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Mincherton TI, Lam SJ, Clarke SE, Hui HYL, Malherbe JAJ, Chuah HS, Sidiqi MH, Fuller KA, Erber WN. Imaging flow cytometric detection of del(17p) in bone marrow and circulating plasma cells in multiple myeloma. Int J Lab Hematol 2024; 46:495-502. [PMID: 38379463 DOI: 10.1111/ijlh.14248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/04/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND Detection of del(17p) in myeloma is generally performed by fluorescence in situ hybridization (FISH) on a slide with analysis of up to 200 nuclei. The small cell sample analyzed makes this a low precision test. We report the utility of an automated FISH method, called "immuno-flowFISH", to detect plasma cells with adverse prognostic risk del(17p) in bone marrow and blood samples of patients with myeloma. METHODS Bone marrow (n = 31) and blood (n = 19) samples from 35 patients with myeloma were analyzed using immuno-flowFISH. Plasma cells were identified by CD38/CD138-immunophenotypic gating and assessed for the 17p locus and centromere of chromosome 17. Cells were acquired on an AMNIS ImageStreamX MkII imaging flow cytometer using INSPIRE software. RESULTS Chromosome 17 abnormalities were identified in CD38/CD138-positive cells in bone marrow (6/31) and blood (4/19) samples when the percent plasma cell burden ranged from 0.03% to 100% of cells. Abnormalities could be identified in 14.5%-100% of plasma cells. CONCLUSIONS The "immuno-flowFISH" imaging flow cytometric method could detect del(17p) in plasma cells in both bone marrow and blood samples of myeloma patients. This method was also able to detect gains and losses of chromosome 17, which are also of prognostic significance. The lowest levels of 0.009% (bone marrow) and 0.001% (blood) for chromosome 17 abnormalities was below the detection limit of current FISH method. This method offers potential as a new means of identifying these prognostically important chromosomal defects, even when only rare cells are present and for serial disease monitoring.
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Affiliation(s)
- Thomas I Mincherton
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Stephanie J Lam
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
- Haematology Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Sarah E Clarke
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
- Haematology Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Henry Y L Hui
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Jacques A J Malherbe
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- Haematology Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Hun S Chuah
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
- Haematology Department, Royal Perth Hospital, Perth, Western Australia, Australia
| | - M Hasib Sidiqi
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
- Haematology Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Kathy A Fuller
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Wendy N Erber
- School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
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Leslie LA, Gangan N, Tan H, Huang Q. Clinical and economic burden of first-line chemoimmunotherapy by risk status in chronic lymphocytic leukemia. Curr Med Res Opin 2022; 38:2149-2161. [PMID: 36205521 DOI: 10.1080/03007995.2022.2133468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To evaluate the trend in cytogenetic/molecular testing rate in chronic lymphocytic leukemia (CLL) and assess the clinical and economic burden of first-line (1 L) treatment with chemoimmunotherapy (CIT) by risk status. METHODS This retrospective cohort study identified patients with CLL from a U.S. managed care population. Medical records were obtained for eligible patients who initiated 1 L CIT between 1/1/2007 and 7/31/2019 and underwent prognostic testing to classify them as high risk (del(17p), TP53 mutation, del(11q), unmutated IGHV or complex karyotype) or as non-high risk by FISH only (non-del(17p) and non-del(11q)). Study outcomes included testing rate, time to next treatment (TTNT) or death, time to treatment failure (defined as time to change of therapy, non-chemotherapy intervention, hospice care or death), and total plan paid costs (medical + pharmacy) per patient per month (PPPM) in the 1 L period. Cox proportional hazard models and generalized linear models were used to calculate adjusted hazard ratio or rate ratio. RESULTS Among the 1,808 patients with CLL, 612 were FISH or IGHV tested and the rate of testing increased from 30% to 44% from 2007-2019. High-risk patients (n = 119) had 65% higher risk of next treatment or death (median time: 2.4 vs 3.7 years), 65% higher risk of treatment failure (median time: 3.0 vs 4.9 years), and 33% higher costs ($12,194 vs $9,055, p = 0.027) during 1 L treatment than non-high risk patients (n = 134). CONCLUSIONS High-risk CLL patients treated with 1 L chemoimmunotherapy have poorer clinical and economic outcomes compared to non-high risk patients. Assessment of genetic risk remains suboptimal.
