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Elmakaty I, Saglio G, Al-Khabori M, Elsayed A, Elsayed B, Elmarasi M, Elsabagh AA, Alshurafa A, Ali E, Yassin M. The Contemporary Role of Hematopoietic Stem Cell Transplantation in the Management of Chronic Myeloid Leukemia: Is It the Same in All Settings? Cancers (Basel) 2024; 16:754. [PMID: 38398145 PMCID: PMC10886670 DOI: 10.3390/cancers16040754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 02/25/2024] Open
Abstract
Hematopoietic stem cell transplantation (HSCT) for chronic myeloid leukemia (CML) patients has transitioned from the standard of care to a treatment option limited to those with unsatisfactory tyrosine kinase inhibitor (TKI) responses and advanced disease stages. In recent years, the threshold for undergoing HSCT has increased. Most CML patients now have life expectancies comparable to the general population, and therefore, the goal of therapy is shifting toward achieving treatment-free remission (TFR). While TKI discontinuation trials in CML show potential for achieving TFR, relapse risk is high, affirming allogeneic HSCT as the sole curative treatment. HSCT should be incorporated into treatment algorithms from the time of diagnosis and, in some patients, evaluated as soon as possible. In this review, we will look at some of the recent advances in HSCT, as well as its indication in the era of aiming for TFR in the presence of TKIs in CML.
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Affiliation(s)
- Ibrahim Elmakaty
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Giuseppe Saglio
- Department of Clinical and Biological Sciences, University of Turin, 10124 Turin, Italy
| | | | | | - Basant Elsayed
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Mohamed Elmarasi
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
| | | | - Awni Alshurafa
- Hematology Section, Medical Oncology, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation (HMC), Doha P.O. Box 3050, Qatar
| | - Elrazi Ali
- Interfaith Medical Center, Brooklyn, NY 11213, USA
| | - Mohamed Yassin
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
- Hematology Section, Medical Oncology, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation (HMC), Doha P.O. Box 3050, Qatar
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Short NJ, Senapati J, Jabbour E. An Update on the Management of Advanced Phase Chronic Myeloid Leukemia. Curr Hematol Malig Rep 2023; 18:234-242. [PMID: 37651057 DOI: 10.1007/s11899-023-00709-4] [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] [Accepted: 08/07/2023] [Indexed: 09/01/2023]
Abstract
PURPOSE OF REVIEW While most patients with chronic myeloid leukemia (CML) present in a chronic phase and are expected to have a normal life expectancy, some patients present with or progress to a more aggressive accelerated phase (AP) or blast phase (BP) of CML. Herein, we discuss the diagnostic considerations of advanced phase CML and review its contemporary management. RECENT FINDINGS Later-generation, more potent BCR::ABL1 tyrosine kinase inhibitors (TKIs) such as ponatinib may result in superior outcomes in patients with advanced phase CML. For CML-BP, combination approaches directed against the blast immunophenotype appear superior to TKI monotherapy. The role of allogeneic stem cell transplantation is controversial in CML-AP but has consistently been shown to improve outcomes for patients with CML-BP. Advanced phase CML, particularly CML-BP, remains a poor risk subtype of CML. However, novel combination approaches using later-generation TKIs are being explored in clinical trials and may lead to improved outcomes.
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Affiliation(s)
- Nicholas J Short
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Unit 428, 1515 Holcombe Boulevard, Houston, TX, 77030, USA.
| | - Jayastu Senapati
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Unit 428, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - Elias Jabbour
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Unit 428, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
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3
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Senapati J, Jabbour E, Kantarjian H, Short NJ. Pathogenesis and management of accelerated and blast phases of chronic myeloid leukemia. Leukemia 2023; 37:5-17. [PMID: 36309558 DOI: 10.1038/s41375-022-01736-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/11/2022] [Accepted: 10/14/2022] [Indexed: 02/01/2023]
Abstract
The treatment of chronic myeloid leukemia (CML) with tyrosine kinase inhibitors (TKIs) has been a model for cancer therapy development. Though most patients with CML have a normal quality and duration of life with TKI therapy, some patients progress to accelerated phase (AP) and blast phase (BP), both of which have a relatively poor prognosis. The rates of progression have reduced significantly from over >20% in the pre-TKI era to <5% now, largely due to refinements in CML therapy and response monitoring. Significant insights have been gained into the mechanisms of disease transformation including the role of additional cytogenetic abnormalities, somatic mutations, and other genomic alterations present at diagnosis or evolving on therapy. This knowledge is helping to optimize TKI therapy, improve prognostication and inform the development of novel combination regimens in these patients. While patients with de novo CML-AP have outcomes almost similar to CML in chronic phase (CP), those transformed from previously treated CML-CP should receive second- or third- generation TKIs and be strongly considered for allogeneic stem cell transplantation (allo-SCT). Similarly, patients with transformed CML-BP have particularly dismal outcomes with a median survival usually less than one year. Combination regimens with a potent TKI such as ponatinib followed by allo-SCT can achieve long-term survival in some transformed BP patients. Regimens including venetoclax in myeloid BP or inotuzumab ozogamicin or blinatumomab in lymphoid BP might lead to deeper and longer responses, facilitating potentially curative allo-SCT for patients with CML-BP once CP is achieved. Newer agents and novel combination therapies are further expanding the therapeutic arsenal in advanced phase CML.
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Affiliation(s)
- Jayastu Senapati
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Elias Jabbour
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hagop Kantarjian
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Nicholas J Short
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Downregulation of Stearoyl-CoA Desaturase 1 (SCD-1) Promotes Resistance to Imatinib in Chronic Myeloid Leukemia. Mediterr J Hematol Infect Dis 2023; 15:e2023008. [PMID: 36660357 PMCID: PMC9833301 DOI: 10.4084/mjhid.2023.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/21/2022] [Indexed: 01/03/2023] Open
Abstract
Chronic myeloid leukemia (CML) is a malignant hematopoietic stem cell disease resulting in the fusion of BCR and ABL genes and characterized by the presence of the reciprocal translocation t(9;22)(q34;q11). BCR-ABL, a product of the BCR-ABL fusion gene, is a structurally active tyrosine kinase and plays an important role in CML disease pathogenesis. Imatinib mesylate (IMA) is a strong and selective BCR-ABL tyrosine kinase inhibitor. Although IMA therapy is an effective treatment, patients may develop resistance to IMA therapy over time. This study investigated the possible genetic resistance mechanisms in patients developing resistance to IMA. We did DNA sequencing in order to detect BCR-ABL mutations, which are responsible for IMA resistance. Moreover, we analyzed the mRNA expression levels of genes responsible for apoptosis, such as BCL-2, P53, and other genes (SCD-1, PTEN). In a group of CML patients resistant to IMA, when compared with IMA-sensitive CML patients, a decrease in SCD-1 gene expression levels and an increase in BCL-2 gene expression levels was observed. In this case, the SCD-1 gene was thought to act as a tumor suppressor. The present study aimed to investigate the mechanisms involved in IMA resistance in CML patients and determine new targets that can be beneficial in choosing the effective treatment. Finally, the study suggests that the SCD-1 and BCL-2 genes may be mechanisms responsible for resistance.
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Fang F, Jia R, Liu C, Zhao H, Sun W. Genetic analysis and clinical significance of a rare t(1;12)(q21;p13) in a patient with high-risk myelodysplastic syndrome. Mol Genet Genomic Med 2022; 10:e1893. [PMID: 35192745 PMCID: PMC9000942 DOI: 10.1002/mgg3.1893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 01/07/2022] [Accepted: 01/25/2022] [Indexed: 11/24/2022] Open
Abstract
To explore the genetic and clinical features of a rare t(1;12)(q21;p13) in a patient with myelodysplastic syndrome (MDS). A 53‐year‐old male was diagnosed as high‐risk MDS, and died in a short period. A complete cytogenetic analysis of bone marrow by conventional G‐banding karyotyping was performed at the time of initial evaluation. On the basis of chromosome karyotype, interphase and metaphase fluorescence in‐situ hybridization (FISH) were carried out to further confirm the abnormal karyotypes. Reverse‐transcription polymerase chain reaction (RT‐PCR) was performed to determine ETV6/ARNT fusion gene status. G‐banding revealed karyotype 47, XY, +8, der(12) t(1;12)(q21;p13). FISH with the centromere 8 probe verified the trisomy 8, and the ETV 6 break‐apart probe suggested heterozygous loss of ETV6 allele located in short arm of chromosome 12. Subsequently, the painting probe of whole chromosome 12 further confirmed the part break of short arm of chromosome 12, and the 1q21/1p36 probe yielded three signals of 1q21 and two signals of 1p36. The results of FISH were in accordance with the karyotype completely. No ETV6/ARNT fusion gene was detected by PCR. T(1;12)(q21;p13) is a rare abnormal karyotype, and the limited reports cannot supply definite clinical significance. Rapid deterioration of our case suggests this translocation of chromosome might have a poor effect on the survival of MDS.
