[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100617340":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":24,"centralContacts":29,"locations":38,"responsibleParty":58,"collaborators":60,"id":64,"slug":65,"hasResults":66,"nctId":67,"briefTitle":68,"officialTitle":68,"acronym":24,"eligibilityCriteria":69,"healthyVolunteers":70,"sex":71,"minAge":72,"maxAge":73,"enrollmentInfo":74,"targetDuration":24,"studyType":77,"phases":78,"briefSummary":80,"conditions":81,"keywords":85,"overallStatus":41,"whyStopped":24,"lastUpdateSubmitDate":88,"lastUpdatePostDateStruct":89,"startDateStruct":92,"completionDateStruct":94,"leadSponsor":96,"locationsCount":97},{"fullName":5,"class":6},"University of Aarhus","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Fixed daily routine","EXPERIMENTAL","All activities occur at the same time every day. During the five days, participants will have to complete various daily tests and also be asked to provide 8 saliva samples during days 1, 3, and 5",[13],"Behavioral: Fixed daily routine",{"label":15,"type":10,"description":16,"interventionNames":17},"Daily time delay of 1 hour","All activities will be delayed by one hour. During the five days, participants will have to complete various daily tests and also be asked to provide 8 saliva samples during days 1, 3, and 5",[18],"Behavioral: Daily time delay",[20,25],{"type":21,"name":9,"description":22,"armGroupLabels":23,"otherNames":24},"BEHAVIORAL","All activities occur at the same time every day",[9],null,{"type":21,"name":26,"description":27,"armGroupLabels":28,"otherNames":24},"Daily time delay","All activities will be delayed by one hour per day over a 5 day period.",[15],[30,35],{"name":31,"role":32,"phone":33,"phoneExt":24,"email":34},"Ali Amidi, PhD","CONTACT","+4587165305","ali@psy.au.dk",{"name":36,"role":32,"phone":24,"phoneExt":24,"email":37},"Alisha Guyett, PhD","alisha.guyett@psy.au.dk",[39],{"facility":40,"status":41,"city":42,"state":24,"zip":43,"country":44,"countryCode":45,"cosmosGeoPoint":46,"geoPoint":51,"contacts":52},"Aarhus University, Department of Psychology and Behavioural Sciences","RECRUITING","Aarhus","8000","Denmark","DK",{"type":47,"coordinates":48},"Point",[49,50],10.21076,56.15674,{"lat":50,"lon":49},[53,56],{"name":54,"role":32,"phone":55,"phoneExt":24,"email":37},"Alisha Guyett Guyett, PhD","+4587152078",{"name":31,"role":57,"phone":24,"phoneExt":24,"email":24},"SUB_INVESTIGATOR",{"type":59,"investigatorFullName":24,"investigatorTitle":24,"investigatorAffiliation":24,"oldNameTitle":24,"oldOrganization":24},"SPONSOR",[61],{"name":62,"class":63},"Independent Research Fund Denmark","INDUSTRY","100617340","the-effect-of-a-continuous-1-hour-time-delay-on-circadian-rhythms-100617340",false,"NCT07317349","The Effect of a Continuous 1-Hour Time Delay on Circadian Rhythms","Inclusion Criteria\n\n* Healthy adults aged 23-45 years\n* Part of a heterosexual, cohabiting couple willing to participate together in a five-day in-laboratory study\n* Both partners meet all inclusion criteria\n* Completion of at least upper-secondary education\n* Maintain a regular sleep-wake schedule\n* Habitual sleep timing within a normative range (non-extreme chronotype), assessed using the Morningness-Eveningness Questionnaire (MEQ) or the Munich Chronotype Questionnaire (MCTQ)\n* Both partners fall within the acceptable chronotype range to ensure aligned sleep-wake patterns\n* Low seasonality scores on the Seasonal Pattern Assessment Questionnaire (SPAQ)\n* Free from underlying sleep or mood disorders\n\nExclusion Criteria\n\n* Engages in night-shift work or maintains an irregular work or sleep schedule\n* International travel involving a time-zone change of more than two hours within the past two months, or anticipated travel before study completion\n* Diagnosed neurological, psychiatric, or sleep disorder (e.g., insomnia, sleep apnea, bipolar disorder)\n* High risk of sleep apnea, defined as a Berlin Questionnaire score \\>2 (Lauritzen et al., 2018)\n* Use of medications known to affect sleep, alertness, melatonin secretion, or circadian timing\n* Unable or unwilling to comply with behavioral restrictions, including refraining from electronic devices displaying time cues unless clocks are removed and devices are disconnected from Wi-Fi\n* Unable or unwilling to comply with consumption restrictions, including abstaining from caffeine, alcohol, and melatonin-rich foods during the study\n* Extreme chronotype, defined as a habitual midsleep time outside 03:00-05:00 on the MCTQ or classification as an extreme morning or extreme evening type on the MEQ\n* Daily caffeine consumption exceeding 400 mg (approximately 4-5 cups of coffee)\n* Current smoker or smoking within the past six months",true,"ALL","23 Years","45 Years",{"count":75,"type":76},40,"ESTIMATED","INTERVENTIONAL",[79],"NA","The purpose of this study is to investigate whether the experience of a daily time delay can affect our internal circadian rhythm.",[82,83,84],"Circadian Rhythms","Time Perception","Sleep",[86,87],"circadian phase delay","Healthy adults","2026-01-14",{"date":90,"type":91},"2026-01-16","ACTUAL",{"date":93,"type":76},"2025-12-20",{"date":95,"type":76},"2027-08-30",{"name":5,"class":6},1]