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Affiliation(s)
| | | | | | - Qing Huang
- Janssen Scientific Affairs, LLC, Horsham, PA, USA
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3
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Abstract
Despite substantial advances in anti-myeloma treatments, early recurrence and death remain an issue in certain subpopulations. Cytogenetic abnormalities (CAs) are the most widely accepted predictors for poor prognosis in multiple myeloma (MM), such as t(4;14), t(14;16), t(14;20), gain/amp(1q21), del(1p), and del(17p). Co-existing high-risk CAs (HRCAs) tend to be associated with an even worse prognosis. Achievement of sustained minimal residual disease (MRD)-negativity has recently emerged as a surrogate for longer survival, regardless of cytogenetic risk. Information from newer clinical trials suggests that extended intensified treatment can help achieve MRD-negativity in patients with HRCAs, which may lead to improved outcomes. Therapy should be considered to include a 3- or 4-drug induction regimen (PI/IMiD/Dex or PI/IMiD/Dex/anti-CD38 antibody), auto-transplantation, and consolidation/maintenance with lenalidomide ± a PI. Results from ongoing clinical trials for enriched high-risk populations will reveal the precise efficacy of the investigated regimens. Genetic abnormalities of MM cells are intrinsic critical factors determining tumor characteristics, which reflect the natural course and drug sensitivity of the disease. This paper reviews the clinicopathological features of genomic abnormalities related to adverse prognosis, focusing on HRCAs that are the most relevant in clinical practice, and outline current optimal therapeutic approaches for newly diagnosed MM with HRCAs.
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Affiliation(s)
- Ichiro Hanamura
- Division of Hematology, Department of Internal Medicine, Aichi Medical University, 1 Karimata, Yazako, Nagakute, Aichi, 480-1195, Japan.
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4
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Allan JN, Shanafelt T, Wiestner A, Moreno C, O’Brien SM, Li J, Krigsfeld G, Dean JP, Ahn IE. Long-term efficacy of first-line ibrutinib treatment for chronic lymphocytic leukaemia in patients with TP53 aberrations: a pooled analysis from four clinical trials. Br J Haematol 2022; 196:947-953. [PMID: 34865212 PMCID: PMC9299890 DOI: 10.1111/bjh.17984] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/22/2021] [Indexed: 01/14/2023]
Abstract
TP53 aberrations [del(17p) or TP53 mutation] predict poor survival with chemoimmunotherapy in patients with chronic lymphocytic leukaemia (CLL). We evaluated long-term efficacy and safety of first-line ibrutinib-based therapy in patients with CLL bearing TP53 aberrations in a pooled analysis across four studies: PCYC-1122e, RESONATE-2 (PCYC-1115/16), iLLUMINATE (PCYC-1130) and ECOG-ACRIN E1912. The pooled analysis included 89 patients with TP53 aberrations receiving first-line treatment with single-agent ibrutinib (n = 45) or ibrutinib in combination with an anti-CD20 antibody (n = 44). All 89 patients had del(17p) (53% of 89 patients) and/or TP53 mutation (91% of 58 patients with TP53 sequencing results available). With a median follow-up of 49·8 months (range, 0·1-95·9), median progression-free survival was not reached. Progression-free survival rate and overall survival rate estimates at four years were 79% and 88%, respectively. Overall response rate was 93%, including complete response in 39% of patients. No new safety signals were identified in this analysis. Forty-six percent of patients remained on ibrutinib treatment at last follow-up. With median follow-up of four years (up to eight years), results from this large, pooled, multi-study data set suggest promising long-term outcomes of first-line ibrutinib-based therapy in patients with TP53 aberrations. Registered at ClinicalTrials.gov (NCT01500733, NCT01722487, NCT02264574 and NCT02048813).
