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García-Sanz R, Tedeschi A. The Management of Relapsed or Refractory Waldenström's Macroglobulinemia. Hematol Oncol Clin North Am 2023; 37:727-749. [PMID: 37246089 DOI: 10.1016/j.hoc.2023.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Waldenström's macroglobulinemia (WM) is an immunoglobulin M monoclonal gammopathy produced by a bone marrow lymphoplasmacytic lymphoma, an indolent non-Hodgkin lymphoma in which the cure is still an unmet challenge. Combinations with alkylating agents, purine analogs, and monoclonal antibodies, Bruton tyrosine kinase, and proteasome inhibitors are used for the treatment of relapsed and refractory patients. Moreover, new additional agents can be seen on the horizon as potential effective therapies. No consensus on a preferred treatment in the relapsed setting is available yet.
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Affiliation(s)
- Ramón García-Sanz
- Department of Hematology, University Hospital of Salamanca, Research Biomedical Institute of Salamanca (IBSAL), Accelerator Project, Centro de Investigación Biomédica en Red-Cáncer (CIBERONC) CB16/12/00369 and Center for Cancer Research-IBMCC (USAL-CSIC), Paseo de San Vicente, 58-182, Salamanca 37007, Spain; Department of Hematology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Milano, Italy.
| | - Alessandra Tedeschi
- Department of Hematology, University Hospital of Salamanca, Research Biomedical Institute of Salamanca (IBSAL), Accelerator Project, Centro de Investigación Biomédica en Red-Cáncer (CIBERONC) CB16/12/00369 and Center for Cancer Research-IBMCC (USAL-CSIC), Paseo de San Vicente, 58-182, Salamanca 37007, Spain; Department of Hematology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Milano, Italy
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2
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Wang Q, Liu Q, Liang H, Gao W. Biclonal lymphoplasmacytic lymphoma/Waldenström macroglobulinemia associated with POEMS syndrome: A case report and literature review. Oncol Lett 2023; 25:97. [PMID: 36817054 PMCID: PMC9932574 DOI: 10.3892/ol.2023.13683] [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: 07/14/2022] [Accepted: 12/19/2022] [Indexed: 01/28/2023] Open
Abstract
Due to its unique clinical, immunological and molecular genetic characteristics, biclonal lymphoplasmacytic lymphoma/Waldenström macroglobulinemia (LPL/WM) with polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin changes (POEMS) syndrome is extremely rare in clinical practice, and there is no standard treatment for patients afflicted with this condition. In the present case report, a rare case of double LPL/WM with POEMS syndrome is described. The patient, a 65-year-old male, exhibited significant renal impairment and polylymphadenopathy. The patient was treated with rituximab and his symptoms were resolved following two courses of treatment. A review of the literature was performed, comparing the present case with previous cases. It is hoped that this case report will enable clinicians to gain a better understanding of this disease.
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Affiliation(s)
- Qiulan Wang
- The First College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000 P.R. China
| | - Qingbo Liu
- The First College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000 P.R. China
| | - Haonan Liang
- The First College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000 P.R. China
| | - Wenbin Gao
- The First College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000 P.R. China
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3
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Amaador K, Kersten MJ, Minnema MC, Vos JMI. Treatment of relapsed and refractory Waldenstrom Macroglobulinemia. Leuk Lymphoma 2023; 64:30-41. [PMID: 36282673 DOI: 10.1080/10428194.2022.2131423] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Waldenström's Macroglobulinemia (WM) is a rare type of indolent non-Hodgkin lymphoma (NHL) that remains incurable. Several effective agents such as monoclonal antibodies (in combination with chemotherapy), Bruton's tyrosine kinase inhibitors, proteasome inhibitors, and BCL2 inhibitors are (becoming) available for the treatment of relapsed and refractory WM. There is however no consensus on a preferred treatment in the relapsed setting. Choice of therapy in relapsed WM should be individualized by taking several treatment and patients characteristics into account, such as treatment duration, toxicity, age, comorbidities and MYD88L265P and CXCR4 mutational status. Due to better understanding of WM biology and the arrival of novel anti-lymphoma agents, the therapeutic options are increasing. Non-cytotoxic and fixed duration regimens, such as those explored in other indolent NHLs should be the focus of future clinical trials in WM.
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Affiliation(s)
- Karima Amaador
- Department of Hematology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Marie J Kersten
- Department of Hematology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Monique C Minnema
- Department of Hematology, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Josephine M I Vos
- Department of Hematology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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4
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Kaedbey R, Forward N, Sehn LH, Shafey M, Doucette S, Chen CI. A Canadian Perspective on the Treatment of Waldenström Macroglobulinemia. Curr Oncol 2022; 29:7122-7139. [PMID: 36290837 PMCID: PMC9600063 DOI: 10.3390/curroncol29100560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/17/2022] [Accepted: 09/26/2022] [Indexed: 01/13/2023] Open
Abstract
Waldenström macroglobulinemia (WM) is a slowly progressing B-cell non-Hodgkin lymphoma characterized by monoclonal IgM gammopathy in the blood and infiltration of the bone marrow by clonal lymphoplasmacytic cells. As an incurable disease, the goals for therapy for WM are to relieve symptoms, slow disease progression, prevent organ damage, and maintain quality of life. However, given the rarity of WM, clinical trials comparing treatments for WM are limited and there is no definitive standard of care. The selection of first-line WM therapy is thus based on patient factors, disease characteristics, and drug access, with bendamustine-rituximab and Bruton's tyrosine kinase (BTK) inhibitor therapy considered preferred treatments. Other treatments such as proteasome inhibitor- or purine analogue-based therapy, alternative chemoimmunotherapy, and autologous stem cell transplantation are generally reserved for the relapsed setting but may be used in rare circumstances in earlier lines of therapy. This paper summarizes the efficacy and safety of these WM therapies and discusses considerations for treatment from a Canadian perspective.
