Clinical trials: Energy Restriction
Pediatric Obesity
Appetite Response to Exercise- Versus Energy Restriction-induced Energy Deficit in Adolescents With Obesity.
The aim of the present study is to compare the effect of iso-energetic energy deficits induced by exercise or dietary restriction on energy intake and appetite feelings in adolescents with obesity
- Trial name
- IDEX1 (NCT04739189)
- Testing
- Con : control condition without exercise / rest condition, Def-EX : Condition with an exercise-induced energy deficit, Def-EI : Condition with an energy-restriction energy deficit
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University Hospital, Clermont-Ferrand
Relative Energy Deficiency in Sport
Impact Loading Effect on Bone Biomarkers in Female Runners
This study is a randomized, cross-over intervention study that will evaluate the effect of brief, high-impact loading exercises on biomarkers of bone metabolism in energy-restricted female runners.
- Trial name
- NCT05341700
- Testing
- Impact Load Exercises, No Impact Load Exercises
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Virginia Polytechnic Institute and State University
Osteoarthritis, Knee, Hypertension
The Clinical Impact of Diet on Medical Conditions Treated Within Bundled Payment Models: a Pilot Study
Diet interventions (e.g., low-energy diets) are recommended as a treatment for obesity, obese patients with osteoarthritis, hypertension (HTN), and type 2 diabetes (T2D).
- Conditions
- Osteoarthritis, Knee, Hypertension, Type 2 Diabetes, Obesity
- Trial name
- NCT05735873
- Testing
- Low-energy diet
- Volunteers
- healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Obesity and Overweight
Intermittent Carbohydrate Restriction in Cardiometabolic Health
Metabolic conditions, such as heart disease, type 2 diabetes, and metabolic syndrome, are among the leading causes of disability and mortality worldwide.
- Trial name
- NCT06684834
- Testing
- 5:2 carbohydrate restriction, Early time-restricted carbohydrate intake
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Bath
Digestibility
Effects of Time-restricted Eating on Nutrient Absorption in Healthy Adults
This 2-period, crossover, controlled-feeding trial will investigate the effects of early time-restricted eating (8am-2pm), compared to a control eating timeframe (8am-8pm), on energy and macronutrient digestibility, the thermic…
- Trial name
- NCT04877262
- Testing
- weight maintenance diet (WMD)
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Florida State University
Obesity, Overweight
DAWL (Dairy and Weight Loss) Study
Objectives Taking a 'whole foods' approach, we will investigate (i) whether consumption of isocaloric diets containing ≥4 vs. ≤1 servings of dairy products per day for 16 weeks results in greater body fat loss in…
- Trial name
- DAWL (NCT01337895)
- Testing
- Low dairy, High dairy
- Where
- Canada
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Guelph
Healthy, Cognition
Reliability of Standardized IQ Testing Under Modafinil, Racetam-Class Compounds, Sleep Restriction and Daily Activity
This study examined whether standardized IQ test scores in healthy adults aged 18-35 are stable measures of cognitive ability and evaluated whether standardized cognitive-test performance and response-initiation measures vary…
- Conditions
- Healthy, Cognition, Sleep Deprivation
- Trial name
- NCT07852130
- Testing
- Modafinil, Oxiracetam, Pramiracetam
- Where
- United Kingdom
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Abdulraheem Mohamed Gouda
Individuals at Risk of Developing Diabetes
Daily vs Intermittent Restriction of Energy: Controlled Trial to Reduce Diabetes Risk (DIRECT)
In this randomized controlled trial, the investigators will compare the long term effectiveness of intermittent fasting (IF) versus an energy matched moderate calorie restriction (CR) over 18 months, and relative to a non-active…
- Trial name
- NCT03689608
- Testing
- Intermittent Fasting (IF), Daily Restriction (DR), standard care (SC)
- Where
- Australia
- Volunteers
- 209 people, healthy volunteers welcome
- Sponsor
- University of Adelaide
Obesity, Fasting
The Effect of Intermittent Energy Restriction Using Meal Replacements in Overweight Chinese Subjects
Background and Aims: The "5:2 diet", a form of intermittent energy restriction, has been popularized in Europe and USA. The rationale behind this approach is that two days of dieting is potentially more achievable, yet long…
- Trial name
- NCT02606669
- Testing
- Meal Replacement
- Where
- Singapore
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Khoo Teck Puat Hospital
Obesity
Factors Affecting Caloric Regulation in Human Feeding
This study will test the hypothesis that reducing the energy density of the diet by incorporating more water-rich foods will result in: 1) greater weight loss and weight maintenance; 2) greater diet satisfaction and satiety; and…
- Trial name
- NCT00108784
- Testing
- Reduced-energy-density diet
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Obesity, PreDiabetes
Network Meta-analysis of Intermittent Fasting and Cardiometabolic Risk
Intermittent fasting is a method of restricting calories over a defined period of time and includes regimens such as whole-day fasting, alternate-day fasting, and time-restricted feeding.
