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Tefferi A, Barbui T. Aspirin use in essential thrombocythemia: Once-daily or twice-daily or not at all? Am J Hematol 2024; 99:1450-1453. [PMID: 38752361 DOI: 10.1002/ajh.27369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 05/06/2024] [Indexed: 07/10/2024]
Abstract
Asprin dosing strategy in low risk (young and JAK2 mutated without history of thrombosis) or very low risk (young JAK2 wild-type without history of thrombosis) essential thrombocythemia.
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Affiliation(s)
- Ayalew Tefferi
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Tiziano Barbui
- FROM Research Foundation, Papa Giovanni XXIII Hospital, Bergamo, Italy
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2
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Tefferi A, Pardanani A, Gangat N. Treatment-associated decline in JAK2V617F allele burden in polycythemia vera: What does it mean? Am J Hematol 2024; 99:1459-1461. [PMID: 38767433 DOI: 10.1002/ajh.27375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/22/2024]
Affiliation(s)
- Ayalew Tefferi
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Animesh Pardanani
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Naseema Gangat
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Rocca B, Tosetto A, Petrucci G, Rossi E, Betti S, Soldati D, Iurlo A, Cattaneo D, Bucelli C, Dragani A, Di Ianni M, Ranalli P, Palandri F, Vianelli N, Beggiato E, Lanzarone G, Ruggeri M, Carli G, Elli EM, Renso R, Randi ML, Bertozzi I, Loscocco GG, Ricco A, Specchia G, Vannucchi AM, Rodeghiero F, De Stefano V, Patrono C. Long-term pharmacodynamic and clinical effects of twice- versus once-daily low-dose aspirin in essential thrombocythemia: The ARES trial. Am J Hematol 2024; 99:1462-1474. [PMID: 38877813 DOI: 10.1002/ajh.27418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 06/16/2024]
Abstract
Patients with essential thrombocythemia (ET) are treated with once-daily low-dose aspirin to prevent thrombosis, but their accelerated platelet turnover shortens the antiplatelet effect. The short-term Aspirin Regimens in EsSential Thrombocythemia trial showed that twice-daily aspirin dosing restores persistent platelet thromboxane (TX) inhibition. However, the long-term pharmacodynamic efficacy, safety and tolerability of twice-daily aspirin remain untested. We performed a multicenter, randomized, open-label, blinded-endpoint, phase-2 trial in which 242 patients with ET were randomized to 100 mg aspirin twice- or once-daily and followed for 20 months. The primary endpoint was the persistence of low serum TXB2, a surrogate biomarker of antithrombotic efficacy. Secondary endpoints were major and clinically relevant non-major bleedings, serious vascular events, symptom burden assessed by validated questionnaires, and in vivo platelet activation. Serum TXB2 was consistently lower in the twice-daily versus once-daily regimen on 10 study visits over 20 months: median 3.9 ng/mL versus 19.2 ng/mL, respectively; p < .001; 80% median reduction; 95% CI, 74%-85%. No major bleeding occurred. Clinically relevant non-major bleedings were non-significantly higher (6.6% vs. 1.7%), and major thromboses lower (0.8% vs. 2.5%) in the twice-daily versus once-daily group. Patients on the twice-daily regimen had significantly lower frequencies of disease-specific symptoms and severe hand and foot microvascular pain. Upper gastrointestinal pain was comparable in the two arms. In vivo platelet activation was significantly reduced by the twice-daily regimen. In patients with ET, twice-daily was persistently superior to once-daily low-dose aspirin in suppressing thromboxane biosynthesis and reducing symptom burden, with no detectable excess of bleeding and gastrointestinal discomfort.
