Lifestyle Intervention for Symptoms of Depression wIth App Support in General Practice
LIDIAS
A Personalized Lifestyle Intervention for Depression Symptomatology in General Practice - a Cluster Randomized Multicenter Trial
2 other identifiers
interventional
216
1 country
3
Brief Summary
The goal of this clinical trial is to find out whether a smartphone app can help reduce symptoms of depression by supporting healthy lifestyle changes and encouraging self-monitoring in adults who visit their general practitioner with symptoms of depression. The main questions this study aims to answer are: Does a personalized lifestyle intervention delivered through the app, in addition to regular care, reduce depression symptoms more effectively than regular care alone? Is this approach more cost-effective than regular care alone? Researchers will compare patients who use the app alongside their regular care to patients who receive regular care without the app, to see whether the app leads to better outcomes. Participants who use the app will: Complete a lifestyle questionnaire focused on six themes: mental wellbeing, use of harmful substances, social relationships, healthy eating, sleep, and physical activity. Set personal goals based on their results and receive tailored lifestyle advice. Track their depression symptoms regularly within the app to support ongoing care. Have follow-up conversations with their general practitioner or mental health nurse to discuss their progress. Fill out questionnaires about their symptoms and experiences during the study.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jun 2025
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 22, 2025
CompletedFirst Posted
Study publicly available on registry
June 15, 2025
CompletedStudy Start
First participant enrolled
June 17, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 1, 2027
December 22, 2025
June 1, 2025
1.4 years
May 22, 2025
December 19, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Cost-effectiveness of the Personalized Lifestyle Intervention at 6 months after baseline
To assess the PLI's cost-effectiveness from a societal perspective, the Treatment Inventory of Costs in Patients with psychiatric disorders (TIC-P) will be used. The main outcome in the cost-effectiveness analysis is Quality-Adjusted Life-Years (QALYs) based on the EQ-5D-5L, measuring general quality of life. Also, additional treatments are measured within the TIC-P, for secondary analysis on additional care.
Baseline to 6 months
Change in quality of life using the EQ-5D-5L
Change in quality of life will be assessed using the EQ-5D-5L. This tool consists of 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, with each rated on a 5-level scale. The EQ-5D-5L also includes a visual analog scale (VAS) to assess overall health. Higher scores indicate better quality of life, while lower scores reflect greater limitations or discomfort. This measure helps track changes in health status and overall quality of life over time.
Baseline to 6 months
Change from baseline in the mean depression severity score measured by the PHQ-9 at 6 months after baseline
To evaluate the effectiveness of the PLI on depression symptomatology, general symptoms of depression will be assessed using the Patient Health Questionnaire-9 (PHQ-9). The PHQ-9 is a 9-item self-reported questionnaire assessing the severity of depression symptomatology. The PHQ-9 is brief, easy to complete, and takes only a few minutes to fill out. The total score ranges from 0 to 27. Scores are interpreted as follows: 0-4 indicates minimal or no depression, 5-9 mild depression, 10-14 moderate depression, 15-19 moderately severe depression, and 20-27 severe depression. Higher scores suggest more severe symptoms, and professional treatment is recommended as the score increases.
Baseline to 6 months.
Secondary Outcomes (12)
Change in the severity of anxiety symptoms: GAD-7 (Generalized Anxiety Disorder-7)
Baseline to 3 , 6 and 12 months
Changes in quality of life according to the Recovering Quality of Life (ReQol)
Baseline to 3, 6 and 12 months
Change in use of antidepressants
Baseline to 3 and 6 months
Change in use of anxiolytics
Baseline to 3 and 6 months
Change in lifestyle measures at month 6
Baseline to 6 months
- +7 more secondary outcomes
Other Outcomes (7)
Socio-demographics at baseline
At baseline
Threatening Experiences: LTE
At enrollment and at 6 months
History of depression and previous psychological treatment
At baseline
- +4 more other outcomes
Study Arms (2)
Care As Usual (CAU)
NO INTERVENTIONThe control group, receiving care as usual, will use a version of the Patient Journey App that only displays study questionnaires and sends reminders to complete them at the start of the study, and again at 3 and 6 months. Every 6 weeks, depression symptoms are measured. Patients can view their depression questionnaire results (PHQ-9; Patient Health Questionnaire-9) in a graph within the app. General practitioners and mental health nurses will not have access to the app. At 12 months, all participants will be invited to complete an optional final questionnaire about (cost-)effectiveness to assess the long-term impact of the intervention.
Personalized Lifestyle Intervention
EXPERIMENTALThe intervention group will receive the personalized lifestyle intervention (PLI) in addition to care as usual. The PLI consists of the combined use of the Patient Journey App and regular treatment provided by the general practitioner or mental health nurse in general practice. Patients, general practitioners and mental health nurses will have access to the app to monitor patient progress and outcomes (symptoms of depression and anxiety). Study questionnaires will be completed at the start of the study (baseline), and again at 3, 6, and optionally 12 months after enrollment. Every 6 weeks, depression symptoms are measured.
Interventions
The personalized lifestyle intervention (PLI) consists of the combined use of the Patient Journey App (PJA) alongside care provided by the general practitioner or mental health nurse. The Patient Journey App integrates four digital health tools within a single smartphone application: 1. A brief lifestyle questionnaire covering six key areas: mental wellbeing, minimizing harmful substance use, social relationships, healthy eating, sleep, and physical activity. 2. A personalized summary of the questionnaire results, which supports the formulation of two personal lifestyle goals. 3. Tailored information and advice about lifestyle, including suggested interventions, based on the patient's personal goals. 4. Monitoring of depression symptoms over time to support measurement-based care. General practitioners and mental health nurses will have access to the app to monitor patient progress and outcomes.
Eligibility Criteria
You may qualify if:
- Currently experiencing an episode of symptoms of depression and receiving treatment for this episode from their GP or GP-MHW for less than six months
- Have a smartphone
- Be proficient in Dutch
You may not qualify if:
- Severe mental illness (such as psychosis or bipolar disorder)
- Severe alcohol or drug addiction requiring specialized secondary care
- High suicide risk
- moderate to severe cognitive impairment (as determined by the GP)
- Patients who visit their GP for depressive symptoms but with a PHQ-9 of \<5 at baseline are allowed to use the PLI, but will not be included in the primary analysis.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Ixta Noacollaborator
- Radboud University Medical Centerlead
- University Medical Center Groningencollaborator
- Hogeschool van Arnhem en Nijmegen (HAN)collaborator
- Pro Persona Mental Health Care Foundationcollaborator
- Amsterdam UMCcollaborator
- Interactive Studioscollaborator
Study Sites (3)
Radboudumc
Nijmegen, Gelderland, 6525GA, Netherlands
Amsterdam UMC
Amsterdam, North Holland, 1105 AZ, Netherlands
UMC Groningen
Groningen, Provincie Groningen, 9713 GZ, Netherlands
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 22, 2025
First Posted
June 15, 2025
Study Start
June 17, 2025
Primary Completion (Estimated)
November 1, 2026
Study Completion (Estimated)
February 1, 2027
Last Updated
December 22, 2025
Record last verified: 2025-06