The effectiveness of adding a cognitive behavioural therapy aimed at changing lifestyle to an optimal diabetes care system

ISRCTN ISRCTN12666286
DOI https://doi.org/10.1186/ISRCTN12666286
Secondary identifying numbers NL68 (NTR92)
Submission date
12/09/2005
Registration date
12/09/2005
Last edited
23/09/2021
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Ms Corina van den Hurk
Scientific

Zernikestraat 29
Eindhoven
5612 HZ
Netherlands

Study information

Study designRandomised, active controlled, factorial, single blinded trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeTreatment
Scientific titleThe effectiveness of adding a cognitive behavioural therapy aimed at changing lifestyle to an optimal diabetes care system
Study objectivesA cognitive behaviour intervention is more effective in achieving behavioural changes and therefore changes in lifestyle and cardiovascular risk profile than usual care in patients with type two diabetes.
Ethics approval(s)Approved by the Medical Ethical Committee of the VU University Medical Center Amsterdam.
Health condition(s) or problem(s) studiedDiabetes Mellitus type II (DM type II)
InterventionIntervention group:
A Cognitive Behavioural Therapy (CBT) which consist of a Motivational Interviewing phase and a Problem Solving Treatment phase. The CBT will be performed by dieticians and diabetes nurses and includes six individual sessions of 30 minutes. This sessions will be performed within a period of 16 weeks.

Usual care group:
Usual care by general practitioner/practice nurse and an annual check-up Diabetes Research Centre as is usual in the optimal care system where the study will be performed.

Both groups will be measured at baseline, at six and at 12 months. Measurements include: demographic patient characteristics, patients' history, diabetes care, clinical patients' characteristics (weight, height, waist circumference, foot inspection, blood pressure, fasting plasma glucose, HbA1c, total cholesterol, High Density Lipoprotein [HDL]-cholesterol) and questionnaires.
Intervention typeOther
Primary outcome measure1. Differences between intervention and usual care groups in changes in diet, physical activity and smoking behaviour according to the ASE-model, a health behaviour model that assumes that behaviour is determined by attitude (A), social influences (S) and self-efficacy (E)
2. Changes in cardiovascular risk score based on the Oxford Risk Engine (algorithm that includes: age at diagnosis, duration of diabetes, sex, ethnicity, smoking status, systolic blood pressure, HbA1c, total cholesterol, HDL-cholesterol). A risk reduction of 5% is clinical relevant.
Secondary outcome measures1. Quality of life
2. Patient satisfaction
3. Changes in medication use, adherence to prescribed medication
4. Proportion of patients reaching treatment targets according to the guidelines of the Dutch College of General practitioners
5. Adherence to the 3-monthly visit to the general practitioner
Overall study start date01/09/2005
Completion date31/12/2006

Eligibility

Participant type(s)Patient
Age groupAdult
SexNot Specified
Target number of participants300
Key inclusion criteria1. Patients with type two diabetes from general practices with the support of a practice nurse
2. Age 40 to 70 years
3. Written informed consent
4. Capable to fill in questionnaires
5. Understanding of Dutch language
6. HbA1c more than 7.0 % and/or Body Mass Index (BMI) more than 27.0 kg/m^2 and/or smoking
Key exclusion criteria1. Unstable endocrine disorders, with the exception of diabetes
2. Malignant disease
3. Treatment with corticosteroids
4. Serious mental impairment, i.e. preventing to understand the study protocol
Date of first enrolment01/09/2005
Date of final enrolment31/12/2006

Locations

Countries of recruitment

  • Netherlands

Study participating centre

Zernikestraat 29
Eindhoven
5612 HZ
Netherlands

Sponsor information

VU University Medical Centre (The Netherlands)
University/education

EMGO-Institute
Van der Boechorststraat 7
Amsterdam
1081 BT
Netherlands

Phone +31 (0)20 444 8180
Email emgo@vumc.nl
Website http://www.emgo.nl/
ROR logo "ROR" https://ror.org/00q6h8f30

Funders

Funder type

Research council

EMGO Institute (The Netherlands) - internal funding

No information available

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 Study protocol 08/05/2007 Yes No

Editorial Notes

23/09/2021: Proactive update review. No publications found. Search options exhausted.