Evidence map›Paper›PMID 29296914›Full record

ArticleBlood advances2017

Severe platelet dysfunction in NHL patients receiving ibrutinib is absent in patients receiving acalabrutinib.

Alexander P Bye, Amanda J Unsworth, Michael J Desborough, Catherine A T Hildyard, Niamh Appleby, David Bruce, Neline Kriek, Sophie H Nock, Tanya Sage, Craig E Hughes and 1 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Blood advances, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 68 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 1 pooled it
7.1field-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

68 citing papers in PubMed, 1 synthesis or guideline pooled it, 124 citations in OpenAlex.

  1. Pooled it
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  6. Article
  7. Cardiovascular Toxicity of BTKi in Chronic B-Cell Malignancies.Reviews in cardiovascular medicine · 2026
    Review
  8. Article
  9. Can drug-induced platelet dysfunction be reversed?Research and practice in thrombosis and haemostasis · 2026
    Review
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  13. Review
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8 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

Alexander P ByeInstitute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom.
Amanda J UnsworthInstitute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom.
Michael J DesboroughOxford Haemophilia and Thrombosis Centre, Oxford Biomedical Research Centre, Churchill Hospital, Oxford, United Kingdom.
Catherine A T HildyardDepartment of Haematology, Churchill Hospital, Oxford University Hospitals National Health Services Foundation Trust, Oxford, United Kingdom; and.
Niamh ApplebyDepartment of Haematology, Churchill Hospital, Oxford University Hospitals National Health Services Foundation Trust, Oxford, United Kingdom; and.
David BruceDepartment of Haematology, Churchill Hospital, Oxford University Hospitals National Health Services Foundation Trust, Oxford, United Kingdom; and.
Neline KriekInstitute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom.
Sophie H NockInstitute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom.
Tanya SageInstitute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom.
Craig E HughesInstitute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom.
Jonathan M GibbinsInstitute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom.
University of Reading · GBChurchill Hospital · GBNational Health Service · GBUniversity of Oxford · GB

Funding

British Heart Foundation RG/15/2/31224
6 · The paper itself

Abstract

The Bruton tyrosine kinase (Btk) inhibitor ibrutinib induces platelet dysfunction and causes increased risk of bleeding. Off-target inhibition of Tec is believed to contribute to platelet dysfunction and other side effects of ibrutinib. The second-generation Btk inhibitor acalabrutinib was developed with improved specificity for Btk over Tec. We investigated platelet function in patients with non-Hodgkin lymphoma (NHL) receiving ibrutinib or acalabrutinib by aggregometry and by measuring thrombus formation on collagen under arterial shear. Both patient groups had similarly dysfunctional aggregation responses to collagen and collagen-related peptide, and comparison with mechanistic experiments in which platelets from healthy donors were treated with the Btk inhibitors suggested that both drugs inhibit platelet Btk and Tec at physiological concentrations. Only ibrutinib caused dysfunctional thrombus formation, whereas size and morphology of thrombi following acalabrutinib treatment were of normal size and morphology. We found that ibrutinib but not acalabrutinib inhibited Src family kinases, which have a critical role in platelet adhesion to collagen that is likely to underpin unstable thrombus formation observed in ibrutinib patients. We found that platelet function was enhanced by increasing levels of von Willebrand factor (VWF) and factor VIII (FVIII) ex vivo by addition of intermediate purity FVIII (Haemate P) to blood from patients, resulting in consistently larger thrombi. We conclude that acalabrutinib avoids major platelet dysfunction associated with ibrutinib therapy, and platelet function may be enhanced in patients with B-cell NHL by increasing plasma VWF and FVIII.

Identifiers

PMID29296914
PMCPMC5728643
OpenAlexW2770172979

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.