Patients' Assessment of Satisfaction for Stroke Prevention in Atrial Fibrillation

February 11, 2020 updated by: Boehringer Ingelheim

Patients Assessment of Satisfaction for Stroke Prevention in Atrial Fibrillation Impact of Conventional Oral Anticoagulant (OAC) Compared With Novel Oral Anticoagulant (NOAC)

To describe the treatment perception from patients with non-valvular atrial fibrillation (NVAF) receiving Pradaxa® or VKA for stroke prevention by using the self-estimation questionnaire of PACT-Q during a 6-month study period.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1315

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
      • Changhua, Taiwan, 500
        • Chang-Hua Christian Hospital
      • Changhua, Taiwan
        • Show Chwan Memorial Hospital
      • Chia-Yi City, Taiwan, 40705
        • Chia-Yi Christian Hospital
      • Hsinchu, Taiwan
        • HsinChu MacKay Memorial Hospital
      • Hsinchu, Taiwan
        • National Taiwan University Hospital-Hsin-Chu Branch
      • Kaohsiung, Taiwan, 80756
        • Kaohsiung Medical University Chung-Ho Memorial Hospital
      • Kaohsiung, Taiwan, 83301
        • Kaohsiung Chang Gung Memorial Hospital
      • Kaohsiung, Taiwan, 824
        • E-DA Hospital
      • New Taipei City, Taiwan, 220
        • Far Eastern Memorial Hospital
      • New Taipei City, Taiwan, 235
        • Taipei Medical University-Shuang Ho Hospital
      • Taichung, Taiwan, 40447
        • China Medical University Hospital
      • Taichung, Taiwan, 40705
        • Taichung Veterans General Hospital
      • Tainan, Taiwan, 704
        • NCKUH
      • Tainan, Taiwan, 710
        • Chi Mei Medical Center
      • Tainan, Taiwan
        • Tainan Municipal An-Nan Hospital
      • Taipei, Taiwan
        • Taipei Municipal Wanfang Hospital
      • Taipei, Taiwan, 10449
        • Mackay Memorial Hospital
      • Taipei, Taiwan, 114
        • Tri-Service General Hospital
      • Taipei, Taiwan, 10048
        • National Taiwan University Hospital
      • Taipei, Taiwan
        • Shin Kong International HealthCare Center
      • Taipei City, Taiwan, 110
        • Taipei Medical University Hospital
      • Taipei City, Taiwan, 11217
        • Taipe Veterans General Hospital
      • Taoyuan, Taiwan, 330
        • Chang Gung Memorial Hospital(TaoYuan)
      • Yunlin County, Taiwan, 632
        • National Taiwan University Hospital Yun-Lin Branch

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients 20 years of age or older with a diagnosis of non-valvular atrial fibrillation (NVAF).

Description

Inclusion criteria:

Cohort A (patients switched from VKA to Pradaxa)

  • Written informed consent prior to participation.
  • Female or male patients ≥ 20 years of age with a diagnosis of non-valvular atrial fibrillation (NVAF).
  • At least 3 months of continuous VKA treatment for stroke prevention prior to baseline assessment.
  • Patients switched to Pradaxa prior to baseline assessment according to the physician's discretion and the Summary of Product Characteristics (SmPCs)/reimbursement criteria.

OR Cohort B (patients newly initiated Pradaxa or VKA)

  • Written informed consent prior to participation.
  • Female or male patients ≥ 20 years of age, newly diagnosed with NVAF, and no previous treatment for stroke prevention (no use of any OAC within 1 year prior to enrolment).
  • Patients initiated stroke prevention treatment with Pradaxa or VKA according to the physician's discretion and the SmPCs/reimbursement criteria.

Exclusion criteria:

  • Contraindication to the use of Pradaxa® or VKA as described in the SmPCs.
  • Patients receiving Pradaxa® or VKA for any other condition than stroke prevention in NVAF.
  • Current participation in any clinical trial of a drug or device.
  • Current participation in an AF-related registry, e.g. the Gloria AF program.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Cohort A
consented patients with NVAF in Taiwan with a previous VKA therapy, followed by switching to Pradaxa®
Drug: Pradaxa®
Dabigatran etexilate
Other Names:
  • Dabigatran etexilate
Cohort B
patients being newly diagnosed with NVAF and initiated on Pradaxa®
Drug: Pradaxa®
Dabigatran etexilate
Other Names:
  • Dabigatran etexilate

