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Gong Z, Khosla M, Vasudevan S, Mohan M. Current Status on Management of Primary Plasma Cell Leukemia. Curr Oncol Rep 2024:10.1007/s11912-024-01563-0. [PMID: 38954316 DOI: 10.1007/s11912-024-01563-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2024] [Indexed: 07/04/2024]
Abstract
PURPOSEOF REVIEW Plasma Cell Leukemia (PCL) is a very rare and highly aggressive form of plasma cell dyscrasia. This review seeks to evaluate the outcomes of PCL in the context of combination novel agent therapy and stem cell transplant (SCT) protocols. RECENT FINDINGS The diagnostic criteria for PCL have now evolved to include patients with 5% circulating PC. While management remains challenging, the incorporation of novel agent-based induction regimen has significantly improved early mortality and reduced attrition of patients proceeding to SCT. In recent prospective clinical trials, patients with PCL demonstrated an overall response rates of 69% to 86%, with progression-free and overall survival ranging from 13.8 to 15.5 months and 24.8 to 36.3 months, respectively. B-cell lymphoma 2 (BCL2) inhibitors, such as venetoclax present a targeted intervention opportunity for patients with PCL with t(11;14). Dedicated clinical trials tailored to PCL are crucial, integrating newer therapies in the frontline setting to further optimize responses and enhance overall outcomes.
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Affiliation(s)
- Zimu Gong
- Division of Hematology/Oncology, Houston Methodist Hospital, Houston, TX, USA
| | - Meera Khosla
- Department of Internal Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Sreeraj Vasudevan
- Department of Hematology, Amala Institute of Medical Sciences, Thrissur, Kerala, India
| | - Meera Mohan
- Division of Hematology/Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.
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Jin X, Jiang X, Li H, Shen K, Liu S, Chen M, Yang C, Han B, Zhuang J. Prognostic Implications of Circulating Plasma Cell Percentage in Multiple Myeloma and Primary Plasma Cell Leukemia Defined by New Criteria. Acta Haematol 2024:1-10. [PMID: 38626745 DOI: 10.1159/000538658] [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: 08/29/2023] [Accepted: 03/29/2024] [Indexed: 04/18/2024]
Abstract
INTRODUCTION The definition of primary plasma cell leukemia (pPCL) has been revised from ≥20% to ≥5% circulating plasma cells (CPC). However, the precise prognosis associated with CPC remains controversial. This study aimed to investigate prognostic biomarkers for myeloma patients based on CPC presence. METHODS A comprehensive analysis was conducted on 309 consecutive patients diagnosed with either multiple myeloma or pPCL, utilizing peripheral blood smears stained with Wright-Giemsa. RESULTS Patients were grouped by CPC percentage: 0% (221, 71.5%), 1-4% (49, 15.9%), 5-19% (16, 5.2%), ≥20% (23, 7.4%). CPC >5% correlated with unfavorable characteristics, including anemia, renal dysfunction, and advanced International Staging System. Common cytogenetic abnormalities such as 1q21 amplification, 17p deletion, and Myc rearrangement were prevalent among CPC-positive patients. Median progression-free survival (PFS) and overall survival (OS) were shorter in patients with CPC ≥5% (29.47 vs. 10.03 months; 64.10 vs. 12.30 months). Additionally, PFS and OS were shorter in CPC-positive patients without autologous hematopoietic stem cell transplantation (ASCT) and those with response < partial remission to the first-line regimen. Furthermore, an association emerged between soft tissue-related extramedullary disease and inferior PFS, while Myc rearrangement correlated with abbreviated OS. CONCLUSION Biological characteristics displayed greater aggressiveness in patients with positive CPC, leading to significantly shorter PFS and OS. The presence of CPC, ASCT, and overall response rate were independent prognostic factors. While no new threshold for pPCL with CPCs is proposed, Myc rearrangements and CPC positivity could serve as ultra-high-risk factors for multiple myeloma.
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Affiliation(s)
- Xianghong Jin
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China,
- Peking Union Medical College, Chinese Academy and Medical Sciences, Beijing, China,
| | - Xianyong Jiang
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
| | - Hui Li
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
| | - Kaini Shen
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
| | - Shuangjiao Liu
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
| | - Miao Chen
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
| | - Chen Yang
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
| | - Bing Han
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
| | - Junling Zhuang
- Department of Hematology, Peking Union Medical College Hospital, Beijing, China
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Bendari A, Khalaf RMA, Sham S, Al-Refai R, Vele O, Yurovitsky A. Plasma cell leukemia with soft tissue involvement; reporting a rare case. Leuk Res Rep 2024; 21:100411. [PMID: 38283701 PMCID: PMC10821604 DOI: 10.1016/j.lrr.2024.100411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 01/08/2024] [Indexed: 01/30/2024] Open
Abstract
Plasma cell leukemia (PCL) is a rare aggressive variant of multiple myeloma. PCL is diagnosed when clonal plasma cells constitute more than 20 % of the total circulating leukocytes or when the absolute plasma cell count exceeds 2 × 109 /L. Extramedullary involvement including cavity effusion is frequently seen at the time of diagnosis. However, soft tissue involvement is rarely encountered with only one published case in the English literature. We report a 74-year-old man, who presented with progressive shortness of breath over a few months. Laboratory studies showed leukocytosis (32 × 109 /L) with 26 % peripheral plasmacytoid cells and significantly elevated lactate dehydrogenase (> 2500 U/L). Serum protein electrophoresis detected a monoclonal IgG lambda band. A 7.4 cm left hilar mass, bilateral pleural effusion, and multiple fluorodeoxyglucose (FDG)-avid subcutaneous nodules in the pelvic and gluteal regions were demonstrated on imaging. Gluteal nodule biopsy revealed diffuse infiltrative CD138+ and MUM1+ cells with aberrant CD4, CD30, and BCL2 expression. The Ki-67 proliferation index was 70 %. Bone marrow biopsy showed sheets of atypical plasma cells with lambda-restriction and CD138 and MUM1 expression without cyclin D1 and CD20 expression. These cells comprise approximately 70-80 % of the bone marrow cellularity. A similar immunophenotype was demonstrated in peripheral and bone marrow flow cytometry. Molecular and cytogenetics showed an abnormal clone with a complex karyotype including monosomy 13 and 14q deletion. Overall, these findings are consistent with a plasma cell neoplasm. Our case study illustrates soft tissue involvement in PCL, which is rarely seen.
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Affiliation(s)
- Ahmed Bendari
- Department of Pathology and Laboratory Medicine, Lenox Hill Hospital, Northwell Health, NY, USA
| | | | - Sunder Sham
- Department of Pathology and Laboratory Medicine, Lenox Hill Hospital, Northwell Health, NY, USA
| | - Reham Al-Refai
- Department of Pathology and Laboratory Medicine, Lenox Hill Hospital, Northwell Health, NY, USA
| | - Oana Vele
- Department of Pathology and Laboratory Medicine, Lenox Hill Hospital, Northwell Health, NY, USA
| | - Alyssa Yurovitsky
- Department of Pathology and Laboratory Medicine, Lenox Hill Hospital, Northwell Health, NY, USA
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Guan J, Ma J, Chen B. Clinical and cytogenetic characteristics of primary and secondary plasma cell leukemia under the new IMWG definition criteria: a retrospective study. Hematology 2023; 28:2254556. [PMID: 37732631 DOI: 10.1080/16078454.2023.2254556] [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: 03/30/2023] [Accepted: 08/29/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Plasma cell leukemia (PCL) is a rare and aggressive plasma cell disorder, exhibiting a more unfavorable prognosis than multiple myeloma. PCL is classified into pPCL and sPCL. Recently, the IMWG has recommended new PCL definition criteria, which require the presence of ≥5% circulating plasma cells in peripheral blood smears. Due to its low incidence, research on pPCL and sPCL is limited. METHODS We conducted a retrospective study and analyzed clinical and cytogenetic data of pPCL and sPCL patients. Overall survival (OS) and progression-free survival (PFS) were assessed by the Kaplan-Meier method, and survival distributions were compared using the log-rank test. RESULTS This is a small cohort comprising 23 pPCL and 9 sPCL patients. Notably, sPCL patients showed a higher incidence of extramedullary infiltration and a higher percentage of bone marrow plasma cells (p = 0.015 and 0.025, respectively). Although no significant difference was found between the two groups in OS and PFS, a trend emerged suggesting a superior survival outcome for pPCL patients, with a higher cumulative 1-year PFS rate (38.3% vs. 13.3%) and a lower early mortality rate (mortality rate at 3 months: 15% vs. 33%). We also suggested that pPCL patients carrying t(11;14) may have a longer median survival time than individuals with other cytogenetic abnormalities, but this was not confirmed due to the small sample size. CONCLUSION Our study revealed clinical and cytogenetic features of pPCL and sPCL patients according to the new diagnostic criteria. The findings suggested a generally better prognosis for pPCL than sPCL and the likelihood of t(11;14) translocation acting as a favorable prognostic factor in pPCL. It is important to note that our study had a limited sample size, which may lead to bias. We hope well-designed studies can be conducted to provide more results.