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Affiliation(s)
- Bianca Rocca
- Department of Safety and Bioethics, Section of Pharmacology, Catholic University School of Medicine, Rome, Italy
- Department NeuroFarBa, University of Florence, Florence, Italy
| | | | - Giovanna Petrucci
- Department of Safety and Bioethics, Section of Pharmacology, Catholic University School of Medicine, Rome, Italy
- Department of Radiological and Hematological Sciences, Section of Hematology, Catholic University School of Medicine, Roma, Italy
| | - Elena Rossi
- Department of Radiological and Hematological Sciences, Section of Hematology, Catholic University School of Medicine, Roma, Italy
- Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Italy
| | - Silvia Betti
- Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Italy
| | - Denise Soldati
- Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Italy
| | - Alessandra Iurlo
- Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Daniele Cattaneo
- Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milano, Italy
| | - Cristina Bucelli
- Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Alfredo Dragani
- Hematology Unit, Department of Oncology and Hematology, Ospedale Civile "Santo Spirito", Pescara, Italy
| | - Mauro Di Ianni
- Hematology Unit, Department of Oncology and Hematology, Ospedale Civile "Santo Spirito", Pescara, Italy
- Department of Medicine and Aging Sciences, "G. D'Annunzio" University, Chieti, Italy
| | - Paola Ranalli
- Hematology Unit, Department of Oncology and Hematology, Ospedale Civile "Santo Spirito", Pescara, Italy
- Department of Medicine and Aging Sciences, "G. D'Annunzio" University, Chieti, Italy
| | - Francesca Palandri
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola-Malpighi, Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Nicola Vianelli
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola-Malpighi, Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Eloise Beggiato
- Department of Oncology, Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino, Torino, Italy
| | - Giuseppe Lanzarone
- Department of Oncology, Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino, Torino, Italy
| | - Marco Ruggeri
- Hematology Department, San Bortolo Hospital, Vicenza, Italy
| | - Giuseppe Carli
- Hematology Department, San Bortolo Hospital, Vicenza, Italy
| | - Elena Maria Elli
- Division of Haematology and Bone Marrow Transplantation Unit, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
| | - Rossella Renso
- Division of Haematology and Bone Marrow Transplantation Unit, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
| | | | - Irene Bertozzi
- Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Giuseppe Gaetano Loscocco
- Department of Experimental and Clinical Medicine, CRIMM, Center of Research and Innovation of Myeloproliferative Neoplasms, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Alessandra Ricco
- Unit of Hematology and Stem Cell Transplantation, AOU Consorziale Policlinico, Bari, Italy
| | | | - Alessandro M Vannucchi
- Department of Experimental and Clinical Medicine, CRIMM, Center of Research and Innovation of Myeloproliferative Neoplasms, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Francesco Rodeghiero
- Hematology Project Foundation, Affiliated to the Department of Hematology, San Bortolo Hospital, Vicenza, Italy
| | - Valerio De Stefano
- Department of Radiological and Hematological Sciences, Section of Hematology, Catholic University School of Medicine, Roma, Italy
- Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Italy
| | - Carlo Patrono
- Department of Safety and Bioethics, Section of Pharmacology, Catholic University School of Medicine, Rome, Italy
- Center of Excellence on Aging, "G. D'Annunzio" University School of Medicine, Chieti, Italy
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Godfrey AL, Sousos N, Frewin R, Prahladan M, Green AC, McGregor A, Khan A, Milne K, Amin F, Torre E, Gudgin EJ, Lambert J, Wilson AJ, Royston D, Harrison CN, Mead AJ. Clinical utility of investigations in triple-negative thrombocytosis: A real-world, multicentre evaluation of UK practice. Br J Haematol 2024. [PMID: 39004100 DOI: 10.1111/bjh.19643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 07/03/2024] [Indexed: 07/16/2024]
Abstract
Diagnosis of essential thrombocythaemia (ET) is challenging in patients lacking JAK2/CALR/MPL mutations. In a retrospective evaluation of 320 patients with 'triple-negative thrombocytosis', we assessed utility of bone marrow histology (90.9% of patients) and myeloid gene panel (MGP, 55.6%). Supportive histology ('myeloproliferative neoplasm-definite/probable', 36.8%) was associated with higher platelet counts and varied between centres. 14.6% MGP revealed significant variants: 3.4% JAK2/CALR/MPL and 11.2% other myeloid genes. Final clinical diagnosis was strongly predicted by histology, not MGP. 23.7% received cytoreduction (17.6% under 60 years). Real-world 'triple-negative' ET diagnosis currently depends heavily on histology; we advocate caution in MGP-negative cases and that specific guidelines are needed.