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Affiliation(s)
- Fang Fang
- Department of Hematology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Ru Jia
- Department of Hematology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Congyan Liu
- Department of Hematology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Hong Zhao
- Department of Hematology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wanling Sun
- Department of Hematology, Xuanwu Hospital, Capital Medical University, Beijing, China
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Asif M, Hussain A, Wali A, Ahmed N, Ali I, Iqbal Z, Amir M, Shafiq M, Rasool M. Molecular, Cytogenetic, and Hematological Analysis of Chronic Myeloid Leukemia Patients and Discovery of Two Novel Translocations. Anal Cell Pathol (Amst) 2021; 2021:4909012. [PMID: 34422550 PMCID: PMC8378985 DOI: 10.1155/2021/4909012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/12/2021] [Accepted: 07/26/2021] [Indexed: 11/18/2022] Open
Abstract
Chronic myeloid leukemia (CML) is a disease of hematopoietic stem cells and is caused by the balanced translocations among the long arms of chromosomes 9 and 22, which are called the Philadelphia (Ph) chromosome. In this study, 131 CML patients were enrolled. Complete blood cell count was performed at the time of diagnosis for all the patients. Cytogenetic (karyotyping) examination using bone marrow samples was conducted on 76 CML patients for the confirmation of Ph-positive (9;22)(q34;q11) standard translocation, complex variant translocation, and additional chromosome abnormalities. FISH was performed on 38 patients for diagnostic purposes and on 39 patients for monitoring purposes. Twenty-two samples of CML patients were evaluated by reverse transcriptase PCR and real-time PCR for the patients who failed to respond against imatinib mesylate. In this study, 72 (54.96%) were males and 59 (45.03%) were females with a median age of 38.5 years. CBC values in the diagnosis process showed that 75 patients had high values of WBC being >100 × 103/μl, while 71 (58.01) patients exhibited reduced values of hemoglobin, i.e., <10.00 mg/dl, and high values of PLTs > 100 were observed in 40 (30.53%) patients. Cytogenetic results show that standard translocation was developed in 63 (82.89%), development of complex variant translocations in 4 (5.32%), additional chromosomal abnormalities (ACAs) in 3 (3.94%), and ACAs together with complex variant translocations in 1 (1.31%) patient. At the time of diagnosis, 61 (92.95%) patients were in the chronic phase, 4 (5.63%) were in the accelerated phase, and only 1 (1.40%) was in the blast crisis. Out of twenty-two patients, only 6 CML patients who were shifted from imatinib mesylate to nilotinib showed BCR-ABL-positive amplification. However, only 7 out of twenty-one patients exhibit BCR-ABL gene values ≥ 1 after three months of follow-up when analyzed by the quantitative real-time PCR. In conclusion, we found a novel five-way translocation 46XX,t(1;2;2;17;9;22)(p36.3,q21;q11.2,q21,q34,q11.2) and a novel four-way complex variant translocation 48XY,+8(8;17)(9;22),+der(22)(q11.2;q23)(q34;q11.2) in the accelerated phase.
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MESH Headings
- Adolescent
- Adult
- Antineoplastic Agents/therapeutic use
- Biomarkers, Tumor/genetics
- Drug Substitution
- Female
- Humans
- Imatinib Mesylate/therapeutic use
- In Situ Hybridization, Fluorescence
- Karyotyping
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Male
- Middle Aged
- Philadelphia Chromosome
- Protein Kinase Inhibitors/therapeutic use
- Pyrimidines/therapeutic use
- Translocation, Genetic
- Treatment Outcome
- Young Adult
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Affiliation(s)
- Muhammad Asif
- Department of Biotechnology, BUITEMS, Quetta, Pakistan
- Office of Research Innovation and Commercialization, BUITEMS, Quetta, Pakistan
| | - Abrar Hussain
- Department of Biotechnology, BUITEMS, Quetta, Pakistan
| | - Abdul Wali
- Department of Biotechnology, BUITEMS, Quetta, Pakistan
| | - Nazeer Ahmed
- Department of Biotechnology, BUITEMS, Quetta, Pakistan
| | - Irfan Ali
- Centre of Agricultural Biochemistry and Biotechnology, Agriculture University of Faisalabad, Pakistan
| | - Zafar Iqbal
- Clinical Laboratory Sciences Program, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences/KAIMRC/SSBMT, National Guard Health Affairs, King Abdulaziz Medical City, Al-Ahsa, Saudi Arabia
| | - Muhammad Amir
- Department of Biotechnology, BUITEMS, Quetta, Pakistan
| | - Muhammad Shafiq
- Department of Biotechnology, University of Sialkot, Pakistan
| | - Mahmood Rasool
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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7
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Fu HX, Gu YQ, Lai YY, Qin YZ, Wang JZ, Chen H, Xu LP, Zhang XH, Liu KY, Huang XJ, Jiang H. [Hematologic malignancies with coexisting t(9;22) and inv(16) chromosomal abnormalities: report of three cases and literature review]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2021; 41:937-940. [PMID: 33333698 PMCID: PMC7767806 DOI: 10.3760/cma.j.issn.0253-2727.2020.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- H X Fu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - Y Q Gu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - Y Y Lai
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - Y Z Qin
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - J Z Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - H Chen
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - L P Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - X H Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - K Y Liu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - X J Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - H Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
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Smith G, Apperley J, Milojkovic D, Cross NCP, Foroni L, Byrne J, Goringe A, Rao A, Khorashad J, de Lavallade H, Mead AJ, Osborne W, Plummer C, Jones G, Copland M. A British Society for Haematology Guideline on the diagnosis and management of chronic myeloid leukaemia. Br J Haematol 2020; 191:171-193. [PMID: 32734668 DOI: 10.1111/bjh.16971] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Adam J Mead
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Wendy Osborne
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
| | - Chris Plummer
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
| | - Gail Jones
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
- BSH Haemato-Oncology Task Force representative
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9
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Lauseker M, Bachl K, Turkina A, Faber E, Prejzner W, Olsson‐Strömberg U, Baccarani M, Lomaia E, Zackova D, Ossenkoppele G, Griskevicius L, Schubert‐Fritschle G, Sacha T, Heibl S, Koskenvesa P, Bogdanovic A, Clark RE, Guilhot J, Hoffmann VS, Hasford J, Hochhaus A, Pfirrmann M. Prognosis of patients with chronic myeloid leukemia presenting in advanced phase is defined mainly by blast count, but also by age, chromosomal aberrations and hemoglobin. Am J Hematol 2019; 94:1236-1243. [PMID: 31456269 DOI: 10.1002/ajh.25628] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/19/2019] [Accepted: 08/22/2019] [Indexed: 12/28/2022]
Abstract
Chronic myeloid leukemia (CML) is usually diagnosed in chronic phase, yet there is a small percentage of patients that is diagnosed in accelerated phase or blast crisis. Due to this rarity, little is known about the prognosis of these patients. Our aim was to identify prognostic factors for this cohort. We identified 283 patients in the EUTOS population-based and out-study registries that were diagnosed in advanced phase. Nearly all patients were treated with tyrosine kinase inhibitors. Median survival in this heterogeneous cohort was 8.2 years. When comparing patients with more than 30% blasts to those with 20-29% blasts, the hazard ratio (HR) was 1.32 (95%-confidence interval (CI): [0.7-2.6]). Patients with 20-29% blasts had a significantly higher risk than patients with less than 20% blasts (HR: 2.24, 95%-CI: [1.2-4.0], P = .008). We found that the blast count was the most important prognostic factor; however, age, hemoglobin, basophils and other chromosomal aberrations should be considered as well. The ELTS score was able to define two groups (high risk vs non-high risk) with an HR of 3.01 (95%-CI: [1.81-5.00], P < .001). Regarding the contrasting definitions of blast crisis, our data clearly supported the 20% cut-off over the 30% cut-off in this cohort. Based on our results, we conclude that a one-phase rather than a two-phase categorization of de novo advanced phase CML patients is appropriate.
