case series of two patients with lymphoid BC CML in whom ASCT was not approachable. The first patient developed BC two months after diagnosis in association with dic(7;9)(p11.2;p11.2) and T315I mutation. Blast crisis with central nervous system leukemic involvement and K611N mutation of the SETD2 gene developed abruptly in the second patient five years after ceasing treatment with nilotinib in major molecular response (MMR) at the patient's request. Both underwent one course of chemotherapy in combination with rituximab and imatinib, followed by dasatinib and interferon α (INFα) treatment in the first and dasatinib alone in the second case. Deep molecular response (DMR; MR 4.0) was achieved within a short time in both cases. It is probable that DMR was caused by a specific immune response to CML cells, described in both agents. The challenging medical condition that prompted these case series, and the subsequent results, suggest a re-visit to the use of a combination of well-known drugs as an area for further investigation.
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Affiliation(s)
- Lucia Vráblová
- Department of Haemato-Oncology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
- Correspondence: (L.V.); (E.F.); Tel.: +421-739602503 (L.V.); +421-721096619 (E.F.)
| | - Vladimír Divoký
- Department of Biology, Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
| | - Pavla Kořalková
- Department of Biology, Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
| | | | - Eva Kriegová
- Department of Immunology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
| | - Romana Janská
- Department of Haemato-Oncology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
| | - Jan Grohmann
- Department of Haemato-Oncology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
| | - Milena Holzerová
- Department of Haemato-Oncology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
| | - Tomáš Papajík
- Department of Haemato-Oncology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
| | - Edgar Faber
- Department of Haemato-Oncology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University, 779 00 Olomouc, Czech Republic
- Correspondence: (L.V.); (E.F.); Tel.: +421-739602503 (L.V.); +421-721096619 (E.F.)
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17
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Rudich A, Garzon R, Dorrance A. Non-Coding RNAs Are Implicit in Chronic Myeloid Leukemia Therapy Resistance. Int J Mol Sci 2022; 23:ijms232012271. [PMID: 36293127 PMCID: PMC9603161 DOI: 10.3390/ijms232012271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/11/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022] Open
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm initiated by the presence of the fusion gene BCR::ABL1. The development of tyrosine kinase inhibitors (TKIs) highly specific to p210BCR-ABL1, the constitutively active tyrosine kinase encoded by BCR::ABL1, has greatly improved the prognosis for CML patients. Now, the survival rate of CML nearly parallels that of age matched controls. However, therapy resistance remains a persistent problem in the pursuit of a cure. TKI resistance can be attributed to both BCR::ABL1 dependent and independent mechanisms. Recently, the role of non-coding RNAs (ncRNAs) has been increasingly explored due to their frequent dysregulation in a variety of malignancies. Specifically, microRNAs (miRNAs), circular RNAs (circRNAs), and long non-coding RNAs (lncRNAs) have been shown to contribute to the development and progression of therapy resistance in CML. Since each ncRNA exhibits multiple functions and is capable of controlling gene expression, they exert their effect on CML resistance through a diverse set of mechanisms and pathways. In most cases ncRNAs with tumor suppressing functions are silenced in CML, while those with oncogenic properties are overexpressed. Here, we discuss the relevance of many aberrantly expressed ncRNAs and their effect on therapy resistance in CML.
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MESH Headings
- Humans
- Fusion Proteins, bcr-abl
- RNA, Circular
- RNA, Long Noncoding/genetics
- Protein Kinase Inhibitors/pharmacology
- Protein Kinase Inhibitors/therapeutic use
- Drug Resistance, Neoplasm/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- MicroRNAs/genetics
- MicroRNAs/pharmacology
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18
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García-Gutiérrez V, Breccia M, Jabbour E, Mauro M, Cortes JE. A clinician perspective on the treatment of chronic myeloid leukemia in the chronic phase. J Hematol Oncol 2022; 15:90. [PMID: 35818053 PMCID: PMC9272596 DOI: 10.1186/s13045-022-01309-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/02/2022] [Indexed: 11/10/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) have vastly improved long-term outcomes for patients with chronic myeloid leukemia (CML). After imatinib (a first-generation TKI), second- and third-generation TKIs were developed. With five TKIs (imatinib, dasatinib, bosutinib, nilotinib, and ponatinib) targeting BCR::ABL approved in most countries, and with the recent approval of asciminib in the USA, treatment decisions are complex and require assessment of patient-specific factors. Optimal treatment strategies for CML continue to evolve, with an increased focus on achieving deep molecular responses. Using clinically relevant case studies developed by the authors of this review, we discuss three major scenarios from the perspective of international experts. Firstly, this review explores patient-specific characteristics that affect decision-making between first- and second-generation TKIs upon initial diagnosis of CML, including patient comorbidities. Secondly, a thorough assessment of therapeutic options in the event of first-line treatment failure (as defined by National Comprehensive Cancer Network and European LeukemiaNet guidelines) is discussed along with real-world considerations for monitoring optimal responses to TKI therapy. Thirdly, this review illustrates the considerations and importance of achieving treatment-free remission as a treatment goal. Due to the timing of the writing, this review addresses global challenges commonly faced by hematologists treating patients with CML during the COVID-19 pandemic. Lastly, as new treatment approaches continue to be explored in CML, this review also discusses the advent of newer therapies such as asciminib. This article may be a useful reference for physicians treating patients with CML with second-generation TKIs and, as it is focused on the physicians' international and personal experiences, may give insight into alternative approaches not previously considered.
