Using pharmacogenomic information to improve warfarin dosing in African American patients

Implementation of Point-of-Care Pharmacogenomic Decision Support Accounting for Minority Disparities

Observational University of Chicago · NCT03225820

This study is testing if using genetic information can help doctors give the right dose of warfarin to African American patients in the hospital to improve their health outcomes.

Quick facts

Study typeObservational
Enrollment1000 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Chicago Academic / other
Locations2 sites (Chicago, Illinois and 1 other locations)
Trial IDNCT03225820 on ClinicalTrials.gov

What this trial studies

This study explores the feasibility of delivering pharmacogenomic results at the point-of-care in inpatient settings, focusing on African American patients who may face health disparities. It aims to determine if providing pharmacogenomic-based dosing guidance for warfarin can enhance clinical outcomes. Patients will be consented and genotyped for actionable variants predicting drug response or toxicity risk during their hospital stay. The study will involve multiple institutions, including The University of Chicago, University of Illinois at Chicago, and Northwestern University.

Who should consider this trial

Good fit: Ideal candidates for this study are African American adults aged 18 and older who are likely to initiate warfarin therapy.

Not a fit: Patients with liver or kidney transplantation considerations, active leukemia, or those unable to provide informed consent may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to improved warfarin dosing and better health outcomes for African American patients.

How similar studies have performed: Other studies have shown promise in using pharmacogenomic information to improve medication management, but this specific approach focusing on minority disparities is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients must be at least 18 years of age.
* Patients must self-identify as African American

Exclusion Criteria:

* Patients who have undergone, or are being actively considered for, liver or kidney transplantation.
* Patients with known active or prior leukemia.
* Inability to understand and give informed consent to participate.
* For patients being recruited to the warfarin sub-study, those with a glomerular filtration rate or creatinine clearance \<30 mL/min34.

Where this trial is running

Chicago, Illinois and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Information Seeking Behaviorpharmacogenomic information
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.