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Affiliation(s)
| | | | | | - Carol Moreno
- Hospital de la Santa Creu i Sant PauAutonomous University of BarcelonaBarcelonaSpain
| | - Susan M. O’Brien
- Chao Family Comprehensive Cancer CenterUniversity of California IrvineIrvineCAUSA
| | - Jianling Li
- Pharmacyclics LLC, an AbbVie CompanySunnyvaleCAUSA
| | | | | | - Inhye E. Ahn
- National Heart, Lung, and Blood InstituteBethesdaMDUSA
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5
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Minguela A, Vasco-Mogorrón MA, Campillo JA, Cabañas V, Remigia MJ, Berenguer M, García-Garay MC, Blanquer M, Cava C, Galian JA, Gimeno L, Soto-Ramírez MF, Martínez-Hernández MD, de la Rubia J, Teruel AI, Muro M, Periago A. Predictive value of 1q21 gain in multiple myeloma is strongly dependent on concurrent cytogenetic abnormalities and first-line treatment. Am J Cancer Res 2021; 11:4438-4454. [PMID: 34659897 PMCID: PMC8493371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023] Open
Abstract
Improved therapies in multiple myeloma (MM) have forced a constant risk stratification update, first Durie-Salmon, then international scoring systems (ISS), next revised-ISS (RISS) including high-risk cytogenetic abnormalities (HRCAs) such as del(17p) and t(4;14), and now R2-ISS including 1q21 gain has been proposed. Predictive value of 1q21 gain by itself or in concurrence with other cytogenetic abnormalities is evaluated in 737 real-world plasma cell neoplasm (PCN) patients under current therapies. Ten-year progression-free survival (10y-PFS) rates for patients with 2, 3 and >3 copies of 1q21 were 72.2%, 42.5% and 43.4% (P<1.1×10-17). Cox regression analysis confirmed that 1q21 gain was an independent prognostic factor for PFS (HR=1.804, P<0.0001, Harrell C-statistic =0.7779±0.01495) but not for OS (P=0.131). Gain of 1q21 was strongly associated with hypodiploidy (38.8% vs. 7.0%, P=1.3×10-22), hyperdiploidy (44.1% vs. 16.4%, P=1.6×10-13), HRCAs (12.6% vs. 3.5%, 1.8×10-5), IGH breaks (12.3% vs. 2.1%, P=2.1×10-7) and del(13q) (8.0% vs. 4.0%, P=0.031). In our series, 1q21 gain by itself did not improve RISS predictive capacity in patients either eligible or ineligible for autologous stem cell transplantation (ASCT). However, compared with patients with other 1q21 gains: concurrence with hyperdiploidy improved the prognosis of ASCT-eligible patients from 62.5% to 96.0% 10-year overall-survival (10y-OS, P<0.002); concurrence with hypodiploidy improved the prognosis of ASCT-ineligible patients from 35.7% to 71.0% (P=0.013); and concurrence with del(13q) worsened the prognosis of ASCT-ineligible patients from 12.5% to 53.4% (P=0.035). Gain of 1q21 should be patient-wisely evaluated, irrespective of the RISS, considering its concurrence with other cytogenetic abnormalities and eligibility for ASCT.
