Evidence map›Paper›PMID 24366362›Full record

ArticleBlood2014

JAK2 or CALR mutation status defines subtypes of essential thrombocythemia with substantially different clinical course and outcomes.

Elisa Rumi, Daniela Pietra, Virginia Ferretti, Thorsten Klampfl, Ashot S Harutyunyan, Jelena D Milosevic, Nicole C C Them, Tiina Berg, Chiara Elena, Ilaria C Casetti and 11 more

Open access · greenAbstract read
In one paragraph

Article in Blood, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 259 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
259citing papers in PubMed, 4 pooled it
36.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

259 citing papers in PubMed, 4 syntheses or guidelines pooled it, 576 citations in OpenAlex.

  1. Guideline
  2. Pooled it
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  4. Estimation of diagnosis and prognosis in ET by assessment of CALR and JAK2Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2017
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  8. Hydroxycarbamide Plus Aspirin Versus Aspirin Alone in Patients With Essential Thrombocythemia Age 40 to 59 Years Without High-Risk Features.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2018
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  15. Observational
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199 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

21 authors at 3 institutions in 2 countries.

Elisa RumiDepartment of Hematology Oncology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy;
Daniela Pietra
Virginia Ferretti
Thorsten Klampfl
Ashot S Harutyunyan
Jelena D Milosevic
Nicole C C Them
Tiina Berg
Chiara Elena
Ilaria C Casetti
Chiara Milanesi
Emanuela Sant'antonio
Marta Bellini
Elena Fugazza
Maria C Renna
Emanuela Boveri
Cesare Astori
Cristiana Pascutto
Robert Kralovics
Mario Cazzola
Associazione Italiana per la Ricerca sul Cancro Gruppo Italiano Malattie Mieloproliferative Investigators
University of Pavia · ITAustrian Academy of Sciences · ATMedical University of Vienna · AT

Funding

Austrian Science Fund FWF P 23257
6 · The paper itself

Abstract

Patients with essential thrombocythemia may carry JAK2 (V617F), an MPL substitution, or a calreticulin gene (CALR) mutation. We studied biologic and clinical features of essential thrombocythemia according to JAK2 or CALR mutation status and in relation to those of polycythemia vera. The mutant allele burden was lower in JAK2-mutated than in CALR-mutated essential thrombocythemia. Patients with JAK2 (V617F) were older, had a higher hemoglobin level and white blood cell count, and lower platelet count and serum erythropoietin than those with CALR mutation. Hematologic parameters of patients with JAK2-mutated essential thrombocythemia or polycythemia vera were related to the mutant allele burden. While no polycythemic transformation was observed in CALR-mutated patients, the cumulative risk was 29% at 15 years in those with JAK2-mutated essential thrombocythemia. There was no significant difference in myelofibrotic transformation between the 2 subtypes of essential thrombocythemia. Patients with JAK2-mutated essential thrombocythemia and those with polycythemia vera had a similar risk of thrombosis, which was twice that of patients with the CALR mutation. These observations are consistent with the notion that JAK2-mutated essential thrombocythemia and polycythemia vera represent different phenotypes of a single myeloproliferative neoplasm, whereas CALR-mutated essential thrombocythemia is a distinct disease entity.

Indexed as

MutationAdolescentAdultAgedAged, 80 and overAllelesCalreticulinCell Transformation, NeoplasticCodonExonsFemaleGranulocytesHumansJanus Kinase 2MaleMiddle AgedCalreticulinCodonJanus Kinase 2MPL protein, humanReceptors, Thrombopoietin

Identifiers

PMID24366362
PMCPMC3945864
OpenAlexW2090885521

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.