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Affiliation(s)
- Jiaheng Guan
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Jinlong Ma
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Baoan Chen
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People's Republic of China
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Alencar RN, Martinez GA, Cordeiro MG, Velloso EDRP. Anaplastic multiple myeloma with amplification of the IGH-CCND1 gene fusion. Hematol Transfus Cell Ther 2023; 45:495-498. [PMID: 34862156 PMCID: PMC10627982 DOI: 10.1016/j.htct.2021.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/21/2021] [Accepted: 08/10/2021] [Indexed: 11/23/2022] Open
Affiliation(s)
- Rafael Nobrega Alencar
- Laboratório de Investigação Médica em Patogénese e Terapia Dirigida em Onco-Imuno-Hematologia, Faculdade de Medicina da Universidade de São Paulo (LIM-31 HCFMUSP), São Paulo, SP, Brazil
| | - Gracia Aparecida Martinez
- Laboratório de Investigação Médica em Patogénese e Terapia Dirigida em Onco-Imuno-Hematologia, Faculdade de Medicina da Universidade de São Paulo (LIM-31 HCFMUSP), São Paulo, SP, Brazil
| | - Maria Gabriella Cordeiro
- Laboratório de Investigação Médica em Patogénese e Terapia Dirigida em Onco-Imuno-Hematologia, Faculdade de Medicina da Universidade de São Paulo (LIM-31 HCFMUSP), São Paulo, SP, Brazil; Laboratório de Genética, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Elvira D R P Velloso
- Laboratório de Investigação Médica em Patogénese e Terapia Dirigida em Onco-Imuno-Hematologia, Faculdade de Medicina da Universidade de São Paulo (LIM-31 HCFMUSP), São Paulo, SP, Brazil; Laboratório de Genética, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
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van de Donk NWCJ, Minnema MC, van der Holt B, Schjesvold F, Wu KL, Broijl A, Roeloffzen WWH, Gadisseur A, Pietrantuono G, Pour L, van der Velden VHJ, Lund T, Offidani M, Grasso M, Giaccone L, Razawy W, Tacchetti P, Mancuso K, Silkjaer T, Caers J, Zweegman S, Hájek R, Benjamin R, Vangsted AJ, Boccadoro M, Gay F, Sonneveld P, Musto P. Treatment of primary plasma cell leukaemia with carfilzomib and lenalidomide-based therapy (EMN12/HOVON-129): final analysis of a non-randomised, multicentre, phase 2 study. Lancet Oncol 2023; 24:1119-1133. [PMID: 37717583 DOI: 10.1016/s1470-2045(23)00405-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/01/2023] [Accepted: 08/10/2023] [Indexed: 09/19/2023]
Abstract
BACKGROUND Primary plasma cell leukaemia is a rare and aggressive plasma cell disorder with a poor prognosis. The aim of the EMN12/HOVON-129 study was to improve the outcomes of patients with primary plasma cell leukaemia by incorporating carfilzomib and lenalidomide in induction, consolidation, and maintenance therapy. METHODS The EMN12/HOVON-129 study is a non-randomised, phase 2, multicentre study conducted at 19 academic centres and hospitals in seven European countries (Belgium, Czech Republic, Denmark, Italy, Norway, The Netherlands, and the UK) for previously untreated patients with primary plasma cell leukaemia aged 18 years or older. Inclusion criteria were newly diagnosed primary plasma cell leukaemia (defined as >2 ×109 cells per L circulating monoclonal plasma cells or plasmacytosis >20% of the differential white cell count) and WHO performance status 0-3. Patients aged 18-65 years (younger patients) and 66 years or older (older patients) were treated in age-specific cohorts and were analysed separately. Younger patients were treated with four 28-day cycles of carfilzomib (36 mg/m2 intravenously on days 1, 2, 8, 9, 15, and 16), lenalidomide (25 mg orally on days 1-21), and dexamethasone (20 mg orally on days 1, 2, 8, 9, 15, 16, 22, and 23). Carfilzomib-lenalidomide-dexamethasone (KRd) induction was followed by double autologous haematopoietic stem-cell transplantation (HSCT), four cycles of KRd consolidation, and then maintenance with carfilzomib (27 mg/m2 intravenously on days 1, 2, 15, and 16 for the first 12 28-day cycles, and then 56 mg/m2 on days 1 and 15 in all subsequent cycles) and lenalidomide (10 mg orally on days 1-21) until progression. Patients who were eligible for allogeneic HSCT, could also receive a single autologous HSCT followed by reduced-intensity conditioning allogeneic HSCT and then carfilzomib-lenalidomide maintenance. Older patients received eight cycles of KRd induction followed by maintenance therapy with carfilzomib and lenalidomide until progression. The primary endpoint was progression-free survival. The primary analysis population was the intention-to-treat population, irrespective of the actual treatment received. Data from all participants who received any study drug were included in the safety analyses. The trial was registered at www.trialregister.nl (until June 2022) and https://trialsearch.who.int/ as NTR5350; recruitment is complete and this is the final analysis. FINDINGS Between Oct 23, 2015, and Aug 5, 2021, 61 patients were enrolled and received KRd induction treatment (36 patients aged 18-65 years [20 (56%) were male and 16 (44%) female], and 25 aged ≥66 years [12 (48%) were male and 13 (52%) female]). With a median follow-up of 43·5 months (IQR 27·7-67·8), the median progression-free survival was 15·5 months (95% CI 9·4-38·4) for younger patients. For older patients, median follow-up was 32·0 months (IQR 24·7-34·6), and median progression-free survival was 13·8 months (95% CI 9·2-35·5). Adverse events were most frequently observed directly after treatment initiation, with infections (two of 36 (6%) younger patients and eight of 25 (32%) older patients) and respiratory events (two of 36 [6%] younger patients and four of 25 [16%] older patients) being the most common grade 3 or greater events during the first four KRd cycles. Treatment-related serious adverse events were reported in 26 (72%) of 36 younger patients and in 19 (76%) of 25 older patients, with infections being the most common. Treatment-related deaths were reported in none of the younger patients and three (12%) of the older patients (two infections and one unknown cause of death). INTERPRETATION Carfilzomib and lenalidomide-based therapy provides improved progression-free survival compared with previously published data. However, results remain inferior in primary plasma cell leukaemia compared with multiple myeloma, highlighting the need for new studies incorporating novel immunotherapies. FUNDING Dutch Cancer Society, Celgene (a BMS company), and AMGEN.
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Affiliation(s)
- Niels W C J van de Donk
- Department of Hematology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands; Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands.
| | - Monique C Minnema
- University Medical Center Utrecht, Department of Hematology, Utrecht University, Utrecht, Netherlands
| | - Bronno van der Holt
- HOVON Foundation, Rotterdam, Netherlands; Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Fredrik Schjesvold
- Oslo Myeloma Center, Department of Hematology, Oslo University Hospital and KG Jebsen Center for B cell malignancies, University of Oslo, Oslo, Norway
| | - Ka Lung Wu
- Department of Hematology, ZNA Stuivenberg, Antwerp, Belgium
| | - Annemiek Broijl
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Wilfried W H Roeloffzen
- Department of Hematology, University Medical Center Groningen, University Groningen, Groningen, Netherlands
| | - Alain Gadisseur
- Department of Haematology, Antwerp University Hospital, Edegem, Belgium
| | - Giuseppe Pietrantuono
- Unit of Hematology, Centro di Riferimento Oncologico della Basilicata, Rionero in Vulture, Italy
| | - Ludek Pour
- Department of Internal Medicine, Hematology and Oncology, University Hospital Brno, Brno, Czech Republic
| | | | | | | | | | - Luisa Giaccone
- Department of Oncology and Hematology, SSD Stem Cell Transplant Center, AOU Citta della Salute e della Scienza di Torino, Torino, Italy
| | | | - Paola Tacchetti
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematolgia Seràgnoli, Bologna, Italy
| | - Katia Mancuso
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematolgia Seràgnoli, Bologna, Italy; Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | | | - Jo Caers
- Department of Hematology, CHU Liege, Liege, Belgium
| | - Sonja Zweegman
- Department of Hematology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands; Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Roman Hájek
- Department of Hematooncology, University Hospital Ostrava, Ostrava, Czech Republic; Department of Hematooncology, Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
| | | | - Annette Juul Vangsted
- Department of Hematology, Rigshospitalet, Copenhagen University, Copenhagen, Denmark
| | | | - Francesca Gay
- Division of Hematology, Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Pieter Sonneveld
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Pellegrino Musto
- Department of Precision and Regenerative Medicine and Ionian Area, Aldo Moro University School of Medicine, and Hematology and Stem Cell Transplantation Unit, AOU Consorziale Policlinico, Bari, Italy
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Fu W, Huang A, Luo Y, Liu M, Tang G, Yang J, Ni X. Sequential autologous and allogeneic stem cell transplantation for treatment of primary plasma cell leukemia: A case report. Mol Clin Oncol 2023; 19:75. [PMID: 37614372 PMCID: PMC10442742 DOI: 10.3892/mco.2023.2671] [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: 03/21/2023] [Accepted: 07/20/2023] [Indexed: 08/25/2023] Open
Abstract
Primary plasma cell leukemia (pPCL) is a rare and aggressive form of plasma cell disorder, which accounts for ~70% of all PCL. Survival of pPCL remains poor, and is related with early mortality. There is no standard therapy for patients with pPCL. In the present study, a 26-year-old man who was diagnosed with pPCL was reported. The patient achieved stringent complete remission to the successful treatment of intensive chemotherapy combined with sequential autologous and allogeneic stem cell transplantation (SCT) followed by maintenance therapy with oral administration of ixazomib, thalidomide and dexamethasone (IRD regimen). Development of complex treatment algorithms that combine novel agents, SCT and post-transplantation remission strategies may translate into survival in patients with pPCL.
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Affiliation(s)
- Weijia Fu
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai 200433, P.R. China
| | - Aijie Huang
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai 200433, P.R. China
| | - Yanrong Luo
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai 200433, P.R. China
| | - Miaomiao Liu
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai 200433, P.R. China
| | - Gusheng Tang
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai 200433, P.R. China
| | - Jianmin Yang
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai 200433, P.R. China
| | - Xiong Ni
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai 200433, P.R. China
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Katodritou E, Kastritis E, Dalampira D, Delimpasi S, Spanoudakis E, Labropoulou V, Ntanasis-Stathopoulos I, Gkioka AI, Giannakoulas N, Kanellias N, Papadopoulou T, Sevastoudi A, Michalis E, Papathanasiou M, Kotsopoulou M, Sioni A, Triantafyllou T, Daiou A, Papadatou M, Kyrtsonis MC, Pouli A, Kostopoulos I, Verrou E, Dimopoulos MA, Terpos E. Improved survival of patients with primary plasma cell leukemia with VRd or daratumumab-based quadruplets: A multicenter study by the Greek myeloma study group. Am J Hematol 2023; 98:730-738. [PMID: 36869876 DOI: 10.1002/ajh.26891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 01/24/2023] [Accepted: 02/13/2023] [Indexed: 03/05/2023]
Abstract
We evaluated the efficacy and prognostic impact of bortezomib-lenalidomide triplet (VRd) or daratumumab-based quadruplets (DBQ) versus previous anti-myeloma therapies, that is, bortezomib standard combinations (BSC) or conventional chemotherapy (CT), in a large cohort of patients with primary plasma cell leukemia (pPCL), including those fulfilling the revised diagnostic criteria, that is, circulating plasma cells (cPCS): ≥5%; 110 pPCL patients (M/F: 51/59; median age 65 years, range: 44-86) out of 3324 myeloma patients (3%), registered in our database between 2001 and 2021, were studied; 37% had cPCS 5%-19%; 89% received novel combinations including DBQ (21%), VRd (16%) and BSC (52%); 35% underwent autologous stem cell transplantation. 83% achieved objective responses. Treatment with VRd/DBQ strongly correlated with a higher complete response rate (41% vs. 17%; p = .008). After a median follow-up of 51 months (95% CI: 45-56), 67 patients died. Early mortality was 3.5%. Progression-free survival was 16 months (95% CI: 12-19.8), significantly longer in patients treated with VRd/DBQ versus BSC/CT (25 months, 95% CI: 13.5-36.5 vs. 13 months 95% CI: 9-16.8; p = .03). Median overall survival (OS) was 29 months (95% CI: 19.6-38.3), significantly longer in patients treated with VRd/DBQ versus BSC/CT (not reached vs. 20 months, 95% CI: 14-26; 3-year OS: 70% vs. 32%, respectively; p < .001; HzR: 3.88). In the multivariate analysis VRd/DBQ therapy, del17p(+) and PLT <100.000/μL, independently predicted OS (p < .05). Our study has demonstrated that in the real-world setting, treatment with VRd/DBQ induces deep and durable responses and is a strong prognostic factor for OS representing currently the best therapeutic option for pPCL.
