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Benchikh S, Charlène SSG, Bousfiha A, Razoki L, Aboulfaraj J, Zarouf L, Hamouchi AE, Malki A, Nassereddine S. Cytogenetic and epidemiological profile of chronic myeloid leukemia in Morocco. Ann Hematol 2024:10.1007/s00277-024-05747-3. [PMID: 38653807 DOI: 10.1007/s00277-024-05747-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 04/02/2024] [Indexed: 04/25/2024]
Abstract
Chronic myeloid leukemia (CML) is a neoplastic disease of genetic origin resulting from clonal proliferation of hematopoietic stem cells (HSCs). The reciprocal translocation t(9;22)(q34;q11) is the main chromosomal abnormality involved in this pathology, usually detected by conventional cytogenetics. This article aims to investigate the epidemiological, cytogenetic, therapeutic, and clinical characteristics of Moroccan patients with CML. This research represents the first large-scale study of CML patients in Morocco and was carried out at Institut Pasteur of Morocco. Bone marrow samples were processed for cytogenetic analysis, and karyotypes were described according to an international system of human cytogenetic nomenclature (ISCN 2016). Patients were studied according to their epidemiological characteristics, clinical information and cytogenetic results. For statistical calculations, R version 4.3.1 was used to analyze the data and calculate the statistical parameters. RStudio and Power BI were used for data visualization. The National Cancer Institute (NCI) Surveillance, Epidemiology, and End Results (SEER) method of incidence estimation was used to calculate our incidence. We received 826 patients (from 1992 to 2023) who were referred for suspected CML or who were undergoing treatment. Only 650 patients with confirmed CML were included in the study, all of whom underwent their first cytogenetic test. The median age of our patients was 45 years and the sex ratio was 1.03. At the time of diagnosis, 147 (30%) of the patients had clinical manifestations. Most patients were diagnosed in the chronic phase (94.5%). Nineteen complex variant translocations of the Philadelphia (Ph) chromosome were detected. At the time of diagnosis, 55 (11.5%) patients had ACAs, of which 30 (54.5%) were high-risk ACAs. Based on data from 174 patients treated with imatinib, the median time to complete cytogenetic response (CCyR) was 11 months, and at the last cytogenetic follow-up, 81 patients (46.6%) achieved CCyR, while 64 patients (36.8%) showed no response to treatment. Regarding adherence to European LeukemiaNet (ELN) guidelines, 58 patients (33%) were followed according to these guidelines, with optimal treatment in 8.6%, suboptimal treatment in 7% and treatment failure in 18%. The estimated incidence of chronic myeloid leukemia calculated is 0.6 cases per 100,000 in the Casablanca region. This study provides a detailed overview of CML in Morocco, highlighting important clinical, cytogenetic and therapeutic aspects despite some limitations. It also highlights the need to deepen our understanding of this complex disease for disease management in our specific context.
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Affiliation(s)
- Sara Benchikh
- Laboratory of Cytogenetics, Pasteur Institute of Morocco, Casablanca, Morocco.
- Laboratory of Physiopathology and Molecular Genetics, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco.