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Affiliation(s)
- Rayan Kaedbey
- Department of Hematology, Jewish General Hospital, Montreal, QC H3T 1E2, Canada
| | - Nicholas Forward
- Department of Medicine, Dalhousie University/Nova Scotia Health, Halifax, NS B3H 2Y9, Canada
| | - Laurie H. Sehn
- Department of Medical Oncology, BC Cancer Centre for Lymphoid Cancer, Vancouver, BC V5Z 4E6, Canada
| | - Mona Shafey
- Department of Medicine, Division of Hematology, Foothills Medical Centre and University of Calgary, Calgary, AB T2N 2T9, Canada
| | | | - Christine I. Chen
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, 610 University Avenue, Suite 6-225, Toronto, ON M5G 2M9, Canada
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5
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Elessa D, Debureaux PE, Villesuzanne C, Davi F, Bravetti C, Harel S, Talbot A, Oksenhendler E, Malphettes M, Thieblemont C, Moatti H, Maarek O, Arnulf B, Royer B. Inflammatory Waldenström's macroglobulinaemia: A French monocentric retrospective study of 67 patients. Br J Haematol 2022; 197:728-735. [PMID: 35393650 DOI: 10.1111/bjh.18157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/23/2022] [Accepted: 03/11/2022] [Indexed: 11/30/2022]
Abstract
Waldenström's macroglobulinaemia (WM) is a B-cell neoplasm resulting from bone marrow lymphoplasmacytic infiltration and monoclonal IgM secretion. Some patients present concomitant inflammatory syndrome attributed to the disease activity; we named this syndrome inflammatory WM (IWM). We retrospectively analysed all WM patients seen in a single tertiary referral centre from January 2007 to May 2021, and after excluding aetiologies for the inflammatory syndrome using a pertinent blood workup, including C-reactive protein (CRP), and imaging, we identified 67 (28%) IWM, 166 (68%) non-IWM, and nine (4%) WM with inflammatory syndrome of unknown origin. At treatment initiation, IWM patients had more severe anaemia (median Hb 90 vs 99 g/l; p < 0.01), higher platelet count (median 245 vs 196 × 109/l; p < 0.01) and comparable serum IgM level (median 24.9 vs 23.0 g/l; p = 0.28). A positive correlation was found between inflammatory and haematological responses (minimal response or better) (odds ratio 32.08; 95% confidence interval 8.80-98.03; p < 0.001). Overall survivals (OS) were similar (median OS: 17 vs 20 years; p = 0.11) but time to next treatment (TNT) was significantly shorter for IWM (TNT1: 1.6 vs 4.8 years, p < 0.0001). IWM mostly shared the same presentation and outcome as WM without inflammatory syndrome.
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Affiliation(s)
- Dikelele Elessa
- Department of Immuno Haematology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
- University of Paris, Paris, France
| | - Pierre-Edouard Debureaux
- Department of Immuno Haematology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
- University of Paris, Paris, France
| | - Camille Villesuzanne
- Department of Immuno Haematology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
- University of Paris, Paris, France
| | - Frederic Davi
- Laboratory of Haematology, Hopital Pitie-Salpetriere, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Clotilde Bravetti
- Laboratory of Haematology, Hopital Pitie-Salpetriere, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Stephanie Harel
- Department of Immuno Haematology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
- University of Paris, Paris, France
| | - Alexis Talbot
- Department of Immuno Haematology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
- University of Paris, Paris, France
| | - Eric Oksenhendler
- University of Paris, Paris, France
- Department of Clinical Immunology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Marion Malphettes
- University of Paris, Paris, France
- Department of Clinical Immunology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Catherine Thieblemont
- University of Paris, Paris, France
- Department of Haemato-Oncology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Hannah Moatti
- University of Paris, Paris, France
- Department of Haemato-Oncology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Odile Maarek
- University of Paris, Paris, France
- Laboratory of Haematology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Bertrand Arnulf
- Department of Immuno Haematology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
- University of Paris, Paris, France
| | - Bruno Royer
- Department of Immuno Haematology, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
- University of Paris, Paris, France
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Nivet T, Baptiste A, Belin L, Ghillani-Dalbin P, Algrin C, Choquet S, Lamy T, Morel V, Musset L, Roos-Weil D, Viala K, Leblond V, Baron M. Immunochemotherapy versus rituximab in anti-myelin-associated glycoprotein neuropathy: A report of 64 patients. Br J Haematol 2022; 198:298-306. [PMID: 35420717 DOI: 10.1111/bjh.18202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/28/2022] [Accepted: 04/01/2022] [Indexed: 01/22/2023]
Abstract
Monoclonal immunoglobulin M (IgM) anti-myelin-associated glycoprotein (MAG) neuropathy is a rare disabling condition, most commonly treated with rituximab monotherapy (R), which leads to neurological improvement in only 30%-50% of patients. The combination of rituximab plus chemotherapy has been proven to improve the level of responses. We studied the outcomes of anti-MAG neuropathy patients treated either by R, or by immunochemotherapy (ICT) in our centre, focusing on the incidence of the first neurological response evaluated by the modified Rankin scale (mRS). From 2011 to 2018, 64 patients were studied: 34 were treated with R and 30 with ICT. According to our treatment decision-making process, the median mRS was higher in the ICT group (mRS 2) than in the R group (mRS 1). At one year, improvements of the mRS rates were 46% and 18% in the ICT and R groups of patients respectively, with median times to response of eight and 13 months (p = 0.023). Adverse effects were higher in the ICT group: 62% vs 15% (p ˂ 0.01), all grades included. One secondary acute leukaemia occurred five years after treatment with ICT. In conclusion, ICT may be used as a valid option for patients with rapidly progressive and/or severe anti-MAG neuropathy symptoms.
