Evidence map›Paper›PMID 24018621›Full record

ArticleThe pharmacogenomics journal2014

Ethnicity-specific pharmacogenetics: the case of warfarin in African Americans.

W Hernandez, E R Gamazon, K Aquino-Michaels, S Patel, T J O'Brien, A F Harralson, R A Kittles, A Barbour, M Tuck, S D McIntosh and 4 more

Open access · greenAbstract readValidation Study
In one paragraph

Article in The pharmacogenomics journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 pooled it
10.0field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 2 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Trial
  4. Review
  5. The Identification of NovelFrontiers in pharmacology · 2022
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  7. Observational
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  12. Genetic Ancestry Analysis Reveals Misclassification of Commonly Used Cancer Cell Lines.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2019
    Article
  13. Review
  14. Essential Characteristics of Pharmacogenomics Study Publications.Clinical pharmacology and therapeutics · 2019
    Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Biomarkers: Delivering on the expectation of molecularly driven, quantitative health.Experimental biology and medicine (Maywood, N.J.) · 2018
    Review
  20. A New Approach towards Minimizing the Risk of Misdosing Warfarin Initiation Doses.Computational and mathematical methods in medicine · 2018
    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

14 authors at 5 institutions in 1 country.

W HernandezDepartment of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA.
E R GamazonDepartment of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA.
K Aquino-MichaelsDepartment of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA.
S PatelDepartment of Pharmacy, University of Illinois, Chicago, IL, USA.
T J O'BrienDepartment of Pharmacology and Physiology, The George Washington University, Washington DC, USA.
A F Harralson1] Department of Pharmacology and Physiology, The George Washington University, Washington DC, USA [2] Department of Pharmacogenomics, Bernard J. Dunn School of Pharmacy, Shenandoah University, Ashburn, VA, USA.
R A KittlesDepartment of Medicine, Institute of Human Genetics, University of Illinois, Chicago, IL, USA.
A BarbourDepartment of Medicine, The George Washington University, Washington DC, USA.
M TuckDepartment of Veterans Affairs, Uniformed Services University of the Health Sciences, Washington DC, USA.
S D McIntosh1] Department of Medicine, The George Washington University, Washington DC, USA [2] Department of Veterans Affairs, Uniformed Services University of the Health Sciences, Washington DC, USA.
J N DouglasDepartment of Veterans Affairs, Uniformed Services University of the Health Sciences, Washington DC, USA.
D NicolaeDepartment of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA.
L H CavallariDepartment of Pharmacy, University of Illinois, Chicago, IL, USA.
M A PereraDepartment of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA.
University of Chicago · USUniformed Services University of the Health Sciences · USUniversity of Illinois Chicago · USGeorge Washington University · USShenandoah University · US

Funding

MULTIDISCIPLINARY CARDIAC SCIENCEST32HL007381 · NHLBI · UNIVERSITY OF CHICAGO · PI JEANNE M DECARA, Yoav Gilad · 1985 to 2026
$12.5M
The implementation of a pharmacogenomics-based algorithm for warfarin dosingK23HL089808 · NHLBI · UNIVERSITY OF CHICAGO · PI PERERA, MINOLI A · 2009 to 2013
$601k
Comprehensive studies of novel SNPs affecting warfarin dose in African AmericansR21HL106097 · NHLBI · UNIVERSITY OF CHICAGO · PI PERERA, MINOLI A · 2011 to 2012
$437k
NHLBI NIH HHS K23 HL089808NHLBI NIH HHS K23 HL089808-01A2NHLBI NIH HHS R21 HL106097NHLBI NIH HHS T32 HL007381
6 · The paper itself

Abstract

Using a derivation cohort (N=349), we developed the first warfarin dosing algorithm that includes recently discovered polymorphisms in VKORC1 and CYP2C9 associated with warfarin dose requirement in African Americans (AAs). We tested our novel algorithm in an independent cohort of 129 AAs and compared the dose prediction to the International Warfarin Pharmacogenetics Consortium (IWPC) dosing algorithms. Our algorithm explains more of the phenotypic variation (R(2)=0.27) than the IWPC pharmacogenomics (R(2)=0.15) or clinical (R(2)=0.16) algorithms. Among high-dose patients, our algorithm predicted a higher proportion of patients within 20% of stable warfarin dose (45% vs 29% and 2% in the IWPC pharmacogenomics and clinical algorithms, respectively). In contrast to our novel algorithm, a significant inverse correlation between predicted dose and percent West African ancestry was observed for the IWPC pharmacogenomics algorithm among patients requiring ⩾60 mg per week (β=-2.04, P=0.02).

Indexed as

PharmacogeneticsAnticoagulantsCohort StudiesCytochrome P-450 CYP2C9FemaleHumansMaleVitamin K Epoxide ReductasesWarfarinAnticoagulantsCytochrome P-450 CYP2C9Vitamin K Epoxide ReductasesVKORC1 protein, humanWarfarin

Identifiers

PMID24018621
PMCPMC4016191
OpenAlexW1978828709

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.