| | - Soro Somda Georgina Charlène
- Laboratory of Cytogenetics, Pasteur Institute of Morocco, Casablanca, Morocco
- Laboratory of Biology and Health, Faculty of Sciences Ben M'sik, Casablanca, Morocco
| | - Amale Bousfiha
- Laboratory of Physiopathology and Molecular Genetics, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco
| | - Lunda Razoki
- Laboratory of Cytogenetics, Pasteur Institute of Morocco, Casablanca, Morocco
| | - Jamila Aboulfaraj
- Laboratory of Cytogenetics, Pasteur Institute of Morocco, Casablanca, Morocco
| | - Latifa Zarouf
- Laboratory of Cytogenetics, Pasteur Institute of Morocco, Casablanca, Morocco
| | - Adil El Hamouchi
- Laboratory of Cytogenetics, Pasteur Institute of Morocco, Casablanca, Morocco
| | - Abderrahim Malki
- Laboratory of Physiopathology and Molecular Genetics, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco
| | - Sanaa Nassereddine
- Laboratory of Cytogenetics, Pasteur Institute of Morocco, Casablanca, Morocco
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Iriyama N, Iwanaga E, Kimura Y, Watanabe N, Ishikawa M, Nakayama H, Sato E, Tabayashi T, Mitsumori T, Takaku T, Nakazato T, Tokuhira M, Fujita H, Ando M, Hatta Y, Kawaguchi T. Changes in chronic myeloid leukemia treatment modalities and outcomes after introduction of second-generation tyrosine kinase inhibitors as first-line therapy: a multi-institutional retrospective study by the CML Cooperative Study Group. Int J Hematol 2024:10.1007/s12185-024-03758-4. [PMID: 38587692 DOI: 10.1007/s12185-024-03758-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 04/09/2024]
Abstract
This study investigated changes in treatment modalities and outcomes of chronic myeloid leukemia in the chronic phase (CP-CML) after the approval of second-generation tyrosine kinase inhibitors (2G-TKIs) for first-line therapy. Patients were grouped into those who underwent TKI therapy up to December 2010 (imatinib era group, n = 185) and after January 2011 (2G-TKI era group, n = 425). All patients in the imatinib era group were initially treated with imatinib, whereas patients in the 2G-TKI era group were mostly treated with dasatinib (55%) or nilotinib (36%). However, outcomes including progression-free survival, overall survival, and CML-related death (CRD) did not differ significantly between groups. When stratified by risk scores, the prognostic performance of the ELTS score was superior to that of the Sokal score. Even though both scoring systems predicted CRD in the imatinib era, only the ELTS score predicted CRD in the 2G-TKI era. Notably, the outcome of patients classified as high-risk by ELTS score was more favorable in the 2G-TKI era group than in the imatinib era group. Thus, expanding treatment options may have improved patient outcomes in CP-CML, particularly in patients classified as high-risk by ELTS score.
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Affiliation(s)
- Noriyoshi Iriyama
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi Kami-cho, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Eisaku Iwanaga
- Department of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Hospital, Kumamoto, Japan
| | - Yuta Kimura
- Department of Hematology, Japan Community Health Care Organization, Saitama Medical Center, Saitama, Japan
| | - Naoki Watanabe
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan
| | - Maho Ishikawa
- Department of Hemato-Oncology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Hitomi Nakayama
- Department of Hematology, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - Eriko Sato
- Department of Hematology, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Takayuki Tabayashi
- Department of Hematology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Toru Mitsumori
- Department of Hematology, Juntendo University Urayasu Hospital, Urayasu, Japan
| | - Tomoiku Takaku
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan
| | - Tomonori Nakazato
- Department of Hematology, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - Michihide Tokuhira
- Department of Hematology, Japan Community Health Care Organization, Saitama Medical Center, Saitama, Japan
| | - Hiroyuki Fujita
- Department of Hematology, Saiseikai Yokohama Nanbu Hospital, Yokohama, Japan
| | - Miki Ando
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan
| | - Yoshihiro Hatta
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi Kami-cho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Tatsuya Kawaguchi
- Department of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Hospital, Kumamoto, Japan
- Department of Medical Technology, Kumamoto Health Science University, Kumamoto, Japan
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Lee SJ, Lee J, Ahn A, Lee S, Hong Y, Lee GD, Song H, Song M, Shin S, Kim M, Kim Y. Analytical Performance Evaluation of a Digital Real-Time PCR for Quantifying Major BCR::ABL1 Transcripts. J Clin Lab Anal 2024; 38:e25034. [PMID: 38525919 PMCID: PMC11033343 DOI: 10.1002/jcla.25034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 02/09/2024] [Accepted: 03/09/2024] [Indexed: 03/26/2024] Open
Abstract
BACKGROUND Accurate quantification of the BCR::ABL1 transcripts is essential for measurable residual disease (MRD) monitoring in chronic myeloid leukemia (CML) after tyrosine kinase inhibitor (TKI) treatment. This study evaluated the newly developed digital real-time PCR method, Dr. PCR, as an alternative reverse transcription-PCR (qRT-PCR) for MRD detection. METHODS The performance of Dr. PCR was assessed using reference and clinical materials. Precision, linearity, and correlation with qRT-PCR were evaluated. MRD levels detected by Dr. PCR were compared with qRT-PCR, and practical advantages were investigated. RESULTS Dr. PCR detected MRD up to 0.0032%IS (MR4.5) with excellent precision and linearity and showed a strong correlation with qRT-PCR results. Notably, Dr. PCR identified higher levels of MRD in 12.7% (29/229) of patients than qRT-PCR, including six cases of MR4, which is a critical level for TKI discontinuation. Dr. PCR also allowed for sufficient ABL1 copies in all cases, while qRT-PCR necessitated multiple repeat tests in 3.5% (8/229) of cases. CONCLUSION Our study provides a body of evidence supporting the clinical application of Dr. PCR as a rapid and efficient method for assessing MRD in patients with CML under the current treatment regimen.
