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Atrial FibrillationARISTANCT03719144

Understanding and Improving Anticoagulation Dosing for Patients With Atrial Fibrillation

An observational study of Atrial Fibrillation, run by Duke University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will survey atrial fibrillation patients to better understand patient perspective of DOAC treatment, and providers to assess knowledge, practice patterns, and beliefs surrounding anticoagulation for AF. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Atrial Fibrillation
How many people
581 participants
Where
1 siteUnited States
Study dates
8 Apr 2019to 24 Mar 2020
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: This study is targeting AF patients and providers.

Who may be able to join

  • Retrospective Analysis:
  • NVAF documented in at least 2 claims between January 2015 and December 2016
  • CHA2DS2-VASc scores of 2 or higher
  • Prospective Analysis:
  • Patient Analysis: All patients in ResearchMatch with diagnosed AF.
  • Provider Analysis: All providers who contributed at least 25 AF patients treated with DOACs to the Symphony claims dataset. All provider specialties (i.e. cardiology, primary care, and other), as well as provider types (i.e. physician, physician extender, and nurse practitioner) will be included.

Who cannot join

  • Retrospective Analysis:
  • Patients with bioprosthetic or mechanical valves in the mitral position.
  • Patients with any of the following missing data: age, sex, body weight, serum creatinine, and any data required for DOAC dosing.
  • Patients with mitral stenosis.
  • Patients without 12-month follow-up data.
  • Prospective Analysis:
  • Provider Analysis: All providers who contributed less than 25 AF patients treated with DOACs to the Symphony claims dataset.
  • Patient Analysis: Patients unwilling or unable to consent.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Duke University

    Durham, North Carolina, 27701

Other trials in United States

About this study

Official title: Optimizing Anticoagulation Dosing and Adherence for Patients With Non-valvular Atrial Fibrillation

This study will survey atrial fibrillation patients to better understand patient perspective of DOAC treatment, and providers to assess knowledge, practice patterns, and beliefs surrounding anticoagulation for AF.

Medical subject headings
Atrial Fibrillation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT03719144
Study groupRoleWhat they receive
PatientsPatients registered on ResearchMatch.org with Atrial Fibrillation as a medical condition; or who participate in afib-related social media platforms and confirm a diagnosis of afib, will be invited to participate in this study. Patients will be consented using an online consent form and then will be asked to complete 1 survey that contains scenarios and ranking questions.
ProvidersProviders who have contributed at least 25 Atrial Fibrillation patients to the Symphony pharmacy claims dataset will be contacted to participate. Interested providers will be consented using an online consent form and then will be asked to complete 1 survey that contains scenarios and ranking questions.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The co-primary outcome for the retrospective analysis is rate of 12-month medication discontinuation.

    The pharmacy claims dataset will be used to obtain records of patient prescription fills, and the characteristics of those patients filling the prescriptions. The index event for each patient will be defined by when the second NVAF claim was filed. The dose will be initially determined from the index prescription. Of those patients prescribed a DOAC, the 12-month DOAC discontinuation rates will be examined. DOAC discontinuation will be defined as a gap in fill ≥30 days following the run-out date of the last observed claim for the index therapy. Twelve-month DOAC discontinuation will be stratified according to whether the patient received a dose reduction following labeled criteria, a dose reduction inconsistent with labeled criteria, or were prescribed the full dose, per labeled criteria.

    Measured: up to 12 months

  2. The co-primary outcome for the retrospective analysis is 12-month adherence rates.

    The pharmacy claims dataset will be used to obtain records of patient prescription fills, and the characteristics of those patients filling the prescriptions. The index event for each patient will be defined by when the second NVAF claim was filed. The dose will be initially determined from the index prescription. Of those patients prescribed a DOAC, medication adherence rates will be examined. DOAC adherence, defined as the proportion of days covered ≥80%, is calculated by the number of days any anticoagulant is available divided by the number of days in the follow-up period. Twelve-month adherence rates will be stratified according to whether the patient received a dose reduction following labeled criteria, a dose reduction inconsistent with labeled criteria, or were prescribed the full dose, per labeled criteria.

    Measured: up to 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Oct 2018
  2. Study start8 Apr 2019
  3. Primary completion24 Mar 2020
  4. Study completion24 Mar 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Cross-sectional
Enrolment
581 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03719144
Sponsor's protocol ID
Pro00088597
Acronym
ARISTA
Status last verified
Aug 2023
First submitted
23 Oct 2018
Last updated
5 Sep 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Atrial Fibrillation, run by Duke University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The co-primary outcome for the retrospective analysis is rate of 12-month medication discontinuation. (time frame: up to 12 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Sep 2023.

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