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Trial registered on ANZCTR
Registration number
ACTRN12618001182280
Ethics application status
Approved
Date submitted
11/07/2018
Date registered
17/07/2018
Date last updated
15/09/2020
Date data sharing statement initially provided
4/06/2019
Date results provided
15/09/2020
Type of registration
Prospectively registered
Titles & IDs
Public title
Exploring how chronic disruption of circadian rhythm with mistimed sleep influence the appetite
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Scientific title
Social jetlag and hedonic feeding – an exploratory research
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Secondary ID [1]
295500
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None
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Obesity
308767
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Condition category
Condition code
Diet and Nutrition
307701
307701
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0
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Obesity
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Intervention/exposure
Study type
Observational
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Patient registry
False
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Exposure observed: chronic circadian rhythm disruption with mistimed sleep (as assessed by social jetlag) and its interaction with chronic partial sleep deprivation. There will be 2 exposure groups - 1 with social jetlag and with chronic partial sleep deprivation and 1 with social jetlag and without chronic partial sleep deprivation.
Condition observed: appetite and hedonic eating
This will be a cross-sectional study with 2 study visits. Therefore no follow-up is planned.
Total duration of the study for participants: 1 study visit of 2 hours. In the a sub-group with fMRI the total study duration for participants will be 2 visits of 2 hours separated by 1 week.
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Intervention code [1]
301820
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Early Detection / Screening
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Comparator / control treatment
Control groups: 1 group without social jetlag and with chronic partial sleep deprivation and 1 group without social jetlag and without chronic partial sleep deprivation
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Control group
Active
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Outcomes
Primary outcome [1]
306693
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hedonic appetite sensation assessed using 100mm visual analogue scales
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Assessment method [1]
306693
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Timepoint [1]
306693
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at first study visit
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Secondary outcome [1]
349265
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functional connectivity of the areas of reward associated circuitry (amygdala, insula, striatum, anterior cingulate cortex, orbitofrontal cortex) by functional MRI
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Assessment method [1]
349265
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Timepoint [1]
349265
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at Visit 2, 1 week after Visit 1
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Secondary outcome [2]
349266
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appetite sensation assessed by serum assays for neuropeptide Y
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Assessment method [2]
349266
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Timepoint [2]
349266
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Visit 1
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Secondary outcome [3]
349503
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appetite sensation assessed by serum assays for ghrelin
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Assessment method [3]
349503
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Timepoint [3]
349503
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Visit 1
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Secondary outcome [4]
349504
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appetite sensation assessed by serum assays for leptin
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Assessment method [4]
349504
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Timepoint [4]
349504
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Visit 1
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Secondary outcome [5]
349505
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appetite sensation assessed by serum assays for 2-arachidonoylglycerol
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Assessment method [5]
349505
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Timepoint [5]
349505
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Visit 1
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Secondary outcome [6]
349506
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appetite sensation assessed by serum assays for nesfatin-1
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Assessment method [6]
349506
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Timepoint [6]
349506
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Visit 1
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Secondary outcome [7]
349507
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appetite sensation assessed by serum assays for insulinemia
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Assessment method [7]
349507
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Timepoint [7]
349507
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Visit 1
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Eligibility
Key inclusion criteria
1. Healthy adults 18-50 years of age
2. Caffeine consumption less than or equal to 350 mg/day
3. Alcohol consumption less than or equal to 6 standard drinks/week
4. No use of any medication
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Minimum age
18
Years
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Maximum age
50
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
1. Any acute illness within 2 weeks before study inclusion or at enrolment
2. Any chronic diseases (including obesity as defined by BMI)
3. Any psychiatric disorders at enrolment (including anxiety, depression, anorexia, bulimia, nocturnal eating)
4. Working in shifts
5. Jetlag resulting from flight across more than 2 time zones within 3 months before study inclusion
6. Pregnancy and lactation
7. Menopause
8. Refuse to participate
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Study design
Purpose
Natural history
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Duration
Cross-sectional
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Selection
Case control
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
3/09/2018
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Actual
3/09/2018
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Date of last participant enrolment
Anticipated
2/09/2019