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Affiliation(s)
- Anna L Godfrey
- Department of Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Nikolaos Sousos
- NIHR Biomedical Research Centre and MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Rebecca Frewin
- Department of Haematology, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK
| | - Mahesh Prahladan
- Department of Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Anna C Green
- Department of Histopathology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Andrew McGregor
- Department of Haematology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Alesia Khan
- Department of Haematology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Kate Milne
- Department of Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Faisal Amin
- Department of Haematology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Elena Torre
- Department of Haematology, Guy's and St Thomas' NHS Foundation Trust, London, UK
- Comprehensive Cancer Centre, King's College London, London, UK
| | - Emma J Gudgin
- Department of Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Jonathan Lambert
- Department of Haematology, University College London Hospitals NHS Foundation Trust, London, UK
| | - Andrew J Wilson
- Department of Haematology, University College London Hospitals NHS Foundation Trust, London, UK
| | - Daniel Royston
- Department of Histopathology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Claire N Harrison
- Department of Haematology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Adam J Mead
- NIHR Biomedical Research Centre and MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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Abu-Zeinah G, Erdos K, Lee N, Lebbe A, Bouhali I, Khalid M, Silver RT, Scandura JM. Are thrombosis, progression, and survival in ET predictable? Blood Cancer J 2024; 14:103. [PMID: 38918372 PMCID: PMC11199579 DOI: 10.1038/s41408-024-01079-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/27/2024] [Accepted: 06/04/2024] [Indexed: 06/27/2024] Open
Affiliation(s)
- Ghaith Abu-Zeinah
- Richard T. Silver Myeloproliferative Neoplasms Center, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY, USA.
| | - Katie Erdos
- Richard T. Silver Myeloproliferative Neoplasms Center, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY, USA
| | - Neville Lee
- Richard T. Silver Myeloproliferative Neoplasms Center, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY, USA
| | | | | | | | - Richard T Silver
- Richard T. Silver Myeloproliferative Neoplasms Center, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY, USA
| | - Joseph M Scandura
- Richard T. Silver Myeloproliferative Neoplasms Center, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY, USA
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Gangat N, Singh A, Ilyas R, Loscocco GG, Elliott M, Begna K, Pardanani A, Tefferi A. Aspirin therapy is associated with a lower risk of pregnancy loss in both JAK2- and CALR-mutated essential thrombocythemia-A Mayo Clinic study of 200 pregnancies. Am J Hematol 2024. [PMID: 38867546 DOI: 10.1002/ajh.27416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 05/20/2024] [Accepted: 05/30/2024] [Indexed: 06/14/2024]
Abstract
Two-hundred pregnancies involving 100 women with essential thrombocythemia (ET) were accessed from Mayo Clinic databases (1990-2023). Median platelet count displayed a decline during pregnancy, nadiring at 48% of baseline, in the third trimester: 704-369 × 109/L. Live birth rate was 72%. Of 53 (27%) unintentional pregnancy losses, 48 (24%) occurred in the first trimester. Other fetal complications included preterm birth 3%, intrauterine growth retardation 3%, and stillbirth 1%. Maternal complications included major hemorrhage (7%), preeclampsia (6%), thrombosis (1%), and placental abruption (0.5%). Antepartum management included no specific therapy in 52 (26%), aspirin alone in 112 (56%), aspirin combined with cytoreductive drugs or systemic anticoagulants in 23 (12%), and other permutations in the remaining. Postpartum systemic anticoagulation was documented in 29 (15%) pregnancies. Unintentional first-trimester loss was predicted by prior fetal loss (43% vs. 18%; p < .01), diabetes mellitus (DM; 67% vs. 23%; p = .02), and absence of aspirin therapy (45% vs. 14%; p < .01); the salutary effect of aspirin therapy was independent of the other two risk factors and apparent in both high (presence of ≥1 risk factor; 33% vs. 61%; p = .07) and low (absence of both risk factors; 10% vs. 34%; p < .01) risk scenarios. The benefit of aspirin therapy, in preventing first-trimester loss, was significant in both JAK2-mutated (18% vs. 50%; p < .01) and CALR-mutated (8% vs. 43%; p < .01) cases. Aspirin use was also associated with a lower risk of venous thrombosis (0% vs. 3%; p = .03). By contrast, the use of systemic anticoagulation, antepartum or postpartum, did not influence fetal or maternal complication rates. CALR mutation and DM predicted maternal hemorrhage (13% vs. 4%; p = .05) and preeclampsia (33% vs. 5%; p = .03), respectively. The current study demonstrates the protective role of aspirin in preventing first-trimester loss in ET, independent of driver mutation status or other risk factors.
