- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05730231
Clinical Trials of Effects of Time Restricted Eating on Health Parameters in Adults (TRE)
Comparison of Calorie Restriction With Early Time-restricted Eating and Calorie Restriction With Mid-day Time-restricted Eating and Daily Calorie Restriction
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Obesity has become one of the world's most common diseases and is a major global public health challenge. Obesity contributes to an increased risk of developing various chronic diseases, such as diabetes, metabolic syndrome, hypertension, cardiovascular and kidney diseases and many others. Reducing excess body weight and improving eating habits decreases risk of disease and mortality. A lot of dietary strategies for weight loss are known and most of them are based on daily calorie restriction. Recently, an increasingly popular dietary strategy has been "time restricted eating (TRE)". In this strategy, all calorie intake is restricted within a consistent interval of less than 12 hours (4 - 10 hours). Eating window is limited to early part of the day - early TRE or mid-day TRE. Research shows that TRE has a number of beneficial effect on individuals, including weight loss, improvement of insulin sensitivity, hypercholesterolaemia, circadian rhythm of hormone secretion and other. Which TRE (early or mid-day TRE) has better health effects is still being investigated. It is also not clear how the timing, number and composition of individual meals affect on the health indicators, mentioned previously.
Therefore, the aim of our study is to evaluate and compare the effects of calorie restriction with early and mid-day time-restricted eating (TRE) and daily calorie restriction on weight loss and human health parameters in adults with at least two components of metabolic syndrome and yet not receiving any medication. The components of metabolic syndrome (lipid profile, blood pressure, anthropometry, inflammation status, glucose levels), antioxidative status, hormones (leptin, ghrelin, cortisol, insulin, adiponectin, cholecystokinin, melatonin, BDNF, IGF-1) will be measured. In addition changes in gene expression of different proteins will be examined. Moreover, stool samples will be also taken at baseline and after three months of intervention.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Izola, Slovenia, 6310
- University of Primorska, Faculty of Health Sciences
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
BMI 25-35 kg/m2
+ one of the following criteria:
- Increased waist circumference ≥ 94 cm in men and ≥ 80 cm in women
- Fasting plasma glucose > 5,6 mmol/L
- Elevated fasting plasma triglycerides 1,7 mmol/l
- Reduced high-density lipoprotein (HDL)-cholesterol < 1,0 mmol/l for men, < 1,3 mmol/l for women
- Elevated blood pressure, systolic blood pressure > 130 mm Hg and diastolic blood pressure > 85 mm Hg
- Without medicals for hypertension and hypercholesterolemia
- Morning or afternoon working time
Exclusion Criteria:
- Pregnant or plan to be become pregnant
- Lactating women
- Active smoking
- Diagnosis of diabetes
- Eating disorders
- Currently enrolled in a weight-management program
- Uncontrolled medical condition due to gastrointestinal, psychiatric, rheumatologic, oncologic, hematologic or endocrine diseases
- History of tumor
- History of serious cardiovascular or cerebrovascular diseases
- Taking medicines that may affect weight and appetite
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Early time-restricted eating with calorie restriction
Participants will follow calorie restriction with early day time-restricted eating protocol with three planned meals from 8:00 AM to 4:00 PM.
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Calorie restriction plan will be prepared for each participant.
After nutritional data collection at baseline, all participant will attend educational sessions about healthy diet and beneficial effects of time-restricted eating.
To estimate total energy needs, individuals' RMR will be measured from indirect calorimeter and multiplied by the appropriate factor of physical activity (from 1.3 to 1.6), and then a reduction of 200-500 kcal will be made.
Macronutrient composition of the diet will be approximately 45-55% of carbohydrate, 30-35% of fat, and 15-20% of protein.
30% of daily energy intake will be consumed by breakfast, 40% by lunch and 30% by dinner.
During posting participants will be allowed to consume only water and herbal infusions without added sugars or sweeteners.
Dietary intake of participants will be followed during the study using a 24-h recall.
Dietary data will be analysed using the Open Platform for Clinical Nutrition accessible through the website http://opkp.si/.
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Experimental: Mid-day time-restricted eating with calorie restriction
Participants will follow calorie restriction with mid-day time-restricted eating protocol with three planned meals from 1:00 PM to 9:00 PM.
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Calorie restriction plan will be prepared for each participant.
After nutritional data collection at baseline, all participant will attend educational sessions about healthy diet and beneficial effects of time-restricted eating.
To estimate total energy needs, individuals' RMR will be measured from indirect calorimeter and multiplied by the appropriate factor of physical activity (from 1.3 to 1.6), and then a reduction of 200-500 kcal will be made.
Macronutrient composition of the diet will be approximately 45-55% of carbohydrate, 30-35% of fat, and 15-20% of protein.
30% of daily energy intake will be consumed by breakfast, 40% by lunch and 30% by dinner.
During posting participants will be allowed to consume only water and herbal infusions without added sugars or sweeteners.
Dietary intake of participants will be followed during the study using a 24-h recall.