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Affiliation(s)
- Valentin García-Gutiérrez
- Servicio Hematología y Hemoterapia, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Massimo Breccia
- Department of Translational and Precision Medicine, Sapienza University, Rome, Italy
| | - Elias Jabbour
- The University of Texas MD Anderson Cancer Center, Houston, TX USA
| | - Michael Mauro
- Memorial Sloan Kettering Cancer Center, New York, NY USA
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19
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Pettit K, Rezazadeh A, Atallah EL, Radich J. Management of Myeloproliferative Neoplasms in the Molecular Era: From Research to Practice. Am Soc Clin Oncol Educ Book 2022; 42:1-19. [PMID: 35658498 DOI: 10.1200/edbk_349615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The 1960 discovery of the Philadelphia chromosome in chronic myeloid leukemia (CML) marked the beginning of the modern genomic era of oncology. In the following years, the molecular underpinnings of CML were unraveled, culminating in the development of the first molecularly targeted therapy: imatinib. Imatinib revolutionized CML management, inducing deep molecular responses for most patients and aligning survival curves with those of age-matched control participants. Five additional tyrosine kinase inhibitors are now approved for CML: dasatinib, nilotinib, bosutinib, ponatinib, and asciminib (approved October 2021). The 2005 discovery of JAK2 mutations in myelofibrosis (MF) sparked enthusiasm that molecularly targeted therapies could have a similar impact in that disease. Three JAK inhibitors are now available for MF: ruxolitinib, fedratinib, and pacritinib (approved February 2022). JAK inhibitors are helpful for improving symptoms and splenomegaly but still only scratch the surface of MF pathophysiology. Clinical research testing novel agents, next-generation JAK inhibitors, and combinations of JAK inhibitors plus novel agents is moving at a tremendous pace in the hope that outcomes for patients with MF may mirror those with CML one day. This review provides an update on the status of clinical care and research for MF and addresses ongoing issues related to CML management.
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Affiliation(s)
| | | | | | - Jerald Radich
- Global Oncology Program and Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
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20
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Dulucq S, Nicolini FE, Rea D, Cony-Makhoul P, Charbonnier A, Escoffre-Barbe M, Coiteux V, Lenain P, Rigal-Huguet F, Liu J, Guerci-Bresler A, Legros L, Ianotto JC, Gardembas M, Turlure P, Dubruille V, Rousselot P, Martiniuc J, Jardel H, Johnson-Ansah H, Joly B, Henni T, Cayssials E, Zunic P, Berger MG, Villemagne B, Robbesyn F, Morisset S, Mahon FX, Etienne G. Kinetics of early and late molecular recurrences after first-line imatinib cessation in chronic myeloid leukemia: updated results from the STIM2 trial. Haematologica 2022; 107:2859-2869. [PMID: 35615931 PMCID: PMC9713567 DOI: 10.3324/haematol.2022.280811] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Indexed: 12/14/2022] Open
Abstract
Discontinuation of tyrosine kinase inhibitors in chronic phase chronic myeloid leukemia is feasible in clinical practice based on recently published international recommendations. Nevertheless, factors predictive of molecular recurrence have not been fully elucidated and long-term follow-up of patients enrolled in clinical studies are required in order to update knowledge on discontinuation attempts particularly in terms of the safety and durability of treatment-free remission (TFR). In the current study, we updated results from the STIM2 study in the light of the consensual criterion of molecular recurrence reported in different international recommendations. Among the 199 patients included in the perprotocol study, 108 patients lost a major molecular response. With a median follow-up of 40.8 months (5.5-111 months), the probability of treatment-free remission was 43.4% [36.3-50.4] at 5 years, 40.9% [32.8-47.3] at 7 years and 34.5% [25.6- 43.3] at 9 years. Molecular recurrence occurred between 0 to 6 months, 6 to 24 months and after 24 months in 75 patients (69%), 15 patients (14%) and 18 patients (17%), respectively. Notably, the kinetics of molecular recurrence differed significantly between these three subgroups with a median time from loss of MR4 (BCR::ABL1 IS≤0.01%) to loss of major molecular response of 1, 7 and 22 months, respectively. Predictive factors of molecular recurrence differed according to the time of occurrence of the molecular recurrence. Durations of imatinib treatment and deep molecular response as well as BCR::ABL1/ABL1 levels at cessation of tyrosine kinase inhibitor treatment, as quantified by reverse transcriptase droplet digital polymerase chain reaction, are involved in molecular recurrence occurring up to 24 months but not beyond. (ClinicalTrial. gov Identifier NCT#0134373).
