Evidence map›Paper›PMID 29845491›Full record

ReviewDrugs2018

Inhibition of Tissue Factor Pathway Inhibitor (TFPI) as a Treatment for Haemophilia: Rationale with Focus on Concizumab.

Pratima Chowdary

Erratum issuedOpen access · hybridAbstract readReview
In one paragraph

Review in Drugs, 2018. 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 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
4.2field-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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Evaluating the Safety and Efficacy of Concizumab in Hemophilia A/B Patients: A Systematic Review.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
  3. Trial
  4. Article
  5. Computational Modeling of Pro-inflammatory Cytokine-Enhanced Blood Coagulation.Computational and structural biotechnology journal · 2026
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. The Evolution of Hemophilia Therapeutics: An Illustrated Review.Research and practice in thrombosis and haemostasis · 2024
    Article
  12. Long Non-Coding RNAs in Venous Thromboembolism: Where Do We Stand?International journal of molecular sciences · 2023
    Review
  13. Review
  14. Review
  15. Review
  16. Aptamers Regulating the Hemostasis System.Molecules (Basel, Switzerland) · 2022
    Review
  17. Updates on Novel Non-Replacement Drugs for Hemophilia.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  18. Article
  19. Review
  20. Factor-mimetic and rebalancing therapies in hemophilia A and B: the end of factor concentrates?Hematology. American Society of Hematology. Education Program · 2021
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author at 1 institution in 1 country.

Pratima ChowdaryKatharine Dormandy Haemophilia and Thrombosis Centre, Royal Free Hospital, Pond Street, London, NW3 2 QG, UK. p.chowdary@ucl.ac.uk.ORCID http://orcid.org/0000-0002-6690-8586
The Royal Free Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Replacement therapy with missing factor (F) VIII or IX in haemophilia patients for bleed management and preventative treatment or prophylaxis is standard of care. Restoration of thrombin generation through novel mechanisms has become the focus of innovation to overcome limitations imposed by protein replacement therapy. Tissue factor pathway inhibitor (TFPI) is a multivalent Kunitz-type serine protease inhibitor that regulates tissue factor (TF)-induced coagulation through a FXa-dependent feedback inhibition of the TF.FVIIa complex in plasma and on endothelial surfaces. Concizumab is a monoclonal, humanised antibody, specific for the second Kunitz domain of TFPI that binds and inhibits FXa, abolishing the inhibitory effect of TFPI. Concizumab restored thrombin generation in FVIII and FIX deficient plasmas and decreased blood loss in a rabbit haemophilia model. Phase 1 single and multiple dose escalation studies in haemophilia patients demonstrated a dose dependent decrease in TFPI levels and a pro-coagulant effect with increasing d-dimers and prothrombin fragment 1 + 2. A dose dependent increase in peak thrombin and endogenous thrombin potential was observed with values in the normal range when plasma TFPI levels were nearly undetectable. A few haemophilia patients in the highest dose cohorts with complete inhibition of plasma TFPI showed a decreased fibrinogen concentration with normal levels of anti-thrombin and platelets and no evidence of thrombosis. Pharmacokinetic parameters were influenced by binding to the target (TFPI), demonstrating target mediated drug disposition. A trend towards decreasing bleeding tendency was observed and this preventative effect is being studied in Phase 2 studies with additional data gathered to improve our understanding of the therapeutic window and potential for thrombosis.

Indexed as

AnimalsAntibodies, Monoclonal, HumanizedBlood CoagulationClinical Trials as TopicFactor VFactor XaFibrin Fibrinogen Degradation ProductsHemophilia AHumansLipoproteinsPeptide FragmentsProthrombinSignal TransductionThrombinAntibodies, Monoclonal, HumanizedconcizumabFactor VFactor XaFibrin Fibrinogen Degradation Productsfibrin fragment Dlipoprotein-associated coagulation inhibitorLipoproteinsPeptide FragmentsProthrombinprothrombinase complexprothrombin fragment 1.2Thrombin

Identifiers

PMID29845491
PMCPMC6013504
OpenAlexW2806432411

What OpenQuestion holds

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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.