[en] [en] BACKGROUND: Primary plasma cell leukemia (PPCL) is the most aggressive disorder among plasma cell malignancies, with new diagnostic criteria recently established by the International Myeloma Working Group. Studies have shown that PPCL patients receiving a combination of novel agents, but not eligible for transplantation, may have a median survival up to 2 years, extended to 3 years or more in those undergoing transplant procedures. These findings remain unsatisfactory, particularly if compared with progresses obtained in multiple myeloma.
DESIGN: A European Myeloma Network (EMN) expert panel reviewed the most recent literature and selected the areas of major concern in the management of PPCL by generating and rank ordering key questions using the criterion of clinical relevance. Multistep procedures were utilized to achieve a consensus on recommendations. The Delphi questionnaire method was used and a consensus of at least 80% was reached for all final statements.
RESULTS: An extended overview of current biological, clinical, prognostic, and therapeutic aspects of PPCL, including ongoing and close to start clinical trials, is presented. Furthermore, updated guidelines for the management of PPCL and practical recommendations are provided, in the context of current knowledge about this disease, also looking at possible future perspectives to ameliorate the outcome of these patients.
CONCLUSIONS: PPCL still remains an unmet clinical need. Notwithstanding, some not negligible progresses have been recently achieved. The European Myeloma Network panel strongly support ongoing and planned clinical trials, as well as biological studies based on novel technologies, strategies, and treatment options that could represent breakthroughs we have been waiting for too long.
Disciplines :
Hematology
Author, co-author :
Musto, P; Department of Precision and Regenerative Medicine and Ionian Area, "Aldo Moro" University School of Medicine, Bari, Italy, Hematology and Stem Cell Transplantation Unit, AOU Consorziale Policlinico, Bari, Italy. Electronic address: pellegrino.musto@uniba.it
Engelhardt, M ; University of Freiburg Medical Center, Faculty of Freiburg, Freiburg, Germany
van de Donk, N W C J; Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Hematology, Cancer Center Amsterdam, Amsterdam, the Netherlands
Gay, F; Division of Hematology, AOU Città della Salute e della Scienza di Torino, University of Torino, Turin, Italy, Department of Molecular Biotechnology and Health Sciences, University of Torino, Turin, Italy
Terpos, E ; Department of Clinical Therapeutics, National and Kapodistrian University of Athens, School of Medicine, Alexandra General Hospital, Athens, Greece
Einsele, H; University Hospital Würzburg, Department of Internal Medicine II, Würzburg, Germany
Fernández de Larrea, C ; Hospital Clínic de Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
Sgherza, N; Hematology and Stem Cell Transplantation Unit, AOU Consorziale Policlinico, Bari, Italy
Bolli, N; Department of Oncology and Onco-Hematology, University of Milan, Milan, Italy, Section of Hematology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
Katodritou, E; Department of Hematology, Theagenion Cancer Hospital, Thessaloniki, Greece
Gentile, M; Hematology Unit, Department of Onco-hematology, A.O. of Cosenza, Cosenza, Italy, Department of Pharmacy, Health and Nutritional Science, University of Calabria, Rende, Italy
Royer, B; Immuno-Hematology Unit, St Louis, APHP, Paris, France
Derudas, D ; Department of Hematology and Bone Marrow Transplant Center, Oncologic Hospital "A. Businco", Cagliari, Italy
Jelinek, T; Department of Hematooncology, University Hospital Ostrava and Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
Zamagni, E; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia "Seràgnoli", Bologna, Italy, Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
Rosiñol, L; Hematology Department, Amyloidosis and Myeloma Unit, Hospital Clínic, IDIBAPS, Barcelona, Spain
Paiva, B; Clínica Universidad de Navarra, Centro de Investigación Médica Aplicada, Universidad de Navarra, CCUN, IDISNA, CIBER-ONC CB16/12/00369, Pamplona, Spain
Caers, Jo ; Université de Liège - ULiège > Département des sciences cliniques > Hématologie
Kaiser, M ; The Institute of Cancer Research and The Royal Marsden Hospital, London, UK
Beksac, M; Istinye University - Ankara Liv Hospital, Kavaklıdere, Ankara, Turkey
Hájek, R; Department of Haematooncology, University Hospital Ostrava, Ostrava, Czech Republic, Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
Spencer, A; Alfred Health-Monash University, Melbourne, Australia
Ludwig, H; Wilhelminen Cancer Research Institute, c/o Department of Medicine I, Center for Oncology and Hematology, Clinic Ottakring, Vienna, Austria
Cavo, M; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia "Seràgnoli", Bologna, Italy, Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
Bladé, J; Department of Hematology, Hospital Clínic, IDIBAPS, University of Barcelona, Barcelona, Spain
Moreau, P; Hematology Department, University Hospital Hôtel-Dieu, Nantes, France
Mateos, M-V; University Hospital of Salamanca/IBSAL/CIC/CIBERONC, Salamanca
San-Miguel, J F; Cancer Center, Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona, Spain
Dimopoulos, M A; National and Kapodistrian University of Athens, Department of Therapeutics, Athens, Greece
Boccadoro, M; European Myeloma Network (EMN), Turin, Italy
Sonneveld, P; Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
Gluzinski, A., Reichestein, M., Laeucaemia lymphatica plasmacellularis. Wiener Klinische Wochenschrift, 1906, 336–339.