- Conditions
- Obesity, PreDiabetes, Diabetes, Hypertension
- Trial name
- NCT05309057
- Testing
- Intermittent Fasting
- Where
- 2 sites in Canada
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University of Toronto
Healthy Adult Male
Effect of Early Time-Restricted Eating on Appetite, Appetite-Regulatory Hormones and Energy Intake
This randomised crossover study's primary aim is to investigate the effect of short-term fasting (eTRE) on subjective appetite and appetite-regulatory hormones (i.e., leptin, adiponectin, total glucagon-like peptide-1 (GLP-1)…
- Trial name
- NCT07500792
- Testing
- Normal diet, early Time-Restricted Eating (eTRE), instantaneous visual analogue scale (iVAS)
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Glasgow
Healthy
Importance of the GH/IGF-1 Axis for Human Substrate and Energy Metabolism During Calorie Restriction
This study will investigate whether growth hormone is modulated by the enzyme SIRT1 and by that is stimulating lipolysis on expense of IGF-I production.
- Trial name
- NCT01209429
- Testing
- GH hormone infusion, 42 hour fast, 12 hour fast
- Where
- Denmark
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Aging
CALERIE (Washington University): Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy
This study is one of three CALERIE trials that test the hypothesis that a reduced calorie, nutritionally sound diet increases the length of life and prevents some age-related chronic diseases such as cancer, diabetes, and…
- Trial name
- NCT00099138
- Testing
- Caloric Restriction (CR), Exercise
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- National Institute on Aging (NIA)
Aging
CALERIE (Tufts) - Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy
This study is one of three CALERIE trials that test the hypothesis that a reduced calorie, nutritionally sound diet increases the length of life and prevents some age-related chronic diseases such as cancer, diabetes, and…
- Trial name
- NCT00099099
- Testing
- Caloric Restriction (CR)
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- National Institute on Aging (NIA)
Obesity, Insulin Sensitivity/Resistance
Energy -Sensing Metabolites in Caloric Restriction
General integrated goal of the coordinated project: To elucidate the role of succinate and other metabolites derived from the intestinal microbiota such as Short Chain Fatty Acids (SCFAs), as energy sensing metabolites in the…
- Conditions
- Obesity, Insulin Sensitivity/Resistance, Diabetes Type 2
- Trial name
- NCT05031572
- Testing
- dietary intervention
- Where
- Spain
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Institut Investigacio Sanitaria Pere Virgili
Weight Loss, Time Restricted Feeding
TRE: Microbiome, Metabolic Health and Bone
In the Time-Restricted Eating: Microbiome and Bone (TREMBO) study, the primary goal is to determine the effect of time-restricted eating with caloric restriction compared to caloric restriction alone on bone health, as well as…
- Conditions
- Weight Loss, Time Restricted Feeding, Bone Loss
- Trial name
- TREMBO (NCT05548517)
- Testing
- Time Restricted Eating (TRE), Calorie Restriction
- Where
- United States
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Rutgers, The State University of New Jersey
Obesity
Sleep Timing on Energy Intake and Energy Expenditure
Studies in healthy young adults have shown that abnormal and undesirable physiological changes are a result of chronic sleep curtailment, with implications on inflammatory status, blood glucose regulation, circulating free fatty…
- Trial name
- NCT05096585
- Testing
- Delayed bedtime sleep restriction, Early wake sleep restriction
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Obesity
Sleep Restriction and Energy Expenditure
Each 4-day period will follow the same protocol. Basically, for the entire study, we will prepare all of the subject's food and will require him or her to eat all of the food that we give at the times we tell them to eat.
- Trial name
- NCT01751581
- Testing
- Short Sleep, Habitual sleep
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- St. Luke's-Roosevelt Hospital Center
Calorie Deficiency, Fasting
Effects of Calorie Restriction and Cold Stimuli on Health-related Indicators, Cognitive and Motor Functions
The goal of this clinical trial was to identify if duration of acute calorie restriction (CR)/fasting or combination CR with cold stimuli have any effects on mental and physical health-related markers, and to clarify if different…
- Conditions
- Calorie Deficiency, Fasting, Cold Exposure
- Trial name
- NCT05545943
- Testing
- 2-days of zero calorie restriction and whole-body cold-water immersion, 6-days of calorie restriction, 2-days of zero calorie restriction without whole-body cold-water immersion
- Where
- Lithuania
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Lithuanian Sports University