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Affiliation(s)
- Eirini Katodritou
- Department of Hematology, Theagenion Cancer Hospital, Thessaloniki, Greece
| | - Efstathios Kastritis
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitra Dalampira
- Department of Hematology, Theagenion Cancer Hospital, Thessaloniki, Greece
| | - Sosana Delimpasi
- Department of Hematology and Bone Marrow Transplantation Unit, Evangelismos Hospital, Athens, Greece
| | - Emmanouil Spanoudakis
- Department of Hematology, University Hospital of Alexandroupolis, Alexandroupoli, Greece
| | - Vasiliki Labropoulou
- Department of Internal Medicine, Division of Hematology, University of Patras Medical School, Patras, Greece
| | | | - Annita-Ioanna Gkioka
- First Department of Propaedeutic Internal Medicine, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikos Giannakoulas
- Department of Hematology, School of Medicine, University of Thessaly, Larisa, Greece
| | - Nikolaos Kanellias
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
| | | | | | - Eyrydiki Michalis
- Department of Hematology, "G. Gennimatas" General Hospital, Athens, Greece
| | - Maria Papathanasiou
- Department of Hematology and Bone Marrow Transplantation Unit, George Papanikolaou Hospital, Thessaloniki, Greece
| | | | - Anastasia Sioni
- Department of Hematology, Agios Savvas Cancer Hospital, Athens, Greece
| | | | - Aikaterini Daiou
- Department of Hematology, Theagenion Cancer Hospital, Thessaloniki, Greece
| | - Mavra Papadatou
- First Department of Propaedeutic Internal Medicine, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Marie-Christine Kyrtsonis
- First Department of Propaedeutic Internal Medicine, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Anastasia Pouli
- Department of Hematology, Agios Savvas Cancer Hospital, Athens, Greece
| | - Ioannis Kostopoulos
- Department of Biology, National and Kapodistrian University of Athens, Athens, Greece
| | - Evgenia Verrou
- Department of Hematology, Theagenion Cancer Hospital, Thessaloniki, Greece
| | | | - Evangelos Terpos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
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van de Donk NWCJ. How We Manage Newly Diagnosed Multiple Myeloma With Circulating Tumor Cells. J Clin Oncol 2023; 41:1342-1349. [PMID: 36450104 DOI: 10.1200/jco.22.02114] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors' suggested management approaches. The goal of this series is to help readers better understand how to apply the results of key studies, including those published in Journal of Clinical Oncology, to patients seen in their own clinical practice.Careful evaluation of peripheral blood for the presence of circulating plasma cells by morphologic assessment or by flow cytometric analysis is an essential component of the diagnostic workup in all patients with newly diagnosed multiple myeloma (MM) to timely differentiate between MM and primary plasma cell leukemia (pPCL), which is the most aggressive plasma cell dyscrasia. The improvement in survival over time is more modest in pPCL, compared with what has been achieved in MM. pPCL is currently defined by the presence of ≥ 5% circulating plasma cells. However, this cutoff is now challenged by new data, from three large cohorts of patients with newly diagnosed MM, showing that a threshold of 2% circulating tumor cells (CTCs) by flow cytometry can be used to identify a subset of patients with ultra-high-risk MM with comparable prognosis as patients with pPCL. These patients may benefit from more intensified first-line therapies, or from enrollment into specific clinical trials, designed for ultra-high-risk MM and pPCL. Apart from differentiating MM from pPCL, the quantification of CTCs is also useful for risk stratification in MM. The detection of CTCs above a threshold of 0.01%-0.07% (much lower than the threshold to define pPCL) appears to be an independent predictor of poor clinical outcomes in newly diagnosed MM. Additional studies, including transplant-ineligible patients or with incorporation of novel immunotherapies, are needed to identify a definitive prognostic CTC cutoff. The next step will be the incorporation of CTC detection into existing staging systems to improve risk stratification and treatment personalization.
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Affiliation(s)
- Niels W C J van de Donk
- Department of Hematology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.,Cancer Biology and Immunology, Cancer Center Amsterdam, Amsterdam, the Netherlands
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10
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Jurczyszyn A, Olszewska-Szopa M, Vesole DH. The Current State of Knowledge About Evolution of Multiple Myeloma to Plasma Cell Leukemia. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2023; 23:188-193. [PMID: 36593169 DOI: 10.1016/j.clml.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 11/20/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
Plasma cell leukemia is a rare form of multiple myeloma (MM). In contrast to de novo primary plasma cell leukemia (pPCL), which is very uncommon presentation of MM, there is increasing frequency of transformation to secondary plasma cell leukemia (sPCL) with increasing survival of patients (MM). The molecular basis of sPCL remains poorly understood sPCL is particularly aggressive and is associated with an extremely poor prognosis, constituting a major unmet medical need. High-quality data in sPCL regarding presentation, treatment and outcomes is limited. Herein we review the current state of knowledge on sPCL diagnostics, molecular biology, clinical characteristics, prognosis and reported treatment outcomes and the emergence of the new therapeutic strategies.
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Affiliation(s)
- Artur Jurczyszyn
- Hematology Department, Jagiellonian University Medical College, Cracow, Poland.
| | - Magdalena Olszewska-Szopa
- Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw, Poland
| | - David H Vesole
- Department of Medicine, John Theurer Cancer Center at Hackensack Meridian School of Medicine, Hackensack, NJ
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11
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Peña C, Riva E, Schutz N, Ramírez A, Vásquez J, Del Carpio D, Seehaus C, Ochoa P, Vengoa R, Duarte P, Martínez-Cordero H, Figueredo Y, Ríos RO, Ramírez J, Bove V, Roa M, Russo M, Espinoza M, Rodriguez G, Remaggi G, Enciso ME, Chandía M, Fantl D. Primary plasma cell leukemia in Latin America: demographic, clinical, and prognostic characteristics. A study of GELAMM group. Leuk Lymphoma 2023; 64:816-821. [PMID: 36695519 DOI: 10.1080/10428194.2023.2171266] [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: 01/26/2023]
Abstract
Primary plasma cell leukemia (pPCL) is an infrequent and aggressive plasma cell disorder. The prognosis is still very poor, and the optimal treatment remains to be established. A retrospective, multicentric, international observational study was performed. Patients from 9 countries of Latin America (LATAM) with a diagnosis of pPCL between 2012 and 2020 were included. 72 patients were included. Treatment was based on thalidomide in 15%, proteasome inhibitors (PI)-based triplets in 38% and chemotherapy plus IMIDs and/or PI in 29%. The mortality rate at 3 months was 30%. The median overall survival (OS) was 18 months. In the multivariate analysis, frontline PI-based triplets, chemotherapy plus IMIDs and/or PI therapy, and maintenance were independent factors of better OS. In conclusion, the OS of pPCL is still poor in LATAM, with high early mortality. PI triplets, chemotherapy plus IMIDs, and/or PI and maintenance therapy were associated with improved survival.
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Affiliation(s)
| | | | - Natalia Schutz
- Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | - Jule Vásquez
- Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú
| | | | | | - Paola Ochoa
- Instituto Alexander Fleming, Buenos Aires, Argentina
| | - Rosa Vengoa
- Hospital Alberto Sabogal Sologuren del Callao, Lima, Perú
| | | | | | | | | | | | | | | | - Moisés Russo
- Fundación Arturo López Pérez, Santiago de Chile.,Universidad Diego Portales, Santiago de Chile
| | | | | | | | | | | | - Dorotea Fantl
- Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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12
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Alwahsh M, Farhat J, Talhouni S, Hamadneh L, Hergenröder R. Bortezomib advanced mechanisms of action in multiple myeloma, solid and liquid tumors along with its novel therapeutic applications. EXCLI JOURNAL 2023; 22:146-168. [PMID: 36998701 PMCID: PMC10043448 DOI: 10.17179/excli2022-5653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 01/12/2023] [Indexed: 04/01/2023]
Abstract
Bortezomib (BTZ) is a first-in-class reversible and selective proteasome inhibitor. It inhibits the ubiquitin proteasome pathway that leads to the degradation of many intracellular proteins. Initially, BTZ was FDA approved for the treatment of refractory or relapsed multiple myeloma (MM) in 2003. Later, its usage was approved for patients with previously untreated MM. In 2006, BTZ was approved for the treatment of relapsed or refractory Mantle Cell Lymphoma (MCL) and, in 2014, for previously untreated MCL. BTZ has been extensively studied either alone or in combination with other drugs for the treatment of different liquid tumors especially in MM. However, limited data evaluated the efficacy and safety of using BTZ in patients with solid tumors. In this review, we will discuss the advanced and novel mechanisms of action of BTZ documented in MM, solid tumors and liquid tumors. Moreover, we will shed the light on the newly discovered pharmacological effects of BTZ in other prevalent diseases.
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Affiliation(s)
- Mohammad Alwahsh
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, P.O. Box 130, Amman, 11733, Jordan
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., 44139 Dortmund, Germany
- Institute of Pathology and Medical Research Center (ZMF), University Medical Center Mannheim, Heidelberg University, 68167 Mannheim, Germany
- *To whom correspondence should be addressed: Mohammad Alwahsh, Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, P.O. Box 130, Amman, 11733, Jordan, E-mail:
| | - Joviana Farhat
- Department of Epidemiology and Population Health, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, PO Box 127788, United Arab Emirates
| | - Shahd Talhouni
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, P.O. Box 130, Amman, 11733, Jordan
| | - Lama Hamadneh
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, P.O. Box 130, Amman, 11733, Jordan
| | - Roland Hergenröder
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., 44139 Dortmund, Germany
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13
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Yan W, Fan H, Xu J, Liu J, Li L, Du C, Deng S, Sui W, Hao M, Yi S, Zou D, Qiu L, Xu Y, An G. The clinical characteristics and prognosis of patients with primary plasma cell leukemia (pPCL) according to the new IMWG definition criteria. Leuk Lymphoma 2022; 63:2955-2964. [PMID: 35819882 DOI: 10.1080/10428194.2022.2098290] [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] [Indexed: 12/14/2022]
Abstract
Recently, the definition of primary plasma cell leukemia (pPCL) has been revised as the presence of circulating plasma cells (CPCs) ≥5% in peripheral blood smear. Consequently, the clinical features and prognosis of this aggressive disease can be truly identified by the larger patient cohort. Herein, we identified 158 new-defined pPCL patients among 2,266 MM patients (7.0%), and such prevalence doubled the previous estimate. Our study firstly provided solid support for the application of the new definition. We also found that cytopenias and adverse prognostic biomarkers were more common in new-defined pPCL compared with MM (p < 0.05). Besides, the patients receiving proteasome inhibitors based regimen in combination with stem cell transplantation could experience a considerable survival benefit. Strikingly, we showed that the presence of conventional high-risk cytogenetic abnormalities in pPCL didn't exert a great prognostic effect like MM, while elevated LDH reflecting tumor cells proliferation rate was the only independent predictor.
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Affiliation(s)
- Wenqiang Yan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Huishou Fan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Jingyu Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Jiahui Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Lingna Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Chenxing Du
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Shuhui Deng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Weiwei Sui
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Mu Hao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Shuhua Yi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Dehui Zou
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Lugui Qiu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Yan Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Gang An
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
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14
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Validation of the revised diagnostic criteria for primary plasma cell leukemia by the Korean Multiple Myeloma Working Party. Blood Cancer J 2022; 12:157. [PMID: 36404323 PMCID: PMC9676183 DOI: 10.1038/s41408-022-00755-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/25/2022] [Accepted: 11/10/2022] [Indexed: 11/22/2022] Open
Abstract
The International Myeloma Working Group has recently revised the diagnostic criteria for primary plasma cell leukemia (PCL) to circulating plasma cells (CPCs) ≥ 5% in a peripheral blood smear. The present study validated new criteria in patients with multiple myeloma or PCL diagnosed using the previous diagnostic criteria, who were administered immunomodulatory drugs or proteasome inhibitors as induction therapy. We analyzed the medical records of 1357 patients from eight hospitals in South Korea. The median age of the all patients was 64 years, and 187 (13.8%) had CPCs at diagnosis. Only 79 (5.8%) of the patients had ≥ 5% CPCs. The median overall survival (OS) of patients with CPCs ≥ 5% and ≥ 20% was similar, but had significantly inferior median progression-free survival (PFS) and median OS than those with CPCs < 5% (13.1 vs. 21.5 months, P < 0.001, and 21.5 vs. 60.9 months, P < 0.001, respectively). Primary PCL diagnosed using the revised criteria presented with higher total calcium levels and serum creatinine levels, lower platelet counts and frequent organomegaly and plasmacytoma at diagnosis. Univariate and multivariate analyses demonstrated that the presence of plasmacytoma and elevated serum β2-microglobulin were significantly associated with OS in primary PCL. In conclusion, the revised criterion of CPCs ≥ 5% in a peripheral blood smear is appropriate for PCL diagnosis.