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Affiliation(s)
- Thomas Nivet
- Department of Hematology, AP-HP, Sorbonne Université, Pitié- Salpêtrière Hospital, Paris, France.,Department of Hematology, CHU de Rennes, Rennes, France
| | - Amandine Baptiste
- Department of Epidemiology, Biostatistics and Clinical Research, AP-HP, Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France
| | - Lisa Belin
- Department of Epidemiology, Biostatistics and Clinical Research, AP-HP, Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France
| | - Pascale Ghillani-Dalbin
- Department of Immunochemistry, AP-HP, Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France
| | - Caroline Algrin
- Department of Hematology, Groupe Hospitalier mutualiste de Grenoble, Grenoble, France
| | - Sylvain Choquet
- Department of Hematology, AP-HP, Sorbonne Université, Pitié- Salpêtrière Hospital, Paris, France
| | - Thierry Lamy
- Department of Hematology, CHU de Rennes, Rennes, France
| | - Véronique Morel
- Department of Hematology, AP-HP, Sorbonne Université, Pitié- Salpêtrière Hospital, Paris, France
| | - Lucile Musset
- Department of Immunochemistry, AP-HP, Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France
| | - Damien Roos-Weil
- Department of Hematology, AP-HP, Sorbonne Université, Pitié- Salpêtrière Hospital, Paris, France
| | - Karine Viala
- Department of Neurophysiology, AP-HP, Sorbonne Université, Pitié- Salpêtrière Hospital, Paris, France
| | - Véronique Leblond
- Department of Hematology, AP-HP, Sorbonne Université, Pitié- Salpêtrière Hospital, Paris, France
| | - Marine Baron
- Department of Hematology, AP-HP, Sorbonne Université, Pitié- Salpêtrière Hospital, Paris, France
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Pratt G, El-Sharkawi D, Kothari J, D'Sa S, Auer R, McCarthy H, Krishna R, Miles O, Kyriakou C, Owen R. Diagnosis and management of Waldenström macroglobulinaemia-A British Society for Haematology guideline. Br J Haematol 2022; 197:171-187. [PMID: 35020191 DOI: 10.1111/bjh.18036] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 12/14/2022]
Abstract
SCOPE The objective of this guideline is to provide healthcare professionals with clear guidance on the management of patients with Waldenström macroglobulinaemia. In individual patients, circumstances may dictate an alternative approach. METHODOLOGY This guideline was compiled according to the British Society for Haematology (BSH) process at http://www.b-s-h.org.uk/guidelines/proposing-and-writing-a-new-bsh-guideline/. Recommendations are based on a review of the literature using Medline, Pubmed, Embase, Central, Web of Science searches from beginning of 2013 (since the publication of the previous guidelines) up to November 2021. The following search terms were used: Waldenström('s) macroglobulin(a)emia OR lymphoplasmacytic lymphoma, IgM(-related) neuropathy OR cold h(a)emagglutinin disease OR cold agglutinin disease OR cryoglobulin(a)emia AND (for group a only) cytogenetic OR molecular OR mutation OR MYD88 OR CXCR4, management OR treatment OR transfusion OR supportive care OR plasma exchange OR plasmapheresis OR chemotherapy OR bendamustine OR bortezomib OR ibrutinib OR fludarabine OR dexamethasone OR cyclophosphamide OR rituximab OR everolimus, bone marrow transplantation OR stem cell transplantation. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) nomenclature was used to evaluate levels of evidence and to assess the strength of recommendations. The GRADE criteria can be found at http://www.gradeworkinggroup.org. Review of the manuscript was performed by the British Society for Haematology (BSH) Guidelines Committee Haemato-Oncology Task Force, the BSH Guidelines Committee and the Haemato-Oncology sounding board of BSH. It was also on the members section of the BSH website for comment. It has also been reviewed by UK Charity WMUK; these organisations do not necessarily approve or endorse the contents.