Kyle, R.A., Maldonado, J.E., Bayrd, E.D., Plasma cell leukemia. Report on 17 cases. Arch Intern Med 133:5 (1974), 813–818.
Chang, H., Qi, X., Yeung, J., Reece, D., Xu, W., Patterson, B., Genetic aberrations including chromosome 1 abnormalities and clinical features of plasma cell leukemia. Leuk Res 33:2 (2009), 259–262.
Musto, P., Pagano, L., Petrucci, M.T., et al. Primary plasma cell leukemia in the era of new drugs: has something changed?. Crit Rev Oncol Hematol 82:2 (2012), 141–149.
Usmani, S.Z., Nair, B., Qu, P., et al. Primary plasma cell leukemia: clinical and laboratory presentation, gene-expression profiling and clinical outcome with Total Therapy protocols. Leukemia 26:11 (2012), 2398–2405.
van de Donk, N.W.C.J., Lokhorst, H.M., Anderson, K.C., Richardson, P.G., How I treat plasma cell leukemia. Blood 120:12 (2012), 2376–2389.
Jelinek, T., Kryukov, F., Rihova, L., Hajek, R., Plasma cell leukemia: from biology to treatment. Eur J Haematol 95:1 (2015), 16–26.
Neri, A., Todoerti, K., Lionetti, M., et al. Primary plasma cell leukemia 2.0: advances in biology and clinical management. Expert Rev Hematol 9:11 (2016), 1063–1073.
Musto, P., Statuto, T., Valvano, L., et al. An update on biology, diagnosis and treatment of primary plasma cell leukemia. Expert Rev Hematol 12:4 (2019), 245–253.
Tuazon, S.A., Holmberg, L.A., Nadeem, O., Richardson, P.G., A clinical perspective on plasma cell leukemia; current status and future directions. Blood Cancer J, 11(2), 2021, 23.
Gong, Z., Khosla, M., Vasudevan, S., Mohan, M., Current status on management of primary plasma cell leukemia. Curr Oncol Rep 26:9 (2024), 1104–1112.
Fernández de Larrea, C., Kyle, R., Rosiñol, L., et al. Primary plasma cell leukemia: consensus definition by the International Myeloma Working Group according to peripheral blood plasma cell percentage. Blood Cancer J, 11(12), 2021, 192.
Gonsalves, W.I., Rajkumar, S.V., Go, R.S., et al. Trends in survival of patients with primary plasma cell leukemia: a population-based analysis. Blood 124:6 (2014), 907–912.
Saba, L., Landau, K.S., Liang, H., Fu, C.L., Chaulagain, C.P., Real world analysis on the determinants of survival in primary plasma cell leukemia in the United States. Leukemia 38:2 (2024), 435–437.
Musto, P., Rossini, F., Gay, F., et al. Efficacy and safety of bortezomib in patients with plasma cell leukemia. Cancer 109:11 (2007), 2285–2290.
Pagano, L., Valentini, C.G., de Stefano, V., et al. Primary plasma cell leukemia: a retrospective multicenter study of 73 patients. Ann Oncol 22:7 (2011), 1628–1635.
