NCT06943586 · University of Alabama at Birmingham
Pharmacogenomics in Stroke: Feasibility of CYP2C19 Testing
(CYP-FAST)
What this study is about
The purpose of this research study is to explore whether genetic testing can offer a personalized and timely approach to assist physicians in making more informed medication decisions for stroke or high-risk transient ischemic attack (TIA) patients during their hospital stay.
View original scientific description
The purpose of this research study is to explore whether genetic testing can offer a personalized and timely approach to assist physicians in making more informed medication decisions for stroke or high-risk transient ischemic attack (TIA) patients during their hospital stay.
Interventions
GENETIC
CYP2C19 Genotype Guided DAPT (dual antiplatelet therapy)
CYP2C19 is a gene that encodes an enzyme responsible for metabolizing several medications, including the antiplatelet drugs.
Primary outcome measures
Stroke participant feasibility of return of CYP2C19 genetic testing results
Time frame: 6 hours from buccal swab collection
This outcome is to determine the feasibility of receiving CYP2C19 genetic testing results (strata-normal vs. loss-of-function allele) on minor ischemic stroke and high risk TIA inpatients within a 6-hour window to determine drug metabolization for antiplatelet effect to guide standard of care treatment. Inpatients that have been admitted to the hospital, within 66 hours of last known well time, will have buccal swabs collected during hospitalization for the CYP2C19 genetic testing. Results must be received within 6 hours to effectively randomize subjects.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Patients 18-89 years of age
- admitted to University of Alabama at Birmingham (UAB) main hospital with symptoms or signs of minor ischemic stroke, or high risk TIA
- eligible to receive dual antiplatelet load (presented to the hospital within 66 hours of last known well)
Exclusion criteria
- diagnosis of atrial fibrillation, valvular heart disease, index stroke due to known hypercoagulability (subset of other determined etiology) or large vessel disease (culprit vessel stenosis of ≥50%)
- prescribed anticoagulation prior to stroke
- treated with intravenous thrombolysis
- treated with mechanical thrombectomy
- missing NIH Stroke Scale score
Where
- Birmingham, Alabama
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Apr 23, 2026 · Source of record for eligibility and locations