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Affiliation(s)
- Stéphanie Dulucq
- Laboratory of Hematology, University Hospital of Bordeaux, Hôpital Haut Lévêque, Pessac,Groupe Fi-LMC, Centre Léon Bérard, Lyon,S. Dulucq
| | - Franck E. Nicolini
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,INSERM U1052, Centre de Recherche de Cancérologie de Lyon, Centre Léon Bérard, Lyon,Hematology Department, Centre Léon Bérard, Lyon
| | - Delphine Rea
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Adult Hematology Department, Hôpital Saint Louis, Paris
| | - Pascale Cony-Makhoul
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department & Clinical Investigation Center, Centre Hospitalier Annecy-Genevois, Metz-Tessy, Pringy
| | - Aude Charbonnier
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Institut Paoli-Calmettes, Marseilles
| | - Martine Escoffre-Barbe
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, CHU de Pontchaillou, Rennes
| | - Valérie Coiteux
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, CHU Huriez, Lille
| | - Pascal Lenain
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Institut Henri Becquerel, Rouen
| | - Françoise Rigal-Huguet
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Institut Universitaire du Cancer, CHU de Toulouse, Toulouse
| | - Jixing Liu
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology & Oncology Department, Centre Hospitalier de Valence, Valence
| | - Agnès Guerci-Bresler
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, CHRU Brabois, Nancy
| | - Laurence Legros
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Hôpital Bicêtre, Le Kremlin-Bicêtre
| | | | - Martine Gardembas
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, CHU, Angers
| | - Pascal Turlure
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, CHU Dupuytren, Limoges
| | - Viviane Dubruille
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Hôtel Dieu, Nantes
| | - Philippe Rousselot
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Centre Hospitalier de Versailles, Le Chesnay
| | - Juliana Martiniuc
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Centre Hospitalier de Saint Brieuc, Saint Brieuc
| | - Henry Jardel
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Centre Hospitalier de Bretagne, Vannes
| | - Hyacinthe Johnson-Ansah
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Institute of Normandy, CHU de la Côte de Nacre, Caën
| | - Bertrand Joly
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, CH Sud Francilien, Corbeil-Essonne
| | - Tawfiq Henni
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, CHR La Réunion
| | - Emilie Cayssials
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, CHU de Poitiers, Poitiers
| | - Patricia Zunic
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Centre Hospitalier, Saint Pierre de La Réunion
| | - Marc G. Berger
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology (Biology) Department, CHU Estaing, Clermont-Ferrand
| | - Bruno Villemagne
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Internal Medicine and Onco-hematology Department, La Roche sur Yon and
| | - Fanny Robbesyn
- Laboratory of Hematology, University Hospital of Bordeaux, Hôpital Haut Lévêque, Pessac
| | - Stephane Morisset
- INSERM U1052, Centre de Recherche de Cancérologie de Lyon, Centre Léon Bérard, Lyon
| | - François-Xavier Mahon
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Institut Bergonié, Bordeaux, France,F-XM and GE contributed equally as co-senior authors
| | - Gabriel Etienne
- Groupe Fi-LMC, Centre Léon Bérard, Lyon,Hematology Department, Institut Bergonié, Bordeaux, France,F-XM and GE contributed equally as co-senior authors
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21
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Benchikh S, Bousfiha A, El Hamouchi A, Soro SGC, Malki A, Nassereddine S. Chronic myeloid leukemia: cytogenetics and molecular biology’s part in the comprehension and management of the pathology and treatment evolution. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2022. [DOI: 10.1186/s43042-022-00248-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Abstract
Background
Chronic myelogenous leukemia (CML) is a type of blood cancer that affects hematopoietic stem cells and is often characterized by the presence of the Philadelphia chromosome. The Philadelphia chromosome encodes for a protein with high tyrosine kinase activity which acts as a tumorigenic factor.
Main body
This review article reports an update on the pathophysiology of CML and highlights the role of cytogenetic and molecular biology in screening, diagnosis, therapeutic monitoring as well as evaluating patients’ response to treatment. Additionally, these genetic tests allow identifying additional chromosomal abnormalities (ACA) and BCR-ABL tyrosine kinase domain mutations in intolerant or resistant patients. Thus, therapeutic advances have enabled this pathology to become manageable and almost curable in its clinical course. The scientific literature search used in the synthesis of this paper was carried out in the PubMed database, and the figures were generated using online software named BioRender.
Conclusion
The role of cytogenetic and molecular biology is crucial for the diagnosis and medical monitoring of patients. In-depth knowledge of molecular mechanisms of the BCR-ABL kinase facilitated the development of new targeted therapies that have improved the vital prognosis in patients. However, the emergence of ACA and new mutations resistant to tyrosine kinase inhibitors constitutes a real challenge in the quest for adequate therapy.
