EviBody: a personalised digital program to support healthy habits and well-being

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a real-world, quasi-experimental observational project comparing three membership levels of the EviBody app (basic, standard, premium) with a non-randomised control group from the general population. Adults choose their membership level at enrolment and all participants complete seven questionnaires over 24 months while researchers extract anonymised app analytics. Primary analyses focus on changes in well‑being and lifestyle behaviors at six months and maintenance up to 24 months, with subgroup analyses by sociodemographic factors and dose–response by membership level. The protocol also examines whether engagement, motivation, self‑efficacy, and perceived barriers mediate observed effects.

Why it matters

Who can join: the full rules

Inclusion Criteria (intervention arms):

* adults ≥18 years
* signing up for the app EviBody using electronic identification
* consent to the research study

Inclusion Criteria (controls):

* adults ≥18 years
* consent to the research study

Exclusion Criteria (intervention arms):

* individuals who are discharged from the app due to refracting the terms of the service,
* 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.

Exclusion Criteria (controls):

* 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.

Where it's running

• Sophiahemmet University
  Stockholm, Sweden Recruiting

Study contacts

• Principal investigator: Jenny Rossen, PhD — Sophiahemmet University
• Study coordinator: Jenny Rossen, PhD
• Email: jenny.rossen@shh.se
• Phone: +4684062985

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.