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Affiliation(s)
- Michael Lauseker
- Institute for Medical Information Processing, Biometry, and EpidemiologyLudwig‐Maximilians‐Universität München Munich Germany
| | - Katharina Bachl
- Institute for Medical Information Processing, Biometry, and EpidemiologyLudwig‐Maximilians‐Universität München Munich Germany
| | - Anna Turkina
- National Research Center for Hematology Moscow Russia
| | - Edgar Faber
- Department of Hematology‐OncologyUniversity Hospital, Palacky University Olomouc Czech Republic
| | - Witold Prejzner
- Department of HematologyMedical University of Gdansk Gdansk Poland
| | - Ulla Olsson‐Strömberg
- Department of Internal Medicine, Department of Medical Science and Division of HematologyUniversity Hospital Uppsala Sweden
| | - Michele Baccarani
- Department of Hematology and Oncology L. and AUniversity of Bologna Bologna Italy
| | - Elza Lomaia
- Clinical oncology ‐ Research department of oncology and hematologyAlmazov Medical Research Center St Petersburg Russian Federation
| | - Daniela Zackova
- Department of Internal Medicine, Hematology and OncologyUniversity Hospital Brno and Masaryk University Brno Czech Republic
| | - Gert Ossenkoppele
- Department of HematologyAmsterdam University Medical Center, location VUmc Amsterdam The Netherlands
| | - Laimonas Griskevicius
- Vilnius University Hospital Santaros Klinikos and Institute of Clinical MedicineVilnius University Vilnius Lithuania
| | | | - Tomasz Sacha
- Chair and Department of HematologyJagiellonian University Hospital Kraków Poland
| | - Sonja Heibl
- Department for Internal Medicine IVKlinikum Wels‐Grieskirchen Wels Austria
| | - Perttu Koskenvesa
- Helsinki University Hospital Cancer Center and Hematology Research UnitHelsinki University Helsinki Finland
| | - Andrija Bogdanovic
- Clinic of Hematology CCS and Faculty of MedicineUniversity of Belgrade Belgrade Serbia
| | - Richard E. Clark
- Institute of Translational MedicineUniversity of Liverpool Liverpool UK
| | - Joelle Guilhot
- Clinical Investigation Center, INSERM CIC 1402, CHU Poitiers Poitiers France
| | - Verena S. Hoffmann
- Institute for Medical Information Processing, Biometry, and EpidemiologyLudwig‐Maximilians‐Universität München Munich Germany
| | - Joerg Hasford
- Institute for Medical Information Processing, Biometry, and EpidemiologyLudwig‐Maximilians‐Universität München Munich Germany
| | - Andreas Hochhaus
- Abteilung Hämatologie/Onkologie, Klinik für Innere Medizin IIUniversitätsklinikum Jena Jena Germany
| | - Markus Pfirrmann
- Institute for Medical Information Processing, Biometry, and EpidemiologyLudwig‐Maximilians‐Universität München Munich Germany
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10
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Bonifacio M, Stagno F, Scaffidi L, Krampera M, Di Raimondo F. Management of Chronic Myeloid Leukemia in Advanced Phase. Front Oncol 2019; 9:1132. [PMID: 31709190 PMCID: PMC6823861 DOI: 10.3389/fonc.2019.01132] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 10/10/2019] [Indexed: 12/14/2022] Open
Abstract
Management of chronic myeloid leukemia (CML) in advanced phases remains a challenge also in the era of tyrosine kinase inhibitors (TKIs) treatment. Cytogenetic clonal evolution and development of resistant mutations represent crucial events that limit the benefit of subsequent therapies in these patients. CML is diagnosed in accelerated (AP) or blast phase (BP) in <5% of patients, and the availability of effective treatments for chronic phase (CP) has dramatically reduced progressions on therapy. Due to smaller number of patients, few randomized studies are available in this setting and evidences are limited. Nevertheless, three main scenarios may be drawn: (a) patients diagnosed in AP are at higher risk of failure as compared to CP patients, but if they achieve optimal responses with frontline TKI treatment their outcome may be similarly favorable; (b) patients diagnosed in BP may be treated with TKI alone or with TKI together with conventional chemotherapy regimens, and subsequent transplant decisions should rely on kinetics of response and individual transplant risk; (c) patients in CP progressing under TKI treatment represent the most challenging population and they should be treated with alternative TKI according to the mutational profile, optional chemotherapy in BP patients, and transplant should be considered in suitable cases after return to second CP. Due to lack of validated and reliable markers to predict blast crisis and the still unsatisfactory results of treatments in this setting, prevention of progression by careful selection of frontline treatment in CP and early treatment intensification in non-optimal responders remains the main goal. Personalized evaluation of response kinetics could help in identifying patients at risk for progression.
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Affiliation(s)
| | - Fabio Stagno
- Division of Hematology With BMT, AOU Policlinico “Vittorio Emanuele”, University of Catania, Catania, Italy
| | - Luigi Scaffidi
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
| | - Mauro Krampera
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
| | - Francesco Di Raimondo
- Division of Hematology With BMT, AOU Policlinico “Vittorio Emanuele”, University of Catania, Catania, Italy
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11
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Millot F, Maledon N, Guilhot J, Güneş AM, Kalwak K, Suttorp M. Favourable outcome of de novo advanced phases of childhood chronic myeloid leukaemia. Eur J Cancer 2019; 115:17-23. [PMID: 31082688 DOI: 10.1016/j.ejca.2019.03.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/25/2019] [Accepted: 03/22/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Chronic myeloid leukaemia (CML) is very rare in children. The aim of the study is to report the experience within the I-CML-Ped study in children and adolescents presenting at diagnosis with advanced phase disease and to describe their characteristics and outcomes. METHODS Of 479 children and adolescents enrolled in the international registry for childhood chronic myeloid leukaemia (I-CML-Ped Study; www.clinicaltrials.govNCT01281735), 36 children (7.5%) presented at initial diagnosis with CML in advanced phase according to the European LeukemiaNet criteria. RESULTS Nineteen (4%) patients were diagnosed in accelerated phase (CML-AP), and among the 17 patients (3.5%) diagnosed in blastic phase (CML-BP), 70% presented with lymphoid immunophenotype. Initial treatment of CML-AP/CML-BP consisted of tyrosine kinase inhibitors (TKIs) with or without chemotherapy, leading to complete haematologic response in 33 of 36 (92%) patients. Seventeen patients proceeded to haematopoietic stem cell transplantation. At the last follow-up, 18 of 19 patients with de novo CML-AP are alive in at least major molecular response (MMR) (n = 16), in progression (n = 1) or in molecular relapse (n = 1) and 13 of 17 patients with de novo CML-BP are alive in at least MMR. Five-year overall survival rates are 94% (95% confidence interval [CI]: 66%-99%) and 74% (95% CI: 44%-89%) for patients diagnosed in CML-AP and CML-BP, respectively. CONCLUSION Children with advanced phase at diagnosis of CML seem to have a better survival rate than that reported for advanced phases evolving under TKI treatment.
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MESH Headings
- Adolescent
- Age of Onset
- Cancer Survivors
- Child
- Child, Preschool
- Databases, Factual
- Disease Progression
- Female
- Hematopoietic Stem Cell Transplantation/adverse effects
- Hematopoietic Stem Cell Transplantation/mortality
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/mortality
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Male
- Molecular Targeted Therapy
- Neoplasm Staging
- Protein Kinase Inhibitors/adverse effects
- Protein Kinase Inhibitors/therapeutic use
- Registries
- Time Factors
- Treatment Outcome
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Affiliation(s)
| | | | | | - Adalet Meral Güneş
- Department of Pediatric Hematology, Uludağ University Hospital, Görükle Bursa, Turkey
| | - Krzysztof Kalwak
- Department of Pediatric Hematology Oncology and Transplantation, Wroclaw Medical University, Wroclaw, Poland
| | - Meinolf Suttorp
- Medical Faculty, Department of Pediatric Hematology and Oncology, Technical University, Dresden, Germany
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12
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Lyu CL, Liu JQ, Chen M, Chen B, Xiao ZJ. [The impact of meisoindigo on apoptosis and proliferation of SET2 cell line by JAK-STAT pathway]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2019; 40:29-34. [PMID: 30704225 PMCID: PMC7351697 DOI: 10.3760/cma.j.issn.0253-2727.2019.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Indexed: 01/19/2023]
Abstract
Objective: To observe the effect of meisoindigo on apoptosis and proliferation of JAK2/V617F heterozygous mutation cell line-SET2 cell line to further explore the role of JAK-STAT pathway in this effect. Methods: Cell apoptosis after treated with different concentration of meisoindigo (0, 5, and 10 μmol/L) was evaluated by flow cytometry at different time points (24, 48, 72 h). Cell proliferation with CCK8 test was evaluated at different time points (24, 48, 72, 96 h) after administered with different concentration of meisoindigo (0, 5, 10, and 20 μmol/L). After treatment with different concentration of meisoindigo (0, 5, 10, and 20 μmol/L), SET2 cells were collected after 12 h, and then cultured in incomplete methylcellulose-based medium for clone formation. JAK-STAT signaling pathway and apoptosis related protein by Western blot test were evaluated 12 h after administered with different concentration of meisoindigo (0, 5, 10, and 20 μmol/L). Results: At different time points after treated with meisoindigo, the apoptosis rate of SET2 cell lines increased (P<0.01) with the inhibited proliferation (P<0.01), and the decreased clone formation rate of SET2 cell lines [0 μmol/L meisoindigo: (4.48±1.19)%, 20 μmol/L meisoindigo: (2.55±0.36)%; Dunnett P=0.020] in the presence of augmented concentrations of meisoindigo. At 12 hours after administration with meisoindigo, the reduced expressions of JAK2, P-JAK2, P-STAT1, P-STAT3, P-STAT3, STAT5, the decreased anti-apoptosis proteins BCL-2, BCL-XL and the increased pro-apoptosis protein BID, BIM were observed in the presence of increased concentrations of meisoindigo. Conclusion: Meisoindigo played an important role during the apoptosis and the inhibition of proliferation in ph-negative myeloproliferative neoplasm cell-SET2 cell lines, which might be related to the inhibition of JAK-STAT signaling pathway with up-regulation of pro-apoptosis protein and down-regulation of anti-apoptosis protein.