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Mean Perception of Anticoagulant Treatment Questionnaire 2 (PACT-Q2) Scores, for Patients in Cohort A, at Second and Last Assessment Compared to Baseline Assessment
Time Frame: Baseline, Visit 2 (30-45 days after initiation on Pradaxa®), Visit 3 (150-210 days after initiation on Pradaxa®).
The PACT-Q was a self-administered questionnaire which was developed as a means to investigate patients´ satisfaction with anticoagulant treatment and treatment convenience in patients with deep venous thrombosis (DVT), pulmonary embolism (PE) or atrial fibrillation (AF). The PACT-Q2 was composed of three dimensions covering: convenience (11 items), burden of disease and treatment (2 items), and anticoagulant treatment satisfaction (7 items). Items for convenience and for burden of disease and treatment were reversed(reversed score = 6 - item score), added together and rescaled on a 0-100 scale to obtain the convenience dimension score (CDS). Items for anticoagulant treatment satisfaction were summed and rescaled on a 0-100 scale to determine the satisfaction dimension score (SDS). High scores were more favorable. The two dimension scores were presented for Baseline, Visit 2 (second assessment) and Visit 3 (last assessment) as mean and standard deviation (SD).
Baseline, Visit 2 (30-45 days after initiation on Pradaxa®), Visit 3 (150-210 days after initiation on Pradaxa®).
Mean PACT-Q2 Scores, for Patients in Cohort B, at Second and Last Assessment Compared Between Treatment Groups
Time Frame: Visit 2 (30-45 days after initiation on Pradaxa® or VKA) and Visit 3 (150-210 days after initiation on Pradaxa® or VKA).
The PACT-Q2 was composed of three dimensions covering: convenience (11 items), burden of disease and treatment (2 items), and anticoagulant treatment satisfaction (7 items). The PACT-Q2 was to be administered to patients once treatment was ongoing. Items for convenience and for burden of disease and treatment were reversed (reversed score = 6 - item score), added together and rescaled on a 0-100 scale to obtain the convenience dimension score. Items for anticoagulant treatment satisfaction were summed and rescaled on a 0-100 scale to determine the satisfaction dimension score. High scores were more favorable. The two dimension scores were presented for Visit 2 (second assessment) and Visit 3 (last assessment) as mean and standard deviation (SD). Propensity score matching (PSM) method was used to identify matched Pradaxa® and VKA patients. Only the matched patients in each treatment group was summarized and used for comparison.
Visit 2 (30-45 days after initiation on Pradaxa® or VKA) and Visit 3 (150-210 days after initiation on Pradaxa® or VKA).

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Mean PACT-Q2 Scores, for Patients in Cohort A, at Last Assessment Compared to Second Assessment
Time Frame: Visit 2 (30-45 days after initiation on Pradaxa®) and Visit 3 (150-210 days after initiation on Pradaxa®).
The PACT-Q2 was composed of three dimensions covering: convenience (11 items), burden of disease and treatment (2 items), and anticoagulant treatment satisfaction (7 items). The PACT-Q2 was to be administered to patients once treatment was ongoing. Items for convenience and for burden of disease and treatment were reversed (reversed score = 6 - item score), added together and rescaled on a 0-100 scale to obtain the convenience dimension score. Items for anticoagulant treatment satisfaction were summed and rescaled on a 0-100 scale to determine the satisfaction dimension score. High scores were more favorable. The two dimension scores were presented for Visit 2 (second assessment) and Visit 3 (last assessment) as mean and standard deviation (SD).
Visit 2 (30-45 days after initiation on Pradaxa®) and Visit 3 (150-210 days after initiation on Pradaxa®).
Description of PACT-Q1 Items for Patients in Cohort B at Baseline
Time Frame: Baseline
The PACT-Q1 was composed of a single dimension (7 items), covering the expectations of patients regarding their anticoagulant treatment, and was to be administered before treatment initiation. The 7 items were: Q1: How confident are you that your anticoagulant treatment will prevent blood clots? Q2: Do you expect that your anticoagulant treatment will relieve some of the symptoms you experience? Q3: Do you expect that your anticoagulant treatment will cause side effects such as minor bruises or bleeding? Q4: How important is it for you to have an anticoagulant treatment that is easy to take? Q5: How concerned are you about making mistakes when taking your anticoagulant treatment? Q6: How important is it for you to take care of your anticoagulant treatment by yourself? Q7: How concerned are you about how much you pay for your anticoagulant treatment? Responses ranged from 1 (Not at all) to 5 (Extremely/Completely/Very much).
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Boehringer Ingelheim

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 20, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 30, 2018

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 11, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 13, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 13, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 14, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 24, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 11, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 1160-0286

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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