Dietary data will be analysed using the Open Platform for Clinical Nutrition accessible through the website http://opkp.si/.
|
Experimental: Daily calorie restriction
Participants will follow daily calorie restriction protocol with three planned meals from 8:00 AM to 9:00 PM.
|
Calorie restriction plan will be prepared for each participant.
After nutritional data collection at baseline, all participant will attend educational sessions about healthy diet and beneficial effects of time-restricted eating.
To estimate total energy needs, individuals' RMR will be measured from indirect calorimeter and multiplied by the appropriate factor of physical activity (from 1.3 to 1.6), and then a reduction of 200-500 kcal will be made.
Macronutrient composition of the diet will be approximately 45-55% of carbohydrate, 30-35% of fat, and 15-20% of protein.
30% of daily energy intake will be consumed by breakfast, 40% by lunch and 30% by dinner.
During posting participants will be allowed to consume only water and herbal infusions without added sugars or sweeteners.
Dietary intake of participants will be followed during the study using a 24-h recall.
Dietary data will be analysed using the Open Platform for Clinical Nutrition accessible through the website http://opkp.si/.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Body Weight
Time Frame: three months
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Changes in body weight (in kilograms) from baseline to week twelve measured with bioelectrical impedance analysis (BIA) Tanita MC-980MA
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three months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Body Fat
Time Frame: three months
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Changes in percentage of body fat from baseline to week twelve measured with bioelectrical impedance analysis (BIA) Tanita MC-980MA
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three months
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Changes in Visceral Fat Rating
Time Frame: three months
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Changes in visceral fat rating (index) from baseline to week twelve measured with bioelectrical impedance analysis (BIA) Tanita MC-980MA.
The range of the visceral fat rating (scale) is from 0 to 30.
Higher scores indicate excess visceral fat (a worse outcome).
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three months
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Changes in Muscle mass
Time Frame: three months
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Changes in muscle mass (in kilograms) from baseline to week twelve measured with bioelectrical impedance analysis (BIA) Tanita MC-980MA
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three months
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LDL Cholesterol
Time Frame: three months
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Changes in LDL cholesterol measured by biochemical analyzer Cobass
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three months
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Inflammation
Time Frame: three months
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Changes in C-reactive protein levels measured by biochemical analyzer Cobass
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three months
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Glucose levels
Time Frame: three months
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Changes in glucose levels measured by biochemical analyzer Cobass
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three months
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Resting metabolic rate
Time Frame: three months
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Changes in resting metabolic rate measured by (MedGem® Microlife, Medical Home Solutions, Inc., Golden, CO)
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three months
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ultrasound scan of abdomen
Time Frame: three months
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ultrasound scan of abdomen measured by Resona 7 Mindray
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three months
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ultrasound scan of carotid arteries
Time Frame: three months
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ultrasound scan of carotid arteries measured by Resona 7 Mindray
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three months
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Antioxidative potential
Time Frame: three months
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Antioxidative potential will be determined with DPPH radical measurement.
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three months
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Blood Pressure
Time Frame: three months
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Changes in systolic blood pressure measured by blood pressure device (Omron M3)
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three months
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Collaborators and Investigators
Sponsor
Publications and helpful links
General Publications
- Manoogian ENC, Chow LS, Taub PR, Laferrere B, Panda S. Time-restricted Eating for the Prevention and Management of Metabolic Diseases. Endocr Rev. 2022 Mar 9;43(2):405-436. doi: 10.1210/endrev/bnab027.
- Liu D, Huang Y, Huang C, Yang S, Wei X, Zhang P, Guo D, Lin J, Xu B, Li C, He H, He J, Liu S, Shi L, Xue Y, Zhang H. Calorie Restriction with or without Time-Restricted Eating in Weight Loss. N Engl J Med. 2022 Apr 21;386(16):1495-1504. doi: 10.1056/NEJMoa2114833.
- Swiatkiewicz I, Mila-Kierzenkowska C, Wozniak A, Szewczyk-Golec K, Nuszkiewicz J, Wroblewska J, Rajewski P, Eussen SJPM, Faerch K, Manoogian ENC, Panda S, Taub PR. Pilot Clinical Trial of Time-Restricted Eating in Patients with Metabolic Syndrome. Nutrients. 2021 Jan 24;13(2):346. doi: 10.3390/nu13020346.
- Zhang LM, Liu Z, Wang JQ, Li RQ, Ren JY, Gao X, Lv SS, Liang LY, Zhang F, Yin BW, Sun Y, Tian H, Zhu HC, Zhou YT, Ma YX. Randomized controlled trial for time-restricted eating in overweight and obese young adults. iScience. 2022 Aug 5;25(9):104870. doi: 10.1016/j.isci.2022.104870. eCollection 2022 Sep 16.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Pathologic Processes
- Glucose Metabolism Disorders
- Metabolic Diseases
- Disease Attributes
- Overnutrition
- Nutrition Disorders
- Body Weight
- Insulin Resistance
- Hyperinsulinism
- Lipid Metabolism Disorders
- Hyperlipidemias
- Dyslipidemias
- Hyperglycemia
- Inflammation
- Infections
- Communicable Diseases
- Metabolic Syndrome
- Overweight
- Hypercholesterolemia
Other Study ID Numbers
- TRE_Clinical
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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