The InterHerz project - a web-based psychological treatment for cardiac patients with depression

ISRCTN ISRCTN45945396
DOI https://doi.org/10.1186/ISRCTN45945396
Secondary identifying numbers N/A
Submission date
08/08/2012
Registration date
16/08/2012
Last edited
12/05/2014
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Patients with heart disease often suffer from depression. Depression is known to have a negative impact on the progression of heart disease. The aim of the study is to investigate whether depressed patients with a heart disease benefit from a web-based treatment called deprexis.

Who can participate?
To participate you must be 18 years old or older, diagnosed with a heart disease and feel depressed.

What does the study involve?
If you decide to participate in the study, you will be randomly assigned to one of two groups. Both groups receive access to the web-based treatment called deprexis but at different time points. One group can start with the web-based treatment immediately after giving their written informed consent, and the other group receives access after a waiting period of 10 weeks. The aim of the study is to compare these two groups. Therefore, all participants will be assessed at three different time points (before receiving access to the treatment, after 10 weeks and after 6 months). The assessments will involve a phone interview and a number of questionnaires.

What are the possible benefits and risks of participating?
The benefits of the study are a reduction of depressive symptoms. Previous research has shown that participants felt better and healthier after the treatment. There are no known negative side effects related to the treatment. However, it is unclear as to what extent depressed participants with a heart disease benefit from deprexis.

Where is the study run from?
University of Bern (Switzerland).

When is study starting and how long is it expected to run for?
The study has started in March 2012 and will continue to recruit participants until April 2014.

Who is funding the study?
University of Bern (Switzerland).

Who is the main contact?
Nadine Messerli-Bürgy, PhD
nadine.messerli@psy.unibe.ch

Study website

Contact information

Dr Nadine Messerli-Bürgy
Scientific

University of Bern
Dept. of Clinical Psychology and Psychotherapy
Gesellschaftsstrasse 49
Bern
3012
Switzerland

Email nadine.messerli@psy.unibe.ch

Study information

Study designRandomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleThe InterHerz project - a web-based psychological treatment for cardiac patients with depression: a randomized controlled trial
Study acronymInterHerz
Study objectivesThe primary aim of the study is to investigate whether a web-based psychological treatment for cardiac patients with depression is effective to reduce depression and perceived stress. It is assumed that participants of the treatment group show lower depression levels and less perceived stress after the treatment compared with the wait-list control group. Further, we expect higher levels of perceived social support, and improved quality of life in the intervention group.

The secondary aim is to investigate a mid-term benefit of the psychological treatment at follow-up after six months. We hypothesize that all participants at six months compared with pre-treatment show reduced depression levels, reduced stress perception, improved perceived social support and improved quality of life.
Ethics approval(s)Faculty of Human Sciences Ethics Committee, University of Bern, 02/03/2011, ref: 2011-02-151
Health condition(s) or problem(s) studiedPatients with cardiovascular diseases and depressive symptoms
InterventionComparing a web-based intervention with a waitlist-control condition

The intervention is a web-based psychological treatment called deprexis evaluated in previous trials. Deprexis was developed to reduce depressive symptoms in patients without any somatic disease. The program consists of 10 content modules. All modules can each be completed in 10 to 60 minutes, depending on the user’s reading speed, interest, motivation, and individual path through the program. The modules cover a variety of therapeutic content that is broadly consistent with a cognitive-behavioral perspective. Participants are guided by a clinical psychologist through their work with this self-help program.
Intervention typeOther
Primary outcome measure1. Depression levels by BDI-II (Hautzinger et al., 2006), and clinical depression by the Patient Health Questionnaire (Gräfe et al., 2004) and by a clinical interview according to the Structured Clinical Interview for DSM Diagnosis SCID (APA, 2000).
Secondary outcome measures1. Stress perception by Perceived Stress Questionnaire PSQ (Fliege et al., 2005)
2. Social support by the ENRICHD Social Support Inventory ESSI (Cordes et al., 2009)
3. Quality of life by the WHOQOL-BREF (Angermayer et al., 2000)
4. Health behavior#
5. Client satisfaction by the Client Satisfaction Questionnaire CSQ (Schmidt & Wittmann, 2002)
Overall study start date01/03/2012
Completion date01/04/2014

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants80 (n=40 participants per group)
Key inclusion criteria1. Adults who suffer from any cardiovascular disorder (including coronary heart disease, chronic heart failure, and arrhythmias)
2. Written informed consent
3. Are 18 years or older
4. Have symptoms of depression (as defined by scoring above a cut-off of 9 on the Beck Depression Inventory (BDI-II)
5. Are of sufficient knowledge of German language
6. Have access to the Internet
Key exclusion criteria1. Any acute health threatening disease (e.g. cancer)
2. Any severe psychiatric illness (e.g. psychosis, dementia)
3. Suicidal thoughts or suicidal plans, or
4. A unstable heart condition
Date of first enrolment01/03/2012
Date of final enrolment01/04/2014

Locations

Countries of recruitment

  • Switzerland

Study participating centre

University of Bern
Bern
3012
Switzerland

Sponsor information

University of Bern (Switzerland)
University/education

Dept. of Clinical Psychology and Psychotherapy
Gesellschaftsstrasse 49
Bern
3012
Switzerland

Email nadine.messerli@psy.unibe.ch
ROR logo "ROR" https://ror.org/02k7v4d05

Funders

Funder type

University/education

University of Bern, Department of Clinical Psychology and Psychotherapy (Switzerland)

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 protocol 28/12/2012 Yes No