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Affiliation(s)
- Soo Jung Lee
- Department of Laboratory MedicineSeoul St. Mary's Hospital, College of Medicine, The Catholic University of KoreaSeoulKorea
| | - Jong‐Mi Lee
- Department of Laboratory MedicineSeoul St. Mary's Hospital, College of Medicine, The Catholic University of KoreaSeoulKorea
| | - Ari Ahn
- Department of Laboratory Medicine, Incheon St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulKorea
| | - Sung‐Eun Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulKorea
| | - Yuna Hong
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulKorea
- Department of Biomedicine & Health Sciences, Graduate SchoolThe Catholic University of KoreaSeoulKorea
| | - Gun Dong Lee
- Department of Laboratory MedicineSeoul St. Mary's Hospital, College of Medicine, The Catholic University of KoreaSeoulKorea
| | - Hyun‐Woo Song
- Bio Institute, Optolane Technologies Inc.PangyoSeong‐Nam‐SiKorea
| | - Min‐Sik Song
- Bio Institute, Optolane Technologies Inc.PangyoSeong‐Nam‐SiKorea
| | - Seung‐Shick Shin
- Bio Institute, Optolane Technologies Inc.PangyoSeong‐Nam‐SiKorea
| | - Myungshin Kim
- Department of Laboratory MedicineSeoul St. Mary's Hospital, College of Medicine, The Catholic University of KoreaSeoulKorea
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulKorea
| | - Yonggoo Kim
- Department of Laboratory MedicineSeoul St. Mary's Hospital, College of Medicine, The Catholic University of KoreaSeoulKorea
- Catholic Genetic Laboratory Center, Seoul St. Mary's Hospital, College of MedicineThe Catholic University of KoreaSeoulKorea
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Elsabagh AA, Benkhadra M, Elmakaty I, Elsayed A, Elsayed B, Elmarasi M, Abutineh M, Qasem NM, Ali E, Yassin M. Male Fertility and Fatherhood in Chronic Myeloid Leukemia: Current Understanding and Future Perspectives. Cancers (Basel) 2024; 16:791. [PMID: 38398181 PMCID: PMC10886940 DOI: 10.3390/cancers16040791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/08/2023] [Accepted: 11/16/2023] [Indexed: 02/25/2024] Open
Abstract
Chronic myeloid leukemia (CML), while traditionally a disease of the elderly, has recently risen in incidence among younger patients. Hence, fertility concerns have emerged considering the disease process and treatments, especially with the current scarce and conflicting recommendations. This review explores the impact of CML treatments including the first-line tyrosine kinase inhibitors (TKIs) and other treatments on male fertility in chronic myeloid leukemia (CML) patients. The aim of this review was to compile the available evidence on male fertility to ultimately tailor treatment plans for male CML patients for whom fertility and future chances for conception pose a concern. The data available on the conventional and newer TKIs to address fertility concerns were reviewed, particularly the potential long- and short-term effects. Also, the possible side effects on subsequent generations were a crucial focus point of this review to reach a more comprehensive CML management approach. We found and compared the evidence on TKIs approved to treat CML. We also reported the effects of hydroxyurea, interferon, and transplantation, which are considered second-line treatments. Our findings suggest that these drugs might have an undiscovered effect on fertility. More research with larger sample sizes and longer follow-up periods is essential to solidify our understanding of these effects.