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22
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Andretta E, Costa C, Longobardi C, Damiano S, Giordano A, Pagnini F, Montagnaro S, Quintiliani M, Lauritano C, Ciarcia R. Potential Approaches Versus Approved or Developing Chronic Myeloid Leukemia Therapy. Front Oncol 2022; 11:801779. [PMID: 34993151 PMCID: PMC8724906 DOI: 10.3389/fonc.2021.801779] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 11/12/2021] [Indexed: 12/22/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) have revolutionized the treatment of patients with chronic myeloid leukemia (CML). However, continued use of these inhibitors has contributed to the increase in clinical resistance and the persistence of resistant leukemic stem cells (LSCs). So, there is an urgent need to introduce additional targeted and selective therapies to eradicate quiescent LSCs, and to avoid the relapse and disease progression. Here, we focused on emerging BCR-ABL targeted and non-BCR-ABL targeted drugs employed in clinical trials and on alternative CML treatments, including antioxidants, oncolytic virus, engineered exosomes, and natural products obtained from marine organisms that could pave the way for new therapeutic approaches for CML patients.
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Affiliation(s)
- Emanuela Andretta
- Department of Veterinary Medicine and Animal Productions, University of Naples "Federico II", Naples, Italy
| | - Caterina Costa
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Consiglia Longobardi
- Department of Mental, Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Largo Madonna delle Grazie, Naples, Italy
| | - Sara Damiano
- Department of Veterinary Medicine and Animal Productions, University of Naples "Federico II", Naples, Italy
| | - Antonio Giordano
- Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, United States
| | - Francesco Pagnini
- Unit of Radiology, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Serena Montagnaro
- Department of Veterinary Medicine and Animal Productions, University of Naples "Federico II", Naples, Italy
| | | | - Chiara Lauritano
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Roberto Ciarcia
- Department of Veterinary Medicine and Animal Productions, University of Naples "Federico II", Naples, Italy
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23
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Mauro MJ. Lifelong TKI therapy: how to manage cardiovascular and other risks. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2021; 2021:113-121. [PMID: 34889360 PMCID: PMC8791114 DOI: 10.1182/hematology.2021000239] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Beginning with imatinib and now spanning 6 oral, highly active, and mostly safe agents, the development of specific targeted therapy for patients with chronic myeloid leukemia (CML) has created a new world featuring chronic maintenance chemotherapy for all treated as such, treatment-free remission, and functional cure after prolonged deep remission in a subset. As a result comes a necessary shift in focus from acute to chronic toxicity, increasing attention to patient comorbidities, and critical thinking around specific adverse events such as metabolic, cardiovascular, and cardiopulmonary effects, which vary from agent to agent. This review aims to pull together the state of the art of managing the "C" in CML-a chronic myeloproliferative neoplasm treated at present over many years with oral BCR-ABL-targeted agents in a population whose overall health can be complex and potentially affected by disease and therapy-and determine how we can better manage a highly treatable and increasingly curable cancer.
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Affiliation(s)
- Michael J. Mauro
- Correspondence Michael J. Mauro, Memorial Sloan Kettering Cancer Center, 1275 York Ave, Box 489, New York, NY 10065; e-mail:
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24
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Castagnetti F, Binotto G, Capodanno I, Billio A, Calistri E, Cavazzini F, Crugnola M, Gozzini A, Gugliotta G, Krampera M, Lucchesi A, Merli A, Miggiano MC, Minotto C, Poggiaspalla M, Salvucci M, Scappini B, Tiribelli M, Trabacchi E, Rosti G, Galimberti S, Bonifacio M. Making Treatment-Free Remission (TFR) Easier in Chronic Myeloid Leukemia: Fact-Checking and Practical Management Tools. Target Oncol 2021; 16:823-838. [PMID: 34661826 PMCID: PMC8613078 DOI: 10.1007/s11523-021-00831-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2021] [Indexed: 11/24/2022]
Abstract
In chronic-phase chronic myeloid leukemia (CML), tyrosine kinase inhibitors (TKIs) are the standard of care, and treatment-free remission (TFR) following the achievement of a stable deep molecular response (DMR) has become, alongside survival, a primary goal for virtually all patients. The GIMEMA CML working party recently suggested that the possibility of achieving TFR cannot be denied to any patient, and proposed specific treatment policies according to the patient's age and risk. However, other international recommendations (including 2020 ELN recommendations) are more focused on survival and provide less detailed suggestions on how to choose first and subsequent lines of treatment. Consequently, some grey areas remain. After literature review, a panel of Italian experts discussed the following controversial issues: (1) early prediction of DMR and TFR: female sex, non-high disease risk score, e14a2 transcript and early MR achievement have been associated with stable DMR, but the lack of these criteria is not sufficient to exclude any patient from TFR; (2) criteria for first and subsequent line therapy choice: a number of patient and drug characteristics have been proposed to make a personalized decision; (3) monitoring of residual disease after discontinuation: after the first 6 months, the frequency of molecular tests can be reduced based on MR4.5 persistence and short turnaround time; (4) prognosis of TFR: therapy and DMR duration are important to predict TFR; although immunological control of CML plays a role, no immunological predictive phenotype is currently available. This guidance is intended as a practical tool to support physicians in decision making.