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Affiliation(s)
- Alfredo Minguela
- Immunology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - María A Vasco-Mogorrón
- Immunology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - José A Campillo
- Immunology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - Valentin Cabañas
- Hematology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - María J Remigia
- Department of Hematology, University Hospital La Fe and School of Medicine and Dentistry, Catholic University of ValenciaValencia, Spain
| | - Mercedes Berenguer
- Hematology Service, General University Hospital Santa Lucía, Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - María C García-Garay
- Hematology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - Miguel Blanquer
- Hematology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - Catalina Cava
- Hematology Service, General University Hospital Rafael Méndez, Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - José Antonio Galian
- Immunology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - Lourdes Gimeno
- Immunology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
- Human Anatomy Department, Medicine Faculty, Murcia University, Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - María F Soto-Ramírez
- Immunology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - María D Martínez-Hernández
- Immunology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - Javier de la Rubia
- Department of Hematology, University Hospital La Fe and School of Medicine and Dentistry, Catholic University of ValenciaValencia, Spain
| | - Ana I Teruel
- Department of Hematology, University Hospital La Fe and School of Medicine and Dentistry, Catholic University of ValenciaValencia, Spain
| | - Manuel Muro
- Immunology Service, Clinic University Hospital Virgen de la Arrrixaca (HCUVA), Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
| | - Adela Periago
- Hematology Service, General University Hospital Rafael Méndez, Biomedical Research Institute of Murcia (IMIB)Murcia, Spain
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6
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Stanley J, Hui H, Erber W, Clynick B, Fuller K. Analysis of human chromosomes by imaging flow cytometry. Cytometry B Clin Cytom 2021; 100:541-553. [PMID: 34033226 DOI: 10.1002/cyto.b.22023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/18/2021] [Accepted: 05/14/2021] [Indexed: 12/29/2022]
Abstract
Chromosomal analysis is traditionally performed by karyotyping on metaphase spreads, or by fluorescent in situ hybridization (FISH) on interphase cells or metaphase spreads. Flow cytometry was introduced as a new method to analyze chromosomes number (ploidy) and structure (telomere length) in the 1970s with data interpretation largely based on fluorescence intensity. This technology has had little uptake for human cytogenetic applications primarily due to analytical challenges. The introduction of imaging flow cytometry, with the addition of digital images to standard multi-parametric flow cytometry quantitative tools, has added a new dimension. The ability to visualize the chromosomes and FISH signals overcomes the inherent difficulties when the data is restricted to fluorescence intensity. This field is now moving forward with methods being developed to assess chromosome number and structure in whole cells (normal and malignant) in suspension. A recent advance has been the inclusion of immunophenotyping such that antigen expression can be used to identify specific cells of interest for specific chromosomes and their abnormalities. This capability has been illustrated in blood cancers, such as chronic lymphocytic leukemia and plasma cell myeloma. The high sensitivity and specificity achievable highlights the potential imaging flow cytometry has for cytogenomic applications (i.e., diagnosis and disease monitoring). This review introduces and describes the development, current status, and applications of imaging flow cytometry for chromosomal analysis of human chromosomes.
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Affiliation(s)
- Jason Stanley
- Translational Cancer Pathology Laboratory, School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Henry Hui
- Translational Cancer Pathology Laboratory, School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
| | - Wendy Erber
- Translational Cancer Pathology Laboratory, School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia.,PathWest Laboratory Medicine, Nedlands, Western Australia, Australia
| | - Britt Clynick
- Institute for Respiratory Health, Harry Perkins Institute of Medical Research, Nedlands, Western Australia, Australia
| | - Kathy Fuller
- Translational Cancer Pathology Laboratory, School of Biomedical Sciences, The University of Western Australia, Crawley, Western Australia, Australia
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7
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Morabito F, Gentile M, Monti P, Recchia AG, Menichini P, Skafi M, Atrash M, De Luca G, Bossio S, Al-Janazreh H, Galimberti S, Salah Z, Morabito L, Mujahed A, Hindiyeh M, Dono M, Fais F, Cutrona G, Neri A, Tripepi G, Fronza G, Ferrarini M. TP53 dysfunction in chronic lymphocytic leukemia: clinical relevance in the era of B-cell receptors and BCL-2 inhibitors. Expert Opin Investig Drugs 2020; 29:869-880. [PMID: 32551999 DOI: 10.1080/13543784.2020.1783239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Patients with TP53 dysfunction, assessed by del(17p) or TP53 mutations, respond poorly to chemo-immunotherapy and fare better with the new therapies (BCR and BCL-2 inhibitors); however, it is unclear whether their response is similar to that of patients without anomalies or whether there is currently an adequate determination of TP53 dysfunction. AREA COVERED A literature search was undertaken on clinical trials and real-world experience data on patients with TP53 dysfunction treated with different protocols. Moreover, data on the TP53 biological function and on the tests currently employed for its assessment were reviewed. EXPERT OPINION Although TP53 dysfunction has less negative influence on the new biological therapies, patients with these alterations, particularly those with biallelic inactivation of TP53, have a worst outcome with these therapies than those without alterations. At present, a determination of TP53, particularly with next generation sequencing (NGS) methodologies, may be sufficient for the identifications of the patients unsuitable for chemo-immunotherapy, although integration with del(17p) would be advisable. For the future, more extensive determinations of the TP53 status, including functional assays, may become part of the current armamentarium for a better patient stratification and treatment with newer protocols.
