Evidence map›Paper›PMID 19364963›Full record

Trial reportJournal of clinical oncology : official journal of the American Society of Clinical Oncology2009

Reticulin accumulation in essential thrombocythemia: prognostic significance and relationship to therapy.

Peter J Campbell, David Bareford, Wendy N Erber, Bridget S Wilkins, Penny Wright, Georgina Buck, Keith Wheatley, Claire N Harrison, Anthony R Green

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
7.2field-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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 129 citations in OpenAlex.

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  16. Bone marrow fibrosis at diagnosis predicts survival for primary acute myeloid leukemia.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2017
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Peter J CampbellDepartment of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK.
David Bareford
Wendy N Erber
Bridget S Wilkins
Penny Wright
Georgina Buck
Keith Wheatley
Claire N Harrison
Anthony R Green
Wellcome Sanger Institute · GB

Funding

Cancer Research UK 8961Medical Research Council G0300497Medical Research Council MC_U137686856Wellcome Trust 088340
6 · The paper itself

Abstract

purposeEssential thrombocythemia (ET) manifests substantial interpatient heterogeneity in rates of thrombosis, hemorrhage, and disease transformation. Bone marrow histology reflects underlying disease activity in ET but many morphological features show poor reproducibility. PATIENTS AND

methodsWe evaluated the clinical significance of bone marrow reticulin, a measure previously shown to have relatively high interobserver reliability, in a large, prospectively-studied cohort of ET patients.

resultsReticulin grade positively correlated with white blood cell (P = .05) and platelet counts (P = .0001) at diagnosis. Elevated reticulin levels at presentation predicted higher rates of arterial thrombosis (hazard ratio [HR], 1.8; 95% CI, 1.1 to 2.9; P = .01), major hemorrhage (HR, 2.0; 95% CI, 1.0 to 3.9; P = .05), and myelofibrotic transformation (HR, 5.5; 95% CI, 1.7 to 18.4; P = .0007) independently of known risk factors. Higher reticulin levels at diagnosis were associated with greater subsequent falls in hemoglobin levels in patients treated with anagrelide (P < .0001), but not in those receiving hydroxyurea (P = .9). Moreover, serial trephine specimens in patients randomly assigned to anagrelide showed significantly greater increases in reticulin grade compared with those allocated to hydroxyurea (P = .0003), and four patients who developed increased bone marrow reticulin on anagrelide showed regression of fibrosis when switched to hydroxyurea. These data suggest that patients receiving anagrelide therapy should undergo surveillance bone marrow biopsy every 2 to 3 years and that those who show substantially increasing reticulin levels are at risk of myelofibrotic transformation and may benefit from changing therapy before adverse clinical features develop.

conclusionOur results demonstrate that bone marrow reticulin grade at diagnosis represents an independent prognostic marker in ET, reflecting activity and/or duration of disease, with implications for the monitoring of patients receiving anagrelide.

Indexed as

BiomarkersBone MarrowHemoglobinsHemorrhageHumansHydroxyureaLeukocyte CountPlatelet Aggregation InhibitorsPlatelet CountPrimary MyelofibrosisPrognosisProspective StudiesQuinazolinesReticulinThrombocythemia, EssentialThrombosisanagrelideBiomarkersHemoglobinsHydroxyureaPlatelet Aggregation InhibitorsQuinazolinesReticulin

Identifiers

PMID19364963
PMCPMC3398138
OpenAlexW2124554489

What OpenQuestion holds

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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.