Evidence map›Paper›PMID 21691276›Full record

ArticleLeukemia2011

Primary myelofibrosis with or without mutant MPL: comparison of survival and clinical features involving 603 patients.

A Pardanani, P Guglielmelli, T L Lasho, A Pancrazzi, C M Finke, A M Vannucchi, A Tefferi

Abstract read
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In one paragraph

Article in Leukemia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
5.0field-weighted citation impact, top 5% 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

25 citing papers in PubMed, 68 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Primary myelofibrosis with concurrentWorld journal of clinical cases · 2020
    Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Prognosis of Primary Myelofibrosis in the Genomic Era.Clinical lymphoma, myeloma & leukemia · 2016
    Review
  12. Article
  13. Guidelines for the management of myeloproliferative neoplasms.The Korean journal of internal medicine · 2015
    Review
  14. Novel therapies for myelofibrosis.Leukemia & lymphoma · 2015
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

A PardananiDepartment of Medicine, Division of Hematology, Mayo Clinic, Rochester, MN 55905, USA.
P Guglielmelli
T L Lasho
A Pancrazzi
C M Finke
A M Vannucchi
A Tefferi
Mayo Clinic in Arizona · USUniversity of Florence · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

MPL and JAK2V617F mutation analysis was performed in 603 patients with primary myelofibrosis (PMF) seen at the Mayo Clinic, USA (n=329) or University of Florence, Italy (n=274). Mutant MPL was detected in 49 (8.1%) patients and JAK2V617F in 350 (58%); 4 patients showed both mutations. MPLW515L/K was the commonest mutation; 2 patients showed novel mutations (L513ins and Q516-P518insAAAA). The US and Italy patient cohorts were separately analyzed for comparison of survival and clinical features between MPL-mutated, JAK2-mutated and JAK2/MPL-unmutated cases. JAK2/MPL-unmutated patients were significantly younger than their JAK2-mutated counterparts, in both patient cohorts (P<0.01). In the Florence only cohort, the presence of mutant MPL was associated with older age (P<0.01) and constitutional symptoms (P=0.04) and JAK2V617F with higher hemoglobin (P<0.01) and leukocyte (P=0.03) count; neither patient cohort showed significant associations with platelet count, hemoglobin <10 g/dl, abnormal/unfavorable karyotype, spleen size or prognostic score distribution. To date, 240 deaths and 79 leukemic transformations have been documented among all 603 study patients. Multivariable analysis disclosed no significant difference in overall or leukemia-free survival between the three molecular subgroups. We conclude that the presence of mutant MPL has narrow and inconsistent phenotypic effect in PMF and does not influence overall or leukemia-free survival.

Indexed as

AdolescentAdultAgedAged, 80 and overCohort StudiesFemaleFollow-Up StudiesHumansItalyJanus Kinase 2KaryotypeMaleMiddle AgedMutationPrimary MyelofibrosisPrognosisJAK2 protein, humanJanus Kinase 2MPL protein, humanReceptors, Thrombopoietin

Identifiers

PMID21691276
OpenAlexW2049793290

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.