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Affiliation(s)
- C L Lyu
- Institute of Hematology and Blood Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China (is working on the Affiliated Hospital of Nanjing University Medical School, Nanjing Drum Tower Hospital, Nanjing 210009, China)
| | - J Q Liu
- Institute of Hematology and Blood Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - M Chen
- Institute of Hematology and Blood Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - B Chen
- The Affiated Hospital of Nanjing University Medical School, Nanjing Drum Tower Hospital, Nanjing 210009, China
| | - Z J Xiao
- Institute of Hematology and Blood Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
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13
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Gomez-de-León A, Gómez-Almaguer D, Ruiz-Delgado GJ, Ruiz-Arguelles GJ. Insights into the management of chronic myeloid leukemia in resource-poor settings: a Mexican perspective. Expert Rev Hematol 2017; 10:809-819. [PMID: 28742419 DOI: 10.1080/17474086.2017.1360180] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The arrival of targeted therapy for chronic myeloid leukemia (CML) was revolutionary. However, due to the high cost of tyrosine kinase inhibitors, access to this highly effective therapy with strict monitoring strategies is limited in low to middle-income countries. In this context, following standard recommendations proposed by experts in developed countries is difficult. Areas covered: This review aims to provide an insight into the management of patients with CML living in a resource-limited setting. It addresses several issues: diagnosis, initial treatment, disease monitoring, and additional treatment alternatives including allogeneic hematopoietic stem cell transplantation. Expert commentary: Imatinib is probably the most cost-effective TKI for initial treatment in developing and underdeveloped countries. Generic imatinib preparations should be evaluated before considering their widespread use. Adherence to treatment should be emphasized. Adequate monitoring can be performed through several methods successfully and is important for predicting outcomes, particularly early in the first year, and if treatment suspension is being considered. Access to further therapeutic alternatives should define our actions after failure or intolerance to imatinib, preferring additional TKIs if possible. Allogeneic transplantation in chronic phase is a viable option in this context.
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Affiliation(s)
- Andrés Gomez-de-León
- a Universidad Autónoma de Nuevo León , Facultad de Medicina y Hospital Universitario "Dr.José Eleuterio González". Hematology Service, Monterrey , Nuevo León , México
| | - David Gómez-Almaguer
- a Universidad Autónoma de Nuevo León , Facultad de Medicina y Hospital Universitario "Dr.José Eleuterio González". Hematology Service, Monterrey , Nuevo León , México
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Donor type, in addition to transplantation in chronic phase and myeloablative conditioning, influence transplant survival for patients with advanced chronic myeloid leukemia in the era of tyrosine kinase inhibitors. Leukemia 2017; 31:1654-1657. [PMID: 28400618 DOI: 10.1038/leu.2017.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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15
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Chen Z, Wang W, Cortes JE, Liu E, Miranda RN, Zhao C, Yuan J, Lu X, Yang W, Ameri MD, Kantarjian HM, Medeiros LJ, Hu S. Differential clinical and prognostic impact of myeloid sarcoma vs medullary myeloid blast phase of chronic myelogenous leukemia in the era of tyrosine kinase inhibitor therapy. Blood Cancer J 2016; 6:e418. [PMID: 27152845 PMCID: PMC4916296 DOI: 10.1038/bcj.2016.27] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Z Chen
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Hematology, Huashan Hospital, Fudan University, Shanghai, China
| | - W Wang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - J E Cortes
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - E Liu
- Department of Pathology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - R N Miranda
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - C Zhao
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - J Yuan
- Department of Pathology, University of Nebraska, Omaha, NE, USA
| | - X Lu
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - W Yang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M D Ameri
- Department of Pathology, City of Hope National Medical Center, Duarte, CA, USA
| | - H M Kantarjian
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - L J Medeiros
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S Hu
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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16
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Daroudi R, Mirzania M, Nikravanfard N, Sadighi S, Sedighi Z, Zendehdel K. Estimation of the prevalence and direct medical costs of chronic myeloid leukemia in the I.R. of Iran in the era of tyrosine kinase inhibitors. Asia Pac J Clin Oncol 2016; 13:e416-e422. [PMID: 26990676 DOI: 10.1111/ajco.12470] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 11/01/2015] [Accepted: 01/13/2016] [Indexed: 01/12/2023]
Abstract
BACKGROUND After the introduction of tyrosine kinase inhibitors for chronic myeloid leukemia (CML), the survival of these patients has increased significantly. However, these new drugs are expensive and impose considerable expense to patients and governments. Epidemiologic and economic evaluation studies provide good information for resource allocation and decision making. We estimated the incidence, prevalence and direct medical cost of CML in Iran. METHODS We used the National Cancer Registry (NCR) data from 2006 to 2009 to estimate the incidence rate of CML (ICD-10 code C92.1). After adjustment for the underestimation of incidence rates, we used survival rates of CML and estimated the 5-year prevalence for these patients. In addition, we used clinical practice guideline, expert opinions and medical tariffs to estimate the direct medical costs through the prevalence approach. RESULTS After an adjustment for the underestimation, the incidence rate of CML was 0.5 per 100 000 in the I.R. of Iran. The 5-year prevalence was about 2263 cases (2.98 per 100 000). The total direct medical cost of CML was $23 089 323 and the majority of the cost (97%) was related to drug costs. The total cost will increase considerably to $40 728 869 if all patients use the new drug nilotinib (800 mg/day) as a second-line treatment. CONCLUSIONS The increased survival of CML patients and a possible increase in incidence of CML in Iran will most likely lead to a considerable rise in its prevalence and economic burden.
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Affiliation(s)
- Rajabali Daroudi
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences (TUMS), Tehran, I.R of Iran.,Department of Health Economics and Management, School of Public Health, TUMS, Tehran, I.R of Iran
| | - Mehrzad Mirzania
- Hematology and Medical Oncology Group, Cancer Research Center, Cancer Institute, Imam Khomeini Hospital Complex, TUMS, Tehran, I.R of Iran
| | - Nazila Nikravanfard
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences (TUMS), Tehran, I.R of Iran.,National Research Ethics Committee, Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, I.R of Iran
| | - Sanambar Sadighi
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences (TUMS), Tehran, I.R of Iran
| | - Zahra Sedighi
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences (TUMS), Tehran, I.R of Iran
| | - Kazem Zendehdel
- Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences (TUMS), Tehran, I.R of Iran.,Cancer Models Research Center, Cancer Institute of Iran, TUMS, Tehran, I.R of Iran
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17
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Mukherjee S, Kalaycio M. Accelerated Phase CML: Outcomes in Newly Diagnosed vs. Progression From Chronic Phase. Curr Hematol Malig Rep 2016; 11:86-93. [DOI: 10.1007/s11899-016-0304-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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DeFilipp Z, Khoury HJ. Management of advanced-phase chronic myeloid leukemia. Curr Hematol Malig Rep 2016; 10:173-81. [PMID: 25929768 DOI: 10.1007/s11899-015-0249-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The management of chronic myeloid leukemia (CML) in accelerated or blast phase (advanced phase) remains a significant challenge despite the introduction of very effective tyrosine kinase inhibitors (TKIs). The biology of advanced-phase CML is complex and engages several pathways that are not optimally targeted by TKIs. Allogeneic stem cell transplantation remains the only potentially curative therapy, but the effectiveness of this conventional approach is limited. New strategies are required to improve the outlook for these patients.
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Affiliation(s)
- Zachariah DeFilipp
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, 1365 Clifton Road NE C5010, Atlanta, GA, 30322, USA,
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19
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Accelerated phase chronic myeloid leukemia: evaluation of clinical criteria as predictors of survival, major cytogenetic response and progression to blast phase. Rev Bras Hematol Hemoter 2015; 37:341-7. [PMID: 26408370 PMCID: PMC4685086 DOI: 10.1016/j.bjhh.2015.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 06/09/2015] [Accepted: 07/07/2015] [Indexed: 01/30/2023] Open
Abstract
Background Published criteria defining the accelerated phase in chronic myeloid leukemia are heterogeneous and little is known about predictors of poor outcome. Methods This is a retrospective study of 139 subjects in the accelerated phase of chronic myeloid leukemia treated with imatinib at a single center in Brazil. The objective was to identify risk factors for survival, major cytogenetic response and progression to blast phase in this population. The factors analyzed were: blasts 10–29%, basophils ≥ 20%, platelets > 1 × 106/μL or <1 × 105/μL and white blood cells > 1 × 105/μL in the peripheral blood, as well as clonal evolution, splenomegaly, hemoglobin < 10 g/dL, time between diagnosis of chronic myeloid leukemia and imatinib treatment, and hematologic toxicity. Results Risk factors for poor survival in multivariate analysis were Grades 3–4 hematologic toxicity (p-value = 0.001), blasts 10–29% (p-value = 0.023), and hemoglobin < 10 g/dL (p-value = 0.04). Risk factors for not achieving major cytogenetic response were blasts 10–29% (p-value = 0.007), hemoglobin < 10 g/dL (p-value = 0.001), and previous use of interferon (p-value = 0.032). Risk factors for progression to the blast phase were hemoglobin < 10 g/dL (p-value = 0.005), basophils ≥ 20% (p-value = 0.023), and time from diagnosis of chronic myeloid leukemia to imatinib treatment > 12 months (p-value = 0.030). Conclusion These data indicate that patients with the above risk factors have a worse prognosis. This information can guide the therapy to be used.
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20
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Cost-effectiveness of ponatinib in chronic myeloid leukemia in Italy. GLOBAL & REGIONAL HEALTH TECHNOLOGY ASSESSMENT 2015. [DOI: 10.5301/grhta.5000189] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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21
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Al Ustwani O, Griffiths EA, Wang ES, Wetzler M. Omacetaxine mepesuccinate in chronic myeloid leukemia. Expert Opin Pharmacother 2014; 15:2397-405. [PMID: 25301179 DOI: 10.1517/14656566.2014.964642] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Homoharringtonine (HHT) and other alkaloid esters were originally isolated from the Cephalotaxus evergreen tree and have been used in traditional Chinese medicine since the 1970s to treat a variety of malignancies. Although HHT was investigated for the treatment of chronic myeloid leukemia (CML) in the 1990s with good results, the advent of BCR-ABL1 tyrosine kinase inhibitors (TKIs) at that time rapidly established a new standard of care for CML. Omacetaxine mepesuccinate is a semisynthetic derivative of HHT with known clinical activity in relapsed or refractory CML following TKI therapy. AREAS COVERED In this review, we summarize the biologic effects of HHT and its derivative, omacetaxine, in CML. Additionally, we analyze the concepts learned from the early trials using these drugs. Data from clinical trials resulting in drug approval are also reviewed. EXPERT OPINION Omacetaxine has a clear role in the CML armamentarium for patients in chronic and accelerated phase who have failed or were intolerant to two or more TKIs.