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Affiliation(s)
- Ahmed Adel Elsabagh
- College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar; (I.E.); (B.E.); (M.E.)
| | - Maria Benkhadra
- National Center for Cancer Care & Research, Hamad General Hospital, Doha P.O. Box 3050, Qatar;
| | - Ibrahim Elmakaty
- College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar; (I.E.); (B.E.); (M.E.)
| | - Abdelrahman Elsayed
- College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar; (I.E.); (B.E.); (M.E.)
| | - Basant Elsayed
- College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar; (I.E.); (B.E.); (M.E.)
| | - Mohamed Elmarasi
- College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar; (I.E.); (B.E.); (M.E.)
| | - Mohammad Abutineh
- Hematology Section, Medical Oncology, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation, Doha P.O. Box 3050, Qatar (N.M.Q.)
| | - Nabeel Mohammad Qasem
- Hematology Section, Medical Oncology, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation, Doha P.O. Box 3050, Qatar (N.M.Q.)
| | - Elrazi Ali
- One Brooklyn Health, Interfaith Medical Center, Brooklyn, NY 11213, USA;
| | - Mohamed Yassin
- Hematology Section, Medical Oncology, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation, Doha P.O. Box 3050, Qatar (N.M.Q.)
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Marcé S, Méndez A, Xicoy B, Estrada N, Cabezón M, Sturla AL, García MR, Angona A, Amat P, Escribano Serrat S, Scalzulli E, Morgades M, Senín A, Hernández-Boluda JC, Ferrer-Marín F, Anguita E, Cortés M, Plensa E, Breccia M, García-Gutierrez V, Zamora L. e14a2 Transcript Favors Treatment-Free Remission in Chronic Myeloid Leukemia When Associated with Longer Treatment with Tyrosine Kinase Inhibitors and Sustained Deep Molecular Response. J Clin Med 2024; 13:779. [PMID: 38337473 PMCID: PMC10856594 DOI: 10.3390/jcm13030779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
e13a2 and e14a2 are the most frequent transcript types of the BCR::ABL1 fusion gene in chronic myeloid leukemia (CML). The current goal with tyrosine kinase inhibitors (TKI) is to achieve sustained deep molecular response (DMR) in order to discontinue TKI treatment and remain in the so-called treatment-free remission (TFR) phase, but biological factors associated with these goals are not well established. This study aimed to determine the effect of transcript type on TFR in patients receiving frontline treatment with imatinib (IM) or second-generation TKI (2G-TKI). Patients treated at least 119 months with IM presented less post-discontinuation relapse than those that discontinued IM before 119 months (p = 0.005). In addition, cases with the e14a2 transcript type treated at least 119 months with IM presented a better TFR (p = 0.024). On the other hand, the type of transcript did not affect the cytogenetic or molecular response in 2G-TKI treated patients; however, the use of 2G-TKI may be associated with higher and earlier DMR in patients with the e14a2 transcript.
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Affiliation(s)
- Sílvia Marcé
- Hematology Department, Myeloid Neoplasms Group, ICO Badalona-Hospital Germans Trias i Pujol, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain; (A.M.); (B.X.); (N.E.); (M.C.); (M.M.); (L.Z.)
| | - Aleix Méndez
- Hematology Department, Myeloid Neoplasms Group, ICO Badalona-Hospital Germans Trias i Pujol, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain; (A.M.); (B.X.); (N.E.); (M.C.); (M.M.); (L.Z.)
| | - Blanca Xicoy
- Hematology Department, Myeloid Neoplasms Group, ICO Badalona-Hospital Germans Trias i Pujol, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain; (A.M.); (B.X.); (N.E.); (M.C.); (M.M.); (L.Z.)
| | - Natalia Estrada
- Hematology Department, Myeloid Neoplasms Group, ICO Badalona-Hospital Germans Trias i Pujol, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain; (A.M.); (B.X.); (N.E.); (M.C.); (M.M.); (L.Z.)
| | - Marta Cabezón
- Hematology Department, Myeloid Neoplasms Group, ICO Badalona-Hospital Germans Trias i Pujol, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain; (A.M.); (B.X.); (N.E.); (M.C.); (M.M.); (L.Z.)
| | - Antonella Luciana Sturla
- Hematology Department, ICO Hospitalet-Hospital Duran y Reynals, 08908 Barcelona, Spain; (A.L.S.); (M.R.G.); (A.S.)
