Evidence map›Paper›PMID 26980150›Full record

ArticleInternational journal of clinical pharmacy2016

Comparison of a rapid point-of-care and two laboratory-based CYP2C19*2 genotyping assays for personalisation of antiplatelet therapy.

Francesca Wirth, Graziella Zahra, Robert G Xuereb, Christopher Barbara, Albert Fenech, Lilian M Azzopardi

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in International journal of clinical pharmacy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
1.6field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Circulation · 2024
    Review
  5. Analytical validation of GMEX rapid point-of-careStroke and vascular neurology · 2021
    Article
  6. Pharmacogenomics · 2020
    Review
  7. Article
  8. Article
  9. Article
  10. 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

6 authors at 2 institutions in 1 country.

Francesca WirthDepartment of Pharmacy, Faculty of Medicine and Surgery, University of Malta, Msida, Malta. francesca.wirth@um.edu.mt.ORCID http://orcid.org/0000-0002-3225-2363
Graziella ZahraMolecular Diagnostics Unit, Department of Pathology, Mater Dei Hospital, Msida, Malta.
Robert G XuerebCardiac Catheterisation Suite, Department of Cardiology, Mater Dei Hospital, Msida, Malta.
Christopher BarbaraMolecular Diagnostics Unit, Department of Pathology, Mater Dei Hospital, Msida, Malta.
Albert FenechCardiac Catheterisation Suite, Department of Cardiology, Mater Dei Hospital, Msida, Malta.
Lilian M AzzopardiDepartment of Pharmacy, Faculty of Medicine and Surgery, University of Malta, Msida, Malta.
Mater Dei Hospital · MTUniversity of Malta · MT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA quick CYP2C19*2 genotyping assay can be useful in personalised antiplatelet-therapy.

objectiveTo apply a rapid point-of-care (POC) CYP2C19*2 genotyping assay for personalisation of antiplatelet therapy in patients undergoing percutaneous coronary intervention (PCI) and to compare this POC assay to two laboratory-based CYP2C19*2 genotyping assays.

settingCardiac Catheterisation Suite and Molecular Diagnostics Unit in a general hospital.

methodsA buccal sample was collected for POC CYP2C19*2 genotyping with the Spartan™ RX system (Spartan Bioscience). A whole blood sample was collected from the same patients for laboratory-based CYP2C19*2 genotyping with a TaqMan® allelic discrimination assay (Life Technologies) using real-time quantitative PCR and with the GenID® reverse dot-blot hybridisation assay (Autoimmun Diagnostika GmbH). Each patient was genotyped as a non-carrier of CYP2C19*2 (*1/*1), a carrier of one CYP2C19*2 allele (*1/*2), or a carrier of two CYP2C19*2 alleles (*2/*2). Genotyping, interpretation and communication of genotype results (*1/*2, *2/*2) to the consultant cardiologist was undertaken by a clinical pharmacist researcher. Quantitative and qualitative comparison between the three assays was carried out.

main outcome measuresApplication of a rapid POC CYP2C19*2 genotyping assay for antiplatelet therapy individualisation; comparison of the POC CYP2C19*2 genotyping assay to two laboratory-based assays.

resultsThe total sample consisted of 34 Caucasian patients. With the POC assay, 21 patients were genotyped as non-carriers of CYP2C19*2, 12 patients as carriers of one CYP2C19*2 allele and one patient as a carrier of two CYP2C19*2 alleles. With both laboratory-based assays, the same 21 patients were genotyped as non-carriers of CYP2C19*2, however 13 patients were genotyped as carriers of one CYP2C19*2 allele and no patients were genotyped as carriers of two CYP2C19*2 alleles. Agreement in genotype results was 97 % (κ = 0.939) between the POC assay and both laboratory-based assays and 100 % (κ = 1.000) between the two laboratory-based assays.

conclusionCompared to both laboratory-based genotyping assays, the POC assay is accurate and reliable, provides rapid results, can process single samples, is portable and more operator-friendly, however the tests are more expensive.

Indexed as

GenotypeAgedClinical Laboratory TechniquesCohort StudiesCytochrome P-450 CYP2C19FemaleHumansMaleMiddle AgedPlatelet Aggregation InhibitorsPoint-of-Care SystemsPrecision MedicineProspective StudiesTime FactorsCYP2C19 protein, humanCytochrome P-450 CYP2C19Platelet Aggregation InhibitorsAntiplatelet therapyCYP2C19*2 genotypingMaltaPercutaneous coronary interventionPersonalised medicinePoint-of-care

Identifiers

PMID26980150
OpenAlexW2464406032

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.