Drake, M.B., Iacobelli, S., van Biezen, A., et al. Primary plasma cell leukemia and autologous stem cell transplantation. Haematologica 95:5 (2010), 804–809.
Morris, C., Iacobelli, S., Gahrton, G., et al. Has allogeneic transplantation a role in the management of plasma cell leukaemia? A study on behalf of the Myeloma Subcomittee of the Chronic Leukaemia Working Party of the EBMT. Blood, 118(21), 2011, 2008.
Mahindra, A., Kalaycio, M.E., Vela-Ojeda, J., et al. Hematopoietic cell transplantation for primary plasma cell leukemia: results from the Center for International Blood and Marrow Transplant Research. Leukemia 26:5 (2012), 1091–1097.
Avet-Loiseau, H., Roussel, M., Campion, L., et al. Cytogenetic and therapeutic characterization of primary plasma cell leukemia: the IFM experience. Leukemia 26:1 (2012), 158–159.
D'Arena, G., Valentini, C.G., Pietrantuono, G., et al. Frontline chemotherapy with bortezomib-containing combinations improves response rate and survival in primary plasma cell leukemia: a retrospective study from GIMEMA Multiple Myeloma Working Party. Ann Oncol 23:6 (2012), 1499–1502.
Katodritou, E., Terpos, E., Kelaidi, C., et al. Treatment with bortezomib-based regimens improves overall response and predicts for survival in patients with primary or secondary plasma cell leukemia: analysis of the Greek myeloma study group. Am J Hematol 89:2 (2014), 145–150.
Mina, R., Joseph, N.S., Kaufman, J.L., et al. Survival outcomes of patients with primary plasma cell leukemia (pPCL) treated with novel agents. Cancer 125:3 (2019), 416–423.
Gowda, L., Shah, M., Badar, I., et al. Primary plasma cell leukemia: autologous stem cell transplant in an era of novel induction drugs. Bone Marrow Transplant 54:7 (2019), 1089–1093.
Ge, A., Huang, C.-Y., Martin, T., Wolf, J.L., Shah, N., Wong, S.W., Outcomes of plasma cell leukemia patients in the era of next-generation novel agents: a single-center retrospective cohort study. Blood 136:suppl 1 (2020), 6–7.
Dhakal, B., Patel, S., Girnius, S., et al. Hematopoietic cell transplantation utilization and outcomes for primary plasma cell leukemia in the current era. Leukemia 34:12 (2020), 3338–3347.
Suska, A., Vesole, D.H., Castillo, J.J., et al. Plasma cell leukemia - facts and controversies: more questions than answers?. Clin Hematol Int, 2(4), 2020, 133.
Nandakumar, B., Kumar, S.K., Dispenzieri, A., et al. Clinical characteristics and outcomes of patients with primary plasma cell leukemia in the era of novel agent therapy. Mayo Clin Proc 96:3 (2021), 677–687.
Visram, A., Suska, A., Jurczyszyn, A., Gonsalves, W.I., Practical management and assessment of primary plasma cell leukemia in the novel agent era. Cancer Treat Res Commun, 28, 2021, 100414.
Brink, M., Visser, O., Zweegman, S., et al. 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, 11(2), 2021, 22.
Lawless, S., Iacobelli, S., Knelange, N.S., et al. Comparison of autologous and allogeneic hematopoietic cell transplantation strategies in patients with primary plasma cell leukemia, with dynamic prediction modeling. Haematologica 108:4 (2023), 1105–1114.
Peña, C., Riva, E., Schutz, N., et al. Primary plasma cell leukemia in Latin America: demographic, clinical, and prognostic characteristics. A study of GELAMM group. Leuk Lymphoma 64:4 (2023), 816–821.
Katodritou, E., Kastritis, E., Dalampira, D., et al. 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 98:5 (2023), 730–738.
Jung, S.H., Kim, K., Yoon, S.E., et al. Validation of the revised diagnostic criteria for primary plasma cell leukemia by the Korean Multiple Myeloma Working Party. Blood Cancer J, 12(11), 2022, 157.
Jung, S.H., Lee, J.J., Cho, H.J., et al. P-431 Clinical characteristics, prognostic factors and treatment outcomes in patients diagnosed with primary plasma cell leukemia based on the revised criteria (KMM2204). Clin Lymphoma Myeloma Leuk 23 (2023), S278–S279.
