STAR-C Digital Coaching Intervention
STAR-C
STAR-C (Sustainable Behaviour Change for Health Supported by Person-Tailored, Adaptive, Risk-aware Digital Coaching in a Social Context) Digital Coaching Intervention
1 other identifier
interventional
1,000
1 country
1
Brief Summary
Objectives: The overall objective is to evaluate the effectiveness of the STAR-C digital coaching intervention for health-related lifestyle behavioural change. Study design: This intervention is designed as a two-arm individual pragmatic one-sided crossover randomised controlled trial, with participants receiving immediate access to the digital coaching intervention (Arm 1) and no digital coaching intervention (Arm 2, delayed access three months). Setting: The intervention is integrated into the Västerbotten Intervention Programme (VIP) in Västerbotten Region. In total, 1000 participants will be recruited from all VIP-participating primary healthcare centres in Västerbotten, proportional to the size of the VIP participants in each centre. All participants will receive regular VIP intervention with the VIP nurse before recruitment into the STAR-C intervention study. The intervention is planned to run for six months in total, with in-person recruitment at the baseline and follow-up at one, three, and six months. Individuals who are bedridden, terminally ill or have severe communication problems and those who receive behavioural change treatment at the Behavioural Medicine Clinic will be excluded. Measures: The primary outcome of the intervention is change in the readiness for behaviour change at three months. The secondary outcomes include: (i) actual changes in the behaviours, including use of tobacco cessation clinics, higher smoking and snus cessation rate, reduction in alcohol consumption, adoption of healthy food habits, increased level of physical activity and reduction of sedentary behaviours, self-rated health and well-being, comparing baseline and follow-up data; (ii) patterns and usage of the digital tool during the intervention period (for the intervention group). These outcomes will be measured quantitatively using questionnaires. In addition, interviews and group interviews will be conducted to explore the barriers and facilitators for the adoption and maintenance of the STAR-C digital coaching intervention for VIP nurses and the adult population.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Sep 2025
1 active site
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
April 5, 2023
CompletedFirst Posted
Study publicly available on registry
May 18, 2023
CompletedStudy Start
First participant enrolled
September 15, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2026
August 20, 2025
December 1, 2024
1.2 years
April 5, 2023
August 14, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Self-reported readiness for behavioural change
The proportion of participants in different stages of behavioural change of (a) pre-contemplation; (b) contemplation; (c) preparation; (d) action; and (e) maintenance for different behaviours
3 months
Secondary Outcomes (6)
Change in tobacco habits
3 months
Change in alcohol consumption
3 months
Change in healthy food habits
3 months
Change in physical activity and sedentary behaviour
3 months
Change in health-related quality of life
3 months
- +1 more secondary outcomes
Other Outcomes (1)
Costs
3 months
Study Arms (2)
Intervention
EXPERIMENTALImmediate access to the digital coaching intervention
Control
NO INTERVENTIONDelayed access to the digital coaching intervention, three months
Interventions
Eligibility Criteria
You may qualify if:
- Participant in the Västerbotten Intervention Programme (VIP) who have received the VIP intervention.
- Has a smartphone.
You may not qualify if:
- Individuals who are bedridden, terminally ill, have severe vision/hearing problems, or with other hindrances to fulfilling the study protocol.
- Individuals who will be referred to the Behavioural medicine clinic (Beteendemedicin) for behavioural change treatment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Umeå Universitylead
- Region Västerbottencollaborator
Study Sites (1)
Primary health care, Region Västerbotten
Umeå, Västerbotten County, Sweden
Related Publications (1)
Ng N, Eriksson M, Guerrero E, Gustafsson C, Kinsman J, Lindberg J, Lindgren H, Lindvall K, Lundgren AS, Lonnberg G, Sahlen KG, Santosa A, Richter Sundberg L, Weinehall L, Wennberg P. Sustainable Behavior Change for Health Supported by Person-Tailored, Adaptive, Risk-Aware Digital Coaching in a Social Context: Study Protocol for the STAR-C Research Programme. Front Public Health. 2021 Mar 1;9:593453. doi: 10.3389/fpubh.2021.593453. eCollection 2021.
PMID: 33732674BACKGROUND
Study Officials
- PRINCIPAL INVESTIGATOR
Patrik Wennberg, MD, PhD
Umeå University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Masking Details
- Upon their consent to participate in the study, baseline measurement will be conducted for each participant before their random allocation to different treatment arms. The research group will be blinded to the treatment assignment. The treatment assignment key will be revealed only after the intervention has been concluded and the analysis has been conducted
- Purpose
- PREVENTION
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 5, 2023
First Posted
May 18, 2023
Study Start
September 15, 2025
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
December 1, 2026
Last Updated
August 20, 2025
Record last verified: 2024-12