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Affiliation(s)
- Naseema Gangat
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | - Amritpal Singh
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | - Rimal Ilyas
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | - Giuseppe Gaetano Loscocco
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
- CRIMM, Center Research and Innovation of Myeloproliferative Neoplasms, University of Florence, AOU Careggi, Florence, Italy
| | | | - Kebede Begna
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Ayalew Tefferi
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
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Lucijanic M, Krecak I, Galusic D, Holik H, Perisa V, Moric Peric M, Zekanovic I, Budimir J, Lekovic D, Kusec R. Triple a score (AAA: age, absolute neutrophil count and absolute lymphocyte count) and its prognostic utility in patients with overt fibrotic and prefibrotic myelofibrosis. Ann Hematol 2024; 103:2157-2159. [PMID: 38652241 DOI: 10.1007/s00277-024-05751-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/06/2024] [Indexed: 04/25/2024]
Affiliation(s)
- Marko Lucijanic
- Hematology Department, University Hospital Dubrava, Av. Gojka Suska 6, Zagreb, 10000, Croatia.
- University of Zagreb School of Medicine, Zagreb, Croatia.
| | - Ivan Krecak
- Department of Internal Medicine, General Hospital of Sibenik-Knin county, Sibenik, Croatia
- University of Rijeka School of Medicine, Rijeka, Croatia
- Sibenik University of Applied Science, Sibenik, Croatia
| | - Davor Galusic
- Department of Hematology, University Hospital of Split, Split, Croatia
- University of Split School of Medicine, Split, Croatia
| | - Hrvoje Holik
- Department of Internal Medicine, Dr. Josip Bencevic General Hospital, Slavonski Brod, Croatia
- University of Osijek Faculty of Medicine, Osijek, Croatia
| | - Vlatka Perisa
- University of Osijek Faculty of Medicine, Osijek, Croatia
- Department of Hematology, Osijek University Hospital, Osijek, Croatia
| | | | - Ivan Zekanovic
- Department of Internal Medicine, General Hospital Zadar, Zadar, Croatia
| | - Josipa Budimir
- Department of Internal Medicine, General Hospital of Sibenik-Knin county, Sibenik, Croatia
| | - Danijela Lekovic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Clinic of Hematology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Rajko Kusec
- Hematology Department, University Hospital Dubrava, Av. Gojka Suska 6, Zagreb, 10000, Croatia
- University of Zagreb School of Medicine, Zagreb, Croatia
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Ellis MH. Queries regarding the two papers each reporting on 1000 essential thrombocythemia patients in BCJ. Blood Cancer J 2024; 14:89. [PMID: 38821956 PMCID: PMC11143183 DOI: 10.1038/s41408-024-01063-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 06/02/2024] Open
Affiliation(s)
- Martin H Ellis
- Hematology Institute and Blood Bank, Meir Medical Center, Kfar Saba, Israel.
- School of Medicine, Faculty of Medicine and Health Sciences, Tel Aviv University, Tel Aviv, Israel.
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Stalder G, Grandoni F, Alberio L. Bleeding heralding the diagnosis of essential thrombocythemia. Eur J Intern Med 2024; 123:165-166. [PMID: 38461063 DOI: 10.1016/j.ejim.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 02/28/2024] [Accepted: 03/05/2024] [Indexed: 03/11/2024]
Affiliation(s)
- Grégoire Stalder
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Rue du Bugnon 46, CH-1011 Lausanne, Switzerland; Service of Hematology, Institut Central des Hôpitaux, Hôpital du Valais, Av. du Grand-Champsec 86, CH-1951 Sion, Switzerland
| | - Francesco Grandoni
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Rue du Bugnon 46, CH-1011 Lausanne, Switzerland
| | - Lorenzo Alberio
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Rue du Bugnon 46, CH-1011 Lausanne, Switzerland.