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15
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[Update on biology of primary plasma cell leukemia]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2022; 43:603-607. [PMID: 36709141 PMCID: PMC9395563 DOI: 10.3760/cma.j.issn.0253-2727.2022.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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16
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Saburi M, Sakata M, Takata H, Miyazaki Y, Kawano K, Sasaki H, Abe M, Kohno K, Soga Y, Nagamatsu K, Ono K, Nakayama T, Ohtsuka E. Poor clinical outcome of elderly patients with primary plasma cell leukemia treated with novel agents: real-world experience. Leuk Lymphoma 2022; 63:2691-2695. [DOI: 10.1080/10428194.2022.2086250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Masuho Saburi
- Department of Hematology, Oita Prefectural Hospital, Oita City, Japan
| | - Masanori Sakata
- Department of Hematology, Oita Prefectural Hospital, Oita City, Japan
| | - Hiroyuki Takata
- Department of Hematology, Oita Prefectural Hospital, Oita City, Japan
| | - Yasuhiko Miyazaki
- Department of Hematology, Oita Prefectural Hospital, Oita City, Japan
| | - Katsuya Kawano
- Department of Clinical Laboratory Technology, Oita Prefectural Hospital, Oita City, Japan
| | - Hitohiro Sasaki
- Department of Hematology, Oita Kouseiren Tsurumi Hospital, Japan
| | - Miyuki Abe
- Department of Hematology, Oita Kouseiren Tsurumi Hospital, Japan
| | - Kazuhiro Kohno
- Department of Hematology, Oita Kouseiren Tsurumi Hospital, Japan
| | - Yasuhiro Soga
- Department of Clinical Laboratory, Oita Kouseiren Tsurumi Hospital, Japan
| | | | - Keiji Ono
- Department of Hematology, Almeida Memorial Hospital, Oita, Japan
| | | | - Eiichi Ohtsuka
- Department of Hematology, Oita Prefectural Hospital, Oita City, Japan
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17
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Jung SH, Lee JJ. Update on primary plasma cell leukemia. Blood Res 2022; 57:62-66. [PMID: 35483928 PMCID: PMC9057670 DOI: 10.5045/br.2022.2022033] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/24/2022] [Indexed: 01/01/2023] Open
Abstract
Plasma cell leukemia (PCL) is a rare and highly aggressive plasma cell neoplasm developing in 0.5?4% of patients with multiple myeloma (MM). The diagnostic criteria were recently revised from 20% to ≥5% of circulating plasma cells in peripheral blood smears. PCL is classified as primary or secondary; primary PCL is when it presents in patients with no MM. Primary PCL shows clinical and laboratory features at presentation that differ from MM and exhibits a dismal prognosis even with the use of effective agents against MM. Therefore, intensive chemotherapy should be initiated immediately after diagnosis, and autologous stem cell transplantation is recommended for transplant-eligible patients. Maintenance therapy after transplantation may reduce the rate of early relapses. We reviewed the definitions of PCL, revised diagnostic criteria, clinical features, and appropriate initial treatments for primary PCL.
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Affiliation(s)
- Sung-Hoon Jung
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
| | - Je-Jung Lee
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
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18
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Vekemans MC, Doyen C, Caers J, Wu K, Kentos A, Mineur P, Michaux L, Delforge M, Meuleman N. Recommendations on the management of multiple myeloma in 2020. Acta Clin Belg 2022; 77:445-461. [PMID: 33355041 DOI: 10.1080/17843286.2020.1860411] [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] [Indexed: 12/29/2022]
Abstract
With the introduction of immunomodulatory drugs, proteasome inhibitors, and anti-CD38 monoclonal antibodies, major improvements have been achieved in the treatment of multiple myeloma (MM), with a significant impact on the outcome of this disease. Different treatment combinations are now in use and other therapies are being developed. Based on an extensive review of the recent literature, we propose practical recommendations on myeloma management, to be used by hematologists as a reference for daily practice.
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Affiliation(s)
| | - Chantal Doyen
- Centre Hospitalier Universitaire de Namur, UCL, Yvoir, Belgium
| | - Jo Caers
- Centre Hospitalier Universitaire de Liège, Ulg, Liège, Belgium
| | - Kalung Wu
- Zienkenhuis Netwerk Antwerpen, Antwerp, Belgium
| | | | | | - Lucienne Michaux
- Universitair Ziekenhuis Leuven Gasthuisberg, KUL, Leuven, Belgium
| | - Michel Delforge
- Universitair Ziekenhuis Leuven Gasthuisberg, KUL, Leuven, Belgium
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19
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Hofste Op Bruinink D, Kuiper R, van Duin M, Cupedo T, van der Velden VHJ, Hoogenboezem R, van der Holt B, Beverloo HB, Valent ET, Vermeulen M, Gay F, Broijl A, Avet-Loiseau H, Munshi NC, Musto P, Moreau P, Zweegman S, van de Donk NWCJ, Sonneveld P. Identification of High-Risk Multiple Myeloma With a Plasma Cell Leukemia-Like Transcriptomic Profile. J Clin Oncol 2022; 40:3132-3150. [PMID: 35357885 PMCID: PMC9509081 DOI: 10.1200/jco.21.01217] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Primary plasma cell leukemia (pPCL) is an aggressive subtype of multiple myeloma, which is distinguished from newly diagnosed multiple myeloma (NDMM) on the basis of the presence of ≥ 20% circulating tumor cells (CTCs). A molecular marker for pPCL is currently lacking, which could help identify NDMM patients with high-risk PCL-like disease, despite not having been recognized as such clinically.
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Affiliation(s)
- Davine Hofste Op Bruinink
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands.,Department of Immunology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Rowan Kuiper
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands.,SkylineDx, Rotterdam, the Netherlands
| | - Mark van Duin
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Tom Cupedo
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | | | - Remco Hoogenboezem
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Bronno van der Holt
- HOVON Data Center, Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - H Berna Beverloo
- Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, the Netherlands
| | | | - Michael Vermeulen
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Francesca Gay
- Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, Torino, Italy
| | - Annemiek Broijl
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | | | - Nikhil C Munshi
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Pellegrino Musto
- "Aldo Moro" University School of Medicine, Unit of Hematology and Stem Cell Transplantation, AOUC Policlinico, Bari, Italy
| | - Philippe Moreau
- Hematology Department, University Hospital Hôtel-Dieu, Nantes, France
| | - Sonja Zweegman
- Department of Hematology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - Niels W C J van de Donk
- Department of Hematology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - Pieter Sonneveld
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
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20
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Primary Plasma Cell Leukemia displaying t(11;14) have specific genomic, transcriptional and clinical feature. Blood 2022; 139:2666-2672. [PMID: 35171994 DOI: 10.1182/blood.2021014968] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/02/2022] [Indexed: 11/20/2022] Open
Abstract
Primary plasma cell leukemia (pPCL) is an aggressive form of multiple myeloma (MM) that has not benefited from recent therapeutic advances in the field. Because very rare and heterogeneous, it remains poorly understood at the molecular level. To address this issue, we performed DNA and RNA sequencing of sorted plasma cells from a large cohort of 90 newly diagnosed pPCL, and compared to MM. We observed that pPCL presents a specific genomic landscape with a high prevalence of t(11;14) (about half) and high-risk genomic features such as del(17p), gain 1q, del(1p32). In addition, pPCL displays a specific transcriptome when compared to MM. We then aimed at specifically characterize pPCL with t(11;14). We observed that this sub-entity displayed significantly fewer adverse cytogenetic abnormalities. This translated into better overall survival when compared to pPCL without t(11;14) (39.2 months vs 17.9 months, p=0.002). Finally, pPCL with t(11;14) displayed a specific transcriptome, including differential expression of BCL2 family members. This study is the largest series of patients with pPCL reported so far.
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21
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[Efficacy and safety analysis of BCL-2 inhibitor in relapsed/refractory multiple myeloma with t (11;14) in a single center]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2022; 43:146-149. [PMID: 35381676 PMCID: PMC8980639 DOI: 10.3760/cma.j.issn.0253-2727.2022.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Vo K, Guan T, Banerjee R, Lo M, Young R, Shah N. Complete response following treatment of plasma cell leukemia with venetoclax and dexamethasone: A case report. J Oncol Pharm Pract 2022:10781552221074269. [PMID: 35084252 DOI: 10.1177/10781552221074269] [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: 11/16/2022]
Abstract
INTRODUCTION Plasma cell leukemia (PCL) is a rare but aggressive variant of multiple myeloma (MM) with a poor prognosis. Due to the limited number of prospective clinical trials studying PCL, treatment options are often extrapolated from data available for the treatment of MM. Venetoclax has recently demonstrated antimyeloma activity in patients with relapsed/refractory MM carrying the t(11;14) translocation. However, few cases have reported the analogous efficacy of venetoclax in PCL. CASE REPORT A 64-year-old Caucasian male developed relapsed PCL despite treatment with hyperCD (hyperfractionated cyclophosphamide and dexamethasone) and Dara-KRd (daratumumab, carfilzomib, lenalidomide, dexamethasone). Due to the refractory nature of his disease and the presence of a t(11:14) translocation, the patient was subsequently initiated on venetoclax 400 mg daily and dexamethasone 4 mg once weekly. MANAGEMENT AND OUTCOME The patient achieved a complete response by International Myeloma Working Group criteria three months after initiating venetoclax-dexamethasone, including a repeat bone marrow biopsy that showed no abnormal plasma cells. He successfully underwent consolidation with melphalan-based autologous stem cell transplantation. He remains disease-free 9 months after venetoclax initiation. DISCUSSION Combination all-oral therapy with venetoclax and dexamethasone can induce deep hematologic responses in patients with relapsed/refractory PCL carrying the t(11;14) translocation.
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Affiliation(s)
- Kim Vo
- Department of Pharmaceutical Services, 166668University of California San Francisco Medical Center, San Francisco, California, United States
| | - Tiffany Guan
- Department of Pharmaceutical Services, 166668University of California San Francisco Medical Center, San Francisco, California, United States
| | - Rahul Banerjee
- Division of Hematology/Oncology, Department of Medicine, 8785University of California San Francisco, San Francisco, California, United States
| | - Mimi Lo
- Department of Pharmaceutical Services, 166668University of California San Francisco Medical Center, San Francisco, California, United States
| | - Rebecca Young
- Department of Pharmaceutical Services, 166668University of California San Francisco Medical Center, San Francisco, California, United States
| | - Nina Shah
- Division of Hematology/Oncology, Department of Medicine, 8785University of California San Francisco, San Francisco, California, United States
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Papadhimitriou SI, Terpos E, Liapis K, Pavlidis D, Marinakis T, Kastritis E, Dimopoulos MA, Tsitsilonis OE, Kostopoulos IV. The Cytogenetic Profile of Primary and Secondary Plasma Cell Leukemia: Etiopathogenetic Perspectives, Prognostic Impact and Clinical Relevance to Newly Diagnosed Multiple Myeloma with Differential Circulating Clonal Plasma Cells. Biomedicines 2022; 10:biomedicines10020209. [PMID: 35203419 PMCID: PMC8869452 DOI: 10.3390/biomedicines10020209] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 12/21/2022] Open
Abstract
Plasma cell leukemia (PCL) is a rare and aggressive plasma cell dyscrasia that may appear as de-novo leukemia (pPCL) or on the basis of a pre-existing multiple myeloma (MM), called secondary plasma cell leukemia (sPCL). In this prospective study, we have applied a broad panel of FISH probes in 965 newly diagnosed MM (NDMM) and 44 PCL cases of both types to reveal the particular cytogenetic differences among the three plasma cell dyscrasias. In order to evaluate the frequency and patterns of clonal evolution, the same FISH panel was applied both at diagnosis and at the time of first relapse for 81 relapsed MM patients and both at MM diagnosis and during sPCL transformation for the 19 sPCL cases described here. pPCL was characterized by frequent MYC translocations and t(11;14) with a 11q13 breakpoint centered on the MYEOV gene, not commonly seen in MM. sPCL had a higher number of FISH abnormalities and was strongly associated with the presence of del(17p13), either acquired at the initial MM stage or as a newly acquired lesion upon leukemogenesis in the context of the apparent clonal evolution observed in sPCL. In clinical terms, sPCL showed a shorter overall survival than pPCL with either standard or high-risk (t(4;14) and/or t(14;16) and/or del(17p13) and/or ≥3 concomitant aberrations) abnormalities (median 5 months vs. 21 and 11 months respectively, p < 0.001), suggesting a prognostic stratification based on cytogenetic background. These observations proved relevant in the NDMM setting, where higher levels of circulating plasma cells (CPCs) were strongly associated with high-risk cytogenetics (median frequency of CPCs: 0.11% of peripheral blood nucleated cells for high-risk vs. 0.007% for standard-risk NDMM, p < 0.0001). Most importantly, the combined evaluation of CPCs (higher or lower than a cut-off of 0.03%), together with patients’ cytogenetic status, could be used for an improved prognostic stratification of NDMM patients.