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Affiliation(s)
- Fausto Castagnetti
- Istituto di Ematologia "Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, Bologna, Italy.
| | - Gianni Binotto
- Hematology and Clinical Immunology Unit, University of Padua, Padua, Italy
| | - Isabella Capodanno
- Hematology Unit, Azienda Unità Sanitaria Locale-IRCCS, Reggio Emilia, Italy
| | - Atto Billio
- Hematology and Bone Marrow Transplantation, Ospedale di Bolzano, Bolzano, Italy
| | | | | | - Monica Crugnola
- Hematology Unit and BMT, Azienda Ospedaliero Universitaria, Parma, Italy
| | - Antonella Gozzini
- Department of Cellular Therapies and Transfusion Medicine, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Gabriele Gugliotta
- Istituto di Ematologia "Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Mauro Krampera
- Section of Hematology and Bone Marrow Transplant Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Alessandro Lucchesi
- Hematology Unit, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Anna Merli
- Hematology Unit, Ospedale Infermi Rimini, AUSL Romagna, Rimini, Italy
| | | | - Claudia Minotto
- Medical Oncology and Onco-Hematology Unit, AULSS 3 Serenissima distretto di Dolo-Mirano, Venice, Italy
| | - Monica Poggiaspalla
- Hematology Unit, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Marzia Salvucci
- Hematology Unit, Oncology and Hematology Department, Ospedale Civico, Ravenna, Italy
| | - Barbara Scappini
- Hematology Unit, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Mario Tiribelli
- Division of Hematology and BMT, Department of Medical Area, University of Udine, Udine, Italy
| | - Elena Trabacchi
- Hematology Unit and BMT Center, Ospedale G. Saliceto, Piacenza, Italy
| | - Gianantonio Rosti
- Scientific Direction, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, FC, Italy
| | - Sara Galimberti
- Section of Hematology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Massimiliano Bonifacio
- Section of Hematology and Bone Marrow Transplant Unit, Department of Medicine, University of Verona, Verona, Italy
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25
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Chen Y, Zou J, Cheng F, Li W. Treatment-Free Remission in Chronic Myeloid Leukemia and New Approaches by Targeting Leukemia Stem Cells. Front Oncol 2021; 11:769730. [PMID: 34778088 PMCID: PMC8581243 DOI: 10.3389/fonc.2021.769730] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/11/2021] [Indexed: 12/11/2022] Open
Abstract
The therapeutic landscape for chronic myeloid leukemia (CML) has improved significantly with the approval of tyrosine kinase inhibitors (TKIs) for therapeutic use. Most patients with optimal responses to TKIs can have a normal life expectancy. Treatment-free remission (TFR) after discontinuing TKI has increasingly become a new goal for CML treatment. However, TKI only "control" CML, and relapse after discontinuation has become a key factor hindering patient access to attempt TFR. In this study, we reviewed studies on TKI discontinuation, including both first and second-generation TKI. We also reviewed predictors of relapse, new monitoring methods, and strategies targeting leukemic stem cells.
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Affiliation(s)
| | | | | | - Weiming Li
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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26
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Abstract
Purpose of Review Treatment-free remission (TFR) is considered one of the main goals of therapy in patients with CML. Our goal in this paper is to review the current data on TFR, and discuss future directions. Recent Findings Multiple studies have demonstrated that attempting a treatment-free remission is safe and effective in a select group of patients. More recent data suggested that undetectable BCR-ABL1 by digital PCR prior to discontinuation is highly predictive of successful TFR. However, some patients have a successful TFR with no evidence of clinical disease despite persistent detectable BCR-ABL1. Some recent studies have shed some more light on possible mechanisms for this phenomena. Some possible mechanisms include immune mechanism, BCR-ABL1 detected in the lymphoid component only, or stem cell exhaustion. Summary TFR should be discussed with patients with CML. Patients who achieve a sustained deep molecular response may be eligible to attempt TFR, however, setting expectations that overall only 20% of patients with newly diagnosed CML will achieve a successful TFR. The importance of compliance to treatment early on cannot be overemphasized. Further studies using other drugs to get patients to a deeper remission in order to be eligible for TFR attempt, or attempting a second TFR in patients who had disease recurrence after first TFR attempt, are currently underway.