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, 28(1), 2023, 2254556.
Deng, J., Qin, X., Ma, G., et al. Development of a clinical prognostic model for primary plasma cell leukemia patients treated with novel agents: a multicenter retrospective cohort study. Ann Hematol 103:9 (2024), 3691–3699.
Li, A.Y., Kamangar, F., Holtzman, N.G., et al. A clinical perspective on plasma cell leukemia: a single-center experience. Cancers (Basel), 16(11), 2024, 2149.
Almodovar Diaz, A.A., Alouch, S., Dispenzieri, A., et al. Impact of multiple high-risk cytogenetic abnormalities on the survival outcomes of patients with primary plasma cell leukemia. Blood, 144(suppl 1), 2024, 3315.
Tessier, C., LeBlanc, R., Roy, J., et al. Poor outcome despite modern treatments: a retrospective study of 99 patients with primary and secondary plasma cell leukemia. Cancer Med, 13(17), 2024, e70192.
Shahzad, M., Iqbal, Q., Amin, M.K., et al. Outcomes of hematopoietic stem cell transplantation in primary plasma cell leukemia: a systematic review and meta-analysis. Leuk Res, 148, 2024, 107640.
Ataş, Ü., Salim, O., Iltar, U., et al. Survival outcomes of patients with primary plasma cell leukemia in the era of proteasome inhibitors and immunomodulatory agents: a real-life multicenter analysis. Turk J Haematol 41:4 (2024), 225–235.
Venkatesh, P., Mansour, R., Ehsan, H., et al. Optimal treatment for newly diagnosed primary plasma cell leukemia: a retrospective multicenter analysis. Blood, 144(suppl 1), 2024, 3317.
Broughton, M., Bhatta, S., Sharma, N., et al. Evaluation of characteristics and outcomes of patients with primary and secondary plasma cell leukemia treated with modern therapies. Blood, 144(suppl 1), 2024, 6980.
Shalaby, K., Azad, F., Parker, S., et al. Clinical characteristics and survival outcomes of patients with primary and secondary plasma cell leukemia according to the 2021 definition: a single center retrospective study. Clin Lymphoma Myeloma Leuk 25:1 (2025), 67–75.
Musto, P., Simeon, V., Martorelli, M.C., et al. Lenalidomide and low-dose dexamethasone for newly diagnosed primary plasma cell leukemia. Leukemia 28:1 (2014), 222–225.
Royer, B., Minvielle, S., Diouf, M., et al. Bortezomib, doxorubicin, cyclophosphamide, dexamethasone induction followed by stem cell transplantation for primary plasma cell leukemia: a prospective phase II study of the Intergroupe Francophone du Myélome. J Clin Oncol 34:18 (2016), 2125–2132.
van de Donk, N.W.C.J., Minnema, M.C., van der Holt, B., et al. 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 24:10 (2023), 1119–1133.
Gavriatopoulou, M., Musto, P., Caers, J., et al. European myeloma network recommendations on diagnosis and management of patients with rare plasma cell dyscrasias. Leukemia 32:9 (2018), 1883–1898.
Fernández de Larrea, C., Kyle, R.A., Durie, B.G.M., et al. Plasma cell leukemia: consensus statement on diagnostic requirements, response criteria and treatment recommendations by the International Myeloma Working Group. Leukemia 27:4 (2013), 780–791.
Gimsing, P., Holmström, M.O., Wirenfelt Klausen, T., et al. The Danish National Multiple Myeloma Registry. Clin Epidemiol 8 (2016), 583–587.
Zapletalova, M., Krejci, D., Jarkovský, J., Muzik, J., Dusek, L., Pour, L., Epidemiology of plasma cell leukemia in the Czech Republic. Klin Onkol 32:1 (2019), 47–51.
Sant, M., Allemani, C., Tereanu, C., et al. Incidence of hematologic malignancies in Europe by morphologic subtype: results of the HAEMACARE project. Blood 116:19 (2010), 3724–3734.
Granell, M., Calvo, X., Garcia-Guiñón, A., et al. Prognostic impact of circulating plasma cells in patients with multiple myeloma: implications for plasma cell leukemia definition. Haematologica 102:6 (2017), 1099–1104.