| | - Miriam Ratia García
- Hematology Department, ICO Hospitalet-Hospital Duran y Reynals, 08908 Barcelona, Spain; (A.L.S.); (M.R.G.); (A.S.)
| | - Anna Angona
- Hematology Department, ICO Girona-Hospital Josep Trueta, 17007 Girona, Spain;
| | - Paula Amat
- Hematology Department, Hospital Clínico Universitario-INCLIVA de Valencia, 46010 Valencia, Spain; (P.A.); (J.C.H.-B.)
| | - Silvia Escribano Serrat
- Hematology Department, Hospital Clínico San Carlos, IML, IdISSC, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain; (S.E.S.); (E.A.)
| | - Emilia Scalzulli
- Hematology, Department of Precision and Translational Medicine, Policlinico Umberto 1, Sapienza University, 00189 Rome, Italy; (E.S.); (M.B.)
| | - Mireia Morgades
- Hematology Department, Myeloid Neoplasms Group, ICO Badalona-Hospital Germans Trias i Pujol, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain; (A.M.); (B.X.); (N.E.); (M.C.); (M.M.); (L.Z.)
| | - Alicia Senín
- Hematology Department, ICO Hospitalet-Hospital Duran y Reynals, 08908 Barcelona, Spain; (A.L.S.); (M.R.G.); (A.S.)
| | - Juan Carlos Hernández-Boluda
- Hematology Department, Hospital Clínico Universitario-INCLIVA de Valencia, 46010 Valencia, Spain; (P.A.); (J.C.H.-B.)
| | - Francisca Ferrer-Marín
- Hematology Department, Hospital General Universitario Morales Meseguer-CIBERER, IMIB, UCAM, 30008 Múrcia, Spain;
| | - Eduardo Anguita
- Hematology Department, Hospital Clínico San Carlos, IML, IdISSC, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain; (S.E.S.); (E.A.)
| | - Montserrat Cortés
- Hematology Department, Hospital General de Granollers, 08402 Granollers, Spain;
| | - Esther Plensa
- Hematology Department, Consorci Sanitari del Maresme, Hospital de Mataró, 08301 Mataró, Spain;
| | - Massimo Breccia
- Hematology, Department of Precision and Translational Medicine, Policlinico Umberto 1, Sapienza University, 00189 Rome, Italy; (E.S.); (M.B.)
| | - Valentín García-Gutierrez
- Hematology Department, Hospital Ramón y Cajal, IRYCIS, Universidad de Alcalalá Madrid, 28801 Madrid, Spain;
| | - Lurdes Zamora
- Hematology Department, Myeloid Neoplasms Group, ICO Badalona-Hospital Germans Trias i Pujol, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain; (A.M.); (B.X.); (N.E.); (M.C.); (M.M.); (L.Z.)
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Kantarjian HM, Jabbour EJ, Lipton JH, Castagnetti F, Brümmendorf TH. A Review of the Therapeutic Role of Bosutinib in Chronic Myeloid Leukemia. Clin Lymphoma Myeloma Leuk 2024:S2152-2650(24)00022-3. [PMID: 38278737 DOI: 10.1016/j.clml.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/09/2024] [Indexed: 01/28/2024]
Abstract
The development of the BCR::ABL1 tyrosine kinase inhibitors (TKIs) has transformed Philadelphia chromosome (Ph)-positive chronic myeloid leukemia (CML) from a fatal disease to an often-indolent illness that, when managed effectively, can restore a life expectancy close to that of the normal population. Bosutinib is a second-generation TKI approved for adults with Ph-positive CML in chronic phase, accelerated phase, or blast phase that is resistant or intolerant to prior therapy, and for newly diagnosed Ph-positive chronic phase CML. This review details the efficacy of bosutinib for the treatment of CML in the first- and second-line settings, as well as in third- and later-line settings for high-risk patients resistant or intolerant to at least 2 TKIs. It also outlines bosutinib studies that provide evidence for dose-optimization strategies that can be used to improve efficacy and effectively manage adverse events. The studies that provide evidence for specific patient populations benefiting particularly from bosutinib dose-optimization strategies are also discussed. The well-established, long-term side-effect profile and the potential to make dose adjustments with bosutinib make it an appropriate treatment option for patients with CML. Bosutinib has demonstrated a positive impact on health-related quality of life and an important role in the long-term treatment of patients with CML.