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Affiliation(s)
- Guy Pratt
- University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | | | - Jaimal Kothari
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Shirley D'Sa
- University College London Hospitals NHS Foundation Trust, London, UK
| | | | - Helen McCarthy
- University Hospitals Dorset NHS Foundation Trust, Dorset, UK
| | - Rajesh Krishna
- University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Oliver Miles
- Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK
| | - Charalampia Kyriakou
- University College London Hospitals NHS Foundation Trust, London, UK
- London North West University Healthcare NHS Trust, London, UK
| | - Roger Owen
- The Leeds Teaching Hospitals NHS Trust, Leeds, UK
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Migkou M, Fotiou D, Gavriatopoulou M, Dimopoulos MA. Ibrutinib plus rituximab for the treatment of adult patients with Waldenström's macroglobulinemia: a safety evaluation. Expert Opin Drug Saf 2021; 20:987-995. [PMID: 34137347 DOI: 10.1080/14740338.2021.1945031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Introduction: Waldenström's macroglobulinemia (WM), an orphan disease, is a rare low-grade B-cell lymphoplasmacytic lymphoma with unique clinical features and monoclonal IgM production. Rituximab remains to this date the backbone of most commonly used treatment combinations. The FDA/EMA approval of Ibrutinib, the first-in-class BTK inhibitor, either as monotherapy or in combination with rituximab, changed the treatment landscape of the disease.Areas covered: Clinical trial data that demonstrate mode of action, efficacy, and the safety profile of each agent will be covered. A safety analysis of the combination treatment will also be performed to point out its high efficacy and overall favorable toxicity profile. The disadvantages and treatment gaps that still exist in the treatment of WM which relate to the need for long-term ibrutinib administration and the lack of deep remissions and subsequent disease relapse, will also be reviewed.Expert opinion: The ibrutinib-rituximab combination is both effective and safe, in the newly-diagnosed and relapsed-refractory disease setting. The optimal therapeutic approach for WM patients remains however to be established. The question of which combinatory (or synergistic) regimen can allow for a fixed-treatment duration, deep and durable responses with a safe toxicity profile is being addressed in ongoing clinical trials.
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Affiliation(s)
- Magdalini Migkou
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Despina Fotiou
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Gavriatopoulou
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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9
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Pessach I, Dimopoulos MA, Kastritis E. Managing complications secondary to Waldenström's macroglobulinemia. Expert Rev Hematol 2021; 14:621-632. [PMID: 34170207 DOI: 10.1080/17474086.2021.1947236] [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: 10/21/2022]
Abstract
Introduction: Waldenström's macroglobulinemia (WM) is a rare lymphoma characterized by the accumulation of IgM-secreting lymphoplasmacytic cells in the bone marrow and other organs. Clinical sequelae relate to direct tissue infiltration by malignant cells but also to the physicochemical and immunological properties of the monoclonal IgM, resulting in a variety of disease-related complications.Areas covered: This narrative review, following a thorough Pubmed search of pertinent published literature, discusses complications secondary to WM, related to direct tumor infiltration, monoclonal IgM circulation, and deposition, as well as other less common ones. The description and pathophysiology of these complications were described together with their specific management strategies and in the context of available treatment options for WM (anti-CD20 monoclonal antibody-based combinations, proteasome inhibitors, BTK inhibitors, and other emerging ones).Expert opinion: The availability of many novel, active and less toxic regimens for the treatment of WM allows the management of the disease with strategies that depend on clinical presentation and disease-related complications, age, toxicity considerations, and presence of comorbidities.
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Affiliation(s)
- Ilias Pessach
- Division of Hematology, Athens Medical Center, Athens, Greece
| | - Meletios A Dimopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
| | - Efstathios Kastritis
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
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10
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Gertz MA. Waldenström macroglobulinemia: 2021 update on diagnosis, risk stratification, and management. Am J Hematol 2021; 96:258-269. [PMID: 33368476 DOI: 10.1002/ajh.26082] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/22/2020] [Accepted: 12/22/2020] [Indexed: 02/06/2023]
Abstract
DISEASE OVERVIEW Waldenström macroglobulinemia (WM) is a lymphoplasmacytic lymphoma with immunoglobulin M (IgM) monoclonal protein. Clinical features include anemia, thrombocytopenia, hepatosplenomegaly, lymphadenopathy, and rarely hyperviscosity. DIAGNOSIS Presence of IgM monoclonal protein associated with ≥10% clonal lymphoplasmacytic cells in bone marrow confirms the diagnosis. The L265P mutation in MYD88 is detectable in more than 90% of patients and is found in the majority of IgM MGUS patients. RISK STRATIFICATION Age, hemoglobin level, platelet count, β2 microglobulin, LDH and monoclonal IgM concentrations are characteristics that are predictive of outcomes. RISK-ADAPTED THERAPY Not all patients who fulfill WM criteria require therapy; these patients can be observed until symptoms develop. Rituximab-monotherapy is inferior to regimens that combine it with bendamustine, an alkylating agent, a proteosome inhibitor, or ibrutinib. Purine nucleoside analogues are active but usage is declining in favor of less toxic alternatives. The preferred Mayo Clinic induction is rituximab and bendamustine. MANAGEMENT OF REFRACTORY DISEASE Bortezomib, fludarabine, thalidomide, everolimus, Bruton Tyrosine Kinase inhibitors, carfilzomib, lenalidomide, and bendamustine have all been shown to have activity in relapsed WM. Given WM's natural history, reduction of therapy toxicity is an important part of treatment selection.
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Affiliation(s)
- Morie A Gertz
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
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11
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Harrop S, Polliack A, Tam CS. Chronic lymphoproliferative disorders and secondary cancers in the era of purine analogues and beyond. Leuk Lymphoma 2020; 62:771-778. [PMID: 33222561 DOI: 10.1080/10428194.2020.1849682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The low grade chronic lymphoproliferative disorders include chronic lymphocytic leukemia, Waldenstroms macroglobulinemia, follicular lymphoma and hairy cell leukemia. Traditionally considered incurable, these disorders have been associated with a risk of haematological and solid organ malignancies secondary to both the underlying disease and the associated treatment. The introduction of purine analogues into treatment paradigms has seen increased rates of therapy related myelodysplasia reported and it remains unclear yet on the impact the targeted novel therapies play in the development of secondary cancers. We review the rates of secondary malignancy in the chronic lymphoproliferative disorders with a particular focus on the role of the purine analogues in the development of therapy related MDS.