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Affiliation(s)
- Stefanos I. Papadhimitriou
- Department of Laboratory Hematology, Athens Regional General Hospital “Georgios Gennimatas”, 11527 Athens, Greece; (S.I.P.); (D.P.)
| | - Evangelos Terpos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.T.); (E.K.); (M.-A.D.)
| | - Konstantinos Liapis
- Department of Haematology, University Hospital of Alexandroupolis, Democritus University of Thrace Medical School, 68100 Alexandroupolis, Greece;
| | - Dimitrios Pavlidis
- Department of Laboratory Hematology, Athens Regional General Hospital “Georgios Gennimatas”, 11527 Athens, Greece; (S.I.P.); (D.P.)
| | - Theodoros Marinakis
- Department of Clinical Hematology, Athens Regional General Hospital “Georgios Gennimatas”, 11527 Athens, Greece;
| | - Efstathios Kastritis
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.T.); (E.K.); (M.-A.D.)
| | - Meletios-Athanasios Dimopoulos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.T.); (E.K.); (M.-A.D.)
| | - Ourania E. Tsitsilonis
- Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, Ilissia, 15784 Athens, Greece;
| | - Ioannis V. Kostopoulos
- Department of Laboratory Hematology, Athens Regional General Hospital “Georgios Gennimatas”, 11527 Athens, Greece; (S.I.P.); (D.P.)
- Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, Ilissia, 15784 Athens, Greece;
- Correspondence: or ; Tel.: +30-210-727-4929; Fax: +30-210-727-4635
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24
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Plasma cell leukemia: retrospective review of cases at monter cancer center/northwell health cancer institute, 2014-2019. Curr Probl Cancer 2022; 46:100831. [DOI: 10.1016/j.currproblcancer.2021.100831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/09/2021] [Accepted: 12/15/2021] [Indexed: 11/23/2022]
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25
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Primary plasma cell leukemia: consensus definition by the International Myeloma Working Group according to peripheral blood plasma cell percentage. Blood Cancer J 2021; 11:192. [PMID: 34857730 PMCID: PMC8640034 DOI: 10.1038/s41408-021-00587-0] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/10/2021] [Accepted: 11/15/2021] [Indexed: 11/08/2022] Open
Abstract
Primary plasma cell leukemia (PCL) has a consistently ominous prognosis, even after progress in the last decades. PCL deserves a prompt identification to start the most effective treatment for this ultra-high-risk disease. The aim of this position paper is to revisit the diagnosis of PCL according to the presence of circulating plasma cells in patients otherwise meeting diagnostic criteria of multiple myeloma. We could identify two retrospective series where the question about what number of circulating plasma cells in peripheral blood should be used for defining PCL. The presence of ≥5% circulating plasma cells in patients with MM had a similar adverse prognostic impact as the previously defined PCL. Therefore, PCL should be defined by the presence of 5% or more circulating plasma cells in peripheral blood smears in patients otherwise diagnosed with symptomatic multiple myeloma.
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26
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Ahaneku H, Gupta R, Anusim N, Umeh CA, Anderson J, Jaiyesimi I. Leucocytoclastic Vasculitis, Cryoglobulinemia, or Plasma Cell Leukemia: A Diagnostic Conundrum. Cureus 2021; 13:e16832. [PMID: 34513422 PMCID: PMC8409693 DOI: 10.7759/cureus.16832] [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] [Accepted: 07/24/2021] [Indexed: 11/06/2022] Open
Abstract
Plasma cell leukemia is rare and could be life-threatening. Even rarer and equally life-threatening is cryoglobulinemia. Both of them occurring together paints a grim clinical picture. We present the case of a 63-year-old male with plasma cell leukemia complicated by cryoglobulinemia with skin lesions. The report briefly reviews the clinical and diagnostic characteristics of plasma cell leukemia and well as available treatment options. It also highlights the need to consider non-chemotherapy-based regimens and clinical trials in the care of plasma cell leukemia patients.
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Affiliation(s)
| | - Ruby Gupta
- Hematology and Oncology, Beaumont Health, Royal Oak, USA
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27
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Gowin K, Skerget S, Keats JJ, Mikhael J, Cowan AJ. Plasma cell leukemia: A review of the molecular classification, diagnosis, and evidenced-based treatment. Leuk Res 2021; 111:106687. [PMID: 34425325 DOI: 10.1016/j.leukres.2021.106687] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/22/2021] [Accepted: 08/15/2021] [Indexed: 12/11/2022]
Abstract
Plasma cell leukemia is a rare and aggressive plasma cell dyscrasia associated with dismal outcomes. It may arise de novo, primary plasma cell leukemia, or evolve from an antecedent diagnosis of multiple myeloma, secondary plasma cell leukemia. Despite highly effective therapeutics, survival for plasma cell leukemia patients remains poor. Molecular knowledge of plasma cell leukemia has recently expanded with use of gene expression profiling and whole exome sequencing, lending new insights into prognosis and therapeutic development. In this review, we describe the molecular knowledge, clinical characteristics, evidenced-based therapeutic approaches and treatment outcomes of plasma cell leukemia.
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Affiliation(s)
- Krisstina Gowin
- University of Arizona, Department of Bone Marrow Transplant and Cellular Therapy, Tucson, AZ, United States.
| | - Sheri Skerget
- Translational Genomics Research Institute (TGen), Integrated Cancer Genomics Division, Phoenix, AZ, United States
| | - Jonathan J Keats
- Translational Genomics Research Institute (TGen), Integrated Cancer Genomics Division, Phoenix, AZ, United States
| | - Joseph Mikhael
- Translational Genomics Research Institute (TGen), Applied Cancer Research and Drug Discovery Division, Phoenix, AZ, United States
| | - Andrew J Cowan
- University of Washington, Department of Hematology Oncology, Seattle, WA, United States
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28
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Slomovich S, Oh KT, Diakos NA, Restaino SW, Clerkin KJ, Latif F, Miyauchi JT, Lee A, Sayer GT, Uriel N. A Rare Case of Disseminated Tuberculosis and Hematological Malignancy in a Heart Transplant Recipient. Transplant Proc 2021; 53:2626-2629. [PMID: 34399971 DOI: 10.1016/j.transproceed.2021.07.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/25/2021] [Accepted: 07/19/2021] [Indexed: 02/02/2023]
Abstract
A 77-year-old man who underwent a heart transplant 7 years ago presented with multiple bloody bowel movements. Endoscopic and histologic evaluation revealed chronic active ileitis, granulomatous inflammation, multinucleated giant cells, and a rare, equivocal acid-fast bacterium in the terminal ileum. Positive sputum cultures for Mycobacterium tuberculosis and acid-fast bacilli established a diagnosis of intestinal tuberculosis, and RIPE (rifabutin, isoniazid, pyrazinamide, ethambutol) therapy was initiated. Elevated IgG levels on quantitative immunoglobulin testing and a bone marrow biopsy specimen of ≥60% plasma cells confirmed the diagnosis of multiple myeloma that later transformed into its aggressive form, plasma cell leukemia. Induction chemotherapy was initiated; however, the patient experienced retroperitoneal bleeding and pancytopenias, limiting the continuation of chemotherapy, and as a result, the patient was transitioned to palliative care.
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Affiliation(s)
- Sharon Slomovich
- Division of Cardiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Kyung Taek Oh
- Division of Cardiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Nikolaos A Diakos
- Division of Cardiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Susan W Restaino
- Division of Cardiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Kevin J Clerkin
- Division of Cardiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Farhana Latif
- Division of Cardiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Jeremy T Miyauchi
- Division of Hematopathology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
| | - Anna Lee
- Division of Gastrointestinal, Liver, and Pancreas Pathology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
| | - Gabriel T Sayer
- Division of Cardiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Nir Uriel
- Division of Cardiology, Columbia University Irving Medical Center, New York, New York, USA.
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29
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Huang R, Zhou PK. DNA damage repair: historical perspectives, mechanistic pathways and clinical translation for targeted cancer therapy. Signal Transduct Target Ther 2021; 6:254. [PMID: 34238917 PMCID: PMC8266832 DOI: 10.1038/s41392-021-00648-7] [Citation(s) in RCA: 255] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/28/2021] [Accepted: 05/13/2021] [Indexed: 02/06/2023] Open
Abstract
Genomic instability is the hallmark of various cancers with the increasing accumulation of DNA damage. The application of radiotherapy and chemotherapy in cancer treatment is typically based on this property of cancers. However, the adverse effects including normal tissues injury are also accompanied by the radiotherapy and chemotherapy. Targeted cancer therapy has the potential to suppress cancer cells' DNA damage response through tailoring therapy to cancer patients lacking specific DNA damage response functions. Obviously, understanding the broader role of DNA damage repair in cancers has became a basic and attractive strategy for targeted cancer therapy, in particular, raising novel hypothesis or theory in this field on the basis of previous scientists' findings would be important for future promising druggable emerging targets. In this review, we first illustrate the timeline steps for the understanding the roles of DNA damage repair in the promotion of cancer and cancer therapy developed, then we summarize the mechanisms regarding DNA damage repair associated with targeted cancer therapy, highlighting the specific proteins behind targeting DNA damage repair that initiate functioning abnormally duo to extrinsic harm by environmental DNA damage factors, also, the DNA damage baseline drift leads to the harmful intrinsic targeted cancer therapy. In addition, clinical therapeutic drugs for DNA damage and repair including therapeutic effects, as well as the strategy and scheme of relative clinical trials were intensive discussed. Based on this background, we suggest two hypotheses, namely "environmental gear selection" to describe DNA damage repair pathway evolution, and "DNA damage baseline drift", which may play a magnified role in mediating repair during cancer treatment. This two new hypothesis would shed new light on targeted cancer therapy, provide a much better or more comprehensive holistic view and also promote the development of new research direction and new overcoming strategies for patients.
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Affiliation(s)
- Ruixue Huang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Ping-Kun Zhou
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, AMMS, Beijing, China.
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30
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Visram A, Suska A, Jurczyszyn A, Gonsalves WI. Practical management and assessment of primary plasma cell leukemia in the novel agent era. Cancer Treat Res Commun 2021; 28:100414. [PMID: 34174530 DOI: 10.1016/j.ctarc.2021.100414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 05/08/2021] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Affiliation(s)
- A Visram
- University of Ottawa, Ottawa Hospital Research Institute, Ottawa, ON, Canada; Division of Hematology, Mayo Clinic, Rochester, MN, United States
| | - A Suska
- Department of Hematology, Jagiellonian University Medical College, Kopernika 17, Krakow 31-501, Poland
| | - A Jurczyszyn
- Department of Hematology, Jagiellonian University Medical College, Kopernika 17, Krakow 31-501, Poland
| | - W I Gonsalves
- Division of Hematology, Mayo Clinic, Rochester, MN, United States.