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Affiliation(s)
- Hagop M Kantarjian
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | - Elias J Jabbour
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Jeffrey H Lipton
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, Toronto, Canada
| | - Fausto Castagnetti
- Institute of Hematology 'L. and A. Seràgnoli,' IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy; Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Tim H Brümmendorf
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, RWTH Aachen University Hospital, Aachen, Germany; Center for Integrated Oncology Aachen-Bonn-Cologne-Düsseldorf (CIO ABCD), Cologne, Germany
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7
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Zhang Z, Zhou X, Zhou X, Cheng Z, Hu Y. Exploration of treatment-free remission in CML, based on molecular monitoring. Cancer Med 2023; 13:e6849. [PMID: 38133525 PMCID: PMC10807643 DOI: 10.1002/cam4.6849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/28/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Typical chronic myelogenous leukemia (CML) is a myeloproliferative neoplasm caused by t(9; 22)(q34; q11) translocation. This chromosomal translocation forms the BCR::ABL1 fusion gene. The tyrosine kinase encoded by the BCR::ABL1 is considered to be the main pathogenic diver. BCR::ABL1 is not only a therapeutic target, but also a monitoring target. Monitoring of BCR::ABL1 reveals the progression of the disease and guides the next treatment. Now for CML, the target of treatment has been focused on treatment-free remission (TFR). METHODS We conducted a literature review of current developments of treatment-free remission and molecular monitoring methods. RESULTS More effective and sensitive CML monitoring methods such as digital droplet PCR (ddPCR) and next generation sequencing (NGS) have further studied the measurable residual disease (MRD) and clonal heterogeneity, which provides strong support for the exploration of TFR. We discussed some of the factors that may be related to TFR outcomes at the molecular level, along with some monitoring strategies. CONCLUSION Currently, predictive indicators for treatment-free remission outcomes and recurrence are lacking in clinical practice. In future, treatment-free remission research should focus on combining the clinical indicators with molecular monitoring and biological markers to personalize patient conditions and guide clinicians to develop individualized treatment plans, so that more patients with CML can achieve safer and stabler treatment-free remission.
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Affiliation(s)
| | | | - Xin Zhou
- Wuhan Union HospitalWuhanHubeiChina
| | | | - Yu Hu
- Wuhan Union HospitalWuhanHubeiChina
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8
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Xu J, Ju B, Yang XD, Xiu NN, Zhao XC. Imatinib-induced severe hematological toxicity: Prolonged myelosuppression resulting from extraordinary sensitivity in an old age. EUR J INFLAMM 2023. [DOI: 10.1177/1721727x231158468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
The advent of tyrosine kinase inhibitors (TKIs) has profoundly changed the therapeutic landscape of chronic myeloid leukemia (CML) in the chronic phase (CML-CP). Imatinib is the first-generation, and the first and as yet the most widely used TKI, and the recommended dose is 400 mg/day for treating CML-CP. Most patients tolerate this treatment well, and prolonged hematological toxicities have rarely been reported. In this manuscript, we report a newly diagnosed CML-CP patient who developed prolonged myelosuppression (lasting for more than three months) following only one week of imatinib at 400 mg/day as the solitary treatment. Imatinib was discontinued, and pancytopenia persisted, with a continuous decrease in hemoglobulin levels. After restoration of autologous hematopoiesis, reintroduction of imatinib at 100 mg/day resulted in recurrent myelosuppression, and subsequent treatment with imatinib at 50 mg/day achieved good hematological homeostasis. We hypothesized that extraordinary sensitivity resulted in severe and prolonged myelosuppression.