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Affiliation(s)
- Fortunato Morabito
- Hematology Department and Bone Marrow Transplant Unit, Cancer Care Center, Augusta Victoria Hospital , Jerusalem, Israel.,Biotechnology Research Unit, Aprigliano, AO/ASP , Cosenza, Italy
| | - Massimo Gentile
- Biotechnology Research Unit, Aprigliano, AO/ASP , Cosenza, Italy.,Hematology Unit, Hematology and Oncology Department , Cosenza, Italy
| | - Paola Monti
- Mutagenesis and Cancer Prevention Unit, IRCCS Ospedale Policlinico San Martino , Genoa, Italy
| | | | - Paola Menichini
- Mutagenesis and Cancer Prevention Unit, IRCCS Ospedale Policlinico San Martino , Genoa, Italy
| | - Mamdouh Skafi
- Hematology Department and Bone Marrow Transplant Unit, Cancer Care Center, Augusta Victoria Hospital , Jerusalem, Israel
| | - Moien Atrash
- Hematology Department and Bone Marrow Transplant Unit, Cancer Care Center, Augusta Victoria Hospital , Jerusalem, Israel
| | - Giuseppa De Luca
- Molecular Diagnostic Unit, IRCCS Ospedale Policlinico San Martino , Genoa, Italy
| | - Sabrina Bossio
- Biotechnology Research Unit, Aprigliano, AO/ASP , Cosenza, Italy
| | - Hamdi Al-Janazreh
- Hematology Department and Bone Marrow Transplant Unit, Cancer Care Center, Augusta Victoria Hospital , Jerusalem, Israel
| | | | - Zaidoun Salah
- The Lautenberg Center for General and Tumor Immunology, Department of Immunology and Cancer Research-Institute for Medical Research Israel-Canada, Hebrew University-Hadassah Medical School , Jerusalem, Israel
| | - Lucio Morabito
- Humanitas Clinical and Research Center, IRCCS , Rozzano, Italy
| | - Alham Mujahed
- Laboratory Department, Cancer Care Center, Augusta Victoria Hospital , Jerusalem, Israel
| | - Musa Hindiyeh
- Laboratory Department, Cancer Care Center, Augusta Victoria Hospital , Jerusalem, Israel
| | - Mariella Dono
- Molecular Diagnostic Unit, IRCCS Ospedale Policlinico San Martino , Genoa, Italy
| | - Franco Fais
- Molecular Pathology Unit, IRCCS Ospedale Policlinico San Martino , Genova, Italy.,Department of Experimental Medicine, University of Genoa , Genoa, Italy
| | - Giovanna Cutrona
- Molecular Pathology Unit, IRCCS Ospedale Policlinico San Martino , Genova, Italy
| | - Antonino Neri
- Department of Oncology and Hemato-Oncology, University of Milan , Milan, Italy.,Hematology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico , Milan, Italy
| | | | - Gilberto Fronza
- Mutagenesis and Cancer Prevention Unit, IRCCS Ospedale Policlinico San Martino , Genoa, Italy
| | - Manlio Ferrarini
- Department of Experimental Medicine, University of Genoa , Genoa, Italy
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8
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Abstract
PURPOSE OF REVIEW New risk stratification systems and treatment strategies have been introduced in recent years. We aim to provide an overview of these recent changes and summarise these data in a concise article that would be useful for clinicians. RECENT FINDINGS Apart from clinical stage, disease genetics are now recognised as important prognostic risk factors, and various new cytogenetic changes with negative prognostic impact have been identified. New technologies such as minimal residual disease detection are also playing an important role in prognostic assessment. Recent introduction of combination therapy with proteasome inhibitors and immunomodulatory drugs is showing promising results in high-risk patients and may partially abrogate the negative impact associated with some of the adverse risk factors. Recent advance has improved our understanding of high-risk multiple myeloma, and new therapeutic agents are now coming through the pipeline for this patient group with once dismal outcome.
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Affiliation(s)
- Henry S H Chan
- Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON, M5G 2M9, Canada
| | - Christine I Chen
- Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON, M5G 2M9, Canada
| | - Donna E Reece
- Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON, M5G 2M9, Canada.