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31
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Platelet-targeted hyperfunctional FIX gene therapy for hemophilia B mice even with preexisting anti-FIX immunity. Blood Adv 2021; 5:1224-1238. [PMID: 33646304 DOI: 10.1182/bloodadvances.2020004071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/16/2021] [Indexed: 01/19/2023] Open
Abstract
Gene therapy may lead to a cure for hemophilia B (HB) if it is successful. Data from clinical trials using adeno-associated virus (AAV)-mediated liver-targeted FIX gene therapy are very encouraging. However, this protocol can be applied only to adults who do not have liver disease or anti-AAV antibodies, which occur in 30% to 50% of individuals. Thus, developing a protocol that can be applied to all HB patients is desired. Our previous studies have demonstrated that lentivirus-mediated platelet-specific FIX (2bF9) gene therapy can rescue bleeding diathesis and induce immune tolerance in FIXnull mice, but FIX expression was only ∼2% to 3% in whole blood. To improve the efficacy, we used a codon-optimized hyperfunctional FIX-Padua (2bCoF9R338L) to replace the 2bF9 cassette, resulting in 70% to 122% (35.08-60.77 mU/108 platelets) activity levels in 2bCoF9R338L-transduced FIXnull mice. Importantly, sustained hyperfunctional platelet-FIX expression was achieved in all 2bCoF9R338L-transduced highly immunized recipients with activity levels of 18.00 ± 9.11 and 9.36 ± 12.23 mU/108 platelets in the groups treated with 11 Gy and 6.6 Gy, respectively. The anti-FIX antibody titers declined with time, and immune tolerance was established after 2bCoF9R338L gene therapy. We found that incorporating the proteasome inhibitor bortezomib into preconditioning can help eliminate anti-FIX antibodies. The bleeding phenotype in 2bCoF9R338L-transduced recipients was completely rescued in a tail bleeding test and a needle-induced knee joint injury model once inhibitors dropped to undetectable. The hemostatic efficacy in 2bCoF9R338L-transduced recipients was further confirmed by ROTEM and thrombin generation assay (TGA). Together, our studies suggest that 2bCoF9R338L gene therapy can be a promising protocol for all HB patients, including patients with inhibitors.
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32
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Dimopoulos MA, Moreau P, Terpos E, Mateos MV, Zweegman S, Cook G, Delforge M, Hájek R, Schjesvold F, Cavo M, Goldschmidt H, Facon T, Einsele H, Boccadoro M, San-Miguel J, Sonneveld P, Mey U. Multiple myeloma: EHA-ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up †. Ann Oncol 2021; 32:309-322. [PMID: 33549387 DOI: 10.1016/j.annonc.2020.11.014] [Citation(s) in RCA: 327] [Impact Index Per Article: 109.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/12/2020] [Accepted: 11/15/2020] [Indexed: 02/07/2023] Open
Affiliation(s)
- M A Dimopoulos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - P Moreau
- Department of Hematology, University Hospital Hôtel-Dieu, Nantes, France
| | - E Terpos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - M V Mateos
- University Hospital of Salamanca, IBSAL, Cancer Research Center, Salamanca, Spain
| | - S Zweegman
- Department of Hematology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - G Cook
- Leeds Cancer Centre and University of Leeds, Leeds, UK
| | - M Delforge
- Department of Hematology, University Hospital Leuven, Leuven, Belgium
| | - R Hájek
- Faculty of Medicine, University Hospital Ostrava, Ostrava, Czech Republic
| | - F Schjesvold
- Oslo Myeloma Center, Oslo University Hospital, Oslo; KG Jebsen Center for B Cell Malignancies, University of Oslo, Oslo, Norway
| | - M Cavo
- Seràgnoli Institute of Hematology, Bologna University School of Medicine, Bologna, Italy
| | - H Goldschmidt
- University Hospital Heidelberg, Internal Medicine V and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - T Facon
- Hôpital Claude Huriez, Lille University Hospital, Lille, France
| | - H Einsele
- Department of Internal Medicine II, University Hospital Wurzburg, Wurzburg, Germany
| | - M Boccadoro
- Division of Hematology, University of Torino, AOU Città della Salute e della Scienza di Torino, Torino, Italy
| | - J San-Miguel
- Clinica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona, Spain
| | - P Sonneveld
- Erasmus Medical Center Cancer Institute, Rotterdam, Netherlands
| | - U Mey
- Department of Oncology and Hematology, Kantonsspital Graubünden, Chur, Switzerland
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33
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Nandakumar B, Kumar SK, Dispenzieri A, Buadi FK, Dingli D, Lacy MQ, Hayman SR, Kapoor P, Leung N, Fonder A, Hobbs M, Hwa YL, Muchtar E, Warsame R, Kourelis TV, Russell S, Lust JA, Lin Y, Siddiqui M, Go RS, Jevremovic D, Kyle RA, Gertz MA, Rajkumar SV, Gonsalves WI. Clinical Characteristics and Outcomes of Patients With Primary Plasma Cell Leukemia in the Era of Novel Agent Therapy. Mayo Clin Proc 2021; 96:677-687. [PMID: 33673918 PMCID: PMC7939118 DOI: 10.1016/j.mayocp.2020.06.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/02/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To evaluate the clinical outcomes of patients with primary plasma cell leukemia (pPCL) defined by 5% or greater clonal circulating plasma cells on peripheral blood smear and treated with novel agent induction therapies. PATIENTS AND METHODS A cohort of 68 patients with pPCL diagnosed at the Mayo Clinic in Rochester, Minnesota, from January 1, 2000, to December 31, 2019, and treated with novel agent induction therapies was evaluated. RESULTS The median follow-up was 46 (95% CI, 41 to 90) months. The median bone marrow plasma cell content was 85% (range, 10% to 100%) and median clonal circulaitng plasma cell percentage on the peripheral blood smear was 26% (range, 5% to 93%). There was a preponderance of t(11;14) primary cytogenetic abnormality in this cohort. The median time to next therapy (TTNT) and overall survival (OS) for all patients with pPCL patients in this cohort was 13 (95% CI, 9 to 17) and 23 (95% CI, 19 to 38) months, respectively. However, when stratified by cytogenetic risk, the median TTNT and OS were 16 and 51 months for standard risk vs 9 and 19 months for high risk (P=.01 for OS). CONCLUSION Primary plasma cell leukemia remains an aggressive disease with poor prognosis despite novel agent-based therapies. Some patients have better than expected survival and this phenomenon may be influenced by the absence of high-risk cytogenetics. Newer treatment regimens are needed to improve the prognosis of this devastating disease.
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Affiliation(s)
| | | | | | | | - David Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN
| | | | | | | | - Nelson Leung
- Division of Hematology, Mayo Clinic, Rochester, MN; Department of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
| | - Amie Fonder
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Miriam Hobbs
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Yi Lisa Hwa
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Eli Muchtar
- Division of Hematology, Mayo Clinic, Rochester, MN
| | | | | | | | - John A Lust
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Yi Lin
- Division of Hematology, Mayo Clinic, Rochester, MN
| | | | - Ronald S Go
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Dragan Jevremovic
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
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34
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Chaulagain CP, Diacovo MJ, Van A, Martinez F, Fu CL, Jimenez Jimenez AM, Ahmed W, Anwer F. Management of Primary Plasma Cell Leukemia Remains Challenging Even in the Era of Novel Agents. Clin Med Insights Blood Disord 2021; 14:2634853521999389. [PMID: 33716516 PMCID: PMC7917418 DOI: 10.1177/2634853521999389] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
Primary plasma cell leukemia (PCL) is a rare and aggressive variant of multiple myeloma (MM). PCL is characterized by peripheral blood involvement by malignant plasma cells and an aggressive clinical course leading to poor survival. There is considerable overlap between MM and PCL with respect to clinical, immunophenotypic, and cytogenetic features, but circulating plasma cell count exceeding 20% of peripheral blood leukocytes or an absolute plasma cell count of >2000/mm3 distinguishes it from MM. After initial stabilization and diagnosis confirmation, treatment of PCL in a fit patient typically includes induction combination chemotherapy containing novel agents typically, with proteasome inhibitors (such as bortezomib) and immunomodulatory drugs (eg, lenalidomide), followed by autologous hematopoietic stem cell transplant (HSCT) and multidrug maintenance therapy using novel agents post-HSCT. Long-term outcomes have improved employing this strategy but the prognosis for non-HSCT candidates remains poor and new approaches are needed for such PCL patients not eligible for HSCT. Here, we report a case of primary PCL, and a comprehensive and up to date review of the literature for diagnosis and management of PCL. We also present the findings of Positron Emission Tomography (PET) scan. Since PCL is often associated with extra-medulary disease, including PET scan at the time of staging and restaging may be a novel approach particularly to evaluate the extra-medullary disease sites.
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Affiliation(s)
- Chakra P Chaulagain
- Department of Hematology and Oncology, Maroone Cancer Center, Myeloma and Amyloidosis Program, Cleveland Clinic Florida, Weston, FL, USA
| | | | - Amy Van
- Department of Internal Medicine, Cleveland Clinic Florida, Weston FL, USA
| | - Felipe Martinez
- Department of Radiology, Cleveland Clinic Florida, Weston, FL, USA
| | - Chieh-Lin Fu
- Department of Hematology and Oncology, Maroone Cancer Center, Myeloma and Amyloidosis Program, Cleveland Clinic Florida, Weston, FL, USA
| | - Antonio Martin Jimenez Jimenez
- Division of Stem Cell Transplant & Cell Therapy, Sylvester Comprehensive Cancer Center, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Wesam Ahmed
- Department of Hematology and Oncology, Maroone Cancer Center, Myeloma and Amyloidosis Program, Cleveland Clinic Florida, Weston, FL, USA
| | - Faiz Anwer
- Multiple Myeloma Program, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
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35
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Yang Y, Fu LJ, Chen CM, Hu MW. Venetoclax in combination with chidamide and dexamethasone in relapsed/refractory primary plasma cell leukemia without t(11;14): A case report. World J Clin Cases 2021; 9:1175-1183. [PMID: 33644182 PMCID: PMC7896656 DOI: 10.12998/wjcc.v9.i5.1175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/04/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Conventional therapies for primary plasma cell leukemia (pPCL) are usually ineffective, with a short remission time with the use of multiple myeloma medications, showing aggressiveness of pPCL. B-cell lymphoma-2 inhibitor venetoclax is usually used for relapsed/refractory multiple myeloma (RRMM) with t(11;14). There are very few studies published on the use of venetoclax in pPCL without t(11;14). Similarly, histone deacetylase inhibitors are considered effective for the treatment of RRMM, but there are no reports on their use in pPCL.
CASE SUMMARY A 57-year-old woman with severe anemia, thrombocytopenia, multiple bone destruction, impaired renal function, and 42.7% of peripheral plasma cells is reported. After multiple chemotherapy regimens and chimeric antigen receptor T-cell treatment, the disease progressed again. The patient had very good partial response and was maintained for a long time on venetoclax in combination with chidamide and dexamethasone therapy.
CONCLUSION The success of venetoclax-chidamide-dexamethasone combination therapy in achieving a very good partial response suggested that it can be used for refractory/relapsed pPCL patients who have been exhausted with the use of various drug combinations and had poor survival outcomes.
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Affiliation(s)
- Yang Yang
- Department of Hematology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310014, Zhejiang Province, China
| | - Li-Juan Fu
- Department of Hematology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310014, Zhejiang Province, China
| | - Chun-Mei Chen
- Department of Hematology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310014, Zhejiang Province, China
| | - Mei-Wei Hu
- Department of Hematology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310014, Zhejiang Province, China
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Brink M, Visser O, Zweegman S, Sonneveld P, Broyl A, van de Donk NWCJ, Dinmohamed AG. First-line treatment and survival of newly diagnosed primary plasma cell leukemia patients in the Netherlands: a population-based study, 1989-2018. Blood Cancer J 2021; 11:22. [PMID: 33563890 PMCID: PMC7873037 DOI: 10.1038/s41408-021-00415-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/23/2020] [Accepted: 01/18/2021] [Indexed: 11/16/2022] Open
Affiliation(s)
- Mirian Brink
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation (IKNL), Utrecht, The Netherlands.
| | - Otto Visser
- Department of Registration, Netherlands Comprehensive Cancer Organisation (IKNL), Utrecht, The Netherlands
| | - Sonja Zweegman
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Hematology, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Pieter Sonneveld
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Annemiek Broyl
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Niels W C J van de Donk
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Hematology, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Avinash G Dinmohamed
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation (IKNL), Utrecht, The Netherlands.,Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Hematology, Cancer Center Amsterdam, Amsterdam, The Netherlands.,Department of Public Health, Erasmus University Medical Center, Rotterdam, The Netherlands
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A clinical perspective on plasma cell leukemia; current status and future directions. Blood Cancer J 2021; 11:23. [PMID: 33563906 PMCID: PMC7873074 DOI: 10.1038/s41408-021-00414-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/15/2020] [Accepted: 01/14/2021] [Indexed: 02/08/2023] Open
Abstract
Primary plasma cell leukemia (pPCL) is an aggressive plasma cell disorder with a guarded prognosis. The diagnosis is confirmed when peripheral blood plasma cells (PCs) exceed 20% of white blood cells or 2000/μL. Emerging data demonstrates that patients with lower levels of circulating (PCs) have the same adverse prognosis, challenging the clinical disease definition, but supporting the adverse impact of circulating PCs. The cornerstone of treatment consists of combination therapy incorporating a proteasome inhibitor, an immunomodulatory agent, steroids, and/or anthracyclines and alkylators as part of more-intensive chemotherapy, followed by consolidative autologous hematopoietic cell transplantation in eligible patients and then maintenance therapy. Monoclonal antibodies are also currently being evaluated in this setting with a strong rationale for their use based on their activity in multiple myeloma (MM). Due to limited therapeutic studies specifically evaluating pPCL, patients with pPCL should be considered for clinical trials. In contrast to MM, the outcomes of patients with pPCL have only modestly improved with novel therapies, and secondary PCL arising from MM in particular is associated with a dismal outlook. Newer drug combinations, immunotherapy, and cellular therapy are under investigation, and these approaches hopefully will demonstrate efficacy to improve the prognosis of pPCL.
