Shift-work DisorderNCT07394283
Impact of Night Shift Work on Dietary Habits Among Intensive Care and Emergency Healthcare Workers (NUTRINIGHT)
An observational study of Shift-work Disorder, run by Centre Hospitalier Universitaire de Nice at 1 site in France.
Trial summary
Night shift work is an essential component of healthcare systems, particularly in intensive care units and emergency departments, where continuous patient monitoring and rapid clinical decision-making are required. Read more about this study
- Who is it for?
- Ages 18 to 64 yearsHealthy volunteers can take part
- Conditions the study is for
- Shift-work Disorder
- What is being tested?
- Healthcare Night Shift Workers
- How many people
- 245 participants
- Where
- 1 siteFrance
- Study dates
- 1 Mar 2026to 1 Jun 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 64 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: The study population consists of adult night shift workers from different professional sectors. This includes healthcare professionals working in intensive care units and emergency departments, as well as night workers employed innon-healthcare sectors. Participation is voluntary, and data are collected through an anonymous, self-administered online questionnaire."
Who may be able to join
- Adults aged 18 years and older.
- Currently working night shifts.
- Employment in healthcare (intensive care units or emergency departments) or in non-healthcare professional sectors
- Voluntary participation and completion of the online questionnaire
Who cannot join
- None
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
France1 site
CHU de Nice
Nice, Alpes-Maritimes, 06000
sophie ESTRAN, +33492035797 ext. +33492035797, estran.s@chu-nice.fr
About this study
Official title: Impact of Night Shift Work on Dietary Habits Among Intensive Care and Emergency Healthcare Workers: An Observational Questionnaire-Based Study
Night shift work is an essential component of healthcare systems, particularly in intensive care units and emergency departments, where continuous patient monitoring and rapid clinical decision-making are required. However, it is associated with diruption of the circadian rhythm , sleep disturbances, and physiological stress, which may influence lifestyle behaviors, including dietary habits. Previous studies have reported that night work can be associated with changes in meal timing, increased caloric intake, preference for energy-dense foods, and reduced overall diet quality.Despite the growing literature on night work and nutrition, data specifically describing dietary habits among healthcare professionals working night shifts in high-intensity clinical settings remain limited. Intensive care units and emergency departments combine high workload, psychological stress, time constraints, and restricted access to appropriate meals during night hours, all of which may affect eating behaviors. Moreover, whether these dietary patterns are specific to healthcare professionals or primarily related to night work itself remains unclear. This observational, cross-sectional study aims to describe dietary habits among healthcare professionals working night shifts in intensive care units and emergency departments, and to compare these habits with those of night workers from non-healthcare sectors. Data will be collected prospectively through a voluntary, anonymous, self-administered online questionnaire during a defined inclusion period. The questionnaire will explore meal timing, eating patterns, food choices, and constraints perceived as influencing dietary behaviors during night work. By providing a descriptive overview of dietary habits across different categories of night workers, the study seeks to improve understanding of how night work and occupational context influence eating behaviors. The findings may contribute to the development of future preventive strategies and workplace health initiatives aimed at improving the health and well-being of night shift workers
- Conditions
- Shift-work Disorder
- Being tested
- Healthcare Night Shift Workers
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Healthcare Night Shift WorkersOther
Data are collected through an anonymous, self-administered online questionnaire.
| Study group | Role | What they receive |
|---|---|---|
| Healthcare Night Shift Workers | Not described Receives: Other: Healthcare Night Shift Workers | |
| Non-Healthcare Night Shift Workers | Not described Receives: Other: Healthcare Night Shift Workers |
What is being measured
The primary outcome is the main question the study is designed to answer.
Dietary Habits of Night Shift Workers
Online questionnaire without score
Measured: At the inclusion
Secondary outcomes (3)
Meal Timing During Night Shifts
Anonymous self-administered online questionnaire without score
Measured: At the inclusion
Eating Patterns During Night Shifts
Anonymous self-administered online questionnaire without score
Measured: At the inclusion
Comparison of Dietary Habits Between Healthcare and Non-Healthcare Night Shift Workers
Questionnaire data
Measured: At the inclusion
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Feb 2026
- Study start1 Mar 2026 (estimated)
- Primary completion1 Jun 2026 (estimated)
- Study completion1 Jun 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Shift-work DisorderStudies of the same condition, open and under way.
