ISRCTN ISRCTN93952605
DOI https://doi.org/10.1186/ISRCTN93952605
Secondary identifying numbers N/A
Submission date
24/09/2008
Registration date
18/12/2008
Last edited
17/09/2013
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Not provided at time of registration

Contact information

Prof Gregory Y H Lip
Scientific

University Department of Medicine
City Hospital
Dudley Road
Birmingham
B18 7QH
United Kingdom

Study information

Study designMulticentre randomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleTRial of an Educational intervention on patients' knowledge of Atrial fibrillation and anticoagulant therapy, international normalised ratio (INR) control, and outcome of Treatment with warfarin
Study acronymTREAT
Study hypothesisThe recent National Institute for Health and Clinical Excellence (NICE) guidelines recommend oral anticoagulation among non-valvular atrial fibrillation (NVAF) patients at moderate to high risk of stroke. Among those eligible NVAF patients who agree to take warfarin, the following aims will be explored:
1. The primary endpoint is to examine the effects of an intensive educational intervention on patients’ international normalised ratio (INR) control within the therapeutic range (INR 2.0 to 3.0)
2. The secondary endpoints will determine the effects of an intensive educational intervention on patients’ knowledge of, and perceptions of, AF and their beliefs about anticoagulant therapy
3. In addition, the relationship between INR control and the incidence of major and minor bleeding, stroke and thromboembolic events compared to patients receiving usual care will be explored
4. Further, the reasons for persistence with anticoagulant therapy and the reasons for cessation of such treatment will be elicited
5. Finally, a health-care utilisation assessment will be undertaken to determine the costs of the intensive educational intervention compared to usual care
Ethics approval(s)Black Country Research Ethics Committee, provisional approval as of 1st September 2008 (ref: 08/H1202/133).
ConditionAtrial fibrillation
InterventionUsual care:
Patients randomised to usual care will be informed about their condition and the need for anticoagulant therapy only. All patients will also receive the standard Yellow book to identify that they are taking OAC therapy. This book contains some basic information pertaining to OAC therapy.

Intensive education:
Those in the intensive educational intervention will attend a group session (between 6 - 8 patients for approximately 1 hour) where they will be shown a slide show of information about the need for oral anticoagulants, the risks and benefits associated with OAC therapy, potential interactions with food, drugs, and alcohol, and the importance of monitoring, and control of their INR. This presentation will be given by Professor Lip or his AF research registrar and will be interactive, where the patients are encouraged to ask questions. In addition, patients will also be given an educational booklet.

All patients will be followed up for 12 months.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Warfarin
Primary outcome measureThe proportion of time spent in the therapeutic INR range, 2.0 to 3.0; all INRs recorded by the anticoagulation clinic within the first 12 months will be recorded (this will vary for each patient).
Secondary outcome measures1. Patients' knowledge and perceptions of AF, questionnaire administered at baseline (time 0), 1, 2, 6, and 12 months
2. Patients' beliefs about their medication, before and after the intervention, questionnaire administered at baseline (time 0), 1, 2, 6, and 12 months
3. The relationship between INR control and patients' experiences of warfarin treatment, the persistence of warfarin therapy, and the incidence of minor and major bleeding, stroke, and thromboembolic events (performed using ancillary analyses, given that the trial is not powered to detect these differences). The number of strokes, bleeding and thromboembolic events will be determined from the computerised clinical information system at the hospital, assessed at 1, 2, 6 and 12 months.
4. A health-economic analysis of the resource utilisation in providing an intensive educational intervention, undertaken at the end of the trial
Overall study start date01/01/2009
Overall study end date31/01/2011

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants200
Participant inclusion criteria1. Atrial fibrillation patients newly referred for, and accepting of, anticoagulant therapy
2. Aged 18 years or older, either sex
Participant exclusion criteria1. Aged less than 18 years old
2. Have any contraindication to warfarin or have previously received warfarin
3. Have valvular heart disease
4. Are cognitively impaired
5. Have any disease likely to cause their death within 12 months
Recruitment start date01/01/2009
Recruitment end date31/01/2011

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

University Department of Medicine
Birmingham
B18 7QH
United Kingdom

Sponsor information

Bayer Plc (UK)
Industry

c/o Warren Cowell
Bayer Healthcare Pharmaceuticals
Hunton House, Highbridge Industrial Estate
Oxford Road
Uxbridge
UB8 1HU
United Kingdom

Website http://www.bayer.co.uk
ROR logo "ROR" https://ror.org/05emrqw14

Funders

Funder type

Industry

Bayer Healthcare (UK)
Private sector organisation / For-profit companies (industry)
Alternative name(s)
BHC
Location
Germany

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article protocol 20/05/2010 Yes No
Results article results 09/09/2013 Yes No
Springer Nature