Evaluation of a Personalised Digital Intervention (EviBody) for Healthy and Sustained Lifestyle Behaviors and Well-being Among Adults: a Real-world Quasi-experimental Study
NCT ID: NCT05973383
Last Updated: 2025-12-26
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
NOT_YET_RECRUITING
1500 participants
OBSERVATIONAL
2026-01-01
2028-12-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
The main questions it aims to answer are:
I) Is a digital intervention developed to offer personalised digital support for healthy habits effective in improving well-being compared to a control group from the general population after 6 months? II) Is the effectiveness dose-dependent (better effect with higher membership level)? III) Does the digital intervention assist in maintaining healthy eating and physical activity habits, mental health, and well-being across 24 months? IV) Are sociodemographic factors associated with achieving the self-identified goals and improvements in eating and physical activity habits, mental health, and well-being? VI) Do engagement, motivation, self-efficacy, and perceived barriers mediate the associations between sociodemographic characteristics and changes in self-identified goals, eating and physical activity habits, mental health, and well-being over a 24-month period? V) How is the pattern of user engagement across 24 months?
Participants are users of the mobile phone application EviBody. The group will be compared with individuals from the general population to evaluate if the digital intervention is effective in improving well-being, eating and physical activity habits, and mental health.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
The primary study is a quasi-experimental study with a non-randomised control group. A four-armed design will allow for comparison between three levels of intervention (basic, standard and premium) and a control group. The digital intervention (the app EviBody) will be marketed and managed by its owner LongLife Active AB (Limited Company), Sweden. Allocation to intervention arm is by preference (chosen membership level of the app) and takes place at enrolment. Being a research participant includes answering seven questionnaires during two years and allowing researchers to extract data from app analytics. Ethical approval was obtained from the Swedish Ethical Review Authority, Dnr 2023-06246-01 on January 30 2024.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Keywords
Explore important study keywords that can help with search, categorization, and topic discovery.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
OTHER
PROSPECTIVE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Intervention group- Basic
Subjects with behavioral support from the app EviBody
EviBody- Basic
The app EviBody with three core subjects:
1\) a Healthy eating, 2) Physical activity, and 3) Mental balance. The intervention includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars.
Intervention group- Standard
Subjects with behavioral support from the app EviBody + social support
EviBody- Standard
The digital service EviBody with three core subjects:
1\) a Healthy diet, 2) Physical activity, and 3) Mental balance. The service includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars.
Users with the membership Standard are also offered a community with social support.
Intervention group- Premium
Subjects with behavioral support from the app EviBody + social support + individual coaching
EviBody- Premium
The digital service EviBody with three core subjects:
1\) a Healthy diet, 2) Physical activity, and 3) Mental balance. The service includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars.
Users with the membership Premium are also offered a community with social support plus private on-line health consultations. The number of private health consultations is 3 for a 3 months subscription, 4 for a 6 months subscription, and 6 for a 12 months subscription.
Control group
No exposure
No interventions assigned to this group
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
EviBody- Basic
The app EviBody with three core subjects:
1\) a Healthy eating, 2) Physical activity, and 3) Mental balance. The intervention includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars.
EviBody- Standard
The digital service EviBody with three core subjects:
1\) a Healthy diet, 2) Physical activity, and 3) Mental balance. The service includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars.
Users with the membership Standard are also offered a community with social support.
EviBody- Premium
The digital service EviBody with three core subjects:
1\) a Healthy diet, 2) Physical activity, and 3) Mental balance. The service includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars.
Users with the membership Premium are also offered a community with social support plus private on-line health consultations. The number of private health consultations is 3 for a 3 months subscription, 4 for a 6 months subscription, and 6 for a 12 months subscription.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* signing up for the app EviBody using electronic identification
* consent to the research study
* adults ≥18 years
* consent to the research study
Exclusion Criteria
* is currently using a digital product that is explicitly designed to support behaviour change,
* subjects scoring \>70 on well-being will be excluded from the primary analyses,
* subjects who appear as friends, colleagues, or family with anyone in the research or owner group will be excluded.
* is currently using a digital product that is explicitly designed to support behaviour change,
* is found to be a user of EviBody,
* subjects scoring \>70 on well-being will be excluded from the primary analyses,
* subjects who appear as friends, colleagues, or family with anyone in the research or owner group will be excluded.
18 Years
ALL
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Karolinska Institutet
OTHER
Stockholm University
OTHER
The Swedish School of Sport and Health Sciences
OTHER
Linnaeus University
OTHER
Sophiahemmet University
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Jenny Rossen, PhD
Role: PRINCIPAL_INVESTIGATOR
Sophiahemmet University
Central Contacts
Reach out to these primary contacts for questions about participation or study logistics.
References
Explore related publications, articles, or registry entries linked to this study.
Rossen J, Anderbro T, Andermo S, Bergman P, Hagstromer M, Jacobsson M, Johansson UB, Kallings L, Lonn A, Regan C, von Rosen P. Effectiveness and theory-based evaluation of a personalised digital intervention (EviBody(R)) for healthy and sustained lifestyle behaviours and well-being among adults: Study protocol for a real-world quasi-experimental study. PLoS One. 2025 Oct 7;20(10):e0333201. doi: 10.1371/journal.pone.0333201. eCollection 2025.
Related Links
Access external resources that provide additional context or updates about the study.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
CIV-23-07-043416
Identifier Type: -
Identifier Source: org_study_id