Evidence map›Paper›PMID 21052089›Full record

Trial reportLeukemia2011

A phase-2 trial of low-dose pomalidomide in myelofibrosis.

K H Begna, R A Mesa, A Pardanani, W J Hogan, M R Litzow, R F McClure, A Tefferi

Abstract readClinical Trial, Phase II
PubMed Publisher
In one paragraph

Trial report in Leukemia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
7.9field-weighted citation impact, top 2% 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

41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 107 citations in OpenAlex.

  1. Guideline
  2. Janus kinase-1 and Janus kinase-2 inhibitors for treating myelofibrosis.The Cochrane database of systematic reviews · 2015
    Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Management of Myelofibrosis-Related Cytopenias.Current hematologic malignancy reports · 2018
    Review
  15. Review
  16. Review
  17. Myelofibrosis: an update on drug therapy in 2016.Expert opinion on pharmacotherapy · 2016
    Review
  18. New Strategies in Myeloproliferative Neoplasms: The Evolving Genetic and Therapeutic Landscape.Clinical cancer research : an official journal of the American Association for Cancer Research · 2016
    Review
  19. Review
  20. Review
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 1 country.

K H BegnaDivision of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.
R A Mesa
A Pardanani
W J Hogan
M R Litzow
R F McClure
A Tefferi
Mayo Clinic · USMayo Clinic in Arizona · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In a previous study, we reported on the safety and efficacy of low-dose (0.5 mg) pomalidomide and prednisone and pomalidomide alone (2 mg/day), for the treatment of anemia associated with myelofibrosis (MF). The current study examined the value of low-dose pomalidomide alone. The main eligibility criterion was transfusion-dependency or hemoglobin <10 gm per 100 ml. Anemia response was assessed by International Working Group criteria. Pomalidomide (0.5 mg/day) was given to 58 patients (median age 68 years); 46 (79%) were transfusion-dependent and 42 were JAK2V617F positive. Anemia response was documented only in the presence of JAK2V617F (24 vs 0%; P=0.03) but was not further affected by mutant allele burden (P=0.39); 9 of the 10 anemia responders became transfusion independent. Anemia response in JAK2V617F-positive patients was predicted by the presence of pomalidomide-induced basophilia in the first month of therapy (38 vs 6%; P=0.02) or absence of marked splenomegaly (38 vs 11%; P=0.05). A total of 14 (58%) of 24 patients with a platelet count of ≤ 100 × 10(9) cells/l experienced a >50% increment in platelet count. There were no spleen responses. Grade 3 or 4 thrombocytopenia/neutropenia occurred in 2%/0% of patients. Low-dose pomalidomide is effective in the treatment of anemia associated with JAK2V617F-positive MF; response is predicted by early drug-induced basophilia.

Indexed as

AgedAged, 80 and overAnemiaBasophilsErythrocyte TransfusionFemaleHumansJanus Kinase 2MaleMiddle AgedMutationPrimary MyelofibrosisThalidomideJAK2 protein, humanJanus Kinase 2pomalidomideThalidomide

Identifiers

PMID21052089
OpenAlexW2029548336

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.