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Affiliation(s)
- Omar Al Ustwani
- Roswell Park Cancer Institute, Department of Medicine, Leukemia Section , Elm and Carlton Street, Buffalo, NY 14263 , USA +001 716 845 8447 ; +001 716 845 2343 ;
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22
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Inhibition of Aurora kinase B is important for biologic activity of the dual inhibitors of BCR-ABL and Aurora kinases R763/AS703569 and PHA-739358 in BCR-ABL transformed cells. PLoS One 2014; 9:e112318. [PMID: 25426931 PMCID: PMC4245092 DOI: 10.1371/journal.pone.0112318] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Accepted: 10/06/2014] [Indexed: 12/21/2022] Open
Abstract
ABL tyrosine kinase inhibitors (TKI) like Imatinib, Dasatinib and Nilotinib are the gold standard in conventional treatment of CML. However, the emergence of resistance remains a major problem. Alternative therapeutic strategies of ABL TKI-resistant CML are urgently needed. We asked whether dual inhibition of BCR-ABL and Aurora kinases A-C could overcome resistance mediated by ABL kinase mutations. We therefore tested the dual ABL and Aurora kinase inhibitors PHA-739358 and R763/AS703569 in Ba/F3- cells ectopically expressing wild type (wt) or TKI-resistant BCR-ABL mutants. We show that both compounds exhibited strong anti-proliferative and pro-apoptotic activity in ABL TKI resistant cell lines including cells expressing the strongly resistant T315I mutation. Cell cycle analysis indicated polyploidisation, a consequence of continued cell cycle progression in the absence of cell division by Aurora kinase inhibition. Experiments using drug resistant variants of Aurora B indicated that PHA-739358 acts on both, BCR-ABL and Aurora Kinase B, whereas Aurora kinase B inhibition might be sufficient for the anti-proliferative activity observed with R763/AS703569. Taken together, our data demonstrate that dual ABL and Aurora kinase inhibition might be used to overcome ABL TKI resistant CML.
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Jabbour EJ, Hughes TP, Cortés JE, Kantarjian HM, Hochhaus A. Potential mechanisms of disease progression and management of advanced-phase chronic myeloid leukemia. Leuk Lymphoma 2014; 55:1451-62. [PMID: 24050507 PMCID: PMC4186697 DOI: 10.3109/10428194.2013.845883] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Despite vast improvements in the treatment of Philadelphia chromosome-positive chronic myeloid leukemia (CML) in chronic phase (CP), advanced stages of CML, accelerated phase or blast crisis, remain notoriously difficult to treat. Treatments that are highly effective against CML-CP produce disappointing results against advanced disease. Therefore, a primary goal of therapy should be to maintain patients in CP for as long as possible, by (1) striving for deep, early molecular response to treatment; (2) using tyrosine kinase inhibitors that lower risk of disease progression; and (3) more closely observing patients who demonstrate cytogenetic risk factors at diagnosis or during treatment.
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MESH Headings
- Blast Crisis/diagnosis
- Blast Crisis/etiology
- Blast Crisis/therapy
- Disease Management
- Disease Progression
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/etiology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Leukemia, Myeloid, Accelerated Phase/diagnosis
- Leukemia, Myeloid, Accelerated Phase/drug therapy
- Leukemia, Myeloid, Accelerated Phase/etiology
- Neoplasm Staging
- Prognosis
- Treatment Outcome
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Affiliation(s)
- Elias J. Jabbour
- Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Timothy P. Hughes
- Department of Hematology, The University of Adelaide, Adelaide, Australia
| | - Jorge E. Cortés
- Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Hagop M. Kantarjian
- Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Andreas Hochhaus
- Abteilung Hämatologie/Onkologie, Universitätsklinikum Jena, Jena, Germany
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Khoury HJ, Cortes J, Baccarani M, Wetzler M, Masszi T, Digumarti R, Craig A, Benichou AC, Akard L. Omacetaxine mepesuccinate in patients with advanced chronic myeloid leukemia with resistance or intolerance to tyrosine kinase inhibitors. Leuk Lymphoma 2014; 56:120-7. [PMID: 24650054 DOI: 10.3109/10428194.2014.889826] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Omacetaxine mepesuccinate promotes apoptosis by inhibiting the production of short-lived oncoproteins. The efficacy and safety of omacetaxine in patients with advanced chronic myeloid leukemia (CML) previously treated with tyrosine kinase inhibitors were assessed in two phase II trials (CML-202 and CML-203). Fifty-one patients in accelerated phase (AP-CML) and 44 in myeloid blast phase (BP-CML) received subcutaneous omacetaxine 1.25 mg/m(2) twice daily days 1-14 every 28 days until hematologic response/improvement or any cytogenetic response, then days 1-7 every 28 days until disease progression. The primary endpoint was maintenance or attainment of a major hematologic response (MHR). Cytogenetic responses were also evaluated. MHR was 37% in patients with AP-CML and 9% with BP-CML (22% and 5% in those with a history of T315I). Most grade 3/4 adverse events were related to myelosuppression, and were generally manageable. Omacetaxine demonstrates activity and an acceptable safety profile in pretreated patients with advanced CML, irrespective of mutational status.
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Affiliation(s)
- H Jean Khoury
- Emory University School of Medicine , Atlanta, GA , USA
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Lai CM, Horowitz S. Brentuximab vedotin: treatment role for relapsed refractory systemic anaplastic large-cell lymphoma. Expert Rev Hematol 2014; 6:361-73. [DOI: 10.1586/17474086.2013.814434] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Zámečníkova A. Targeting the BCR–ABL tyrosine kinase in chronic myeloid leukemia as a model of rational drug design in cancer. Expert Rev Hematol 2014; 3:45-56. [DOI: 10.1586/ehm.09.66] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ohanian M, Kantarjian HM, Quintas-Cardama A, Jabbour E, Abruzzo L, Verstovsek S, Borthakur G, Ravandi F, Garcia-Manero G, Champlin R, Pierce S, Alattar ML, Trinh LX, Luthra R, Ferrajoli A, Kadia T, O'Brien S, Cortes JE. Tyrosine kinase inhibitors as initial therapy for patients with chronic myeloid leukemia in accelerated phase. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2013; 14:155-162.e1. [PMID: 24332214 DOI: 10.1016/j.clml.2013.08.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 08/29/2013] [Accepted: 08/29/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Accelerated phase CML most frequently represents a progression state in CML. However, some patients present with AP features at the time of diagnosis. There is limited information on the outcome of these patients who received TKIs as initial therapy. PATIENTS AND METHODS We analyzed the outcome of 51 consecutive patients with CML who presented with features of AP at the time of diagnosis, including blasts ≥ 15% (n = 6), basophils ≥ 20% (n = 22), platelets < 100 × 10(9)/L (n = 3), cytogenetic clonal evolution (n = 17), or more than 1 feature (n = 3). Patients received initial therapy with imatinib (n = 30), dasatinib (n = 5), or nilotinib (n = 16). RESULTS The rate of complete cytogenetic response for patients treated with imatinib was 80%, and with dasatinib or nilotinib was 90%. Major molecular response (MMR) (Breakpoint Cluster Region (BCR)-Abelson (ABL)/ABL ≤ 0.1%, International Scale [IS]) was achieved in 69% of patients including complete molecular response (BCR-ABL/ABL ≤ 0.0032% IS) in 49%. MMR rates for patients treated with imatinib were 63%, and with 2GTKIs, 76%. Overall survival at 36 months was 87% with imatinib and 95% with 2GTKIs. CONCLUSION TKIs should be considered standard initial therapy for patients with AP at the time of diagnosis.
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Affiliation(s)
- Maro Ohanian
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | | | | | - Elias Jabbour
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | - Lynne Abruzzo
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | - Srdan Verstovsek
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | - Gautam Borthakur
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | - Farhad Ravandi
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | | | - Richard Champlin
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | - Sherry Pierce
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | | | - Long Xuan Trinh
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | - Raja Luthra
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | | | - Tapan Kadia
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | - Susan O'Brien
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX
| | - Jorge E Cortes
- Department of Leukemia, M.D. Anderson Cancer Center, Houston, TX.
