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Can DNA-Guided dosing save lives? new study targets african americans

NCT ID NCT03225820

Knowledge-focused Sponsor: University of Chicago Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether giving doctors genetic information about their African American patients can help them prescribe the blood thinner warfarin more safely and effectively. Researchers will track how often doctors use this genetic guidance and whether it leads to better health outcomes. The study involves 1,000 African American adults at multiple hospitals.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 1,000 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2017

Expected to finish

Mar 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Adult patients will comprise the eligible patient population of this study. These patients will be identified through recruitment from the inpatient medicine services at each of the respective institutions, or from relevant clinics or clinical populations that are likely to initiate, or are newly-starting, warfarin therapy.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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Conditions

The condition(s) this trial relates to.

Information Seeking Behavior

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Information seeking behavior

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Northwestern University

    NOT_YET_RECRUITING

    Chicago, Illinois, 60611, United States

  • The University of Illinois at Chicago

    RECRUITING

    Chicago, Illinois, 60607, United States

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Other studies related to the condition(s) this trial covers.