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9
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Huber H, Edenhofer S, Estenfelder S, Stilgenbauer S. Profile of venetoclax and its potential in the context of treatment of relapsed or refractory chronic lymphocytic leukemia. Onco Targets Ther 2017; 10:645-656. [PMID: 28223822 PMCID: PMC5308588 DOI: 10.2147/ott.s102646] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Over the last few years, dramatic changes have occurred in the treatment of chronic lymphocytic leukemia (CLL). The current standard for young and fit patients with CLL remains chemoimmunotherapy, namely the fludarabine, cyclophosphamide, and rituximab (FCR) regimen. However, novel oral therapies are presently being introduced and represent a considerable breakthrough concerning effectiveness and safety profile. In particular, the very high-risk group of CLL patients, defined by the genetic aberration del(17p) and/or TP53 mutation, benefit from the new agents. These genetic abnormalities are the most relevant negative prognostic markers in the context of chemoimmunotherapy. New targeted therapies allow different approaches to improve outcomes.
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Affiliation(s)
- Henriette Huber
- Department of Internal Medicine III, Ulm University, Ulm, Germany
| | - Simone Edenhofer
- Department of Internal Medicine III, Ulm University, Ulm, Germany
| | - Sven Estenfelder
- Department of Internal Medicine III, Ulm University, Ulm, Germany
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10
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Thompson PA, O'Brien SM, Wierda WG, Ferrajoli A, Stingo F, Smith SC, Burger JA, Estrov Z, Jain N, Kantarjian HM, Keating MJ. Complex karyotype is a stronger predictor than del(17p) for an inferior outcome in relapsed or refractory chronic lymphocytic leukemia patients treated with ibrutinib-based regimens. Cancer 2015; 121:3612-21. [PMID: 26193999 DOI: 10.1002/cncr.29566] [Citation(s) in RCA: 191] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 05/12/2015] [Indexed: 11/08/2022]
Abstract
BACKGROUND Ibrutinib is active in patients with relapsed/refractory (R/R) chronic lymphocytic leukemia (CLL). In patients treated with ibrutinib for R/R CLL, del(17p), identified by interphase fluorescence in situ hybridization (FISH), is associated with inferior progression-free survival despite equivalent initial response rates. Del(17p) is frequently associated with a complex metaphase karyotype (CKT); the prognostic significance of CKT in ibrutinib-treated patients has not been reported. METHODS This study reviewed 88 patients treated for R/R CLL at The University of Texas MD Anderson Cancer Center with investigational ibrutinib-based regimens from 2010 to 2013. Pretreatment FISH and lipopolysaccharide-stimulated metaphase cytogenetic analysis were performed on bone marrow. RESULTS An adequate pretreatment metaphase karyotype was available for 56 of the 88 patients. The karyotype was complex in 21 of the 56 cases; 17 of the 21 had del(17p) according to FISH. The overall response rate, including partial remission with persistent lymphocytosis, was 94%; 18% had complete responses. In a multivariate analysis (MVA), only CKT was significantly associated with event-free survival (EFS; hazard ratio [HR], 6.6 [95% CI 1.7-25.6]; P = .006). Fludarabine-refractory CLL (HR, 6.9 [95% CI 1.8-27.1], P = .005) and CKT (HR 5.9 [95% CI 1.6-22.2], P = .008) were independently associated with inferior overall survival (OS) in MVA. Del(17p) by FISH was not significantly associated with EFS or OS in MVA. CONCLUSIONS CKT is a powerful predictor of outcomes for ibrutinib-treated patients with R/R CLL and may be a stronger predictor of biological behavior than del(17p) by FISH. Because of their relatively poor outcomes, patients with CKT are ideal candidates for studies of consolidative treatment strategies or novel treatment combinations.
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Affiliation(s)
- Philip A Thompson
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Susan M O'Brien
- Department of Leukemia, University of California, Irvine, California
| | - William G Wierda
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Alessandra Ferrajoli
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Francesco Stingo
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Susan C Smith
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jan A Burger
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Zeev Estrov
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Nitin Jain
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hagop M Kantarjian
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michael J Keating
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
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