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Actual
4/12/2019
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Date of last data collection
Anticipated
9/09/2019
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Actual
4/12/2019
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Sample size
Target
80
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Accrual to date
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Final
80
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Recruitment outside Australia
Country [1]
10635
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Romania
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State/province [1]
10635
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Funding & Sponsors
Funding source category [1]
300085
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Self funded/Unfunded
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Name [1]
300085
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None
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Address [1]
300085
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None
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Country [1]
300085
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Primary sponsor type
Individual
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Name
Adriana Rusu
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Address
2-4 Clinicilor Street, 400006 Cluj-Napoca, Romania
Department of Diabetes and Nutrition Diseases
Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca
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Country
Romania
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Secondary sponsor category [1]
299487
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None
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Name [1]
299487
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Address [1]
299487
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Country [1]
299487
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
300933
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Ethics Committee of the Iuliu Hatieganu University of Medicine and Pharmacy
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Ethics committee address [1]
300933
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8 Victor Babes Street, 400012 Cluj-Napoca, Cluj County
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Ethics committee country [1]
300933
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Romania
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Date submitted for ethics approval [1]
300933
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11/05/2018
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Approval date [1]
300933
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31/05/2018
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Ethics approval number [1]
300933
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242/31.05.2018
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Summary
Brief summary
The circadian system has reciprocal neural connections to the brain regions that regulate arousal and sleep and thus, the sleep and circadian control system are closely intertwined. Experimental evidences showed that circadian system disruption interacts with timing of sleep and that mistimed sleep can in turn disrupt the circadian timing system. Very few is known on the mechanisms mediating the link between circadian rhythm disruptions and obesity risk. In this context, we hypothesize that chronic small disruptions of circadian rhythm with mistimed sleep alters hedonic food processing and that it interacts with sleep duration in inducing these alterations. As form of chronic disruption of circadian rhythm with mistimed sleep will be investigated social jetlag, the most frequent form of circadian rhythm disturbance and resulting from a misalignment between an individual’s endogenous circadian clock and actual sleep times. The main objective of this cross-sectional research is to investigate the impact social jetlag on hedonic eating in healthy subjects during free living conditions. For fulfilling its objectives the research will have a main study and fMRI sub-study. Main study – 80 subjects in 4 study groups (40 subjects with social jetlag [20 with short sleep duration (<7 hours/night); 20 with normal sleep duration]; 40 subjects without social jetlag [20 with short sleep duration; 20 with normal sleep duration]) matched for age, sex and BMI fMRI sub-study – 28 right-handed subjects in 4 study groups (14 subjects with social jetlag [7 with short sleep duration; 7 with normal sleep duration]; 14 subjects without social jetlag [7 with short sleep duration; 7 normal sleep duration]) matched for age, sex and BMI
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Dr Adriana Rusu
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Address
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Iuliu Hatieganu University of Medicine and Pharmacy
Department of Diabetes and Nutrition
2-4 Clinicilor Street
400006 Cluj-Napoca
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Country
85326
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Romania
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Phone
85326
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+40729114519
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Fax
85326
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Email
85326
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[email protected]
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Contact person for public queries
Name
85327
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Adriana Rusu
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Address
85327
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Iuliu Hatieganu University of Medicine and Pharmacy
Department of Diabetes and Nutrition
2-4 Clinicilor Street
400006 Cluj-Napoca
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Country
85327
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Romania
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Phone
85327
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+40729114519
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Fax
85327
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Email
85327
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[email protected]
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Contact person for scientific queries
Name
85328
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Adriana Rusu
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Address
85328
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Iuliu Hatieganu University of Medicine and Pharmacy
Department of Diabetes and Nutrition
2-4 Clinicilor Street
400006 Cluj-Napoca
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Country
85328
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Romania
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Phone
85328
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+40729114519
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Fax
85328
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Email
85328
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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