Ravi, P., Kumar, S.K., Roeker, L., et al. Revised diagnostic criteria for plasma cell leukemia: results of a Mayo Clinic study with comparison of outcomes to multiple myeloma. Blood Cancer J, 8(12), 2018, 116.
Jano, V., Padilla, I., Castellanos, M., et al. Incidence of primary plasma cell leukemia with the new diagnostic criteria. Clin Lymphoma Myeloma Leuk, 23, 2023, S278 S278.
Jurczyszyn, A., Castillo, J.J., Avivi, I., et al. Secondary plasma cell leukemia: a multicenter retrospective study of 101 patients. Leuk Lymphoma 60:1 (2019), 118–123.
Jurczyszyn, A., Olszewska-Szopa, M., Vesole, D.H., The current state of knowledge about evolution of multiple myeloma to plasma cell leukemia. Clin Lymphoma Myeloma Leuk 23:3 (2023), 188–193.
Papadhimitriou, S.I., Terpos, E., Liapis, K., et al. 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, 10(2), 2022, 209.
Turesson, I., Bjorkholm, M., Blimark, C.H., Kristinsson, S., Velez, R., Landgren, O., Rapidly changing myeloma epidemiology in the general population: increased incidence, older patients, and longer survival. Eur J Haematol 101:2 (2018), 237–244.
Keats, J.J., Chesi, M., Egan, J.B., et al. Clonal competition with alternating dominance in multiple myeloma. Blood 120:5 (2012), 1067–1076.
Peter, J., Danhof, S., Zhou, X., et al. Real-world confirmatory analysis of the current IMWG diagnostic criteria identifies early transformation as major risk factor in plasma cell leukemia. Blood, 144(suppl 1), 2024, 6893.
Bladé, J., Beksac, M., Caers, J., et al. Extramedullary disease in multiple myeloma: a systematic literature review. Blood Cancer J, 12(3), 2022, 45.
Garcı́a-Sanz, R., Orfão, A., González, M., et al. Primary plasma cell leukemia: clinical, immunophenotypic, DNA ploidy, and cytogenetic characteristics. Blood 93:3 (1999), 1032–1037.
Kraj, M., Kopeć-Szlezak, J., Pogłód, R., Kruk, B., Flow cytometric immunophenotypic characteristics of 36 cases of plasma cell leukemia. Leuk Res 35:2 (2011), 169–176.
Bezdekova, R., Jelinek, T., Kralova, R., et al. Necessity of flow cytometry assessment of circulating plasma cells and its connection with clinical characteristics of primary and secondary plasma cell leukaemia. Br J Haematol 195:1 (2021), 95–107.
Avet-Loiseau, H., Andree-Ashley, L.E., Moore, D.I.I., et al. Molecular cytogenetic abnormalities in multiple myeloma and plasma cell leukemia measured using comparative genomic hybridization. Genes Chromosomes Cancer 19:2 (1997), 124–133.
Avet-Loiseau, H., Daviet, A., Brigaudeau, C., et al. Cytogenetic, interphase, and multicolor fluorescence in situ hybridization analyses in primary plasma cell leukemia: a study of 40 patients at diagnosis, on behalf of the Intergroupe Francophone du Myélome and the Groupe Français de Cytogénétique Hématologique. Blood 97:3 (2001), 822–825.
Tiedemann, R.E., Gonzalez-Paz, N., Kyle, R.A., et al. Genetic aberrations and survival in plasma cell leukemia. Leukemia 22:5 (2008), 1044–1052.
Simeon, V., Todoerti, K., La Rocca, F., et al. Molecular classification and pharmacogenetics of primary plasma cell leukemia: an initial approach toward precision medicine. Int J Mol Sci 16:8 (2015), 17514–17534.
Mosca, L., Musto, P., Todoerti, K., et al. Genome-wide analysis of primary plasma cell leukemia identifies recurrent imbalances associated with changes in transcriptional profiles. Am J Hematol 88:1 (2013), 16–23.
Bezieau, S., Devilder, M.C., Avet-Loiseau, H., et al. High incidence of N and K-Ras activating mutations in multiple myeloma and primary plasma cell leukemia at diagnosis. Hum Mutat 18:3 (2001), 212–224.
