Evidence map›Paper›PMID 39576432›Full record

SynthesisAdvances in therapy2025

Efanesoctocog Alfa Versus Emicizumab in Adolescent and Adult Patients With Haemophilia A Without Inhibitors.

María Teresa Álvarez Román, Nana Kragh, Patricia Guyot, Amanda Wilson, Piotr Wojciechowski, Wojciech Margas, Marlena Wdowiak, Elena Santagostino, Alix Arnaud

Registry-linked trialAbstract readSystematic ReviewComparative StudyMeta-Analysis
In one paragraph

Synthesis in Advances in therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04161495 (A Phase 3 Open-Label, Multicenter Study of the Safety, Efficacy, and Pharmacokinetics of Intravenous Recombinant Coagulation Factor VIII Fc-von Willebrand Factor-XTEN Fusion Protein), which is not on this map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–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.

NCT04161495 phase3completednot on this map

A Phase 3 Open-Label, Multicenter Study of the Safety, Efficacy, and Pharmacokinetics of Intravenous Recombinant Coagulation Factor VIII Fc-von Willebrand Factor-XTEN Fusion Protein (rFVIIIFc-VWF-XTEN; BIVV001) in Previously Treated Patients ≥12 Years of Age With Severe Hemophilia A

TypeinterventionalSponsorBioverativ, a Sanofi companyRan2019 to 2022Enrolled159ConditionsFactor VIII DeficiencyArmsefanesoctocog alfa (BIVV001)
3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. 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

9 authors.

María Teresa Álvarez RománThrombosis and Haemostasis Unit, University Hospital La Paz, Madrid, Spain.
Nana KraghSobi, Swedish Orphan Biovitrum AB, 112 76, Stockholm, Sweden. nana.kragh@sobi.com.ORCID 0000-0002-9222-4479
Patricia GuyotSanofi, Cambridge, MA, USA.
Amanda WilsonSanofi, Cambridge, MA, USA.
Piotr WojciechowskiAssignity, Krakow, Poland.
Wojciech MargasAssignity, Krakow, Poland.
Marlena WdowiakPutnam PHMR, Krakow, Poland.
Elena SantagostinoSobi, Basel, Switzerland.
Alix ArnaudSanofi, Cambridge, MA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe phase 3 XTEND-1 trial (NCT04161495) demonstrated that efanesoctocog alfa prophylaxis provided superior bleed protection compared with pre-trial factor VIII (FVIII) prophylaxis in patients with severe haemophilia A. The aim of this study was to indirectly compare the efficacy of efanesoctocog alfa with non-factor replacement therapy emicizumab in adolescent and adult patients with severe haemophilia A without inhibitors.

methodsA systematic literature review was conducted to identify phase 3 trials of emicizumab. Matching-adjusted indirect comparisons were used to compare annualised bleeding rates (ABRs) for any, treated, joint, and spontaneous bleeds, and joint health (measured using Hemophilia Joint Health Score [HJHS]), between efanesoctocog alfa and emicizumab. Estimated effects for different emicizumab regimens were pooled using random-effect meta-analysis to evaluate the overall difference in bleed outcomes between efanesoctocog alfa and emicizumab.

resultsOne emicizumab trial was included (HAVEN 3), which investigated three dosing regimens. In meta-analyses, efanesoctocog alfa once-weekly (Q1W) was associated with significantly lower ABRs for any (incidence rate ratio [95% CI] 0.33 [0.20; 0.53]), any treated (0.49 [0.30; 0.80]) and treated joint (0.51 [0.28; 0.91]) bleeds compared with emicizumab Q1W in non-inhibitor patients with prior prophylaxis or on-demand treatment. Efanesoctocog alfa Q1W was also associated with a significantly better improvement from baseline in HJHS Joint Score (mean difference [95% CI] -2.06 [-3.97; -0.14]) and Total Score (-2.37 [-4.36; -0.39]) versus emicizumab Q1W or every 2 weeks.

conclusionEfanesoctocog alfa prophylaxis was associated with significantly lower rates of any, treated, and joint bleeds and improved joint health compared with emicizumab in patients with severe haemophilia A.

Indexed as

Antibodies, BispecificAntibodies, Monoclonal, HumanizedFactor VIIIHemophilia AHemorrhageAdolescentAdultClinical Trials, Phase III as TopicHumansYoung AdultAntibodies, BispecificAntibodies, Monoclonal, HumanizedemicizumabFactor VIIIAnnualised bleeding rateEfanesoctocog alfaEmicizumabFactor VIIIHaemophilia AIndirect treatment comparison

Identifiers

PMID39576432
PMCPMC11782328

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.