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Affiliation(s)
- Sean Harrop
- Peter MacCallum Cancer Centre, Melbourne, Australia.,Epworth Healthcare, Melbourne, Australia
| | - Aaron Polliack
- Department of Haematology, Hadassah-Hebrew University Medical Centre, Jerusalem, Israel
| | - Constantine S Tam
- Peter MacCallum Cancer Centre, Melbourne, Australia.,University of Melbourne, Melbourne, Australia
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12
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Despina F, Meletios Athanasios D, Efstathios K. Emerging drugs for the treatment of Waldenström macroglobulinemia. Expert Opin Emerg Drugs 2020; 25:433-444. [PMID: 32955949 DOI: 10.1080/14728214.2020.1822816] [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: 10/23/2022]
Abstract
INTRODUCTION Waldenström's Macroglobulinemia (WM) is an indolent lymphoma with uniquely distinct and heterogenous clinical and genomic profiles. Clonal lymphoplasmacytic cells secrete monoclonal IgM. More than 90% of patients harbor a mutation in MYD88 gene, leading to the constitutive activation of downstream pathways, involving BTK-mediated signaling. The use of BTK inhibitors has changed the treatment landscape of WM and has paved the way for new approaches to therapy. AREAS COVERED WM is an orphan disease and ibrutinib is the only FDA/EMA approved agent. Currently established agent combinations will be reviewed with a focus on emerging therapeutic options. These include second generation inhibitors, agents that target other molecules in the BCR signaling pathway, CXCR4 inhibitors, proteasome inhibitors and anti-CD38 antibodies. The current research goal is to establish a combination that can induce deep and durable responses with minimal associated toxicity. In addition, agents that can overcome ibrutinib resistance or act in a synergistic manner with BTKi are under investigation. EXPERT OPINION The optimal therapeutic approach for WM patients is not currently established. The question of whether a combinatory (or synergistic) regimen to overcome resistance and allow for fixed- duration treatment will allow for deep/durable responses is being addressed in ongoing clinical trials.
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Affiliation(s)
- Fotiou Despina
- Plasma Cell Dyscrasia Unit, Department of Clinical Therapeutics, National and Kapodistrian University of Athens , Athens, Greece
| | - Dimopoulos Meletios Athanasios
- Plasma Cell Dyscrasia Unit, Department of Clinical Therapeutics, National and Kapodistrian University of Athens , Athens, Greece
| | - Kastritis Efstathios
- Plasma Cell Dyscrasia Unit, Department of Clinical Therapeutics, National and Kapodistrian University of Athens , Athens, Greece
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13
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How I treat Waldenström macroglobulinemia. Blood 2020; 134:2022-2035. [PMID: 31527073 DOI: 10.1182/blood.2019000725] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 08/07/2019] [Indexed: 12/14/2022] Open
Abstract
Waldenström macroglobulinemia (WM) is an uncommon lymphoma characterized by the infiltration of the bone marrow by clonal lymphoplasmacytic cells that produce monoclonal immunoglobulin M (IgM). The disease may have an asymptomatic phase, or patients may present with symptoms and complications resulting from marrow or other tissue infiltration, or from physicochemical or immunological properties of the monoclonal IgM. Diagnosis of WM has been clearly defined, and genetic testing for somatic mutation of MYD88L265P is a useful tool for differential diagnosis from other conditions. Specific criteria that define symptomatic disease that needs treatment offer clinical guidance. The treatment of WM has evolved rapidly, with treatment options that include anti-CD20 monoclonal antibody-based combinations and BTK inhibitors. The choice of therapy is based on the need for rapid disease control, presence of specific disease complications, and patient's age. With the use of BTK inhibitors, the use of continuous therapy has been introduced as another option over fixed-duration chemoimmunotherapy. In this review, we focus on different clinical scenarios and discuss treatment options, based on the available data.
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Zheng YH, Xu L, Cao C, Feng J, Tang HL, Shu MM, Gao GX, Chen XQ. Rituximab-based combination therapy in patients with Waldenström macroglobulinemia: a systematic review and meta-analysis. Onco Targets Ther 2019; 12:2751-2766. [PMID: 31043792 PMCID: PMC6469478 DOI: 10.2147/ott.s191179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background To evaluate the efficacy and safety of rituximab-based combination therapy for Waldenström macroglobulinemia (WM), we conducted this meta-analysis by pooling the rates of overall response, major response, complete response, and grade ≥3 hematological adverse events. Methods and materials We searched for relevant studies in the databases of PubMed, Web of Science, Embase, and the Cochrane Library. The qualitative assessment of all the included articles was conducted with reference to the Newcastle–Ottawa Scale. A random-effects model was selected to perform all pooled analyses. Results We identified altogether 22 studies with a total of 806 symptomatic WM patients enrolled. The pooled analysis indicated that the rituximab-based combination therapy achieved an overall response rate (ORR) of 84% (95% CI: 81%–87%), a major response rate (MRR) of 71% (95% CI: 66%–75%), and a complete response rate (CRR) of 7% (95% CI: 5%–10%). Rituximab plus conventional alkylating agents–containing chemotherapy (subgroup A) yielded an ORR of 86% (95% CI: 81%–89%), an MRR of 74% (95% CI: 69%–79%), and a CRR of 8% (95% CI: 4%–14%). Rituximab plus purine analog (subgroup B) resulted in an ORR of 85% (95% CI: 79%–89%), an MRR of 74% (95% CI: 66%–81%), and a CRR of 9% (95% CI: 4%–15%). Rituximab plus proteasome inhibitor (subgroup C) resulted in an ORR of 86% (95% CI: 81%–90%), an MRR of 68% (95% CI: 58%–77%), and a CRR of 7% (95% CI: 3%–11%). Rituximab plus immunomodulatory drug (subgroup D) attained relatively lower response rates, with an ORR of 67% (95% CI: 51%–81%), an MRR of 56% (95% CI: 27%–83%), and a CRR of 5% (95% CI: 1%–12%). Common grade ≥3 hematological adverse events consisted of neutropenia (33%, 95% CI: 17%–52%), thrombocytopenia (7%, 95% CI: 3%–11%), and anemia (5%, 95% CI: 3%–9%). Conclusion Rituximab in combination with an alkylating agent, purine analog, or proteasome inhibitor is highly effective with tolerable hematological toxicities for WM.
