Evidence map›Paper›PMID 25354263›Full record

ArticleJournal of thrombosis and haemostasis : JTH2015

Characterization of the anti-factor VIII immunoglobulin profile in patients with hemophilia A by use of a fluorescence-based immunoassay.

B Boylan, A S Rice, A L Dunn, M D Tarantino, D B Brettler, J C Barrett, C H Miller, Hemophilia Inhibitor Research Study Investigators, Hemophilia Inhibitor Research Study Investigators

Open access · bronzeAbstract read
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 17% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Evaluation of CDC's Hemophilia Surveillance Program - Universal Data Collection (1998-2011) and Community Counts (2011-2019), United States.Morbidity and mortality weekly report. Surveillance summaries (Washington, D.C. : 2002) · 2020
    Article
  8. Article
  9. Review
  10. Evaluation of nonneutralizing antibodies against factor VIII in severe haemophilia A patients from India.Blood coagulation & fibrinolysis : an international journal in haemostasis and thrombosis · 2019
    Article
  11. Tolerating Factor VIII: Recent Progress.Frontiers in immunology · 2019
    Review
  12. Distinguishing lupus anticoagulants from factor VIII inhibitors in haemophilic and non-haemophilic patients.Haemophilia : the official journal of the World Federation of Hemophilia · 2018
    Article
  13. Effects of pre-analytical heat treatment in factor VIII (FVIII) inhibitor assays on FVIII antibody levels.Haemophilia : the official journal of the World Federation of Hemophilia · 2018
    Article
  14. Laboratory testing for factor VIII and IX inhibitors in haemophilia: A review.Haemophilia : the official journal of the World Federation of Hemophilia · 2018
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Nonneutralizing Antibodies in Haemophilia A Patients: To Be Ignored or Not to Be!Haemophilia : the official journal of the World Federation of Hemophilia
    Review
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 at 6 institutions in 1 country.

B BoylanDivision of Blood Disorders, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA, USA.
A S Rice
A L Dunn
M D Tarantino
D B Brettler
J C Barrett
C H Miller
Hemophilia Inhibitor Research Study Investigators
Hemophilia Inhibitor Research Study Investigators
Centers for Disease Control and Prevention · USVirginia Commonwealth University · USBleeding & Clotting Disorders Institute · USEmory University · USNational Center on Birth Defects and Developmental Disabilities · USNational Hemophilia Foundation · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

backgroundThe development of neutralizing antibodies, referred to as inhibitors, against factor VIII is a major complication associated with FVIII infusion therapy for the treatment of hemophilia A (HA). Previous studies have shown that a subset of HA patients and a low percentage of healthy individuals harbor non-neutralizing anti-FVIII antibodies that do not elicit the clinical manifestations associated with inhibitor development.

objectiveTo assess HA patients' anti-FVIII antibody profiles as potential predictors of clinical outcomes.

methodsA fluorescence immunoassay (FLI) was used to detect anti-FVIII antibodies in 491 samples from 371 HA patients.

resultsAssessments of antibody profiles showed that the presence of anti-FVIII IgG1 , IgG2 or IgG4 correlated qualitatively and quantitatively with the presence of an FVIII inhibitor as determined with the Nijmegen-Bethesda assay (NBA). Forty-eight patients with a negative inhibitor history contributed serial samples to the study, including seven patients who had negative NBA titers initially and later converted to being NBA-positive. The FLI detected anti-FVIII IgG1 in five of those seven patients prior to their conversion to NBA-positive. Five of 15 serial-sample patients who had a negative inhibitor history and had anti-FVIII IgG1 later developed an inhibitor, as compared with two of 33 patients with a negative inhibitor history without anti-FVIII IgG1 .

conclusionsThese data provide a rationale for future studies designed both to monitor the dynamics of anti-FVIII antibody profiles in HA patients as a potential predictor of future inhibitor development and to assess the value of the anti-FVIII FLI as a supplement to traditional inhibitor testing.

Indexed as

Spectrometry, FluorescenceAdolescentAutoantibodiesBiomarkersFactor VIIIFluorescence Polarization ImmunoassayHemophilia AHumansImmunoglobulin GMalePredictive Value of TestsPrognosisTime FactorsYoung AdultAutoantibodiesBiomarkersF8 protein, humanFactor VIIIImmunoglobulin Gfactor VIIIfactor VIII deficiencyhemophilia Aimmunoassayinherited blood coagulation disorders

Identifiers

PMID25354263
PMCPMC4383171
OpenAlexW2068319442

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.