Lionetti, M., Barbieri, M., Todoerti, K., et al. Molecular spectrum of BRAF, NRAS and KRAS gene mutations in plasma cell dyscrasias: implication for MEK-ERK pathway activation. Oncotarget 6:27 (2015), 24205–24217.
Lionetti, M., Barbieri, M., Todoerti, K., et al. A compendium of DIS3 mutations and associated transcriptional signatures in plasma cell dyscrasias. Oncotarget 6:28 (2015), 26129–26141.
Barbieri, M., Manzoni, M., Fabris, S., et al. Compendium of FAM46C gene mutations in plasma cell dyscrasias. Br J Haematol 174:4 (2016), 642–645.
Lionetti, M., Barbieri, M., Manzoni, M., et al. Molecular spectrum of TP53 mutations in plasma cell dyscrasias by next generation sequencing: an Italian cohort study and overview of the literature. Oncotarget 7:16 (2016), 21353–21361.
Maura, F., Petljak, M., Lionetti, M., et al. Biological and prognostic impact of APOBEC-induced mutations in the spectrum of plasma cell dyscrasias and multiple myeloma cell lines. Leukemia 32:4 (2018), 1044–1048.
Cifola, I., Lionetti, M., Pinatel, E., et al. Whole-exome sequencing of primary plasma cell leukemia discloses heterogeneous mutational patterns. Oncotarget 6:19 (2015), 17543–17558.
Todoerti, K., Agnelli, L., Fabris, S., et al. Transcriptional characterization of a prospective series of primary plasma cell leukemia revealed signatures associated with tumor progression and poorer outcome. Clin Cancer Res 19:12 (2013), 3247–3258.
Rojas, E.A., Corchete, L.A., Mateos, M.V., García-Sanz, R., Misiewicz-Krzeminska, I., Gutiérrez, N.C., Transcriptome analysis reveals significant differences between primary plasma cell leukemia and multiple myeloma even when sharing a similar genetic background. Blood Cancer J, 9(12), 2019, 90.
Lionetti, M., Musto, P., Di Martino, M.T., et al. Biological and clinical relevance of miRNA expression signatures in primary plasma cell leukemia. Clin Cancer Res 19:12 (2013), 3130–3142.
Ronchetti, D., Agnelli, L., Taiana, E., et al. Distinct lncRNA transcriptional fingerprints characterize progressive stages of multiple myeloma. Oncotarget 7:12 (2016), 14814–14830.
Todoerti, K., Calice, G., Trino, S., et al. Global methylation patterns in primary plasma cell leukemia. Leuk Res, 2018, 7395 -102.
Cazaubiel, T., Leleu, X., Perrot, A., et al. Primary plasma cell leukemias displaying t(11;14) have specific genomic, transcriptional, and clinical features. Blood 139:17 (2022), 2666–2672.
Todoerti, K., Taiana, E., Puccio, N., et al. Transcriptomic analysis in multiple myeloma and primary plasma cell leukemia with t(11;14) reveals different expression patterns with biological implications in venetoclax sensitivity. Cancers (Basel), 13(19), 2021, 4898.
Lee, Y., Lee, N., Yoon, S.-S., Yoon, J.H., Lee, D.S., Distinct genetic features in peripheral blood represent the characteristics of circulating plasma cells in primary plasma cell leukemia. Blood, 142(suppl 1), 2023, 3349.
Wu, C., Dongarwar, D., Al Hadidi, S., Racial disparities in plasma cell leukemia outcomes among hospitalized patients in the United States. Clin Hematol Int 5:4 (2023), 1–9.
Wu, Y., Zhang, X., Ma, X., Suo, X., Li, R., Clinical and laboratory characteristics of IgM primary plasma cell leukemia. Clin Lab 69:7 (2023), 1523–1527.
Nakahara, W., Ogawa, T., Matsunaga, H., et al. IgE plasma cell leukemia harboring t(11;14) and 1q amplification. Case Rep Hematol, 2023, 2023, 4747989.
Jurczyszyn, A., Radocha, J., Davila, J., et al. Prognostic indicators in primary plasma cell leukaemia: a multicentre retrospective study of 117 patients. Br J Haematol 180:6 (2018), 831–839.