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Affiliation(s)
- Yan-Hua Zheng
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China, ;
| | - Li Xu
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China, ;
| | - Chun Cao
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China, ;
| | - Juan Feng
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China, ;
| | - Hai-Long Tang
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China, ;
| | - Mi-Mi Shu
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China, ;
| | - Guang-Xun Gao
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China, ;
| | - Xie-Qun Chen
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China, ;
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Gertz MA. Waldenström macroglobulinemia: 2019 update on diagnosis, risk stratification, and management. Am J Hematol 2019; 94:266-276. [PMID: 30328142 DOI: 10.1002/ajh.25292] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 09/17/2018] [Indexed: 12/30/2022]
Abstract
DISEASE OVERVIEW Waldenström macroglobulinemia (WM) is a lymphoplasmacytic lymphoma with immunoglobulin M (IgM) monoclonal protein. Clinical features include anemia, thrombocytopenia, hepatosplenomegaly, lymphadenopathy, and rarely hyperviscosity. DIAGNOSIS Presence of IgM monoclonal protein associated with ≥10% clonal lymphoplasmacytic cells in bone marrow confirms the diagnosis. The L265P mutation in MYD88 is detectable in >90% of patients and is found in the majority of IgM monoclonal gammopathy of undetermined significance patients. RISK STRATIFICATION Age, hemoglobin level, platelet count, β2 microglobulin, and monoclonal IgM concentrations are characteristics that are predictive of outcomes. RISK-ADAPTED THERAPY Not all patients who fulfill WM criteria require therapy; these patients can be observed until symptoms develop. Rituximab-monotherapy is inferior to regimens that combine it with bendamustine, an alkylating agent, a proteosome inhibitor, or ibrutinib. Purine nucleoside analogs are active but usage is declining for less toxic alternatives. The preferred Mayo Clinic induction is rituximab and bendamustine. Potential for stem cell transplantation should be considered in selected younger patients. MANAGEMENT OF REFRACTORY DISEASE Bortezomib, fludarabine, thalidomide, everolimus, ibrutinib, carfilzomib, lenalidomide, and bendamustine have all been shown to have activity in relapsed WM. Given WM's natural history, reduction of therapy toxicity is an important part of treatment selection.
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Affiliation(s)
- Morie A. Gertz
- Division of Hematology; Mayo Clinic; Rochester Minnesota
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Gertz MA. Selecting Initial Therapy for Newly Diagnosed Waldenström Macroglobulinemia. J Clin Oncol 2018; 36:2749-2751. [PMID: 30052482 DOI: 10.1200/jco.2018.79.3273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Tedeschi A, Conticello C, Rizzi R, Benevolo G, Laurenti L, Petrucci MT, Zaja F, Varettoni M. Diagnostic framing of IgM monoclonal gammopathy: Focus on Waldenström macroglobulinemia. Hematol Oncol 2018; 37:117-128. [DOI: 10.1002/hon.2539] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/12/2018] [Accepted: 07/12/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Alessandra Tedeschi
- Department of HematologyNiguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda Milan Italy
| | - Concetta Conticello
- Department of Clinical and Molecular Biomedicine, Haematology SectionUniversity of Catania Catania Italy
| | - Rita Rizzi
- Department of Emergency and Organ Transplantation, Hematology SectionUniversity of Bari Medical School Bari Italy
| | - Giulia Benevolo
- Division of HematologyAOU Città della Salute e della Scienza Torino Italy
| | - Luca Laurenti
- Department of HematologyCatholic University Hospital “A. Gemelli” Rome Italy
| | - Maria Teresa Petrucci
- Hematology, Department of Cellular Biotechnologies and Hematology“Sapienza” University Rome Italy
| | - Francesco Zaja
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari “Carlo Melzi”University of Udine Udine Italy
| | - Marzia Varettoni
- Division of HematologyFondazione IRCCS Policlinico S. Matteo Pavia Italy
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European myeloma network recommendations on diagnosis and management of patients with rare plasma cell dyscrasias. Leukemia 2018; 32:1883-1898. [DOI: 10.1038/s41375-018-0209-7] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 05/28/2018] [Accepted: 06/07/2018] [Indexed: 02/07/2023]
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García-Sanz R, Jiménez C, González De La Calle V, Sarasquete ME. A safety profile of medications used to treat Waldenström's macroglobulinemia. Expert Opin Drug Saf 2018; 17:609-621. [PMID: 29768934 DOI: 10.1080/14740338.2018.1477936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Waldenström's macroglobulinemia (WM) is a B-cell lymphoproliferative disease with serum IgM monoclonal component and bone marrow infiltration by lymphoplasmacytic lymphoma. Traditional therapy was based on that regimens used for closely related entities, such as chronic lymphocytic leukemia or multiple myeloma. This resulted in a lack of drugs specifically approved for WM, until the discovery of the Bruton Tyrosine Kinase (BTK) inhibitors. AREAS COVERED Two main therapeutic attitudes are possible: (1) conventional therapies based on combinations with alkylating agents or proteasome inhibitors with steroids and anti-CD20 monoclonal antibodies or (2) new approaches with BTK inhibitors, usually alone. Other possibilities such as BCL2 inhibitors, PI3K/AKT inhibitors, and others are currently under evaluation, but we will focus the review on the most consolidated approaches that are available for patients with WM at different stages of the disease. PubMed, Web of Science, and clinicaltrials.gov were queried for the keywords 'Waldenstrom macroglobulinemia' and the different drugs here evaluated through 1 February 2018. EXPERT OPINION Although WM has no many specific drugs, there are many possible therapies, including Ibrutinib, the first formally approved drug for this disorder.
