Evidence map›Paper›PMID 32333327›Full record

ArticleAdvances in therapy2020

Real-World Utilisation and Bleed Rates in Patients with Haemophilia B Who Switched to Recombinant Factor IX Fusion Protein (rIX-FP): A Retrospective International Analysis.

Cedric Hermans, Renato Marino, Catherine Lambert, Sarah Mangles, Patrick Sommerer, Vincent Rives, Geraldine Maro, Giuseppe Malcangi

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Advances in therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

  1. Extended Half-Life Factor Concentrates in Haemophilia Treatment.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2026
    Review
  2. Article
  3. Article
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  10. Association of factor expression levels with annual bleeding rate in people with haemophilia B.Haemophilia : the official journal of the World Federation of Hemophilia · 2023
    Article
  11. Article
  12. Observational
  13. Review
  14. Review
  15. Review
  16. HAEMFIX: Impact of Switching From SHL-FIX to EHL-FIX in Patients With Haemophilia B.Haemophilia : the official journal of the World Federation of Hemophilia
    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

8 authors at 4 institutions in 4 countries.

Cedric HermansHaemostasis and Thrombosis Unit, Division of Haematology, Cliniques universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium. cedric.hermans@uclouvain.be.
Renato MarinoHemophilia and Thrombosis Center, University Hospital of Bari, Bari, Italy.
Catherine LambertHaemostasis and Thrombosis Unit, Division of Haematology, Cliniques universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium.
Sarah ManglesNorth Hampshire Haemophilia Centre, Basingstoke, UK.
Patrick SommererCSL Behring, Hattersheim, Germany.
Vincent RivesCSL Behring, Paris, France.
Geraldine MaroAdivo Associates, San Francisco, CA, USA.
Giuseppe MalcangiHemophilia and Thrombosis Center, University Hospital of Bari, Bari, Italy.
Cliniques Universitaires Saint-Luc · BEUniversity of Bari Aldo Moro · ITBasingstoke and North Hampshire Hospital · GBCSL (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDespite the well-documented benefits of prophylaxis, treatment burden is still a barrier to adherence in patients with haemophilia. An extended half-life fusion protein linking recombinant FIX (rFIX) with human albumin (rIX-FP) has been developed for the treatment of patients with haemophilia B and is indicated for dosing up to every 14 days. This analysis evaluated real-world outcomes in patients switching to rIX-FP from the previous FIX product in Italy, Belgium and the UK.

methodsAnonymised chart data were collected from the pre-existing medical records of patients with haemophilia B between May and September 2018. Patients were included in the analysis if they had been treated with rIX-FP for ≥ 8 weeks. Data were compared between rIX-FP and the patient's prior FIX product.

resultsTwenty-three HTCs from Italy (n = 13), Belgium (n = 3) and the UK (n = 7) provided data for 84 male patients, 92.8% of which had severe haemophilia B. The majority of patients were previously on prophylactic regimens with their prior FIX product (Italy, 44/49; Belgium, 7/10; UK, 22/25). The switch to prophylaxis with rIX-FP led to reductions in mean annualised bleeding rate of 94.3% in Italy, 93.9% in Belgium and 67.7% in the UK compared with prior FIX prophylaxis. Overall, 41% of patients experienced zero spontaneous bleeds prior to switching, compared with 88% following the switch to rIX-FP. The majority of patients had a reduction in dosing frequency following the switch, with 98.6% of patients dosing once weekly or less frequently compared with 9.6% of patients dosing at this frequency with their prior FIX. Mean weekly FIX consumption was reduced compared with prior FIX prophylaxis.

conclusionThis retrospective review of real-world evidence demonstrated that switching to rIX-FP from prior FIX was associated with improved haemostatic efficacy and reduced factor consumption in patients with haemophilia B from Italy, Belgium and the UK.

Indexed as

AdolescentAdultBelgiumCoagulantsFactor IXHemophilia BHumansItalyMaleMiddle AgedRecombinant Fusion ProteinsRetrospective StudiesTreatment OutcomeUnited KingdomYoung AdultCoagulantsFactor IXRecombinant Fusion ProteinsAlbutrepenonacog alfaBelgiumFactor IXHaemophilia BItalyMedical recordsRecombinant fusion proteinsUnited Kingdom

Identifiers

PMID32333327
PMCPMC7467451
OpenAlexW3018611819

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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.