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Affiliation(s)
- Jia Xu
- Department of Hematology, Qingdao Shi Huangdao Qu Zhongxin Yiyuan (Huangdao Central Hospital Affiliated with the Medical Group of Qingdao University), Qingdao, China
| | - Bo Ju
- Department of Hematology, Qingdao Shi Huangdao Qu Zhongxin Yiyuan (Huangdao Central Hospital Affiliated with the Medical Group of Qingdao University), Qingdao, China
| | - Xiao-Dong Yang
- Department of Hematology, Qingdao Shi Huangdao Qu Zhongxin Yiyuan (Huangdao Central Hospital Affiliated with the Medical Group of Qingdao University), Qingdao, China
| | - Nuan-Nuan Xiu
- Department of Hematology, Qingdao Shi Huangdao Qu Zhongxin Yiyuan (Huangdao Central Hospital Affiliated with the Medical Group of Qingdao University), Qingdao, China
| | - Xi-Chen Zhao
- Department of Hematology, Qingdao Shi Huangdao Qu Zhongxin Yiyuan (Huangdao Central Hospital Affiliated with the Medical Group of Qingdao University), Qingdao, China
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9
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Perusini MA, Novitzky-Basso I, Atenafu EG, Forrest D, Bence-Bruckler I, Savoie L, Keating MM, Busque L, Delage R, Xenocostas A, Liew E, Laneuville P, Paulson K, Stockley T, Lipton JH, Leber B, Kim DDH. Final report of TKI discontinuation trial with dasatinib for the second attempt of treatment-free remission after failing the first attempt with imatinib: Treatment-free Remission Accomplished by Dasatinib (TRAD) study. Br J Haematol 2023; 203:781-791. [PMID: 37697469 DOI: 10.1111/bjh.19058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 08/04/2023] [Accepted: 08/10/2023] [Indexed: 09/13/2023]
Abstract
Multiple studies have reported a significant treatment-free remission (TFR) rate of 50%-60% in patients with chronic myeloid leukaemia (CML) who discontinue tyrosine kinase inhibitor (TKI) therapy. However, the remaining half of these patients still require re-initiation of TKI therapy for leukaemia control. It remains unclear if TKI drugs should be switched for re-therapy in patients who failed the first TFR (TFR1) attempt. Our study attempted to determine whether dasatinib therapy after TFR1 failure post-imatinib discontinuation could improve the likelihood of TFR2. Of 59 patients who lost molecular response after imatinib discontinuation for TFR1, 55 patients (93.2%) were treated with dasatinib, of whom 49 (89.1%) regained MR4.5 or deeper response, with a median time of 1.85 months to achieve MR4.5. Dasatinib was discontinued in 35 patients for TFR2 attempt, of whom 26 patients (74.28%) lost MMR and 6 (17.14%) MR4. Risk factor analysis for the TFR2 after dasatinib discontinuation suggested three significant factors: (1) doubling time of BCR::ABL1 transcript following TFR1 attempt, (2) rapid regaining of molecular response following dasatinib therapy and (3) undetectable BCR::ABL1 transcript prior to TFR2 attempt. The present study showed that dasatinib does not increase the TFR2 rate in general, but a selected group of patients could benefit from this approach.
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Affiliation(s)
- Maria Agustina Perusini
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Igor Novitzky-Basso
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Hematology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Eshetu G Atenafu
- Biostatistic Department, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Donna Forrest
- Leukemia/BMT Program of British Columbia, Division of Hematology, Vancouver General Hospital, British Columbia Cancer Agency, and University of British Columbia, Vancouver, British Columbia, Canada
| | - Isabelle Bence-Bruckler
- Department of Medicine, University of Ottawa, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Lynn Savoie
- University of Calgary, Alberta Health Services, Calgary, Alberta, Canada
| | - Mary-Margaret Keating
- Queen Elizabeth II Health Sciences Centre and Dalhousie University, Halifax, Nova Scotia, Canada
| | - Lambert Busque
- Hematopoiesis and Aging Research Unit, University of Montreal, Hôpital Maisonneuve-Rosemont, Montreal, Quebec, Canada
| | - Robert Delage
- Centre Universitaire d'Hématologie et d'Oncologie de Québec, CHU de Québec, Hôpital de l'Enfant-Jésus, Quebec City, Quebec, Canada
| | - Anargyros Xenocostas
- Division of Hematology, Department of Medicine, London Health Sciences Centre, University of Western Ontario, London, Ontario, Canada
| | - Elena Liew
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Pierre Laneuville
- Division of Hematology, McGill University Health Centre, Montreal, Quebec, Canada
| | | | - Tracy Stockley
- Department of Pathology, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Jeffrey H Lipton
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Hematology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Brian Leber
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Dennis Dong Hwan Kim
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Hematology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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10
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Pizzi M, Gurrieri C, Orazi A. What’s New in the Classification, Diagnosis and Therapy of Myeloid Leukemias. Hemato 2023. [DOI: 10.3390/hemato4020011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Myeloid leukemias are a broad group of hematological disorders, characterized by heterogeneous clinical and biological features. In recent years, unprecedented genetic discoveries and clinical–biological correlations have revolutionized the field of myeloid leukemias. The most relevant changes have specifically occurred in acute myeloid leukemia (AML), chronic myelomonocytic leukemia (CMML), chronic myeloid leukemia (CML) and myeloid neoplasms (MNs) with eosinophilia. The recently published International Consensus Classification (ICC) of myeloid neoplasms has addressed these changes, providing an updated framework and revised diagnostic criteria for such entities. This is also the aim of the 5th edition of the WHO classification of hematopoietic tumors, whose preliminary version was published in 2022. Parallel to this, new therapeutic options and novel molecular targets have changed the management of many myeloid entities, including AML and CML. This review aims to address the most relevant updates in the classification and diagnosis of AML, CMML, CML and MNs with eosinophilia. The state of the art of treatment and future therapeutic options for such disorders are also discussed.