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Affiliation(s)
- Ramón García-Sanz
- a Servicio de Hematología, Hospital Universitario de Salamanca , Instituto de Investigación Biomédica de Salamanca (IBSAL), Centro de Investigación del Cáncer de Salamanca, CIBERONC , Salamanca , Spain
| | - Cristina Jiménez
- a Servicio de Hematología, Hospital Universitario de Salamanca , Instituto de Investigación Biomédica de Salamanca (IBSAL), Centro de Investigación del Cáncer de Salamanca, CIBERONC , Salamanca , Spain
| | - Verónica González De La Calle
- a Servicio de Hematología, Hospital Universitario de Salamanca , Instituto de Investigación Biomédica de Salamanca (IBSAL), Centro de Investigación del Cáncer de Salamanca, CIBERONC , Salamanca , Spain
| | - María Eugenia Sarasquete
- a Servicio de Hematología, Hospital Universitario de Salamanca , Instituto de Investigación Biomédica de Salamanca (IBSAL), Centro de Investigación del Cáncer de Salamanca, CIBERONC , Salamanca , Spain
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Gertz MA. Waldenström macroglobulinemia treatment algorithm 2018. Blood Cancer J 2018; 8:40. [PMID: 29712895 PMCID: PMC5928091 DOI: 10.1038/s41408-018-0076-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 03/01/2018] [Accepted: 03/08/2018] [Indexed: 12/11/2022] Open
Abstract
Waldenström macroglobulinemia is often an indolent disorder, and many patients are candidates for observation with careful monitoring. For symptomatic patients, one must distinguish between those patients whose symptoms are related to immunologic manifestations associated with the IgM monoclonal protein and those that have symptoms related to progressive marrow and nodal infiltration with lymphoplasmacytic lymphoma. In Waldenström macroglobulinemia, the driver for therapy in the majority of patients is progressive anemia, secondary to bone marrow replacement by lymphoplasmacytic lymphoma. Recent introduction of MYD88 mutational analysis has been very useful for diagnostic purposes but is unclear what effect it might have on the prognosis or response rate to therapy. An algorithm is provided on the management of asymptomatic individuals and the sequence used for chemotherapeutic intervention of symptomatic patients.
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Affiliation(s)
- Morie A Gertz
- Division of Hematology, Mayo Clinic, 200 First Street, SW, Rochester, MN, 55905, USA.
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21
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Simon L, Baron M, Leblond V. How we manage patients with Waldenström macroglobulinaemia. Br J Haematol 2018; 181:737-751. [PMID: 29637541 DOI: 10.1111/bjh.15202] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Waldenström macroglobulinaemia (WM) is a rare, indolent B-cell lymphoproliferative disorder characterized by cellular involvement in bone marrow and monoclonal IgM production. Symptoms can be related to cytopenias, tumoural involvement, or IgM-related disorders. Somatic mutations in the MYD88 gene have been described in the majority of WM cases. The mutation is responsible for a gain-of-function and induces activation of nuclear factor-κB, for DNA transcription and cell survival. It seems that MYD88 mutation is associated with better prognosis and better response to some treatment. Treatments are started when WM is symptomatic, following systematic biological and morphological assessments. Therapeutic choice depends on age, frailty and urgent efficacy need. In first line, the majority of patients are treated with monoclonal anti-CD20 antibody-based regimens combined with cytotoxic chemotherapy. Rituximab, cyclophosphamide and dexamethasone remain the most commonly used regimen with good safety. Nevertheless, increasing numbers of new drugs are becoming available or are in development. Proteasome inhibitors, such as bortezomib or carfilzmib, showed good and rapid responses. Bruton tyrosine kinase (BTK) inhibitor demonstrated excellent results and is now available for relapse/refractory disease or as first line for some patients. This review highlights the diagnostic procedures and therapeutic approaches in WM.