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Abstract
PURPOSE OF REVIEW Despite unprecedented challenges during the preceding year, there have been a wide range of significant advances in the field of chronic myeloid leukaemia. In this review article we highlight papers reporting on some of the most important developments over the last year, both with regards to the clinical management of patients with chronic myeloid leukaemia, as well as studies that help to increase our understanding of the pathophysiology of the disease. We have performed a PubMed search to identify important papers and abstracts listed over the last year and have included additional papers published prior to this, where relevant, to provide context. RECENT FINDINGS We comment on novel biomarkers for treatment free remission as well as recent results from second generation Tyrosine Kinase Inhibitor (TKI) discontinuation studies. We discuss new techniques that are being used to assess TKI resistance as well as reviewing novel and emerging approaches to the management of resistant patients, including the use of combination therapies. SUMMARY This review highlights some of the most important research to have been reported over the last year in the field of chronic myeloid leukaemia, encompassing emerging diagnostic techniques, biomarkers and novel therapeutic options.
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Kwaśnik P, Giannopoulos K. Treatment-Free Remission-A New Aim in the Treatment of Chronic Myeloid Leukemia. J Pers Med 2021; 11:697. [PMID: 34442340 PMCID: PMC8399881 DOI: 10.3390/jpm11080697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/16/2021] [Accepted: 07/20/2021] [Indexed: 02/08/2023] Open
Abstract
Tyrosine kinases inhibitors (TKIs) revolutionized chronic myeloid leukemia (CML) treatment for many years, prolonging patients' life expectancy to be comparable to age-matched healthy individuals. According to the latest the European LeukemiaNet (ELN) recommendations, CML treatment aims to achieve long-term remission without treatment (TFR), which is feasible in more than 40% of patients. Nearly all molecular relapses occur during the first 6 months after TKI withdrawal and do not progress to clinical relapse. The mechanisms that are responsible for CML relapses remain unexplained. It is suggested that maintaining TFR is not directly related to the total disposing of the gene transcript BCR-ABL1, but it might be a result of the restoration of the immune surveillance in CML. The importance of the involvement of immunocompetent cells in the period of TKI withdrawal is also emphasized by the presence of specific symptoms in some patients with "withdrawal syndrome". The goal of this review is to analyze data from studies regarding TFRs in order to characterize the elements of the immune system of patients that might prevent CML molecular relapse. The role of modern droplet digital polymerase chain reaction (ddPCR) and next-generation sequencing (NGS) in better identification of low levels of BCR-ABL1 transcripts was also taken into consideration for refining the eligibility criteria to stop TKI therapy.
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Affiliation(s)
- Paulina Kwaśnik
- Department of Experimental Hematooncology, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Krzysztof Giannopoulos
- Department of Experimental Hematooncology, Medical University of Lublin, 20-093 Lublin, Poland;
- Department of Hematology, St John’s Cancer Center, 20-090 Lublin, Poland
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29
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Long-term treatment-free remission in patients with chronic myeloid leukemia after second-line nilotinib: ENESTop 5-year update. Leukemia 2021; 35:1631-1642. [PMID: 33980976 DOI: 10.1038/s41375-021-01260-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/13/2021] [Accepted: 04/23/2021] [Indexed: 11/08/2022]
Abstract
The ENESTop study evaluated treatment-free remission (TFR) in patients with chronic myeloid leukemia (CML) in chronic phase who had received ≥3 years of tyrosine kinase inhibitor therapy and achieved sustained deep molecular response only after switching from imatinib to nilotinib. After 1-year nilotinib consolidation, 126 patients attempted TFR. At 48 weeks (primary analysis), 57.9% (73/126) were in TFR. In the present analysis at 5 years, 42.9% (54/126) were in TFR. Since the 48-week analysis, among patients who left the TFR phase, 58% (11/19) did not have a loss of molecular response and discontinued for other reasons. Of the 59 patients who reinitiated nilotinib upon loss of major molecular response (MMR) or confirmed loss of MR4, 98.3% regained MMR, 94.9% regained MR4, and 93.2% regained MR4.5. Overall adverse event rates decreased over the 5 years of TFR. In patients reinitiating nilotinib, there was a cumulative increase in cardiovascular events with longer nilotinib exposure. No disease progression or CML-related deaths were reported. Overall, these results confirm the durability and safety of TFR for patients receiving second-line nilotinib. Cardiovascular risk should be carefully managed, particularly when reinitiating treatment after TFR.
