Shift Workers' Health Behavior Action Program Across Europe (SHAPE)
18 augusti 2026 uppdaterad av: Marco Mensink, Wageningen University
This study evaluates the effects of a Combined Lifestyle Intervention Program (CLIP) on sleep, lifestyle behaviors, obesity risk and health in night-shift workers.
The primary objective is to assess the effect of the CLIP on objectively measured sleep duration.
Secondary objectives include behavioral outcomes related to sleep, diet, physical activity, and stress, as well as body weight and metabolic outcomes, .
It is hypothesized that CLIP participants will show a greater increase in sleep duration than controls, alongside favorable changes in lifestyle and health outcomes.
Studieöversikt
Status
Rekrytering
Betingelser
Intervention / Behandling
Studietyp
Interventionell
Inskrivning (Beräknad)
400
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
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Rotterdam, Nederländerna
- Rekrytering
- Erasmus Medical Centre
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Kontakt:
- H. Lammers-van der Holst
- Telefonnummer: 0031 10 704 0704
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Wageningen, Nederländerna
- Rekrytering
- Wageningen University & Research
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Kontakt:
- M. Mensink
- Telefonnummer: 0031 (0)317 480 100
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Lodz, Polen
- Har inte rekryterat ännu
- Lodz
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Kontakt:
- M. Wrzesińska
- Telefonnummer: 0048 42 272 58 13
- E-post: prorektor.int@umed.lodz.pl
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Bremen, Tyskland
- Rekrytering
- Uni Bremen
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Kontakt:
- U. Klink
- Telefonnummer: 0049 421 218 68980
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Bremerhaven, Tyskland
- Har inte rekryterat ännu
- TTZ
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-
Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Ja
Beskrivning
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
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Förebyggande
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Experimentell: Intervention
Intervention group receives access to the 24-week combined lifestyle intrevention, which includes the mobile intervention app and four interactive workshops.
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The 24-week lifestyle intervention is structured in four 6-week blocks focusing on sleep and stress management or diet and physical activity.
Lifestyle advice and behavior change techniques are delivered via a mobile application, complemented by workshops.
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Inget ingripande: Control
The control group receives informational brochures with general advice on the four life-style domains, without active behavioral support.
The control group receives access to the combined lifestyle intrevention after the intervention period has ended.
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Sleep duration
Tidsram: From enrollment to the end of intervention (24 weeks)
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Total sleep time (min/24h)
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From enrollment to the end of intervention (24 weeks)
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Body weight
Tidsram: From enrollment to end of intervention (24 weeks)
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(kg)
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From enrollment to end of intervention (24 weeks)
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BMI
Tidsram: From enrollment to end of intervention (24 weeks)
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(kg/m2)
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From enrollment to end of intervention (24 weeks)
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Objective sleep quality
Tidsram: From enrollment to end of intervention (24 weeks)
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Wake after sleep onset (min spent awake/main sleep episode), derived from actigraphy data
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From enrollment to end of intervention (24 weeks)
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Overall diet quality
Tidsram: From enrollment to end of intervention (24 weeks)
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Diet quality score: Eetscore™, a 55-item FFQ which is scored with the Dutch Healthy Diet 2015-index to evaluate adherence to the Dutch food-based dietary guideline; resulting in a total score between zero (no adherence) and 100 (complete adherence).
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From enrollment to end of intervention (24 weeks)
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Physical activity level
Tidsram: From enrollment to end of intervention (24 weeks)
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Light, moderate, vigorous activity (min), Sedentary time (min) as measured with an actigraphy (Motionwatch)
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From enrollment to end of intervention (24 weeks)
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Perceived stress
Tidsram: From enrollment to end of intervention (24 weeks)
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Perceived stress score (PSS-10), a 10-item validated questionnaire assessing the extent to which individuals perceive their lives as unpredictable, uncontrollable, and overloaded.
Items are rated on a 5-point Likert scale referring to experiences over the past month; higher score mean more stress.
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From enrollment to end of intervention (24 weeks)
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Subjective sleep quality (Insomina)
Tidsram: From enrollment to end of intervention (24 weeks)
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Insomnia severity (0-28): a 7-item self-administered questionnaire validated in shift workers as a proxy for sleep quality.
Items assess the severity of insomnia symptoms, including difficulties with sleep onset, maintenance, and early awakening.
Each item is scored 0-4, with total scores ranging from 0 to 28; higher scores indicate more severe insomnia
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From enrollment to end of intervention (24 weeks)
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Subjective leep quality (pattern)
Tidsram: [Time Frame: From enrollment to end of intervention (24 weeks)]
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Shift Work Disorder Questionnaire (SWDQ): a 4-item questionnaire assessing sleep patterns, excessive sleepiness, and functional impairment related to shift work (53).