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Tefferi A, Vannucchi AM, Barbui T. Essential thrombocythemia: 2024 update on diagnosis, risk stratification, and management. Am J Hematol 2024; 99:697-718. [PMID: 38269572 DOI: 10.1002/ajh.27216] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/26/2024]
Abstract
OVERVIEW Essential thrombocythemia is a Janus kinase 2 (JAK2) mutation-prevalent myeloproliferative neoplasm characterized by clonal thrombocytosis; clinical course is often indolent but might be interrupted by thrombotic or hemorrhagic complications, microcirculatory symptoms (e.g., headaches, lightheadedness, and acral paresthesias), and, less frequently, by disease transformation into myelofibrosis (MF) or acute myeloid leukemia. DIAGNOSIS In addition to thrombocytosis (platelets ≥450 × 109 /L), formal diagnosis requires the exclusion of other myeloid neoplasms, including prefibrotic MF, polycythemia vera, chronic myeloid leukemia, and myelodysplastic syndromes with ring sideroblasts and thrombocytosis. Bone marrow morphology typically shows increased number of mature-appearing megakaryocytes distributed in loose clusters. GENETICS Approximately 80% of patients express myeloproliferative neoplasm driver mutations (JAK2, CALR, MPL), in a mutually exclusive manner; in addition, about 50% harbor other mutations, the most frequent being TET2 (9%-11%), ASXL1 (7%-20%), DNMT3A (7%), and SF3B1 (5%). Abnormal karyotype is seen in <10% of patients and includes +9/20q-/13q-. SURVIVAL AND PROGNOSIS Life expectancy is less than that of the control population. Median survival is approximately 18 years but exceeds >35 years in younger patients. The triple A survival risk model, based on Age, Absolute neutrophil count, and Absolute lymphocyte count, effectively delineates high-, intermediate-1-, intermediate-2-, and low-risk disease with corresponding median survivals of 8, 14, 21, and 47 years. RISK FACTORS FOR THROMBOSIS Four risk categories are considered: very low (age ≤60 years, no thrombosis history, JAK2 wild-type), low (same as very low but JAK2 mutation present), intermediate (same as low but age >60 years), and high (thrombosis history or age >60 years with JAK2 mutation). MUTATIONS AND PROGNOSIS MPL and CALR-1 mutations have been associated with increased risk of MF transformation; spliceosome with inferior overall and MF-free survival; TP53 with leukemic transformation, and JAK2V617F with thrombosis. Leukemic transformation rate at 10 years is <1% but might be higher in JAK2-mutated patients with extreme thrombocytosis and those with abnormal karyotype. TREATMENT The main goal of therapy is to prevent thrombosis. In this regard, once-daily low-dose aspirin is advised for all patients and twice daily for low-risk disease. Cytoreductive therapy is advised for high-risk and optional for intermediate-risk disease. First-line cytoreductive drugs of choice are hydroxyurea and pegylated interferon-α and second-line busulfan. ADDITIONAL CONTENT The current review includes specific treatment strategies in the context of extreme thrombocytosis, pregnancy, splanchnic vein thrombosis, perioperative care, and post-essential thrombocythemia MF, as well as new investigational drugs.
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Affiliation(s)
- Ayalew Tefferi
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Alessandro Maria Vannucchi
- CRIMM, Center Research and Innovation of Myeloproliferative Neoplasms, University of Florence, AOU Careggi, Florence, Italy
| | - Tiziano Barbui
- Research Foundation, Papa Giovanni XXIII Hospital, Bergamo, Italy
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Barbui T, Carobbio A. Prediction models for essential thrombocythemia from two longitudinal studies involving 2000 patients. Blood Cancer J 2024; 14:17. [PMID: 38253717 PMCID: PMC10803320 DOI: 10.1038/s41408-024-00987-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Affiliation(s)
- Tiziano Barbui
- FROM Research Foundation, Papa Giovanni XXIII Hospital, Bergamo, Italy.
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