Evidence map›Paper›PMID 23645693›Full record

Trial reportHaematologica2013

Impact of being underweight or overweight on factor VIII dosing in hemophilia A patients.

Séverine Henrard, Niko Speybroeck, Cedric Hermans

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Haematologica, 2013. 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
2.5field-weighted citation impact, top 10% 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, 41 citations in OpenAlex.

  1. Trial
  2. How do we optimally utilize factor concentrates in persons with hemophilia?Hematology. American Society of Hematology. Education Program · 2021
    Review
  3. Review
  4. Review
  5. Article
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  7. Article
  8. The Authors Respond.Journal of managed care & specialty pharmacy · 2020
    Article
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  10. Review
  11. Article
  12. Article
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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

3 authors at 2 institutions in 1 country.

Séverine HenrardInstitute of Health and Society (IRSS), Université Catholique de Louvain, Brussels, Belgium.
Niko Speybroeck
Cedric Hermans
UCLouvain · BECliniques Universitaires Saint-Luc · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Since 1981, the number of factor VIII units to infuse into patients with hemophilia A in order to achieve adequate circulating factor VIII levels has been calculated using the formula: [body weight(kg)× desired factor VIII increase(%)]/2, assuming a factor VIII recovery value of 2 for all patients. This study's aim was to evaluate the impact of several morphometric parameters and various coagulation factor concentrates on factor VIII recovery.The analysis included 201 hemophilia A adults (>18 years of age) who were carefully selected from eight pharmacokinetic clinical trials using three recombinant factor VIII concentrates (Advate®, Kogenate® FS, or ReFactoAF®/Xyntha®). Regression tree analysis was used to identify factor VIII recovery predictors. The median factor VIII recovery was 2.16 for all patients. Using regression tree analysis, patients were separated into three groups on the basis of body mass index: below 20.3 kg/m(2), between 20.3 and 29.5 kg/m(2), and 29.6 kg/m(2) or more. Each group had a significantly different median factor VIII recovery (P<0.001): 1.60, 2.14, and 2.70, respectively. The type of coagulation factor concentrate had no influence on recovery in the regression tree. In conclusion, factor VIII dosing should be adapted to underweight and overweight patients, as a factor VIII recovery of 2 does not apply to these patients. Ideal body weight should be considered instead of actual body weight in the dose calculations.

Indexed as

Body Mass IndexAdultCohort StudiesFactor VIIIFemaleHemophilia AHumansMaleOverweightThinnessYoung AdultF8 protein, humanFactor VIII

Identifiers

PMID23645693
PMCPMC3762107
OpenAlexW2122846455

What OpenQuestion holds

Textmetadata
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.