Are seniors getting the right dose? new study checks blood thinner use in atrial fibrillation
NCT ID NCT07242326
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study observes 1,000 adults aged 65 and older with atrial fibrillation who take blood thinners. Researchers will check if the doses match official guidelines and how consistently patients take their medication. The goal is to identify unsafe practices and refer patients to heart specialists when needed.
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
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About 1,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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A research network
The lead sponsor is a research network or cooperative group.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Adults aged ≥65 years with established atrial fibrillation (any type) receiving care in family health centers across Ordu, Türkiye. The prospective cohort enrolls consecutive eligible attendees during Dec 1, 2025-May 31, 2026 at a single routine visit; the retrospective cohort includes patients with AF who received an oral anticoagulant during Dec 15, 2025-May 31, 2026 identified from primary care records. Exclusions: mechanical prosthetic heart valve or moderate-severe rheumatic mitral stenosis, and cases lacking the minimal data needed for dose/adherence classification. No investigational treatment is delivered; care is routine with same-day tertiary referral when unsafe dosing, high-risk drug interactions, or very low renal function are detected.
- Ages
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65 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Age ≥65 years. * Established atrial fibrillation (any type) documented in the medical record. * Presenting to a family health center (primary care) in Ordu province during the prospective window or having records within the retrospective window. * On an oral anticoagulant (DOAC) at any time in the 12-month window. Exclusion Criteria: * Mechanical prosthetic heart valve or moderate-to-severe rheumatic mitral stenosis * Participation in an interventional drug study affecting anticoagulation * Lack of minimal data elements required for dose classification (age, sex, body weight, serum creatinine with date, current OAC and regimen) * Investigator judgment that reliable data cannot be obtained from records
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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
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Ordu University Faculty of Medicine, Department of Cardiology
Ordu, Ordu, 52200, Turkey (Türkiye)
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