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30
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Seguro FS, Maciel FVR, Santos FM, Abdo ANR, Pereira TDM, Nardinelli L, Rocha V, Bendit I. MR 4log and low levels of NK cells are associated with higher molecular relapse after imatinib discontinuation: Results of a prospective trial. Leuk Res 2021; 101:106516. [PMID: 33517185 DOI: 10.1016/j.leukres.2021.106516] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Treatment-free survival (TFS) in chronic myeloid leukemia (CML) is a new goal. This prospective study aims to evaluate imatinib discontinuation's feasibility and safety in patients with deep molecular response MR4 (BCR-ABL1 < 0.01 % IS). METHODS Study was approved by the ethical committee and registered at Clinicaltrials.gov (NCT03239886). Incluision criteria were: age ≥ 18y, chronic phase, first-line imatinib for 36 months, MR4 for 12 months, no previous transplant or resistance. Imatinib was resumed when two samples confirmed the loss of MMR. The primary endpoint was molecular recurrence-free survival (MRFS) at 24 months. Lymphocyte subpopulations were counted in peripheral blood before discontinuation. RESULTS 31 patients were included from Dec/2016 until Oct/2017. Median age was 54years, 58 % male, 58 % low Sokal, 65 % b3a2 transcripts, and 61 % were in MR4.5. Imatinib therapy's median time was 9.7y (3-14.9 y), median time of MR4 was 6.9y (1.6-10.3y). MRFS at 24 months was 55 % (95 % CI 39-75). Thirteen patients relapsed, 46 % after six months of discontinuation, and all patients recovered MMR. Median time to recover MMR was one month. MR4.5 was the only factor associated with MRFS. NK cells proportion at baseline was lower in patients with only MR4 who relapsed after discontinuation. CONCLUSION With a median duration of sustained MR4 above five years, as recommended by most TKI discontinuation guidelines, the TFS was similar to previous studies. Only MR4.5 was associated with lower risk of relapse. Further studies are needed to evaluate whether patients with only MR4 and low NK cell levels are suitable for discontinuation.
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Affiliation(s)
- Fernanda S Seguro
- Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil; Instituto do Câncer do Estado de São Paulo, Sao Paulo, SP, Brazil.
| | | | | | - André N R Abdo
- Instituto do Câncer do Estado de São Paulo, Sao Paulo, SP, Brazil
| | | | - Luciana Nardinelli
- Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Vanderson Rocha
- Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Israel Bendit
- Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
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31
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Richter J, Lübking A, Söderlund S, Lotfi K, Markevärn B, Själander A, Stenke L, Deneberg S, Ahlstrand E, Myhr-Eriksson K, Panayiotidis P, Gedde-Dahl T, Žáčková D, Mayer J, Olsson-Strömberg U, Mahon FX, Saussele S, Hjorth-Hansen H, Koskenvesa P. Molecular status 36 months after TKI discontinuation in CML is highly predictive for subsequent loss of MMR-final report from AFTER-SKI. Leukemia 2021; 35:2416-2418. [PMID: 33589755 PMCID: PMC8324471 DOI: 10.1038/s41375-021-01173-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/11/2021] [Accepted: 01/28/2021] [Indexed: 01/29/2023]
Affiliation(s)
- Johan Richter
- grid.411843.b0000 0004 0623 9987Department of Hematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Anna Lübking
- grid.411843.b0000 0004 0623 9987Department of Hematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Stina Söderlund
- grid.412354.50000 0001 2351 3333Department of Medical Sciences, University of Uppsala and Section of Hematology, Uppsala University Hospital, Uppsala, Sweden
| | - Kourosh Lotfi
- grid.411384.b0000 0000 9309 6304Department of Hematology, University Hospital, Linköping, Sweden
| | - Berit Markevärn
- grid.412215.10000 0004 0623 991XDepartment of Hematology, University Hospital, Umeå, Sweden
| | - Anders Själander
- grid.12650.300000 0001 1034 3451Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Leif Stenke
- grid.24381.3c0000 0000 9241 5705Department of Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Stefan Deneberg
- grid.24381.3c0000 0000 9241 5705Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Erik Ahlstrand
- grid.15895.300000 0001 0738 8966Department of Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Kristina Myhr-Eriksson
- grid.416723.50000 0004 0626 5317Department of Hematology, Sunderby Hospital, Luleå, Sweden
| | - Panayiotis Panayiotidis
- grid.5216.00000 0001 2155 0800First Department of Propedeutic Medicine, Laikon Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Tobias Gedde-Dahl
- grid.55325.340000 0004 0389 8485Oslo University Hospital, Oslo, Norway
| | - Daniela Žáčková
- grid.412554.30000 0004 0609 2751Department of Internal Medicine Hematology and Oncology, University Hospital Brno and Masaryk University, Brno, Czech Republic
| | - Jiří Mayer
- grid.412554.30000 0004 0609 2751Department of Internal Medicine Hematology and Oncology, University Hospital Brno and Masaryk University, Brno, Czech Republic
| | - Ulla Olsson-Strömberg
- grid.412354.50000 0001 2351 3333Department of Medical Sciences, University of Uppsala and Section of Hematology, Uppsala University Hospital, Uppsala, Sweden
| | - Francois-Xavier Mahon
- grid.412041.20000 0001 2106 639XLaboratoire Hématopoïèse Leucémique et cible thérapeutique, INSERM U876, Université Victor Ségalen Bordeaux 2, Bordeaux, France
| | - Susanne Saussele
- grid.7700.00000 0001 2190 4373Medizinische Universitätsklinik Mannheim, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | - Henrik Hjorth-Hansen
