ArticleClinical pharmacology and therapeutics2026
CYP2C19 Genotyping to Guide Clopidogrel Prescribing for Neurovascular Indications: A Survey of Institutional Approaches.
Article in Clinical pharmacology and therapeutics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Dual antiplatelet therapy (DAPT) with aspirin and clopidogrel is commonly used for secondary prevention following acute ischemic stroke (AIS) and neurointerventional procedures. However, the efficacy of clopidogrel is reduced in carriers of CYP2C19 no-function alleles. While CYP2C19-guided DAPT is well-established for some cardiovascular indications, its use in neurovascular settings has remained limited until recently. This study characterized current implementation strategies for CYP2C19-guided DAPT for neurovascular indications across institutions in the Pharmacogenomics Global Research Network Implementation Working Group. A REDCap survey was distributed to 54 institutions targeting those currently utilizing or planning to implement CYP2C19 testing to guide clopidogrel use for neurovascular indications. The survey collected data on implementation status, workflows, testing logistics, clinical decision support (CDS), and guideline concordance. Fifteen institutions met inclusion criteria; 80% were in the United States and 87% were academic centers. CYP2C19 testing was used for neurovascular indications at 12 sites, most commonly for AIS, intracranial aneurysm repair, and intracranial stenting. Implementation was often built on infrastructure previously established for cardiovascular indications. Most sites used multigene panels, offered testing in both inpatient and outpatient settings, and returned results within 7 days. Eighty percent of sites provided CDS to support application of results. All sites recommended an alternative P2Y12 inhibitor (e.g., ticagrelor) for poor metabolizers, and most did for intermediate metabolizers. CYP2C19-guided antiplatelet therapy for neurovascular indications is expanding, with many implementations leveraging preexisting infrastructure from cardiovascular settings. Broader adoption and outcome-focused research are needed to optimize the clinical utility of genotype-guided DAPT in neurovascular care.
Identifiers
What Socratic holds
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 Socratic graph.