Evidence map›Paper›PMID 27330001›Full record

Trial reportBlood2016

Efficacy and safety of rVIII-SingleChain: results of a phase 1/3 multicenter clinical trial in severe hemophilia A.

Johnny Mahlangu, Kazimierz Kuliczkowski, Faraizah Abdul Karim, Oleksandra Stasyshyn, Marina V Kosinova, Lynda Mae Lepatan, Aleksander Skotnicki, Lisa N Boggio, Robert Klamroth, Johannes Oldenburg and 17 more

Registry-linked trialAbstract readClinical Trial, Phase IClinical Trial, Phase IIIMulticenter Study
In one paragraph

Trial report in Blood, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01486927 (A Phase I/III Open-label, Multicenter, Crossover Safety, Efficacy and Pharmacokinetic Study of Recombinant Coagulation Factor VIII), which is not on this map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing 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.

NCT01486927 phase2 / phase3completednot on this map

A Phase I/III Open-label, Multicenter, Crossover Safety, Efficacy and Pharmacokinetic Study of Recombinant Coagulation Factor VIII (rFVIII) Compared to Recombinant Human Antihaemophilic Factor VIII (rFVIII; INN: Octocog Alfa) in Subjects With Hemophilia A, and a Repeat PK, Safety and Efficacy Study

TypeinterventionalSponsorCSL BehringRan2012 to 2014Enrolled175ConditionsHemophilia AArmsrVIII-SingleChain, Octocog alfa
3 · Its place in the literature

Who cites it

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

  1. Pooled it
  2. Extension Study With rVIII-SingleChain in Previously Untreated Patients (PUPs) With Severe Haemophilia A.Haemophilia : the official journal of the World Federation of Hemophilia · 2025
    Trial
  3. Trial
  4. New therapies in hemophilia: extend the half-life, mimic, or rebalance?Hematology. American Society of Hematology. Education Program · 2025
    Review
  5. Efficacy and Safety of rVIII-SingleChain in Surgical Prophylaxis.Haemophilia : the official journal of the World Federation of Hemophilia · 2025
    Article
  6. Article
  7. Observational
  8. Article
  9. Article
  10. Immunogenicity of Current and New Therapies for Hemophilia A.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. How do we optimally utilize factor concentrates in persons with hemophilia?Hematology. American Society of Hematology. Education Program · 2021
    Review
  17. Article
  18. Review
  19. Article
  20. Efficacy of NuwiqClinical medicine insights. Blood disorders · 2021
    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

27 authors.

Johnny MahlanguDepartment of Molecular Medicine and Haematology, Faculty of Health Sciences, University of the Witwatersrand, National Health Laboratory Service, Charlotte Maxeke Johannesburg Academic Hospital, Johannesburg, South Africa;
Kazimierz KuliczkowskiDepartment of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw, Poland;
Faraizah Abdul KarimHemophilia Clinic, National Blood Centre, Kuala Lumpur, Malaysia;
Oleksandra StasyshynInstitute of Blood Pathology and Transfusion Medicine, National Academy of Medical Sciences of Ukraine, Lviv, Ukraine;
Marina V KosinovaKemerovo Regional Clinical Hospital, Kemerovo, Russia;
Lynda Mae LepatanPerpetual Succour Hospital, Cebu, Philippines;
Aleksander SkotnickiKrakow Medical Centre, Krakow, Poland;
Lisa N BoggioHemophilia and Thrombophilia Center, Rush University Medical Center, Chicago, IL;
Robert KlamrothVivantes Clinic Friedrichshain, Berlin, Germany;
Johannes OldenburgInstitute of Experimental Haematology and Transfusion Medicine, University Clinic Bonn, Bonn, Germany;
Andrzej HellmannDepartment of Hematology and Transplantation, Medical University of Gdansk, Gdansk, Poland;
Elena SantagostinoA. Bianchi Bonomi Hemophilia and Thrombosis Center, IRCCS Ca' Granda Foundation, Maggiore Hospital Policlinico, Milan, Italy;
Ross I BakerWestern Australian Centre for Thrombosis and Haemostasis, Murdoch University, Perth, Australia;
Kathelijn FischerVan Creveldkliniek, University Medical Center Utrecht, Utrecht, The Netherlands;
Joan C GillBlood Center of Wisconsin and Medical College of Wisconsin, Milwaukee, WI;
Stephanie P'NgRoyal Perth Hospital, Perth, Australia;
Pratima ChowdaryKatharine Dormandy Haemophilia Centre and Thrombosis Unit, Royal Free Hospital, London, United Kingdom;
Miguel A EscobarUniversity of Texas Health Science Center and The Gulf States Hemophilia and Thrombophilia Center, Houston, TX;
Claudia Djambas KhayatLebanon Department of Pediatrics, Hotel Dieu de France Hospital, Beirut, Lebanon;
Luminita RusenSanador SRL, Bucharest, Romania;
Debra Bensen-KennedyClinical Research and Development, CSL Behring, King of Prussia, PA;
Nicole BlackmanClinical Research and Development, CSL Behring, King of Prussia, PA;
Tharin LimsakunClinical Research and Development, CSL Behring, King of Prussia, PA;
Alex VeldmanClinical Research and Development, CSL Behring, Marburg, Germany; and.
Katie St LedgerClinical Research and Development, CSL Behring, King of Prussia, PA;
Ingrid PabingerClinical Division of Haematology and Haemostaseology, Medical Clinic I, Medical University Vienna, Vienna, Austria.
AFFINITY Investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recombinant VIII (rVIII)-SingleChain is a novel B-domain-truncated recombinant factor VIII (rFVIII), comprised of covalently bonded factor VIII (FVIII) heavy and light chains. It was designed to have a higher binding affinity for von Willebrand factor (VWF). This phase 1/3 study investigated the efficacy and safety of rVIII-SingleChain in the treatment of bleeding episodes, routine prophylaxis, and surgical prophylaxis. Participants were ≥12 years of age, with severe hemophilia A (endogenous FVIII <1%). The participants were allocated by the investigator to receive rVIII-SingleChain in either an on-demand or prophylaxis regimen. Of the 175 patients meeting study eligibility criteria, 173 were treated with rVIII-SingleChain, prophylactically (N = 146) or on-demand (N = 27). The total cumulative exposure was 14 306 exposure days (EDs), with 120 participants reaching ≥50 EDs and 52 participants having ≥100 EDs. Hemostatic efficacy was rated by the investigator as excellent or good in 93.8% of the 835 bleeds treated and assessed. Across all prophylaxis regimens, the median annualized spontaneous bleeding rate was 0.00 (Q1, Q3: 0.0, 2.4) and the median overall annualized bleeding rate (ABR) was 1.14 (Q1, Q3: 0.0, 4.2). Surgical hemostasis was rated as excellent/good in 100% of major surgeries by the investigator. No participant developed FVIII inhibitors. In conclusion, rVIII-SingleChain is a novel rFVIII molecule showing excellent hemostatic efficacy in surgery and in the control of bleeding events, low ABR in patients on prophylaxis, and a favorable safety profile in this large clinical study. This trial was registered at www.clinicaltrials.gov as #NCT01486927.

Indexed as

Administration, IntravenousAdolescentAdultChildDemographyDose-Response Relationship, DrugFactor VIIIHemophilia AHemorrhageHemostasisHumansMaleMiddle AgedRecombinant ProteinsTreatment OutcomeYoung AdultFactor VIIIRecombinant Proteins

Identifiers

PMID27330001
PMCPMC4974198

What OpenQuestion holds

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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.