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Affiliation(s)
- Laurence Simon
- Department of Haematology, APHP Hôpital Pitié-Salpétrière, Paris, France
| | - Marine Baron
- Department of Haematology, APHP Hôpital Pitié-Salpétrière, Paris, France
| | - Véronique Leblond
- Department of Haematology, APHP Hôpital Pitié-Salpétrière, Paris, France
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Mazzucchelli M, Frustaci AM, Deodato M, Cairoli R, Tedeschi A. Waldenstrom's Macroglobulinemia: An Update. Mediterr J Hematol Infect Dis 2018; 10:e2018004. [PMID: 29326801 PMCID: PMC5760071 DOI: 10.4084/mjhid.2018.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 11/13/2017] [Indexed: 12/19/2022] Open
Abstract
Waldenstrom Macroglobulinemia is a rare lymphoproliferative disorder with distinctive clinical features. Diagnostic and prognostic characterisation in WM significantly changed with the discovery of two molecular markers: MYD88 and CXCR4. Mutational status of these latter influences both clinical presentation and prognosis and demonstrated therapeutic implications. Treatment choice in Waldenstrom disease is strictly guided by patients age and characteristics, specific goals of therapy, the necessity for rapid disease control, the risk of treatment-related neuropathy, disease features, the risk of immunosuppression or secondary malignancies and potential for future autologous stem cell transplantation. The therapeutic landscape has expanded during the last years and the approval of ibrutinib, the first drug approved for Waldenstrom Macroglobulinemia, represents a significant step forward for a better management of the disease.
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Affiliation(s)
- Maddalena Mazzucchelli
- Department of Haematology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Milano
| | - Anna Maria Frustaci
- Department of Haematology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Milano
| | - Marina Deodato
- Department of Haematology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Milano
| | - Roberto Cairoli
- Department of Haematology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Milano
| | - Alessandra Tedeschi
- Department of Haematology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Milano
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Abstract
Waldenstrom Macroglobulinemia is a rare lymphoproliferative disorder with distinctive clinical features. Diagnostic and prognostic characterisation in WM significantly changed with the discovery of two molecular markers: MYD88 and CXCR4. Mutational status of these latter influences both clinical presentation and prognosis and demonstrated therapeutic implications. Treatment choice in Waldenstrom disease is strictly guided by patients age and characteristics, specific goals of therapy, the necessity for rapid disease control, the risk of treatment-related neuropathy, disease features, the risk of immunosuppression or secondary malignancies and potential for future autologous stem cell transplantation. The therapeutic landscape has expanded during the last years and the approval of ibrutinib, the first drug approved for Waldenstrom Macroglobulinemia, represents a significant step forward for a better management of the disease.
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Yun S, Johnson AC, Okolo ON, Arnold SJ, McBride A, Zhang L, Baz RC, Anwer F. Waldenström Macroglobulinemia: Review of Pathogenesis and Management. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2017; 17:252-262. [PMID: 28366781 PMCID: PMC5413391 DOI: 10.1016/j.clml.2017.02.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 02/26/2017] [Accepted: 02/28/2017] [Indexed: 11/20/2022]
Abstract
Waldenström macroglobulinemia (WM) is a low-grade B-cell clonal disorder characterized by lymphoplasmacytic bone marrow involvement associated with monoclonal immunoglobulin M. Although WM remains to be an incurable disease with a heterogeneous clinical course, the recent discovery of mutations in the MYD88 and CXCR4 genes further enhanced our understanding of its pathogenesis. Development of new therapies including monoclonal antibodies, proteasome inhibitors, and Bruton tyrosine kinase inhibitors have made the management of WM increasingly complex. Treatment should be tailored to the individual patient while considering many clinical factors. The clinical outcomes are expected to continue to improve, given the emergence of novel therapeutics and better understanding of the underlying pathogenesis.
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Affiliation(s)
- Seongseok Yun
- Department of Medicine, University of Arizona, Tucson, AZ; Department of Hematology and Oncology, H. Lee Moffitt Cancer Center, Tampa, FL
| | | | | | - Stacy J Arnold
- Division of Pathology, Department of Medicine, University of Arizona, Tucson, AZ
| | - Ali McBride
- College of Pharmacy, University of Arizona, Tucson, AZ
| | - Ling Zhang
- Department of Hematopathology and Laboratory Medicine, H. Lee Moffitt Cancer Center, Tampa, FL
| | - Rachid C Baz
- Department of Hematology and Oncology, H. Lee Moffitt Cancer Center, Tampa, FL
| | - Faiz Anwer
- Division of Hematology, Oncology, Blood, and Marrow Transplantation, Department of Medicine, University of Arizona, Tucson, AZ.
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Treatment recommendations from the Eighth International Workshop on Waldenström's Macroglobulinemia. Blood 2016; 128:1321-8. [PMID: 27432877 DOI: 10.1182/blood-2016-04-711234] [Citation(s) in RCA: 139] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 07/11/2016] [Indexed: 11/20/2022] Open
Abstract
Waldenström macroglobulinemia (WM) is a distinct B-cell lymphoproliferative disorder for which clearly defined criteria for the diagnosis, initiation of therapy, and treatment strategy have been proposed as part of the consensus panels of the International Workshop on Waldenström's Macroglobulinemia (IWWM). At IWWM-8, a task force for treatment recommendations was impanelled to review recently published and ongoing clinical trial data as well as the impact of new mutations (MYD88 and CXCR4) on treatment decisions, indications for B-cell receptor and proteasome inhibitors, and future clinical trial initiatives for WM patients. The panel concluded that therapeutic strategies in WM should be based on individual patient and disease characteristics. Chemoimmunotherapy combinations with rituximab and cyclophosphamide-dexamethasone, bendamustine, or bortezomib-dexamethasone provide durable responses and are still indicated in most patients. Approval of the BTK inhibitor ibrutinib in the United States and Europe represents a novel and effective treatment option for both treatment-naive and relapsing patients. Other B-cell receptor inhibitors, second-generation proteasome inhibitors (eg, carfilzomib), and mammalian target of rapamycin inhibitors are promising and may increase future treatment options. Active enrollment in clinical trials whenever possible was endorsed by the panel for most patients with WM.
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