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Comparison of unrelated cord blood transplantation and HLA-matched sibling hematopoietic stem cell transplantation for patients with chronic myeloid leukemia in advanced stage. Biol Blood Marrow Transplant 2013; 19:1708-12. [PMID: 24060407 DOI: 10.1016/j.bbmt.2013.09.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 09/13/2013] [Indexed: 01/14/2023]
Abstract
This is the first report to present a clinical comparison of unrelated cord blood transplantation (CBT) and HLA-matched sibling allogeneic hematopoietic stem cell transplantation for patients with chronic myeloid leukemia (CML) in advanced stage (accelerated phase or blast crisis). A total of 32 consecutive patients with advanced CML received unrelated CBT (n= 16) or HLA-matched sibling allogeneic peripheral blood stem cell or bone marrow transplantation (allo-PBSCT/BMT) (n = 16) between 2002 and 2011. The median day to neutrophil engraftment and the median day to platelet engraftment were longer in the unrelated CBT group. The cumulative incidence of grades 1 to 2 acute graft-versus-host disease (aGVHD), grades 3 to 4 aGVHD, and chronic graft-versus-host disease did not differ significantly between the 2 cohorts. The cumulative incidence of transplantation-related mortality (TRM) at day +180 was higher in CBT group (37.5% versus 12.5%, P = .013). The risk of relapse was lower in CBT patients compared with that of allo-PBSCT/BMT patients (14.2% versus 42.7%, P = .03). The long-term survival in CBT group patients was slightly better than that of allo-PBSCT/BMT group, although the difference did not reach statistical significance: the 5-year overall survival for CBT patients and allo-PBSCT/BMT patients was 62.5% and 48.6%, respectively (P= .10), whereas the 5-year leukemia-free-survival rate was 50% and 40.5%, respectively (P = .12). Our comparisons suggest that patients with advanced CML receiving unrelated CBT had a lower relapse rate, a slightly better long-term survival, but a higher early TRM than those receiving HLA-matched related allo-PBSCT/BMT.
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Affiliation(s)
- Jeffrey H Lipton
- University Health Network, University of Toronto, Princess Margaret Cancer Centre, 610 University Avenue 15-413, Toronto, Ontario, M5G 2M9, Canada ;
| | - Dennis (Dong Hwan) Kim
- University Health Network, University of Toronto, Princess Margaret Cancer Centre, 610 University Avenue 15-413, Toronto, Ontario, M5G 2M9, Canada ;
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30
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Pavlů J, Apperley JF. Allogeneic stem cell transplantation for chronic myeloid leukemia. Curr Hematol Malig Rep 2013; 8:43-51. [PMID: 23275177 DOI: 10.1007/s11899-012-0149-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In recent years new, more potent tyrosine-kinase inhibitors have been introduced to accompany imatinib for the treatment of chronic myeloid leukemia. Most patients in chronic phase obtain an optimal response to these oral agents with minimal toxicity. Allogeneic stem cell transplantation is therefore indicated only in a minority of patients who do not achieve an adequate response to first, second or third generation agents. Patients in accelerated phase have a lower chance of achieving an optimal response on these drugs. For patients in blast phase, transplantation remains the only therapy with curative potential, although now it is increasingly used in combination with tyrosine-kinase inhibitors. In this review we address the role of allogeneic stem cell transplantation in the treatment of this disease and how patients should be transplanted.
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Affiliation(s)
- Jiří Pavlů
- Imperial College London at Hammersmith Hospital, London, UK.
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31
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Thielen N, van der Holt B, Verhoef GEG, Ammerlaan RAHM, Sonneveld P, Janssen JJWM, Deenik W, Falkenburg JHF, Kersten MJ, Sinnige HAM, Schipperus M, Schattenberg A, van Marwijk Kooy R, Smit WM, Chu IWT, Valk PJM, Ossenkoppele GJ, Cornelissen JJ. High-dose imatinib versus high-dose imatinib in combination with intermediate-dose cytarabine in patients with first chronic phase myeloid leukemia: a randomized phase III trial of the Dutch-Belgian HOVON study group. Ann Hematol 2013; 92:1049-56. [PMID: 23572137 DOI: 10.1007/s00277-013-1730-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Accepted: 03/09/2013] [Indexed: 11/27/2022]
Abstract
Despite the revolutionary change in the prognosis of chronic myeloid leukemia (CML) patients with the introduction of imatinib, patients with resistant disease still pose a considerable problem. In this multicenter, randomized phase III trial, we investigate whether the combination of high-dose imatinib and intermediate-dose cytarabine compared to high-dose imatinib alone, improves the rate of major molecular response (MMR) in newly diagnosed CML patients. This study was closed prematurely because of declining inclusion due to the introduction of second generation tyrosine kinase inhibitors and only one third of the initially required patients were accrued. One hundred nine patients aged 18-65 years were randomly assigned to either imatinib 800 mg (n = 55) or to imatinib 800 mg in combination with two successive cycles of cytarabine 200 mg/m(2) for 7 days (n = 54). After a median follow-up of 41 months, 67 % of patients were still on protocol treatment. The MMR rate at 12 months was 56 % in the imatinib arm and 48 % in the combination arm (p = 0.39). Progression-free survival was 96 % after 1 year and 89 % after 4 years. Four-year overall survival was 97 %. Adverse events grades 3 and 4 were more common in the combination arm. The addition of intermediate-dose of cytarabine to imatinib did not improve the MMR rate at 12 months. However, the underpowering of the study precludes any definitive conclusions. This trial is registered at www.trialregister.nl (NTR674).
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Affiliation(s)
- Noortje Thielen
- Department of Hematology, VU University Medical Center, De Boelelaan 1117, Amsterdam, the Netherlands.
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Akwaa F, Liesveld J. Surrogate end points for long-term outcomes in chronic myeloid leukemia. Leuk Lymphoma 2013; 54:2103-11. [DOI: 10.3109/10428194.2013.772607] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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A phase I dose-escalation study of intravenous panobinostat in patients with lymphoma and solid tumors. Invest New Drugs 2013; 31:974-85. [PMID: 23377661 DOI: 10.1007/s10637-013-9930-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 01/13/2013] [Indexed: 12/25/2022]
Abstract
PURPOSE Panobinostat, a pan-deacetylase inhibitor, is a promising anti-cancer agent that increases acetylation of proteins associated with growth and survival pathways of malignant cells. The primary objective of this phase I dose-escalation study was to determine the maximum tolerated dose (MTD) of intravenous (i.v.) panobinostat administered on different dosing schedules in patients with advanced solid tumors or lymphoma. Secondary objective was to characterize safety and tolerability, pharmacokinetic profiles, and activities of the i.v. formulation. METHODS i.v. panobinostat was administered at escalating doses on a daily (days 1-3 and 8-10 of a 21-day cycle; days 1-3 and 15-17 of a 28-day cycle) or weekly (days 1, 8, and 15 of a 28-day cycle; days 1 and 8 of a 21-day cycle) schedule, and safety and tolerability were monitored. Serial blood samples were collected following dosing for pharmacokinetic and pharmacodynamic analyses. RESULTS The MTD for the daily administration schedule was 7.2 g/m(2), whereas the MTD for the weekly schedule was 20.0 mg/m(2). In addition to fatigue and cardiac arrhythmias, including prolonged QTcF, DLTs associated with the study drug were principally due to myelosuppressive effects. Maximum concentrations and bioavailability of i.v. panobinostat increased dose-proportionally across all doses evaluated. CONCLUSIONS Based on the results of this study and others, the i.v. formulation of panobinostat was well tolerated in many patients, but concerns remain regarding its potential suitability outside the study setting due to potential electrocardiogram abnormalities. Therefore, further development will focus on the panobinostat oral formulation.
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Passé et futur de la LMC: allogreffe de CSH, omacetaxine et ponatinib. ONCOLOGIE 2012. [DOI: 10.1007/s10269-012-2217-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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First-line imatinib mesylate in patients with newly diagnosed accelerated phase-chronic myeloid leukemia. Leukemia 2012; 26:2254-9. [PMID: 22460758 DOI: 10.1038/leu.2012.92] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Imatinib mesylate is the sole BCR-ABL tyrosine kinase inhibitor approved as first-line treatment of accelerated-phase (AP) chronic myeloid leukemia (CML). Indication was based on the STI571 0109 study, in which imatinib favorably compared to historical treatments in patients failing prior therapies. The relevance of these results to currently newly diagnosed AP-CML patients remains unknown. We evaluated the benefit of imatinib in 42 newly diagnosed AP-CML patients. In all, 16 patients had hematological acceleration without chromosomal abnormalities in addition to the Philadelphia chromosome (ACAs; HEM-AP), 16 solely had ACAs (ACA-AP) and 10 had hematological acceleration plus ACAs (HEM-AP + ACA). Major cytogenetic responses were achieved in 93.7% of HEM-AP patients, 75% of patients with ACA-AP (P=NS) and 40% of patients with HEM-AP + ACA (P=0.0053). The 24-month failure-free survival rate was 87.5% in HEM-AP patients, 43.8% in ACA-AP patients and 15% in HEM-AP + ACA patients (P=0.022). The 24-month estimate of progression-free survival was 100% in HEM-AP patients, 92.8% in ACA-AP patients and 58.3% in HEM-AP + ACA patients (P=0.0052). In conclusion, frontline imatinib allows favorable outcomes in HEM-AP and ACA-AP patients but appears insufficient for patients with HEM-AP + ACA. Broader-target and/or more potent BCR-ABL tyrosine kinase inhibitors alone or in combination may be considered in this setting.
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36
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Chronic myelogenous leukemia: role of stem cell transplant in the imatinib era. Hematol Oncol Clin North Am 2012; 25:1025-48, vi. [PMID: 22054733 DOI: 10.1016/j.hoc.2011.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
In the pre-tyrosine kinase (TKI) era, allogeneic stem cell transplant (allo-SCT) was the front-line treatment of choice for young patients with chronic myelogenous leukemia (CML). Today, imatinib is well established as front-line therapy for CML, with excellent long-term outcomes. This has changed the role of allo-SCT and the number of patients undergoing allo-SCT has declined dramatically. Allo-SCT is currently recommended for patients in accelerated/blast phase disease, those who have failed a second-generation TKI and those with TKI-resistant mutations such as T315I. The role of allo-SCT in the management of CML will require continual reappraisal as medical therapies continue to evolve.