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11
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Iriyama N. Chronic myeloid leukemia: the cutting-edge evidence and things we should know. Int J Hematol 2023; 117:1-2. [PMID: 36481960 DOI: 10.1007/s12185-022-03511-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
The prognosis of patients with chronic myeloid leukemia has dramatically improved along with the progress of therapy. However, some concerns remain unresolved, and new treatment strategies have been implemented recently. In this Progress in Hematology corner, the following four issues are presented and discussed: (1) Guidelines for the treatment of chronic myeloid leukemia from the NCCN and ELN: Differences and similarities; (2) Asciminib as a third-line option in chronic myeloid leukemia; (3) Dose optimization of tyrosine kinase inhibitor therapy in chronic myeloid leukemia; and (4) Genetic landscape of chronic myeloid leukemia. All these review articles will provide critical information for hematologists and let us know things we should learn in order to treat patients with this disease adequately.
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Affiliation(s)
- Noriyoshi Iriyama
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi Kami-Cho, Itabashi-Ku, Tokyo, 173-8610, Japan.
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12
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Çiftçiler R, Akın MG, Erat Z, Eşkazan AE. A Systematic Review on Second Treatment-Free Remission (TFR) Attempt in Chronic Myeloid Leukemia (CML): Can it be Applied in Clinical Practice? Clin Lymphoma Myeloma Leuk 2023; 23:8-14. [PMID: 36344420 DOI: 10.1016/j.clml.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022]
Abstract
The prognosis and life expectancy of chronic myeloid leukemia (CML) patients have improved significantly with the launch of first tyrosine kinase inhibitor (TKI), imatinib. Maintaining at least one major molecular response in CML patients without the use of TKI is known as treatment-free remission (TFR). The safety of the first TFR (TFR1) effort has been reported by numerous studies. However, some patients relapse during TFR1. A second TFR (TFR2) can be tried again in those patients. This systematic review aims to evaluate individual patient characteristics for a TFR2, factors predicting successful TFR2, monitoring, consequences of the cessation of TKI, and studies about TFR2. We identified 5 studies related TFR2. The results showed that the first failed TKI discontinuation attempt is not an indicator of a second TKI discontinuation failure. TKIs could safely and successfully be discontinued for a second time in chronic phase CML patients despite a TFR1 failure. The most important factors for estimating TFR2 success are the speed of molecular relapse and the TKI-free duration after the first TKI discontinuation attempt. New trends in the management of CML patients are reducing the side effects of treatment, lessening the financial burden, and improving the quality of life of patients as CML has developed into a manageable chronic disease rather than an aggressive cancer. Although there are many studies and guidelines on TFR1, there are few studies on TFR2 and predictive factors. More data is still needed regarding TFR2 attempt in patients with CML.
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Affiliation(s)
- Rafiye Çiftçiler
- Division of Hematology, Department of Internal Medicine, Konya City Hospital, Konya, Turkey
| | - Mehmet G Akın
- Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Zeynep Erat
- Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - A Emre Eşkazan
- Division of Hematology, Department of Internal Medicine, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey.
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