The risk of thrombosis in essential thrombocythemia is associated with the type of <i>CALR</i> mutation: A multicentre collaborative study
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- Manuel M. Pérez Encinas
- Hematology Department Hospital Clínico Universitario de Santiago de Compostela Santiago de Compostela Galicia Spain
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- Marta Sobas
- Department of Hematology and Bone Marrow Transplantation Wroclaw Medical University Wroclaw Poland
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- María Teresa Gómez‐Casares
- Hematology Department Hospital Universitario de Gran Canaria Dr.Negrín Las Palmas de Gran Canaria Spain
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- Aitor Abuin Blanco
- Hematology Department Hospital Clínico Universitario de Santiago de Compostela Santiago de Compostela Galicia Spain
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- María Soledad Noya Pereira
- Hematology Department Hospital Clínico Universitario de A Coruña A Coruña Spain
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- José María Raya
- Hematology Department Hospital, Universitario de Canarias Santa Cruz de Tenerife Spain
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- Marcio M. Andrade‐Campos
- Hematology Department Hospital del Mar‐IMIM Barcelona Spain
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- Alberto Álvarez Larrán
- Hematology Department Hospital Clínic Barcelona Spain
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- Krzysztof Lewandowski
- Department of Hematology and Bone Marrow Transplantation University of Medical Sciences Poznan Poland
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- Szukalski Łukasz
- Department of Hematology Collegium Medicum in Bydgoszcz Nicolaus Copernicus University in Torun Torun Poland
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- Juan Carlos Hernández Boluda
- Hematology Department Hospital Clínico Valencia Spain
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- Francisca Ferrer‐Marín
- Hematology Department Hospital Morales Meseguer IMIB UCAM Murcia Spain
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- María Laura Fox
- Hematology Department Hospital Vall d‘Hebron Barcelona Spain
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- Aleksandra Gołos
- Department of Clinical Oncology and Chemotherapy Magodent Hospital Warsaw Poland
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- Mercedes Gasior Kabat
- Hematology Department Madrid Spain
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- Elena Magro Mazo
- Hematology Department Hospital Príncipe de Asturias Alcalá de Henares Madrid Spain
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- Anna Czyż
- Department of Hematology and Bone Marrow Transplantation Wroclaw Medical University Wroclaw Poland
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- Alejandro Martín Martín
- Hematology Department Hospital, Universitario de Canarias Santa Cruz de Tenerife Spain
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- Beatriz Bellosillo Paricio
- Hematology Department Hospital del Mar‐IMIM Barcelona Spain
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- Celsa Quinteiro García
- Genomics Laboratory Fundación Pública Galega de Medicina Xenómica Santiago de Compostela Spain
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- Jesús María González Martín
- Investigation Unit Hospital Universitario de Gran Canaria Dr. Negrín Las Palmas Spain
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- Ruth Stuckey
- Hematology Department Hospital Universitario de Gran Canaria Dr.Negrín Las Palmas de Gran Canaria Spain
抄録
<jats:title>Abstract</jats:title><jats:sec><jats:title>Objectives</jats:title><jats:p>In patients with essential thrombocythemia (ET), after the <jats:italic>JAK2</jats:italic>V617F driver mutation, mutations in <jats:italic>CALR</jats:italic> are common (classified as type 1, 52‐bp deletion or type 2, 5‐bp insertion). <jats:italic>CALR</jats:italic> mutations have generally been associated with a lower risk of thrombosis. This study aimed to confirm the impact of <jats:italic>CALR</jats:italic> mutation type on thrombotic risk.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>We retrospectively investigated 983 ET patients diagnosed in Spanish and Polish hospitals.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>With 7.5 years of median follow‐up from diagnosis, 155 patients (15.8%) had one or more thrombotic event. The 5‐year thrombosis‐free survival (TFS) rate was 83.8%, 91.6% and 93.9% for the <jats:italic>JAK2</jats:italic>V617F, <jats:italic>CALR</jats:italic>‐type 1 and <jats:italic>CALR</jats:italic>‐type 2 groups, respectively (<jats:italic>P</jats:italic> = .002). Comparing <jats:italic>CALR</jats:italic>‐type 1 and <jats:italic>CALR</jats:italic>‐type 2 groups, TFS for venous thrombosis was lower in <jats:italic>CALR</jats:italic>‐type 1 (<jats:italic>P</jats:italic> = .046), with no difference in TFS for arterial thrombosis observed. The cumulative incidence of thrombosis was significantly different comparing <jats:italic>JAK2</jats:italic>V617F vs <jats:italic>CALR</jats:italic>‐type 2 groups but not <jats:italic>JAK2</jats:italic>V617F vs <jats:italic>CALR</jats:italic>‐type 1 groups. Moreover, <jats:italic>CALR‐</jats:italic>type 2 mutation was a statistically significant protective factor for thrombosis with respect to <jats:italic>JAK2</jats:italic>V617F in multivariate logistic regression (OR: 0.45, <jats:italic>P</jats:italic> = .04) adjusted by age.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Our results suggest that <jats:italic>CALR</jats:italic> mutation type has prognostic value for the stratification of thrombotic risk in ET patients.</jats:p></jats:sec>
収録刊行物
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- European Journal of Haematology
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European Journal of Haematology 106 (3), 371-379, 2020-12-30
Wiley
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キーワード
詳細情報 詳細情報について
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- CRID
- 1360294646942401920
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- ISSN
- 16000609
- 09024441
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- データソース種別
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- Crossref