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Multiple Myeloma: EHA-ESMO Clinical Practice Guidelines for Diagnosis, Treatment and Follow-up. Hemasphere 2021; 5:e528. [PMID: 33554050 PMCID: PMC7861652 DOI: 10.1097/hs9.0000000000000528] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 12/16/2020] [Indexed: 12/24/2022] Open
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Ueno T, Sugio Y, Ohta T, Uehara Y, Ohno Y. Successful upfront cord blood transplantation for plasma cell leukemia in the first complete response after daratumumab therapy. Int J Hematol 2021; 113:941-944. [PMID: 33483877 DOI: 10.1007/s12185-021-03082-1] [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: 11/14/2020] [Revised: 01/07/2021] [Accepted: 01/13/2021] [Indexed: 10/22/2022]
Abstract
Plasma cell leukemia (PCL) is a rare and aggressive disease with a poor prognosis. Autologous or allogeneic stem cell transplantation (ASCT or allo-SCT) with intensive chemotherapy is performed for PCL, but their efficacy is still controversial. The efficacy of novel agents such as daratumumab for PCL is also unclear. Here, we report a case of PCL treated successfully with daratumumab and upfront cord blood transplantation (CBT) in the first complete response (CR). A 58-year-old man was diagnosed with PCL based on elevated abnormal plasma cells and IgD levels. After two cycles of bortezomib, lenalidomide, and dexamethasone therapy, some PCL cells remained in the bone marrow. We switched treatment to daratumumab, lenalidomide, and dexamethasone therapy and confirmed an immunophenotypic CR. We then performed CBT with fludarabine, melphalan, and total body irradiation for conditioning 3 months after diagnosis. Acute graft-versus-host disease was observed but controlled with corticosteroid therapy. The patient remained in stringent CR for 1 year after CBT. We successfully treated PCL with daratumumab followed by upfront CBT. Daratumumab was effective in PCL and could be used safely even before allo-SCT. Early use of daratumumab and early upfront allo-SCT may be a useful treatment option for PCL.
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Affiliation(s)
- Toshiyuki Ueno
- Department of Hematology, Kitakyushu Municipal Medical Center, 2-1-1, Bashaku, Kokurakita-ward, Kitakyushu-city, Fukuoka-prefecture, Japan.
| | - Yasuhiro Sugio
- Department of Hematology, Kitakyushu Municipal Medical Center, 2-1-1, Bashaku, Kokurakita-ward, Kitakyushu-city, Fukuoka-prefecture, Japan
| | - Takanori Ohta
- Department of Hematology, Kitakyushu Municipal Medical Center, 2-1-1, Bashaku, Kokurakita-ward, Kitakyushu-city, Fukuoka-prefecture, Japan
| | - Yasufumi Uehara
- Department of Hematology, Kitakyushu Municipal Medical Center, 2-1-1, Bashaku, Kokurakita-ward, Kitakyushu-city, Fukuoka-prefecture, Japan
| | - Yuju Ohno
- Department of Hematology, Kitakyushu Municipal Medical Center, 2-1-1, Bashaku, Kokurakita-ward, Kitakyushu-city, Fukuoka-prefecture, Japan
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40
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Efficacy of Venetoclax and Dexamethasone in Refractory IgM Primary Plasma Cell Leukemia with t(11;14) and TP53 Mutation: A Case Report and Literature Review. Case Rep Hematol 2021; 2020:8823877. [PMID: 33425404 PMCID: PMC7781713 DOI: 10.1155/2020/8823877] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/08/2020] [Accepted: 12/17/2020] [Indexed: 02/06/2023] Open
Abstract
Primary plasma cell leukemia (pPCL) is an uncommon disease. IgM multiple myeloma (MM) is an infrequent subtype that accounts for less than 1 percent of MM cases. IgM pPCL is quite rare with only a few cases published to date. We describe a case of a patient with IgM pPCL who initially presented with hyperviscosity syndrome requiring urgent plasma exchange. His bone marrow biopsy demonstrated t(11;14). He progressed on proteasome inhibitors, immunomodulating agents, and other chemotherapy medications but later achieved very good partial response (VGPR) to venetoclax and dexamethasone. Given the poor prognosis of pPCL, further studies using venetoclax alone or in combination with other novel agents as first-line treatment options are warranted particularly in patients with t(11;14).
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Risk and Response-Adapted Treatment in Multiple Myeloma. Cancers (Basel) 2020; 12:cancers12123497. [PMID: 33255368 PMCID: PMC7760158 DOI: 10.3390/cancers12123497] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/19/2020] [Accepted: 11/22/2020] [Indexed: 12/28/2022] Open
Abstract
Simple Summary Therapeutic strategies in multiple myeloma have been adapted only to age and comorbidities for a long time. Given the currently available therapeutic and technologic arsenal, the time may have come to refine this adaptation. First, high-risk patients should benefit from the most intensive and efficient combinations from diagnosis. Here, we review these different strategies and how to define and identify high-risk myeloma patients in current clinical practice. In addition, the advent of technologies detecting minimal residual disease gives us this opportunity to define the quality of response to treatment with an unpreceded sensitivity and adapt treatment accordingly. Finally, even if molecular targeting is still nascent in myeloma, some molecular features are interesting to detect at relapse to determine optimal salvage treatments. Abstract Myeloma therapeutic strategies have been adapted to patients’ age and comorbidities for a long time. However, although cytogenetics and clinical presentations (plasmablastic cytology; extramedullary disease) are major prognostic factors, until recently, all patients received the same treatment whatever their initial risk. No strong evidence allows us to use a personalized treatment according to one cytogenetic abnormality in newly diagnosed myeloma. Retrospective studies showed a benefit of a double autologous transplant in high-risk cytogenetics according to the International Myeloma Working Group definition (t(4;14), t(14;16) or del(17p)). Moreover, this definition has to be updated since other independent abnormalities, namely gain 1q, del(1p32), and trisomies 5 or 21, as well as TP53 mutations, are also prognostic. Another very strong predictive tool is the response to treatment assessed by the evaluation of minimal residual disease (MRD). We are convinced that the time has come to use it to adapt the strategy to a dynamic risk. Many trials are ongoing to answer many questions: when and how should we adapt the therapy, its intensity and duration. Nevertheless, we also have to take into account the clinical outcome for one patient, especially adverse events affecting his or her quality of life and his or her preferences for continuous/fixed duration treatment.
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Lemieux C, Johnston LJ, Lowsky R, Muffly LS, Craig JK, Shiraz P, Rezvani A, Frank MJ, Weng WK, Meyer E, Shizuru J, Arai S, Negrin R, Miklos DB, Sidana S. Outcomes with Autologous or Allogeneic Stem Cell Transplantation in Patients with Plasma Cell Leukemia in the Era of Novel Agents. Biol Blood Marrow Transplant 2020; 26:e328-e332. [PMID: 32961371 DOI: 10.1016/j.bbmt.2020.08.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/30/2020] [Accepted: 08/31/2020] [Indexed: 12/19/2022]
Abstract
Plasma cell leukemia (PCL) is a rare and very aggressive plasma cell disorder. The optimal treatment approach, including whether to pursue an autologous (auto) or allogeneic (allo) stem cell transplantation (SCT) is not clear, given the lack of clinical trial-based evidence. This single-center retrospective study describes the outcomes of 16 patients with PCL (n = 14 with primary PCL) who underwent either autoSCT (n = 9) or alloSCT (n = 7) for PCL in the era of novel agents, between 2007 and 2019. The median age of the cohort was 58 years. High-risk cytogenetics were found in 50% of the patients. All patients received a proteasome inhibitor and/or immunomodulatory drug-based regimen before transplantation. At the time of transplantation, 10 patients (62%) obtained at least a very good partial response (VGPR). The response after autoSCT (3 months) was at least a VGPR in 6 patients (67%; complete response [CR] in 5). All patients undergoing alloSCT achieved a CR at 3 months. Maintenance therapy was provided to 5 patients (56%) after autoSCT. The median progression-free survival after transplantation was 6 months in the autoSCT group, compared with 18 months in the alloSCT group (P = .09), and median overall survival (OS) after transplantation in the 2 groups was 19 months and 40 months, respectively (P = .41). The median OS from diagnosis was 27 months and 49 months, respectively (P = .50). Of the 11 deaths, 10 patients (91%) died of relapsed disease. AlloSCT was not observed to offer any significant survival advantage over autoSCT in PCL, in agreement with recent reports, and relapse remains the primary cause of death in these patients.
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Affiliation(s)
- Christopher Lemieux
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Laura J Johnston
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Robert Lowsky
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Lori S Muffly
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Juliana K Craig
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Parveen Shiraz
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Andrew Rezvani
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Matthew J Frank
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Wen-Kai Weng
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Everett Meyer
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Judith Shizuru
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Sally Arai
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Robert Negrin
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - David B Miklos
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California
| | - Surbhi Sidana
- Stanford Cancer Institute, Stanford University Medical Center, Stanford, California.
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Suska A, Vesole DH, Castillo JJ, Kumar SK, Parameswaran H, Mateos MV, Facon T, Gozzetti A, Mikala G, Szostek M, Mikhael J, Hajek R, Terpos E, Jurczyszyn A. Plasma Cell Leukemia - Facts and Controversies: More Questions than Answers? Clin Hematol Int 2020; 2:133-142. [PMID: 34595454 PMCID: PMC8432408 DOI: 10.2991/chi.k.200706.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/01/2020] [Indexed: 11/18/2022] Open
Abstract
Plasma cell leukemia (PCL) is an aggressive hematological malignancy characterized by an uncontrolled clonal proliferation of plasma cells (PCs) in the bone marrow and peripheral blood. PCL has been defined by an absolute number of circulating PCs exceeding 2.0 × 109/L and/or >20% PCs in the total leucocyte count. It is classified as primary PCL, which develops de novo, and secondary PCL, occurring at the late and advanced stages of multiple myeloma (MM). Primary and secondary PCL are clinically and biologically two distinct entities. After the diagnosis, treatment should be immediate and should include a proteasome inhibitor and immunomodulator-based combination regimens as induction, followed by stem cell transplantation (SCT) in transplant-eligible individuals who have cleared the peripheral blood of circulating PCs. Due to the rarity of the condition, there have been very few clinical trials. Furthermore, virtually all of the myeloma trials exclude patients with active PCL. The evaluation of response has been defined by the International Myeloma Working Group and consists of both acute leukemia and MM criteria. With conventional chemotherapy, the prognosis of primary PCL has been ominous, with reported overall survival (OS) ranging from 6.8 to 12.6 months. The use of novel agents and autologous SCT appears to be associated with deeper response and an improved survival, although it still remains low. The PCL prognostic index provides a simple score to risk-stratify PCL. The prognosis of secondary PCL is extremely poor, with OS of only 1 month.