- More trials run by Centre Hospitalier Universitaire de NiceThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 245 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Centre Hospitalier Universitaire de Nice
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07394283
- Sponsor's protocol ID
- 26Onco-Hémato01
- Status last verified
- Jan 2026
- First submitted
- 30 Jan 2026
- Last updated
- 6 Feb 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Impact of Night Shift Work on Dietary Habits Among Intensive Care and Emergency Healthcare Workers: An Observational Questionnaire-Based Study
- ClinicalTrials.gov ID
- NCT07394283
- Acronym / sponsor ID
- 26Onco-Hémato01
- Conditions
- Shift-work Disorder
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 245 participants (estimated)
- Lead sponsor
- Centre Hospitalier Universitaire de NiceUniversity, hospital or other
- Study start
- 1 Mar 2026 (estimated)
- Primary completion
- 1 Jun 2026 (estimated)
- Study completion
- 1 Jun 2026 (estimated)
- First posted
- 6 Feb 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Night shift work is an essential component of healthcare systems, particularly in intensive care units and emergency departments, where continuous patient monitoring and rapid clinical decision-making are required. However, it is associated with diruption of the circadian rhythm , sleep disturbances, and physiological stress, which may influence lifestyle behaviors, including dietary habits. Previous studies have reported that night work can be associated with changes in meal timing, increased caloric intake, preference for energy-dense foods, and reduced overall diet quality.Despite the growing literature on night work and nutrition, data specifically describing dietary habits among healthcare professionals working night shifts in high-intensity clinical settings remain limited. Intensive care units and emergency departments combine high workload, psychological stress, time constraints, and restricted access to appropriate meals during night hours, all of which may affect eating behaviors. Moreover, whether these dietary patterns are specific to healthcare professionals or primarily related to night work itself remains unclear. This observational, cross-sectional study aims to describe dietary habits among healthcare professionals working night shifts in intensive care units and emergency departments, and to compare these habits with those of night workers from non-healthcare sectors. Data will be collected prospectively through a voluntary, anonymous, self-administered online questionnaire during a defined inclusion period. The questionnaire will explore meal timing, eating patterns, food choices, and constraints perceived as influencing dietary behaviors during night work. By providing a descriptive overview of dietary habits across different categories of night workers, the study seeks to improve understanding of how night work and occupational context influence eating behaviors. The findings may contribute to the development of future preventive strategies and workplace health initiatives aimed at improving the health and well-being of night shift workers
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Healthcare Night Shift Workers | – | Other: Healthcare Night Shift Workers |
| Non-Healthcare Night Shift Workers | – | Other: Healthcare Night Shift Workers |
Who may qualify
- Ages
- 18 to 64 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- The study population consists of adult night shift workers from different professional sectors. This includes healthcare professionals working in intensive care units and emergency departments, as well as night workers employed innon-healthcare sectors. Participation is voluntary, and data are collected through an anonymous, self-administered online questionnaire."
Key inclusion criteria (4 listed)
- Adults aged 18 years and older.
- Currently working night shifts.
- Employment in healthcare (intensive care units or emergency departments) or in non-healthcare professional sectors
- Voluntary participation and completion of the online questionnaire
Key exclusion criteria (1 listed)
- None
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Healthcare Night Shift WorkersData are collected through an anonymous, self-administered online questionnaire. | Other | Healthcare Night Shift Workers, Non-Healthcare Night Shift Workers |
Primary outcome
Dietary Habits of Night Shift Workers
Time frame: At the inclusion
Online questionnaire without score
3 secondary outcomes
Meal Timing During Night Shifts
Time frame: At the inclusion
Eating Patterns During Night Shifts
Time frame: At the inclusion
Comparison of Dietary Habits Between Healthcare and Non-Healthcare Night Shift Workers
Time frame: At the inclusion
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Feb 2026.
Related trials for Shift-work Disorder
Active, not recruiting
Countermeasures to Circadian Misalignment
Circadian Rhythm Sleep Disorder of Shift Work Type, Metabolic Disease
Not yet recruitingObservational study
Circadian Clock Proteins in Gingival Crevicular Fluid of Individuals With and Without Circadian Rhythm Disruption
Gingivitis, Circadian Rhythm Disruption
RecruitingObservational study
Breast Cancer Risk Assessment in Night Shift Workers - Implementation of a Personalized Consultation
Breast Neoplasms Diagnosis
Recruiting
Role of Sleep Reactivity in Shift Work Disorder
Shift-work Disorder
Not yet recruitingObservational study
Sleep, Mindfulness, and Shift-Level Safety Performance in Perianesthesia Nurses
Sleep, Fatigue
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Shift-work Disorder, run by Centre Hospitalier Universitaire de Nice at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 6 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact sophie ESTRAN (492035797 ext. +33, estran.s@chu-nice.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Dietary Habits of Night Shift Workers (time frame: At the inclusion). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Feb 2026.