[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100539879":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":20,"centralContacts":29,"locations":37,"responsibleParty":56,"collaborators":59,"id":61,"slug":62,"hasResults":63,"nctId":64,"briefTitle":65,"officialTitle":65,"acronym":66,"eligibilityCriteria":67,"healthyVolunteers":68,"sex":69,"minAge":70,"maxAge":71,"enrollmentInfo":72,"targetDuration":19,"studyType":75,"phases":76,"briefSummary":78,"conditions":79,"keywords":82,"overallStatus":39,"whyStopped":19,"lastUpdateSubmitDate":88,"lastUpdatePostDateStruct":89,"startDateStruct":92,"completionDateStruct":94,"leadSponsor":96,"locationsCount":97},{"fullName":5,"class":6},"Pennington Biomedical Research Center","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Fasting-refeeding cycle","EXPERIMENTAL","Participants will be maintained in metabolic chambers and exposed to 1 day of energy balance, 2 days of fasting, and 2 days of ad-libitum refeeding.",[13],"Behavioral: Fasting-refeeding cycle",[15],{"type":16,"name":9,"description":17,"armGroupLabels":18,"otherNames":19},"BEHAVIORAL","Participants will be maintained in metabolic chambers and exposed to 1 day of energy balance with a standard diet, 2 days of fasting (only water), and 2 days of ad-libitum refeeding using a liquid diet provided in hydration bladders to avoid portion control.",[9],null,[21,24,26],{"name":22,"affiliation":5,"role":23},"Rodrigo Fernandez-Verdejo, PhD","PRINCIPAL_INVESTIGATOR",{"name":25,"affiliation":5,"role":23},"Eric Ravussin, PhD",{"name":27,"affiliation":28,"role":23},"Dragana Lovre, MD","Tulane University",[30,34],{"name":22,"role":31,"phone":32,"phoneExt":19,"email":33},"CONTACT","2257632594","Rodrigo.Fernandez@pbrc.edu",{"name":25,"role":31,"phone":35,"phoneExt":19,"email":36},"2257633186","Eric.Ravussin@pbrc.edu",[38],{"facility":5,"status":39,"city":40,"state":41,"zip":42,"country":43,"countryCode":44,"cosmosGeoPoint":45,"geoPoint":50,"contacts":51},"RECRUITING","Baton Rouge","Louisiana","70808","United States","US",{"type":46,"coordinates":47},"Point",[48,49],-91.18747,30.44332,{"lat":49,"lon":48},[52],{"name":53,"role":31,"phone":54,"phoneExt":19,"email":55},"Rodrigo Fernández-Verdejo, PhD","225-763-2594","rodrigo.fernandez@pbrc.edu",{"type":23,"investigatorFullName":57,"investigatorTitle":58,"investigatorAffiliation":5,"oldNameTitle":19,"oldOrganization":19},"Eric Ravussin","Professor",[60],{"name":28,"class":6},"100539879","experimental-approach-to-test-predictions-of-body-weight-regulation-models-100539879",false,"NCT06309576","Experimental Approach to Test Predictions of Body Weight Regulation Models","DIP","Inclusion Criteria:\n\n* Body mass index lower than 20 kg\u002Fm2 for the low body weight group, or 30 kg\u002Fm2 or greater for the obesity group\n* 18-40 years old\n* Nulliparous and regular menstrual cycle (25-35 days) during the last six months (in women)\n* Normal thyroid function, blood count, and chemistry 15 panel (normal plasma glucose will be considered at \\\u003C100 mg\u002FdL; normal serum HDL cholesterol at \\>=50 mg\u002FdL for women and \\>=40 mg\u002FdL for men; and normal serum triglycerides at \\\u003C150 mg\u002FdL).\n* Self-reported weight stability during the last six months (±3 kg)\n* Rate the liking of at least one of the flavored liquid meals (Ensure Plus, Abbot Nutrition) between 5 and 8 on a 9-point Likert scale\n* Willing to only drink up to two assigned flavors of Ensure Plus for two consecutive days\n\nExclusion Criteria:\n\n* Eating disorders as indicated by a global score ≥2.80 in the Eating Disorder Examination Questionnaire, or a previous diagnosis of an eating disorder\n* For the low body weight group, having food insecurity (with or without hunger) as assessed by the USDA\n* Recreational moderate-intensity physical activity ≥150 min\u002Fweek, recreational vigorous-intensity physical activity ≥75 min\u002Fweek, or a combination of recreational moderate-intensity and vigorous-intensity physical activity (moderate time + \\[2 × vigorous time\\]) ≥150 min\u002Fweek as assessed by the Global Physical Activity Questionnaire, or being a professional athlete\n* Cigarette or vape smoking\n* Intake of more than 14 alcoholic drinks per week\n* Use of medications that may affect energy intake and\u002For expenditure, for example, semaglutide, liraglutide, exenatide, other GLP-1 receptor agonists, phentermine-topiramate, naltrexone-bupropion, orlistat, metformin, SGLT2 inhibitors, pramlintide, levocarnitine, amphetamines, and amphetamine-like drugs\n* Human immunodeficiency virus, galactosemia, and lactose intolerance\n* Diseases that affect energy homeostasis including endocrine such as hypo\u002Fhyperthyroidism, or type 1 or 2 diabetes; cancer; chronic pulmonary diseases; cardiovascular disease; and renal disease\n* History of inflammatory bowel disease (ulcerative colitis, Crohn's), malabsorption syndromes (intestinal, pancreatic), and sprue or gluten intolerance\n* Having moderate to severe sleep apnea defined as an oxygen desaturation index \\>10 times\u002Fhour assessed by overnight oximetry to be conducted on the night following the screening visit\n* Use of oral hormonal contraceptives or less than 6 months using a hormonal intrauterine device (in women)\n* Adults who are unable to consent\n* Prisoners\n* Currently pregnant or breastfeeding (in women)",true,"ALL","18 Years","40 Years",{"count":73,"type":74},12,"ESTIMATED","INTERVENTIONAL",[77],"NA","The regulation of human body weight and fatness is not fully understood. Although some models of regulation have been proposed (set point, dual-intervention point, others), no studies have been designed to test their predictions. In this pilot and feasibility study, the investigators will implement an experimental approach to test the predictions of models of body weight regulation in humans. Men and women with either low body weight or obesity will be exposed to a 2-day fasting followed by a 2-day ad-libitum refeeding. During the entire fasting-refeeding period, energy intake and expenditure will be accurately measured within metabolic chambers. The investigators will therefore determine the compensatory responses to fasting elicited to prevent weight loss. The results will serve to design and power future studies to better understand body weight regulation.",[80,81],"Obesity","Underweight",[83,84,85,86,87],"Energy expenditure","Energy intake","Energy balance","Set point model","Dual-intervention point model","2026-05-27",{"date":90,"type":91},"2026-05-29","ACTUAL",{"date":93,"type":91},"2025-01-17",{"date":95,"type":74},"2026-12-03",{"name":5,"class":6},1]