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Ernst T, Hochhaus A. Chronic Myeloid Leukemia: Clinical Impact of BCR-ABL1 Mutations and Other Lesions Associated With Disease Progression. Semin Oncol 2012; 39:58-66. [DOI: 10.1053/j.seminoncol.2011.11.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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38
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le Coutre PD, Giles FJ, Hochhaus A, Apperley JF, Ossenkoppele GJ, Blakesley R, Shou Y, Gallagher NJ, Baccarani M, Cortes J, Kantarjian HM. Nilotinib in patients with Ph+ chronic myeloid leukemia in accelerated phase following imatinib resistance or intolerance: 24-month follow-up results. Leukemia 2011; 26:1189-94. [DOI: 10.1038/leu.2011.323] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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39
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Oki Y, Copeland A, Younes A. Clinical development of panobinostat in classical Hodgkin's lymphoma. Expert Rev Hematol 2011; 4:245-52. [PMID: 21668391 DOI: 10.1586/ehm.11.24] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Deacetylase (DAC) inhibitors are promising new anticancer drugs that have complex mechanisms of action, including induction of cell-cycle arrest and apoptosis, inhibition of angiogenesis and induction of a favorable anti-tumor immune response. Panobinostat, a potent inhibitor of DAC 1-11 enzymatic activity, has demonstrated a significant in vitro antiproliferative activity against classical Hodgkin's lymphoma (cHL) cell lines in addition to a promising clinical activity in early Phase I studies in patients with relapsed cHL. In a recently completed large Phase II study in patients with relapsed cHL, panobinostat reduced tumor measurements in 74% of patients, including 23% partial and 4% complete remissions. In this article, we review the status of panobinostat drug development and compare its activity to those of other DAC inhibitors in patients with relapsed cHL. Future investigations should focus on designing rational combination regimens and identifying predictive markers that will assist in selecting patients who are likely to benefit from this novel therapy.
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Affiliation(s)
- Yasuhiro Oki
- Department of Lymphoma/Myeloma, University of Texas, MD Anderson Cancer Center, Houston, TX 77030, USA
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40
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Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative disorder that affects 5000 new patients per year in the United States. Prior to 10 years ago, durable remission was rare and patients often underwent bone marrow transplantation with substantial morbidity and mortality. Fortunately, CML has been the epicenter of exciting advances in cancer therapy with the discovery of the Bcr-Abl gene fusion and the subsequent development of imatinib mesylate, a small molecule tyrosine kinase inhibitor, to target the kinase activity of the bcr-abl protein product. Despite unprecedented durability for complete hematologic, cytogenetic, and molecular responses seen with front-line imatinib therapy, many patients require alternative therapy because of drug intolerance, suboptimal response, primary resistance, secondary resistance, or progression to advanced phase disease. Further, up to 5% of patients present with advanced disease that does not sustain a durable response to tyrosine kinase inhibitors. Thus, up to one third of CML patients require alternate therapy. Chronic myeloid leukemia has become an exemplary model system for understanding molecular targeting and overcoming mechanisms of drug resistance. This review will discuss potential mechanisms of resistance and ongoing research into novel targets and agents for CML resistant to standard of care.
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Affiliation(s)
- Sameek Roychowdhury
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan, Ann Arbor, MI 48109, USA
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41
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Luo Y, Zhao Y, Tan Y, Shi J, Han X, Zheng Y, Li L, He J, Xie W, Ye X, Cai Z, Lin M, Huang H. Imatinib combined with myeloablative allogeneic hematopoietic stem cell transplantation for advanced phases of chronic myeloid leukemia. Leuk Res 2011; 35:1307-11. [DOI: 10.1016/j.leukres.2011.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 12/29/2010] [Accepted: 01/03/2011] [Indexed: 11/30/2022]
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42
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Mughal TI, Radich JP, Van Etten RA, Quintás-Cardama A, Skorski T, Ravandi F, DeAngelo DJ, Gambacorti-Passerini C, Martinelli G, Tefferi A. Chronic myeloid leukemia 2011: successes, challenges, and strategies--proceedings of the 5th annual BCR-ABL1 positive and BCR-ABL1 negative myeloproliferative neoplasms workshop. Am J Hematol 2011; 86:811-9. [PMID: 21850662 PMCID: PMC3485684 DOI: 10.1002/ajh.22097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This report is based on the presentations and discussions at the 5th annual BCR-ABL1 positive and BCR-ABL1 negative myeloproliferative neoplasms (MPN) workshop, which took place immediately following the 52nd American Society of Hematology (ASH) meeting in Orlando, Florida on December 7th-8th, 2011. Relevant data which was presented at the ASH meeting as well as all other recent publications were presented and discussed at the workshop. This report covers front-line therapies of BCR-ABL1-positive leukemias, in addition to addressing some topical biological, pre-clinical and clinical issues, such as new insights into genomic instability and resistance to tyrosine kinase inhibitors (TKIs), risk stratification and optimizing molecular monitoring. A report pertaining to the new therapies and other pertinent preclinical and clinical issues in the BCR-ABL1 negative MPNs is published separately.
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MESH Headings
- Animals
- Antineoplastic Agents/therapeutic use
- Drug Monitoring
- Drug Resistance, Neoplasm
- Genomic Instability
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative/drug therapy
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative/genetics
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative/therapy
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Affiliation(s)
- Tariq I Mughal
- University of Colorado School of Medicine, Denver, CO, USA.
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43
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Radich JP. Measuring response to BCR-ABL inhibitors in chronic myeloid leukemia. Cancer 2011; 118:300-11. [PMID: 21717440 DOI: 10.1002/cncr.26280] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 04/14/2011] [Accepted: 04/21/2011] [Indexed: 12/26/2022]
Abstract
In patients with chronic myeloid leukemia (CML), the hallmark Philadelphia chromosome is the marker of disease that can be detected by conventional metaphase cytogenetics, fluorescence in situ hybridization, or polymerase chain reaction. The current "gold standard" of treatment response is cytogenetic response. Cytogenetic response to imatinib is strongly associated with disease progression and survival. Various strategies aimed at improving cytogenetic response have been explored, such as escalation of imatinib and switching to the newer breakpoint cluster region/v-abl Abelson murine leukemia viral oncogene (BCR-ABL) inhibitors dasatinib and nilotinib. Data from recent randomized trials of dasatinib and nilotinib as first-line therapy of newly diagnosed chronic-phase CML suggest that these agents are more effective than imatinib in achieving 6-month and 12-month complete cytogenetic responses. However, it is still too early to know whether or not this early response will translate into a long-term survival advantage. In addition, more sensitive assays to detect residual disease also may be associated with improved long-term outcomes. The deepest measure of response-a complete molecular response-may help identify patients who can stop taking imatinib for the short term, although the long-term consequences of this strategy remain unknown.
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Affiliation(s)
- Jerald P Radich
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1024, USA.
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44
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Pulte D, Gondos A, Redaniel MT, Brenner H. Survival of patients with chronic myelocytic leukemia: comparisons of estimates from clinical trial settings and population-based cancer registries. Oncologist 2011; 16:663-71. [PMID: 21471276 DOI: 10.1634/theoncologist.2010-0393] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The survival of patients with chronic myelocytic leukemia (CML) has improved during the past decades. However, there have been discrepancies between results reported from clinical trials and population-based studies. We aimed to elucidate the extent of these discrepancies. METHODS We examined the 5-year survival rate of patients in clinical trials of CML treatment and compared these results with the survival of patients in the general population using the Surveillance, Epidemiology, and End Results (SEER) database, correcting for differences in the age structure of the patient populations. RESULTS Twenty-nine trials were identified for data extraction. The survival rate calculated from SEER data was lower than the survival rate in clinical trials in the corresponding period, with differences of 2.1%-50.7%. Age-adapted survival was similar for four trials, but differences up to 35.8% were seen in most. Limitations of the study include the lack of information on chemotherapy in the SEER database and possible heterogeneity of cases. DISCUSSION The survival rate in clinical trials of CML treatment is higher than the survival rate of all patients with CML. We speculate that the difference may be a result of access to better medications, selection of healthier patients for trials, and the time necessary for adoption of new treatments. This finding underscores the need for population-based studies to give a more realistic idea of survival for patients with a given malignancy in the general population.
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Affiliation(s)
- Dianne Pulte
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany.
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45
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von Bubnoff N. Prognostic Significance of Treatment Response in CML in View of Current Recommendations for Treatment and Monitoring. Ther Adv Hematol 2011; 2:95-110. [PMID: 23556080 DOI: 10.1177/2040620711402415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The use of small-molecule kinase inhibitors has redefined the management of cancer. Chronic myelogenous leukaemia (CML) has become the paradigm for targeted cancer treatment. Imatinib has become the gold standard in the treatment of CML with excellent and durable responses and minimal side effects. Molecular diagnostics constitute an integral part of the routine monitoring. Results of cytogenetic analysis and quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) indicate suboptimal response or treatment failure and guide treatment. New Abl kinase inhibitors such as nilotinib or dasatinib are options after the failure of or intolerance to imatinib, and both are available for first-line treatment of newly diagnosed CML. This review focuses on the prognostic significance of achieving a response at specific time points in patients with CML treated with imatinib, nilotinib or dasatinib in view of available data and current treatment recommendations.