- grid.52522.320000 0004 0627 3560Department of Hematology, St Olavs Hospital, Trondheim, Norway
| | - Perttu Koskenvesa
- grid.15485.3d0000 0000 9950 5666Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
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32
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Atallah E, Schiffer CA. Discontinuation of tyrosine kinase inhibitors in chronic myeloid leukemia: when and for whom? Haematologica 2020; 105:2738-2745. [PMID: 33054106 PMCID: PMC7716356 DOI: 10.3324/haematol.2019.242891] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/17/2020] [Indexed: 11/09/2022] Open
Abstract
Treatment discontinuation is considered one of the main goals of therapy for patients with chronic myeloid leukemia. Several criteria are felt to be necessary to consider discontinuation, while others may predict a better chance of achieving treatment-free remission. Criteria for discontinuation include patients in chronic phase chronic myeloid leukemia, a minimum duration of tyrosine kinase inhibitor therapy of 3 years, sustained deep molecular response for at least 2 years and a molecular response of at least MR4. In addition, proper education of the patient on the need for more frequent monitoring, possible side effects related to stopping and having a reliable real-time quantitative polymerase chain reaction laboratory are paramount to the safety and success of treatment-free remission. Realistically though, a maximum of only 20-30% of newly diagnosed patients will be able to achieve a successful treatment-free remission. In this article we will review for whom and when a trial of discontinuation should be considered.
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Affiliation(s)
| | - Charles A Schiffer
- Karmanos Cancer Institute, Wayne State University School of Medicine, Milwaukee, WI.
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33
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Hehlmann R. The New ELN Recommendations for Treating CML. J Clin Med 2020; 9:E3671. [PMID: 33207600 PMCID: PMC7697560 DOI: 10.3390/jcm9113671] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 12/13/2022] Open
Abstract
After normal survival has been achieved in most patients with chronic myeloid leukemia (CML), a new goal for treating CML is survival at good quality of life, with treatment discontinuation in sustained deep molecular response (DMR; MR4 or deeper) and treatment-free remission (TFR). Four tyrosine kinase inhibitors (TKIs) have been approved for first-line therapy: imatinib, dasatinib, nilotinib, bosutinib. Unexpectedly, the outcome of long-term randomized trials has shown that faster response as achieved by higher doses of imatinib, imatinib in combination, or second-generation (2G)-TKIs, does not translate into a survival advantage. Serious and frequent, and in part cumulative long-term toxicities, have led to a reevaluation of the role of 2G-TKIs in first-line therapy. Generic imatinib is the current most cost-effective first-line therapy in the chronic phase. A change of treatment is recommended when intolerance cannot be ameliorated or molecular milestones are not reached. Patient comorbidities and contraindications of all TKIs must be considered. Risk profile at diagnosis should be assessed with the EUTOS score for long-term survival (ELTS). Monitoring of response is by polymerase chain reaction (PCR). Cytogenetics is still required in the case of atypical translocations, atypical transcripts, and additional chromosomal aberrations. TKIs are contraindicated during pregnancy. Since the majority of patients are at risk of lifelong exposure to TKIs, amelioration of chronic low-grade side effects is important.
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Affiliation(s)
- Rüdiger Hehlmann
- ELN-Foundation, Weinheim and Medical Faculty Mannheim of Heidelberg University, 69126 Mannheim, Germany
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34
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Ross DM, Hughes TP. Counterpoint: There is a best duration of deep molecular response for treatment-free remission, but it is patient-specific, and that is the challenge. Br J Haematol 2020; 192:24-27. [PMID: 33169882 DOI: 10.1111/bjh.17111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 08/25/2020] [Indexed: 12/18/2022]
Abstract
There is considerable clinical and scientific interest in identifying reliable predictors of treatment-free remission in chronic myeloid leukaemia. Most predictors have been identified from non-randomized clinical trials or retrospective cohorts that could be subject to bias. The validity of predictive factors, such as duration of treatment or of deep molecular response, has been questioned. We briefly review the relevant data and the potential for bias, arguing that the risk of bias may be overstated, and that accumulating data strongly suggest that depth and duration of molecular response are critical factors to enable us to predict the probability of treatment-free remission.
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Affiliation(s)
- David M Ross
- Precision Medicine Theme, South Australian Health & Medical Research Institute, Adelaide, Australia.,Department of Haematology, Royal Adelaide Hospital, Adelaide, Australia.,School of Medicine, University of Adelaide, Adelaide, Australia.,Flinders University and Medical Centre, Adelaide, Australia
| | - Timothy P Hughes
- Precision Medicine Theme, South Australian Health & Medical Research Institute, Adelaide, Australia.,Department of Haematology, Royal Adelaide Hospital, Adelaide, Australia.,School of Medicine, University of Adelaide, Adelaide, Australia
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