Shift Hours' Impact on Fatigue and Tracking of Eye Dynamics (NCT07192380) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Shift Hours' Impact on Fatigue and Tracking of Eye Dynamics
France40 participantsStarted 2025-09-15
Plain-language summary
The goal of this clinical trial is to learn how night shift-induced sleep debt affects oculomotor patterns, attentional state, and diagnostic performance in emergency radiologists.
The main questions it aims to answer are:
* Does sleep debt from a night shift alter oculomotor parameters, as eyes movements (speed and amplitude), fixation duration, pupil size?
* Does a night shift impact radiologists' diagnostic accuracy, attentional state, and perceived fatigue? Researchers will compare radiologists after a night shift (sleep-deprived) with the same radiologists after a night of rest (control) to see if fatigue-related changes affect both visual exploration strategies and diagnostic performance.
Participants will:
* Perform a guided saccade task assessed by eye tracking (primary endpoint),
* Read thoracic CT scans (with and without pulmonary embolism cases) to assess diagnostic performance and visual exploration patterns,
* Undergo EEG recording to measure attentional state,
* Complete self-report questionnaires on sleepiness and fatigue.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
Associate radiologists at IMADIS Group
* In their current position for at least one year
* Working at one of the IMADIS Group on-call centers
* Performing night shifts during the study period
* Able to wear an actimeter watch during the study period (it may be removed during certain procedures, but must be put back on afterwards)
* Having given their free and informed consent to participate in the study
Non- inclusion criteria:
* Leave during the study period
* Pregnant women, women in labor, or breastfeeding women
* Subjects wearing glasses or contact lenses
Exclusion Criteria:
\- Having slept more than 6 hours during the night shift
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1This trial is studying how shift work and sleep deprivation affect radiologists' eye movements and fatigue — since I may be receiving imaging reports read by radiologists, how might findings from a study like this potentially relate to the accuracy of my own diagnostic results?
2The trial is listed as 'not yet recruiting' — if my doctor thinks this kind of research is relevant to my care or interests, how far out do they expect enrollment to actually begin, and would it even be realistic for me to participate given my current health situation?
3The study is measuring something called the 'slope of the relationship between maximum speed and saccade magnitude' using eye-tracking — can my doctor explain in plain terms what that actually means and why it might matter for understanding fatigue in a clinical setting?
4This trial involves EEG and eye-tracking technology to measure sleepiness — are there any physical or logistical demands involved in wearing that kind of equipment over a shift that I or a family member working in radiology should be aware of before considering participation?
5Since this study is listed as Phase NA, meaning it's observational or device-based rather than testing a treatment, can my doctor help me understand whether this type of research would offer me any direct medical benefit, or whether it's more about contributing to broader knowledge about radiologist fatigue?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Comparison of slope of the relationship between maximum speed and saccade magnitude
Timeframe: Comparison of measurement obtained during an 8-minute guided saccade task during the two measurement phases : after a night call and after a night's rest