Musto, P., Progress in the treatment of primary plasma cell leukemia. J Clin Oncol 34:18 (2016), 2082–2084.
Musto, P., Wäsch, R., Plasma cell leukemia: another piece of the puzzle. Haematologica 108:4 (2023), 941–944.
Dimopoulos, M.A., Moreau, P., Terpos, E., et al. Multiple myeloma: EHA-ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol 32:3 (2021), 309–322.
Parrondo, R.D., Moustafa, M.A., Reeder, C., et al. Efficacy of daratumumab-based regimens for the treatment of plasma cell leukemia. Clin Lymphoma Myeloma Leuk 21:5 (2021), 355–360.
Kaiser, M.F., Hall, A., Walker, K., et al. Daratumumab, cyclophosphamide, bortezomib, lenalidomide, and dexamethasone as induction and extended consolidation improves outcome in ultra-high-risk multiple myeloma. J Clin Oncol 41:23 (2023), 3945–3955.
Fan, W., Wang, L., Wang, X., et al. Selinexor in combination with pomalidomide and dexamethasone for the treatment of primary plasma cell leukemia with 1q21+ abnormality: a case report. Medicine (Baltimore), 103(46), 2024, e40447.
Gonsalves, W.I., Buadi, F.K., Kumar, S.K., Combination therapy incorporating Bcl-2 inhibition with Venetoclax for the treatment of refractory primary plasma cell leukemia with t (11;14). Eur J Haematol 100:2 (2018), 215–217.
Jelinek, T., Mihalyova, J., Kascak, M., et al. Single-agent venetoclax induces MRD-negative response in relapsed primary plasma cell leukemia with t(11;14). Am J Hematol 94:1 (2019), E35–E37.
Nalghranyan, S., Singh, A.P., Schinke, C., The combination of venetoclax, daratumumab and dexamethasone for the treatment of refractory primary plasma cell leukemia. Am J Hematol 95:2 (2020), E34–E35.
Roy, T., An, J.B., Doucette, K., Chappell, A.M., Vesole, D.H., Venetoclax in upfront induction therapy for primary plasma cell leukemia with t(11;14) or BCL2 expression. Leuk Lymphoma 63:3 (2022), 759–761.
Charalampous, C., Doucette, K., Chappell, A., Vesole, D.H., Venetoclax-based induction therapy for primary plasma cell leukemia with high BCL-2 expression. Leuk Lymphoma 65:12 (2024), 1901–1904.
Bernardi, C., Beauverd, Y., Tran, T.A., et al. Anti-BCMA and GPRC5D bispecific antibodies in relapsed/refractory primary plasma cell leukemia: a case report. Front Immunol, 15, 2024, 1495233.
Li, C., Cao, W., Que, Y., et al. A phase I study of anti-BCMA CAR T cell therapy in relapsed/refractory multiple myeloma and plasma cell leukemia. Clin Transl Med, 11(3), 2021, e346.
Elmaleh, H., Li, H., Raza, S., et al. Impact of T-cell redirecting therapies on survival outcomes in ultra-high-risk multiple myeloma and plasma cell leukemia. Blood, 144(suppl 1), 2024, 7092.
Hansen, D.K., Sidana, S., Peres, L.C., et al. Idecabtagene vicleucel for relapsed/refractory multiple myeloma: real-world experience from the myeloma CAR T consortium. J Clin Oncol 41:11 (2023), 2087–2097.
Sidana, S., Patel, K.K., Peres, L.C., et al. Safety and efficacy of standard-of-care ciltacabtagene autoleucel for relapsed/refractory multiple myeloma. Blood 145:1 (2025), 85–97.
Gagelmann, N., Dima, D., Merz, M., et al. Development and validation of a prediction model of outcome after B-cell maturation antigen-directed chimeric antigen receptor T-cell therapy in relapsed/refractory multiple myeloma. J Clin Oncol 42:14 (2024), 1665–1675.
Xu, J., Zhang, S., Yan, W., et al. A phase 2 study of CART-ASCT-CART2 sandwich regimen treatment in patients with primary plasma cell leukemia. Blood, 144(suppl 1), 2024, 3389.
