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New app-based program aims to fix night-shift workers' sleep and weight

NCT ID NCT07631767

Disease control Sponsor: Wageningen University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Aug 21, 2026 · Updated 3 times

Summary

This European trial tests a 24-week lifestyle program for 400 night-shift workers. The program, delivered via a mobile app and workshops, focuses on sleep, stress, diet, and exercise. The goal is to see if it helps workers sleep longer and improve their health.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Combined Lifestyle Intervention (behavioral program via mobile app and workshops)
What this could lead to
If successful, this could offer a practical way for night-shift workers to improve sleep and reduce obesity risk.
What could go wrong
This is a behavioral intervention, not a drug, so effects may be modest. The trial is not yet recruiting and results may not apply to all shift workers.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 400 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2026

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

21 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age ≥ 21 years * Work ≥ 24 hours per week * Shift work duration \> 3 years and currently doing night shifts * Expected to continue night shiftwork for at least 1 year after inclusion * On average working ≥ 4 night shifts per month * Working generally ≥ 2 consecutive night shifts * In possession of a smartphone and willing to download the study application Exclusion Criteria: * Body Mass Index (BMI) \< 18.5 or \> 40 kg/m2 * Pregnant or lactating * Chronic diseases with ongoing therapy (e.g. renal failure, active hepatitis, cirrhosis, myocardial infarction, chronic obstructive pulmonary disease and cancer) * Current or recent use of medications interfering with sleep, including: Central nervous system stimulants (e.g., Ritalin, Adderall, Modafinil or similar); Chronic use of sleep agents (e.g., benzodiazepine, non-hypnotic benzodiaze-pine, first-generation antihistamine, melatonin receptors agonists or similar); Other medications or combinations significantly affecting sleeping patterns * Recent or ongoing psychotherapy for sleep disorders * Current or recent use of medications affecting appetite or weight regulation, including: Appetite-enhancing/weight-gain medications (e.g., atypical antipsychotics, cor-ticosteroids such as prednisone, mirtazapine or similar); Appetite-suppressing/weight-loss medications (e.g., CNS stimulants such as Ritalin, Adderall, GLP-1 receptors agonists or similar); Other medications or combinations significantly influencing appetite or body weight * Participation in another human trial, lifestyle program or weight loss intervention within the past 3 months * Planned surgical procedure during the study period * History of or planned bariatric surgery/treatment

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Conditions

The condition(s) this trial relates to.

circadian rhythm sleep disorder circadian rhythm sleep disorder, shift work type Motor Activity Obesity obesity disorder Overweight

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Circadian misalignment Night shift work Obesity & overweight

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    5 sites in 3 countries. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Erasmus Medical Centre

    RECRUITING

    Rotterdam, Netherlands

  • Lodz

    NOT_YET_RECRUITING

    Lodz, Poland

  • TTZ

    NOT_YET_RECRUITING

    Bremerhaven, Germany

  • Uni Bremen

    RECRUITING

    Bremen, Germany

  • Wageningen University & Research

    RECRUITING

    Wageningen, Netherlands

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