NCT06706453

Brief Summary

Background This is a survey to understand sleep in the context of medical trainees (on call) and the participants knowledge about the relevance of sleep, shiftwork, and the impact that sleep may have on their working performance. The survey has been developed by sleep experts from America, Europe, and Africa, in collaboration with the World Sleep Society. It should take about 30-40 minutes to complete. The survey will focus on three different aspects, complemented by two standard questionnaires:

  1. 1.Demographics and Place of Work
  2. 2.Basic Knowledge and Perception of Sleep
  3. 3.Sleep Routine
  4. 4.Epworth Sleepiness Scale, Insomnia Sleep Inventory

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
1mo left

Started Feb 2025

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress95%
Feb 2025Jun 2026

First Submitted

Initial submission to the registry

September 11, 2024

Completed
3 months until next milestone

First Posted

Study publicly available on registry

November 26, 2024

Completed
3 months until next milestone

Study Start

First participant enrolled

February 28, 2025

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2026

Last Updated

March 20, 2026

Status Verified

March 1, 2026

Enrollment Period

1.3 years

First QC Date

September 11, 2024

Last Update Submit

March 18, 2026

Conditions

Keywords

Medical trainingon callworking time

Outcome Measures

Primary Outcomes (1)

  • Impact of being ON CALL in the hospital on sleep

    Composite outcome as described by deviation from regular sleep in terms of sleep quality (points, out of 10; higher scores indicating more symptoms), quantity (duration, hours:mins), and deviation from circadian rhythm (measured in times of the day and duration, as well as perceived disturbance, points out of 10; higher points indicating more symptoms)

    cross-sectional survey (while filling in the questionnaire); experience within 3 months of completion

Secondary Outcomes (5)

  • Demographics

    within 3 months of completion of survey

  • Sleep routine

    within 3 months of completion of survey

  • Epworth Sleepiness Scale

    within 3 months of completion

  • Insomnia Severity Index

    within 3 months of completion

  • Basic knowledge and perception of sleep

    within 3 months of completion of survey

Study Arms (1)

Medical staff

Anyone who works in medicine with any on call commitment (student, intern, fellow, resident, consultant)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Medical staff that undertakes on call work (medical student, intern, fellow, resident, consultant)

You may qualify if:

  • medical staff
  • student / intern / fellow / resident / consultant
  • delivering on call work
  • any gender

You may not qualify if:

  • non-medical staff working in hospitals from the wider multidisciplinary team
  • underage (less than 18 years)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kings College London

London, SE1 7EH, United Kingdom

Location

Related Publications (2)

  • Lim DC, Najafi A, Afifi L, Bassetti C, Buysse DJ, Han F, Hogl B, Melaku YA, Morin CM, Pack AI, Poyares D, Somers VK, Eastwood PR, Zee PC, Jackson CL; World Sleep Society Global Sleep Health Taskforce. The need to promote sleep health in public health agendas across the globe. Lancet Public Health. 2023 Oct;8(10):e820-e826. doi: 10.1016/S2468-2667(23)00182-2.

    PMID: 37777291BACKGROUND
  • Zhang C, Spruyt K, Komolafe M, Mutschelknaus M, DelRosso LM, Steier J. Relationship between shift scheduling, sleep knowledge and sleep quality in medical trainees: protocol for a global cross-sectional survey. J Thorac Dis. 2025 Aug 31;17(8):6339-6347. doi: 10.21037/jtd-2025-291. Epub 2025 Aug 28.

Related Links

MeSH Terms

Conditions

Sleep Apnea SyndromesSleep Initiation and Maintenance Disorders

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesMental Disorders

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 11, 2024

First Posted

November 26, 2024

Study Start

February 28, 2025

Primary Completion (Estimated)

June 1, 2026

Study Completion (Estimated)

June 1, 2026

Last Updated

March 20, 2026

Record last verified: 2026-03

Locations