Bohra, A., Hassan, R., Zanwar, S., et al. A comparative study of plasma cell detection by peripheral smear and peripheral blood flow cytometry. Blood, 144(suppl 1), 2024, 3319.
Jelinek, T., Bezdekova, R., Zihala, D., et al. More than 2% of circulating tumor plasma cells defines plasma cell leukemia-like multiple myeloma. J Clin Oncol 41:7 (2023), 1383–1392.
Bertamini, L., Oliva, S., Rota-Scalabrini, D., et al. High levels of circulating tumor plasma cells as a key hallmark of aggressive disease in transplant-eligible patients with newly diagnosed multiple myeloma. J Clin Oncol 40:27 (2022), 3120–3131.
Garcés, J.J., Cedena, M.T., Puig, N., et al. Circulating tumor cells for the staging of patients with newly diagnosed transplant-eligible multiple myeloma. J Clin Oncol 40:27 (2022), 3151–3161.
van de Donk, N.W.C.J., How we manage newly diagnosed multiple myeloma with circulating tumor cells. J Clin Oncol 41:7 (2023), 1342–1349.
Hofste Op Bruinink, D., Kuiper, R., van Duin, M., et al. Identification of high-risk multiple myeloma with a plasma cell leukemia-like transcriptomic profile. J Clin Oncol 40:27 (2022), 3132–3150.
Shaughnessy, J.D., Zhan, F., Burington, B.E., et al. A validated gene expression model of high-risk multiple myeloma is defined by deregulated expression of genes mapping to chromosome 1. Blood 109:6 (2007), 2276–2284.
Kuiper, R., Broyl, A., De Knegt, Y., et al. A gene expression signature for high-risk multiple myeloma. Leukemia 26:11 (2012), 2406–2413.
Maura, F., Rajanna, A.R., Ziccheddu, B., et al. Genomic classification and individualized prognosis in multiple myeloma. J Clin Oncol 42:11 (2024), 1229–1240.
Messiou, C., Hillengass, J., Delorme, S., et al. Guidelines for acquisition, interpretation, and reporting of whole-body MRI in myeloma: myeloma response assessment and diagnosis system (MY-RADS). Radiology 291:1 (2019), 5–13.
Mulligan, M.E., Myeloma Response Assessment and Diagnosis System (MY-RADS): strategies for practice implementation. Skeletal Radiol 51:1 (2022), 11–15.
Rata, M., Blackledge, M., Scurr, E., et al. Implementation of whole-body MRI (MY-RADS) within the OPTIMUM/MUKnine multi-centre clinical trial for patients with myeloma. Insights Imaging, 13(1), 2022, 123.
Katodritou, E., Dalampira, D., Delimpasi, S., et al. Central nervous system multiple myeloma: a real-world multi-institutional study of the Greek Myeloma Study Group. Am J Hematol 99:10 (2024), 1897–1905.
Leypoldt, L.B., Tichy, D., Besemer, B., et al. Isatuximab, carfilzomib, lenalidomide, and dexamethasone for the treatment of high-risk newly diagnosed multiple myeloma. J Clin Oncol 42:1 (2024), 26–37.
Facon, T., Dimopoulos, M.-A., Leleu, X.P., et al. Isatuximab, bortezomib, lenalidomide, and dexamethasone for multiple myeloma. N Engl J Med 391:17 (2024), 1597–1609.
Kumar, S., Paiva, B., Anderson, K.C., et al. International Myeloma Working Group consensus criteria for response and minimal residual disease assessment in multiple myeloma. Lancet Oncol 17:8 (2016), e328–e346.
Zhukovsky, S., White, J., Chakraborty, R., et al. Multiple myeloma clinical trials exclude patients with the highest-risk disease: a systematic review of trial exclusion criteria. Leuk Lymphoma 65:14 (2024), 2163–2172.
Chen, P., Zhang, L., Cao, X., et al. Detection of circulating plasma cells in peripheral blood using deep learning-based morphological analysis. Cancer 130:10 (2024), 1884–1893.
Chaudhary, R.K., Patil, P., Ananthesh, L., et al. Identification of signature genes and drug candidates for primary plasma cell leukemia: an integrated system biology approach. Comput Biol Med, 162, 2023, 107090.