Adherence and Coagulation Assays in Dabigatran-treated Patients With Atrial Fibrillation

NCT ID: NCT03280368

Last Updated: 2020-02-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

430 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-06-30

Study Completion Date

2020-01-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

In patients with non-valvular atrial fibrillation treated with dabigatran etexilate, the level of adherence will be measured using a questionnaire, the Danish National Prescription Registry and pillcount and will be related to plasma levels of dabigatran measured by liquid chromatography tandem mass spectrometry (LC-MS/MS) and coagulation assays. The aim of the study is to measure the level of adherence and evaluate the usefulness of different coagulation assays to measure adherence in these patients. Furthermore, the aim is to determine the correlation between the anticoagulant effect of dabigatran using different coagulation assays and plasma levels of dabigatran.

Most studies so far have been performed in vitro with plasma samples spiked with dabigatran. In this study the present knowledge from results of coagulation assays in dabigatran spiked plasma samples will be compared to the results of coagulation assays using blood samples from real-life patients.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Atrial Fibrillation Medication Adherence Blood Coagulation Tests Anticoagulants; Circulating, Hemorrhagic Disorder Drug Effect Drug Use Drug Toxicity Drug Intolerance Blood Clot Blood Coagulation Disorder Laboratory Problem Bleeding Thrombosis

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

A healthy volunteers

Pre-clinical study. Healthy volunteers. Plasma pooled and spiked with dabigatran. Measurement of plasma concentration of dabigatran with liquid chromatography tandem mass-spectrometry and the anticoagulant effect of dabigatran using coagulation assays.

Bloodtest

Intervention Type OTHER

A patients

Pre-clinical study. Patients with atrial fibrillation treated with dabigatran etexilate.

Bloodtest

Intervention Type OTHER

B

Patients with an indication for treatment with dabigatran etexilate for atrial fibrillation and intended for electrocardioversion.

Inclusion before initiation of anticoagulation.

Bloodtest

Intervention Type OTHER

Questionnaires

Intervention Type OTHER

C

Patients with an indication for treatment with dabigatran etexilate for atrial fibrillation. Inclusion before initiation of anticoagulation.

Bloodtest

Intervention Type OTHER

Questionnaires

Intervention Type OTHER

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Bloodtest

Intervention Type OTHER

Questionnaires

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Age 18 years or older
* Non-valvular atrial fibrillation
* Indication for dabigatran etexilate

Exclusion Criteria

* Use of anticoagulant medication within the last month
* Contra-indication to dabigatran etexilate
* Unable or not wishing to give informed consent
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Catharina Ziekenhuis Eindhoven

OTHER

Sponsor Role collaborator

Siemens Corporation, Corporate Technology

INDUSTRY

Sponsor Role collaborator

Diagnostica Stago

INDUSTRY

Sponsor Role collaborator

Boehringer Ingelheim

INDUSTRY

Sponsor Role collaborator

European Society of Cardiology

NETWORK

Sponsor Role collaborator

ANIARA

UNKNOWN

Sponsor Role collaborator

University of Aarhus

OTHER

Sponsor Role collaborator

Erasmus Medical Center

OTHER

Sponsor Role collaborator

Hospitalsenheden Vest

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Willemijn Comuth

Cardiologist, PhD-fellow

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Willemijn Comuth, MD

Role: PRINCIPAL_INVESTIGATOR

Hospitalsenheden Vest

Steen Husted, MD, PhD

Role: STUDY_CHAIR

Hospitalsenheden Vest

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Hospital Unit West

Herning, Mid-Jutland, Denmark

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Denmark

References

Explore related publications, articles, or registry entries linked to this study.

Comuth WJ, de Maat MPM, van de Kerkhof D, Malczynski J, Husted S, Kristensen SD, Munster AB. Adherence to dabigatran etexilate in atrial fibrillation patients intended to undergo electrical cardioversion. Eur Heart J Cardiovasc Pharmacother. 2019 Apr 1;5(2):91-99. doi: 10.1093/ehjcvp/pvy047.

Reference Type RESULT
PMID: 30608563 (View on PubMed)

Comuth WJ, Lauridsen HH, Kristensen SD, Munster AB. Translation, Cultural Adaptation, and Psychometric Properties of the Danish Version of the Anti-Clot Treatment Scale. TH Open. 2018 Sep 13;2(3):e280-e290. doi: 10.1055/s-0038-1670631. eCollection 2018 Jul.

Reference Type RESULT
PMID: 31249952 (View on PubMed)

Comuth WJ, Henriksen LO, van de Kerkhof D, Husted SE, Kristensen SD, de Maat MPM, Munster AB. Comprehensive characteristics of the anticoagulant activity of dabigatran in relation to its plasma concentration. Thromb Res. 2018 Apr;164:32-39. doi: 10.1016/j.thromres.2018.02.141. Epub 2018 Feb 17.

Reference Type RESULT
PMID: 29475179 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

1-16-02-191-14

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.