Each item is scored 1-4, yielding a total score of 4-16, with higher scores reflecting greater symptom severit
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[Time Frame: From enrollment to end of intervention (24 weeks)]
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Chrono-nutrition patterns
Tidsram: From enrollment to end of intervention (24 weeks)
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Meal timing, frequency, regularity; using the Chrono nutrition Questionnaire for Shift Workers (CNQ-Shift).
The questionnaire contains 20-23 questions, five questions each for morning, afternoon, and night shifts, three split shifts questions (if applicable), and two questions for work-free days.
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From enrollment to end of intervention (24 weeks)
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Food preferences
Tidsram: From enrollment to end of intervention (24 weeks)
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FFPQ (liking/wanting scores): Participants rate "how pleasant it would be to try a bite of this food," using a 100-point visual analogue scale (explicit liking).
A forced choice procedure is then carried used to assess which food participants would "most like to eat now" (implicit wanting).
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From enrollment to end of intervention (24 weeks)
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Occupational physical activity
Tidsram: From enrollment to end of intervention (24 weeks)
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OSPAQ (min)
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From enrollment to end of intervention (24 weeks)
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Work-related sense of coherence
Tidsram: From enrollment to end of intervention (24 weeks)
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Work-related sense of coherence Work-Soc (5-point Likert scale), a 9-scale assessing individuals' perceived comprehensibility, manageability, and meaningfulness at work.
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From enrollment to end of intervention (24 weeks)
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Satisfaction With Life
Tidsram: [Time Frame: From enrollment to end of intervention (24 weeks)]
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Satisfaction With Life Scale (SWLS): a 5-item questionnaire evaluating global life satisfaction (66).
Items are rated on a 7-point scale
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[Time Frame: From enrollment to end of intervention (24 weeks)]
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Andra resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Body composition
Tidsram: From enrollment to end of intervention (24 weeks)
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body Fat percentage (%) measured with bio-impedance analysis (BIA)
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From enrollment to end of intervention (24 weeks)
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waist to hip circumference
Tidsram: [Time Frame: From enrollment to end of intervention (24 weeks)]
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ratio of waist and hip circumference (cm/cm)
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[Time Frame: From enrollment to end of intervention (24 weeks)]
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Behavior assessment
Tidsram: From enrollment to end of intervention (24 weeks)
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Action planning, Coping planning, Habit formation, Intention.
All items are scored on a either a 5 or 7-point Likert scale ranging from totally disagree to totally agree.
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From enrollment to end of intervention (24 weeks)
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Stress biomarker
Tidsram: From enrollment to end of intervention (24 weeks)
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Hair cortisol concentraition (HCC), pg/mg hair
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From enrollment to end of intervention (24 weeks)
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glucose
Tidsram: [Time Frame: From enrollment to end of intervention (24 weeks)]
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fasted blood glucose (mM)
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[Time Frame: From enrollment to end of intervention (24 weeks)]
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Insulin
Tidsram: [Time Frame: From enrollment to end of intervention (24 weeks)]
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fasted plasma insulin (pmol/L)
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[Time Frame: From enrollment to end of intervention (24 weeks)]
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blood lipids
Tidsram: [Time Frame: From enrollment to end of intervention (24 weeks)]
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fasted blood lipids (mmol/L)
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[Time Frame: From enrollment to end of intervention (24 weeks)]
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blood pressure
Tidsram: [Time Frame: From enrollment to end of intervention (24 weeks)]
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Diastolic and systolic blood pressure in fasted state (mmHg)
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[Time Frame: From enrollment to end of intervention (24 weeks)]
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circadian biomarker
Tidsram: [Time Frame: From enrollment to end of intervention (24 weeks)]
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urinary melatonin (ng/mL)
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[Time Frame: From enrollment to end of intervention (24 weeks)]
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Participant satisfaction and feasibility
Tidsram: end of intervention (week 24)
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assessed using a study-specific questionnaire evaluating participants' experiences with the intervention content, delivery, usability, and perceived burden of the intervention
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end of intervention (week 24)
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Samarbetspartners och utredare
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Publikationer och användbara länkar
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Användbara länkar
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Faktisk)
15 maj 2026
Primärt slutförande (Beräknad)
1 juli 2027
Avslutad studie (Beräknad)
1 december 2027
Studieregistreringsdatum
Först inskickad
1 maj 2026
Först inskickad som uppfyllde QC-kriterierna
1 juni 2026
Första postat (Faktisk)
8 juni 2026
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
20 augusti 2026
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
18 augusti 2026
Senast verifierad
1 maj 2026
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- NL-010791
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