Evidence map›Paper›PMID 32542961›Full record

Trial reportHaemophilia : the official journal of the World Federation of Hemophilia2020

High adherence to prophylaxis regimens in haemophilia B patients receiving rIX-FP: Evidence from clinical trials and real-world practice.

Maria Elisa Mancuso, Johannes Oldenburg, Lisa Boggio, Gili Kenet, Anthony Chan, Carmen Altisent, Wilfried Seifert, Elena Santagostino

Abstract readClinical Trial, Phase III
In one paragraph

Trial report in Haemophilia : the official journal of the World Federation of Hemophilia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Observational
  5. Article
  6. Long-term prophylaxis: what are our options and how to define success?Hematology. American Society of Hematology. Education Program · 2022
    Review
  7. Review
  8. Article
  9. Review
  10. How do we optimally utilize factor concentrates in persons with hemophilia?Hematology. American Society of Hematology. Education Program · 2021
    Review
  11. 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.

Maria Elisa MancusoAngelo Bianchi Bonomi Hemophilia and Thrombosis Center, Foundation IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.
Johannes OldenburgInstitute of Experimental Hematology and Transfusion Medicine, University Clinic Bonn, Bonn, Germany.ORCID https://orcid.org/0000-0002-1585-4100
Lisa BoggioRush Hemophilia & Thrombophilia Center, Rush University Medical Center, Chicago, IL, USA.
Gili KenetThe Israeli National Hemophilia Center, Sheba Medical Center, Tel Hashomer, Sackler Medical School, Tel Aviv University, Tel Aviv, Israel.ORCID https://orcid.org/0000-0003-3494-9823
Anthony ChanDepartment of Pediatrics, McMaster University, Hamilton, ON, Canada.
Carmen AltisentHaemophilia Centre, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
Wilfried SeifertCSL Behring, Marburg, Germany.
Elena SantagostinoAngelo Bianchi Bonomi Hemophilia and Thrombosis Center, Foundation IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.ORCID https://orcid.org/0000-0001-9639-6422

Funding

CSL Behring
6 · The paper itself

Abstract

introductionAdherence to prophylaxis regimens is essential for bleed prevention in haemophilia but remains a challenge due to the need for frequent infusions.

aimTo evaluate patient adherence to prophylaxis regimens with a long-acting recombinant factor IX (rIX-FP; IDELVION

methodsIn two phase 3 clinical studies, patients with haemophilia B (FIX ≤2%) recorded their dose, dosing frequency and rIX-FP consumption in an e-diary. Adherence to prescribed prophylaxis regimens was assessed in all patients and to prescribed dose in patients ≥12 years only. Additionally, adherence to rIX-FP prophylaxis regimens in real-world practice was captured.

resultsIn clinical studies, 94.9% (n = 56/59) of patients ≥12 years and 100% (n = 27) of paediatric patients received ≥80% of the expected number of infusions for their assigned prophylaxis schedule. Overall, mean adherence rate was 95.5% across all prophylaxis regimens in patients ≥12 years and 97.9% with a 7-day regimen in paediatric patients. In patients ≥12 years, 85.7% (n = 54/63) were dose adherent, defined as receiving within 10% of their prescribed dose ≥80% of the time. In real-world practice, adherence was observed in 100% (n = 14 and n = 15, respectively) of patients in two haemophilia treatment centres and 57.1% (n = 4/7) of patients in a third centre; non-adherence (n = 3/7) was linked to insurance-related and parental issues.

conclusionIn clinical studies, patients with haemophilia B had high adherence rates to rIX-FP prophylaxis regimens with a variety of dosing intervals, enabling them to achieve very low bleeding rates. High adherence may also be achievable in real-world practice.

Indexed as

AdolescentAdultAgedChildFactor IXHemophilia BHemorrhageHumansInfusions, IntravenousMiddle AgedPractice Patterns, Physicians'Recombinant Fusion ProteinsSerum AlbuminTreatment Adherence and ComplianceYoung Adultalbutrepenonacog alfaFactor IXRecombinant Fusion ProteinsSerum Albuminadherencealbutrepenonacog alfafactor IXhaemophilia BrIX-FPtreatment

Identifiers

PMID32542961
PMCPMC7496492

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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.