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Affiliation(s)
- Anna Suska
- Department of Hematology, Jagiellonian University Medical College, Kopernika 17, Krakow 31-501, Poland
| | - David H Vesole
- The John Theurer Cancer Center at Hackensack UMC, Hackensack, NJ, USA
| | - Jorge J Castillo
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Shaji K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | - Maria V Mateos
- Complejo Asistencial Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (CAUSA/IBSAL), Salamanca, Spain
| | - Thierry Facon
- Service des Maladies du Sang, Hôpital Claude Huriez, Lille, France
| | | | - Gabor Mikala
- Department of Hematology and Stem Cell Transplantation, South-Pest Central Hospital, Natl. Inst. Hematol. Infectol, Budapest, Hungary
| | - Marta Szostek
- Department of Hematology, Jagiellonian University Medical College, Kopernika 17, Krakow 31-501, Poland
| | - Joseph Mikhael
- Translational Genomics Research Institute, City of Hope Cancer Center, Phoenix, Arizona, USA
| | - Roman Hajek
- University Hospital Ostrava and Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
| | - Evangelos Terpos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Artur Jurczyszyn
- Department of Hematology, Jagiellonian University Medical College, Kopernika 17, Krakow 31-501, Poland
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Evans LA, Jevremovic D, Nandakumar B, Dispenzieri A, Buadi FK, Dingli D, Lacy MQ, Hayman SR, Kapoor P, Leung N, Fonder A, Hobbs M, Hwa YL, Muchtar E, Warsame R, Kourelis TV, Go R, Russell S, Lust JA, Lin Y, Siddiqui M, Kyle RA, Gertz MA, Rajkumar SV, Kumar SK, Gonsalves WI. Utilizing multiparametric flow cytometry in the diagnosis of patients with primary plasma cell leukemia. Am J Hematol 2020; 95:637-642. [PMID: 32129510 DOI: 10.1002/ajh.25773] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 12/22/2022]
Abstract
The diagnosis of primary plasma cell leukemia (pPCL) has been made by quantifying circulating plasma cells (cPCs) morphologically on a peripheral blood (PB) smear. However, this technique is not sufficiently sensitive. Multiparametric flow cytometry (MFC) provides a readily available and highly sensitive method to identify and quantify cPCs that could complement PB smear assessment. However, an optimal quantitative cutoff for cPCs by MFC to identify pPCL has not been established. Thus, a total of 591 patients newly diagnosed multiple myeloma (NDMM) patients who had their PB samples evaluated morphologically by PB smear, and immunophenotypically by MFC prior to beginning therapy were evaluated. The presence of ≥200 cPCs/μL by MFC (N = 25 or 5% of the total population) was chosen to identify patients with ≥5% cPCs by PB smear with a specificity of 99% and a sensitivity of 77%. For patients with ≥200 cPCs/μL by MFC compared to the remainder of the cohort, the median Time to next therapy (TTNT) was 18 vs 30 months and the median OS was 38 vs 70 months respectively. Thus, MFC assessment of PB can be utilized in conjunction with the morphological assessment of a PB smear to aid in improving the identification of pPCL among NDMM patients.
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Affiliation(s)
- Laura A. Evans
- Division of HematologyMayo Clinic Rochester Minnesota USA
- Department of BiologyJohns Hopkins University Baltimore Maryland USA
| | - Dragan Jevremovic
- Department of Laboratory Medicine and PathologyMayo Clinic Rochester Minnesota USA
| | | | | | | | - David Dingli
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Martha Q. Lacy
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | | | - Nelson Leung
- Division of HematologyMayo Clinic Rochester Minnesota USA
- Department of Nephrology and HypertensionMayo Clinic Rochester Minnesota USA
| | - Amie Fonder
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Miriam Hobbs
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Yi Lisa Hwa
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Eli Muchtar
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Rahma Warsame
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | - Ronald Go
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | - John A. Lust
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Yi Lin
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | - Robert A. Kyle
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Morie A. Gertz
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | - Shaji K. Kumar
- Division of HematologyMayo Clinic Rochester Minnesota USA
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Yu T, Xu Y, An G, Tai YT, Ho M, Li Z, Deng S, Zou D, Yu Z, Hao M, Anderson KC, Qiu L. Primary Plasma Cell Leukemia: Real-World Retrospective Study of 46 Patients From a Single-Center Study in China. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2020; 20:e652-e659. [PMID: 32624447 DOI: 10.1016/j.clml.2020.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Primary plasma cell leukemia (PPCL) is a rare and aggressive plasma cell disorder. The use of novel agents, together with autologous stem cell transplantation, has improved survival outcome in PPCL. However, the prognosis is still very poor, and the optimal treatment remains an unmet clinical need. PATIENTS AND METHODS We studied the efficacy and prognostic impact of novel agents in 46 patients with PPCL patients at the Blood Diseases Hospital in China. We examined the impact of clinical and laboratory features, as well as therapies (bortezomib- and/or immunomodulatory drug-based therapies, chemotherapy) on survival and extent of clinical response, including progression-free survival and overall survival (OS). Progression-free survival and OS were assessed by the Kaplan-Meier method, and survival distributions were compared by log-rank test. RESULTS In our cohort of 46 PPCL patients, the median age at the time of diagnosis was 54 years. Overall response rate was 54% (25/46). The median (95% confidence interval) progression-free survival time was 6 (0-12.5) months, and OS time was 14 (4.6-23.4) months. The OS time was significantly longer in patients treated with bortezomib-based versus non-bortezomib-based therapies (median [95% confidence interval], 19 [9-28.9] vs. 5 [4-24] months; P = .019). CONCLUSION This large single-center study of PPCL supports the use of bortezomib-based therapies as frontline treatment in PPCL patients.
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Affiliation(s)
- Tengteng Yu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China; Jerome Lipper Multiple Myeloma Center, LeBow Institute for Myeloma Therapeutics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Yan Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China; Jerome Lipper Multiple Myeloma Center, LeBow Institute for Myeloma Therapeutics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Gang An
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Yu-Tzu Tai
- Jerome Lipper Multiple Myeloma Center, LeBow Institute for Myeloma Therapeutics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Matthew Ho
- UCD School of Medicine, College of Health and Agricultural Science and UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Zengjun Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China; Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Shuhui Deng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Dehui Zou
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Zhen Yu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Mu Hao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Kenneth C Anderson
- Jerome Lipper Multiple Myeloma Center, LeBow Institute for Myeloma Therapeutics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA.
| | - Lugui Qiu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Hematological Disorders, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China.
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Hematopoietic cell transplantation utilization and outcomes for primary plasma cell leukemia in the current era. Leukemia 2020; 34:3338-3347. [PMID: 32313109 DOI: 10.1038/s41375-020-0830-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/18/2020] [Accepted: 04/02/2020] [Indexed: 02/06/2023]
Abstract
The outcomes of patients with primary plasma cell leukemia (pPCL) after undergoing hematopoietic cell transplantation (HCT) in the novel agent era are unknown. We report outcomes of 348 patients with pPCL receiving autologous (auto-) HCT (n = 277) and allogeneic (allo-) HCT (n = 71) between 2008 and 2015. Median age was 60 years and 56 years for auto- and allo-HCT respectively. For auto-HCT, the 4-year outcomes were: non-relapse mortality (NRM) 7% (4-11%), relapse (REL) 76% (69-82%), progression-free survival (PFS) 17% (13-23%), and overall survival (OS) 28% (22-35%). Karnofsky performance status (KPS) > 90 and ≥very good partial response (VGPR) predicted superior OS in multi-variate analysis for auto-HCT. For allo-HCT, the 4-year outcomes were: NRM 12% (5-21%), REL 69% (56-81%), PFS 19% (10-31%), and OS 31% (19-44%). Compared with prior CIBMTR pPCL patients (1995-2006), inferior survival was noted in the current cohort (3-year OS, 39% vs. 38% in allo-HCT, and 62% vs. 35% in auto-HCT) respectively. However, we noted an increased HCT utilization, from 12% (7-21%) in 1995 to 46% (34-64%) in 2009 using SEER data (available till 2009). Despite modern induction translating to higher proportion receiving HCT, the outcomes remain poor in pPCL patients, mainly derived by high relapse rates post-HCT.
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47
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Jelinek T. Venetoclax: the first anti‐myeloma agent with a reliable biomarker. Br J Haematol 2020; 189:1003-1005. [DOI: 10.1111/bjh.16493] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tomas Jelinek
- Department of Haematooncology University Hospital Ostrava OstravaCzech Republic
- Faculty of Medicine University of Ostrava OstravaCzech Republic
- Faculty of Science University of Ostrava OstravaCzech Republic
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48
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Zhang S, Zhou L, Zhang M, Wang Y, Wang M, Du J, Gu W, Kui F, Li J, Geng S, Du G. Berberine Maintains the Neutrophil N1 Phenotype to Reverse Cancer Cell Resistance to Doxorubicin. Front Pharmacol 2020; 10:1658. [PMID: 32063859 PMCID: PMC7000449 DOI: 10.3389/fphar.2019.01658] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 12/17/2019] [Indexed: 02/06/2023] Open
Abstract
This study explores the contributions of neutrophils to chemotherapeutic resistance and berberine-regulated cancer cell sensitivity to doxorubicin (DOX). In vitro experiments, continuous DOX treatment led to the shift of HL-60 cells to N2 neutrophils and thus induced chemotherapeutic resistance. The combination treatment with DOX and 2 µM berberine resulted in the differentiation of HL-60 cells toward N1 and therefore stimulated HL-60 cell immune clearance. Berberine increased reactive oxygen species (ROS) and decreased autophagy and therefore induced apoptosis in HL-60-N2 cells with morphological changes, but had no effect on cell viability in HL-60-N1 cells. The neutrophil-regulating efficacy of berberine was confirmed in the urethane-induced lung carcinogenic model and H22 liver cancer allograft model. Furthermore, we found that DOX-derived neutrophils had high levels of CD133 and CD309 surface expression, which prevented both chemotherapeutic sensitivity and immune rejection by self-expression of PD-L1 and surface expression of PD-1 receptor on T cells, whereas berberine could downregulate CD133 and CD309 surface expression. Finally, berberine-relevant targets and pathways were evaluated. This study first suggests an important role of berberine in regulating neutrophil phenotypes to maintain cancer cell sensitivity to DOX.
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Affiliation(s)
- Shuhui Zhang
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
| | - Lin Zhou
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
| | - Mengdi Zhang
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
| | - Yuehua Wang
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
| | - Mengqi Wang
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
| | - Jincheng Du
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
- Chinese Medical School, Hunan University of Chinese Medicine, Changsha, China
| | - Wenwen Gu
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
| | - Fuguang Kui
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
| | - Jiahuan Li
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
| | - Shengnan Geng
- School of Pharmacy and Chemical Engineering, Zhengzhou University of Industry Technology, Xinzheng, China
| | - Gangjun Du
- Institute of Pharmacy, Pharmaceutical College of Henan University, Kaifeng, China
- School of Pharmacy and Chemical Engineering, Zhengzhou University of Industry Technology, Xinzheng, China
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Treatment of primary plasma cell leukemia with high doses of cyclophosphamide, bortezomib, and dexamethasone followed by double autologous HSCT. Ann Hematol 2019; 99:207-209. [DOI: 10.1007/s00277-019-03885-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 12/04/2019] [Indexed: 11/25/2022]
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50
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Extramedullary multiple myeloma. Leukemia 2019; 34:1-20. [DOI: 10.1038/s41375-019-0660-0] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/31/2019] [Accepted: 08/12/2019] [Indexed: 01/07/2023]
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