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46
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Identification of copy number alterations by array comparative genomic hybridization in patients with late chronic or accelerated phase chronic myeloid leukemia treated with imatinib mesylate. Int J Hematol 2011; 93:465-473. [PMID: 21387093 DOI: 10.1007/s12185-011-0796-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Revised: 02/01/2011] [Accepted: 02/13/2011] [Indexed: 10/18/2022]
Abstract
The outcome of treating chronic myeloid leukemia (CML) with imatinib mesylate (IM) is inferior when therapy is commenced in late chronic or accelerated phase as compared to early chronic phase. This may be attributed to additional genomic alterations that accumulate during disease progression. We sought to identify such lesions in patients showing suboptimal response to IM by performing array-CGH analysis on 39 sequential samples from 15 CML patients. Seventy-four cumulative copy number alterations (CNAs) consisting of 35 losses and 39 gains were identified. Alterations flanking the ABL1 and BCR genes on chromosomes 9 and 22, respectively, were the most common identified lesions with 5 patients losing variable portions of 9q34.11 proximal to ABL1. Losses involving 1p36, 5q31, 17q25, Y and gains of 3q21, 8q24, 22q11, Xp11 were among other recurrent lesions identified. Aberrations were also observed in individual patients, involving regions containing known leukemia-associated genes; CDKN2A/2B, IKZF1, RB1, TLX1, AFF4. CML patients in late stages of their disease, harbor pre-existing and evolving sub-microscopic CNAs that may influence disease progression and IM response.
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47
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Burchert A, Neubauer A. [Chronic myeloid leukemia. Diagnostics, therapy and future strategy]. Internist (Berl) 2011; 52:283-93; quiz 294-5. [PMID: 21253680 DOI: 10.1007/s00108-010-2791-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Survival of patients with chronic myeloid leukemia (CML) has dramatically improved with the introduction of the BCR-ABL-specific tyrosine kinase inhibitor imatinib. As a rule patients on therapy with imatinib achieve permanent complete cytogenetic and molecular remission. Patients who are primarily refractive to imatinib or lose remission achieved using imatinib are in the minority. This group has a poor prognosis. This article gives a transparent review of the diagnostics necessary when CML is primarily diagnosed and for assessment of the response during the course of the therapy. The guidelines developed for this procedure by the European leukemia network on the type and frequency of surveillance controls as well as the diagnostic criteria for imatinib resistance or suboptimal response will be presented. The indications for allogenic stem cell transplantation and the administration of second generation BCR-ABL inhibitors will be discussed as therapeutic alternatives in cases of imatinib failure in a stage-specific manner. Finally a view on therapy targets and forms of future first-line therapy of CML will be given.
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Affiliation(s)
- A Burchert
- Klinik für Hämatologie, Onkologie und Immunologie, Philipps Universität Marburg, Universitätsklinikum Giessen und Marburg, Baldingerstraße, Marburg, Germany.
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48
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Imatinib mesylate versus allogeneic hematopoietic stem cell transplantation for patients with chronic myelogenous leukemia in the accelerated phase. Blood 2011; 117:3032-40. [PMID: 21252092 DOI: 10.1182/blood-2010-09-308510] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The relative merits of allogeneic hematopoietic stem cell transplantation (allo-HSCT) and imatinib for chronic myelogenous leukemia in the accelerated phase (AP-CML) have not previously been evaluated. This cohort study was designed to compare the outcomes of imatinib (n = 87) versus allo-HSCT (n = 45) for AP-CML. A multivariate analysis of the total population revealed that a CML duration ≥ 12 months, hemoglobin < 100 g/L, and peripheral blood blasts ≥ 5% were independent adverse prognostic factors for both overall survival (OS) and progression-free survival (PFS). Both treatments resulted in similar survival in low-risk (no factor) patients, with 6-year event-free survival (EFS), OS, and PFS rates of more than 80.0%. Intermediate-risk (any factor) patients showed no difference in EFS and OS, but 6-year PFS rates were 55.7% versus 92.9% (P = .047) with imatinib versus allo-HSCT, respectively. Among high-risk (at least 2 factors) patients, imatinib was by far inferior to allo-HSCT, with 5-year EFS, OS, and PFS rates of 9.3% versus 66.7% (P = .034), 17.7% versus 100% (P = .008), and 18.8% versus 100% (P = .006), respectively. We conclude that allo-HSCT confers significant survival advantages for high- and intermediate-risk patients with AP-CML compared with imatinib treatment; however, the outcomes of the 2 therapies are equally good in low-risk patients. All trials were registered with the Chinese Clinical Trial Registry (www.chictr.org) as CHiCTR-TNC-10000955.
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Rebora P, Czene K, Antolini L, Gambacorti Passerini C, Reilly M, Valsecchi MG. Are chronic myeloid leukemia patients more at risk for second malignancies? A population-based study. Am J Epidemiol 2010; 172:1028-33. [PMID: 20861143 DOI: 10.1093/aje/kwq262] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The authors used cancer registry data to assess the incidence rate of second primary cancers among chronic myeloid leukemia (CML) patients and the long-term survival of CML patients before the introduction of tyrosine kinase inhibitors. In the Swedish Cancer Registry, the authors identified 2,753 adult CML patients diagnosed between 1970 and 1995 who were followed through December 2007. Standardized incidence ratios (SIRs) and relative survival ratios were computed. With a total of 145 subsequent primary malignancies, an increased incidence rate of second malignancy was found for stomach cancer (SIR = 2.76, 95% confidence interval (CI): 1.33, 5.08), skin cancer (SIR = 5.36, 95% CI: 3.18, 8.47), urogenital tract cancer (SIR = 1.61, 95% CI: 1.15, 2.21), and lymphoid leukemia (SIR = 5.53, 95% CI: 1.79, 12.89). Long-term relative survival figures showed that CML was related, in the era prior to the introduction of imatinib, to a very steep decline in survival (2 years from diagnosis, relative survival = 51%, 95% CI: 49, 53). This was in spite of a marginal improvement after 1985, possibly related to the introduction of interferon-α for treatment. These estimates constitute a relevant reference for future studies and a benchmark for comparisons with prognosis in CML patients after chronic use of tyrosine kinase inhibitors.
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MESH Headings
- Female
- Humans
- Incidence
- Leukemia, Lymphoid/diagnosis
- Leukemia, Lymphoid/epidemiology
- Leukemia, Lymphoid/mortality
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/epidemiology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/mortality
- Male
- Medical Records
- Middle Aged
- Neoplasms, Second Primary/diagnosis
- Neoplasms, Second Primary/epidemiology
- Neoplasms, Second Primary/mortality
- Registries
- Retrospective Studies
- Risk Assessment
- Risk Factors
- Skin Neoplasms/diagnosis
- Skin Neoplasms/epidemiology
- Skin Neoplasms/mortality
- Stomach Neoplasms/diagnosis
- Stomach Neoplasms/epidemiology
- Stomach Neoplasms/mortality
- Survival Rate
- Sweden/epidemiology
- Urogenital Neoplasms/diagnosis
- Urogenital Neoplasms/epidemiology
- Urogenital Neoplasms/mortality
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Affiliation(s)
- Paola Rebora
- Center of Biostatistics for Clinical Epidemiology, Department of Clinical Medicine and Prevention, University of Milano–Bicocca, Monza, Italy
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Otsubo K, Kanegane H, Eguchi M, Eguchi-Ishimae M, Tamura K, Nomura K, Abe A, Ishii E, Miyawaki T. ETV6-ARNT fusion in a patient with childhood T lymphoblastic leukemia. CANCER GENETICS AND CYTOGENETICS 2010; 202:22-6. [PMID: 20804916 DOI: 10.1016/j.cancergencyto.2010.07.121] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2010] [Revised: 06/14/2010] [Accepted: 07/08/2010] [Indexed: 01/09/2023]
Abstract
The ETS variant gene 6 (ETV6) gene is located at 12p13, and is frequently involved in translocations in various human neoplasms, resulting in the expression of fusion proteins consisting of the amino-terminal part of ETV6 and unrelated transcription factors or protein tyrosine kinases. Leukemia with t(1;12)(q21;p13) was previously described in a 5-year-old boy with acute myeloblastic leukemia (AML-M2) who exhibited a novel ETV6-aryl hydrocarbon receptor nuclear translocator (ARNT) fusion protein. We herein report the case of a 2-year-old boy with T-cell lymphoblastic leukemia (T-ALL) harboring t(1;12)(q21;p13). Fluorescence in situ hybridization (FISH) with a ETV6 dual-color DNA probe revealed that the split signals of the ETV6 gene in 96.7% of bone marrow cells, indicating rearrangement of the ETV6 gene. Therefore, we performed a FISH analysis with bacterial artificial chromosome (BAC) probes containing the ARNT, BCL9, and MLLT11 genes located at 1q21, and these results indicated that the ARNT gene might be involved in the t(1;12)(q21;p13). Reverse transcriptase-polymerase chain reaction analysis disclosed the existence of a ETV6-ARNT fusion gene. To our knowledge, the current report is novel in its report of the ETV6-ARNT fusion in childhood T-ALL. The ETV6-ARNT fusion is associated not only with AML but also with T-ALL.
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