Clinical trials: Circadian Clock
Healthy Aging
Vestibular Stimulation, Exercise and Light Optimization for Circadian Clock Enhancement (Velocce)
This study investigates the effects of remote interventions based on the exposure to one or more zeitgebers (i.e. adapted physical activity alone or combined with bright light exposure, or galvanic vestibular stimulation)…
- Trial name
- velocce (NCT05030389)
- Testing
- Adapted Physical Activity (APA), Bright Light Exposure (BLE), Galvanic Vestibular Stimulation (GVS)
- Where
- France
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Université de Caen Normandie
Circadian Rhythms
Biomarkers for Peripheral Circadian Clocks in Humans
The purpose of this project is to improve our understanding of peripheral circadian rhythms in humans. Circadian clocks are present in most tissues of the body with importance for optimal physiological function, health, and…
- Trial name
- NCT06296823
- Testing
- Simulated jetlag protocol
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Boulder
Sleep Disorders, Circadian Rhythm
Circadian Phase Adjustment and Improvement of Metabolic Control in Night Shift Workers
EuRhythDia II is a multicenter, randomized, double-blind controlled study. The rationale of EuRhythdia is to explore the effects of 12 weeks of timed melatonin treatment on circadian rhythm, metabolic control and cardiovascular…
- Trial name
- NCT02108353
- Testing
- Melatonin 2mg
- Where
- 3 sites in Germany, Italy
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Universitätsklinikum Hamburg-Eppendorf
Diet, High-Fat, Circadian Rhythm
Food and Circadian Timing
The goals of this study are to uncover the influence of diet on the human circadian timing system. The protocol is a 46-day (28 outpatient days, 18 inpatient days over two 9 day visits) randomized cross-over study designed to…
- Trial name
- FACT (NCT04743271)
- Testing
- High-Fat Diet, Low-Fat Diet
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Cushing Syndrome, Adrenal Insufficiency
Clinical Study on Circadian Genes Dysregulation in Patients With Glucocorticoid Disorders
This is a multicentric, prospective, intervention study on circadian genes expression in peripheral blood mononuclear cells as biomarkers of circadian rhythm derangement in patients affected by alterations of endogenous…
- Conditions
- Cushing Syndrome, Adrenal Insufficiency, Cushing Disease, Addison Disease
- Trial name
- CHROnOS (NCT04374721)
- Testing
- circadian gene expression evaluation
- Where
- Italy
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Roma La Sapienza
Postoperative Delirium, General Anesthesia
The Disorder of Circadian Clock Gene and Early Cognitive Dysfunction After General Anesthesia
Postoperative cognitive dysfunction (POCD) is a common postoperative complication in patients aged 65 and over, which refers to cognitive function changes such as memory decline and attention deficit after anesthesia and surgery.
- Conditions
- Postoperative Delirium, General Anesthesia, Exosomes, Clock Gene
- Trial name
- NCT04421872
- Testing
- receiving general anesthesia
- Where
- China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Shengjing Hospital
Gingivitis, Circadian Rhythm Disruption
Circadian Clock Proteins in Gingival Crevicular Fluid of Individuals With and Without Circadian Rhythm Disruption
This prospective cross-sectional clinical study aims to investigate the relationship between circadian rhythm disruption and periodontal inflammation by evaluating circadian clock protein levels, inflammatory (IL-1beta) and…
- Conditions
- Gingivitis, Circadian Rhythm Disruption, Periodontal Inflammation, Circadian Rhythm Sleep Disorder, Shift Work Type
- Trial name
- Nursma-CIRC-HG (NCT07592052)
- Testing
- Standard Periodontal Treatment
- Where
- Turkey (Türkiye)
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- Inonu University
Health Behavior, Healthy
Effects of Fasting in the Bahá'í Faith
The aim of the study is to find out the effects a specific religious fast (i.e. Bahá'í fast) has on certain metabolic parameters, hydration, psyche and circadian clock.
- Trial name
- BF (NCT03443739)
- Testing
- Intermittent Fasting
- Where
- Germany
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Charite University, Berlin, Germany
Healthy
CIRcadian Rhythms and CortisoL. Effects on Substrate Metabolism and Clock Gene Expression and Functioning
The aim of this project is to study the effects of exogenous glucocorticoid exposure on substrate metabolism, energy expenditure and correlates of circadian rhythmicity in healthy adults.
- Trial name
- CIRCLE (NCT06035081)
- Testing
- Prednisolone
- Where
- Denmark
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Type2 Diabetes Mellitus, Cardiovascular Diseases
Behavioral Chronotype: Impact on Sleep and Metabolism
The purpose of this study is to examine how the timing of eating changes how the body makes and uses energy (metabolism). This study will also examine if metabolism changes with age.
- Trial name
- NCT03647306
- Testing
- Early Total Caloric Intake, Late Total Caloric Intake, Extended Overnight Fast
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Circadian Rhythm
Pistacho and Sleep Quality
The goal of this study is to evaluate the effect of pistachio (Pistacia vera L.) consumption on plasma melatonin, antioxidant capacity, and circadian rhythms in overweight young adults.
- Trial name
- PistaSleep (NCT07651605)
- Testing
- Pistacho supplementation
- Where
- Mexico
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Universidad Autonoma de Queretaro
Gingivitis, Periodontitis
Circadian Clock Gene Expression in Periodontal Disease
This observational study aims to investigate whether periodontal inflammation is associated with alterations in the expression of circadian clock-related genes and proteins in gingival tissues.
- Trial name
- PERIOCLOCK (NCT07452783)
- Testing
- Gingival Tissue Biopsy
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Inonu University
T1DM, Sleep Disorders, Circadian Rhythm
Influence of Circadian Clock on Hormonal, Metabolic, Neurocognitive Markers in Adolescents With and Without Diabetes
Type 1 diabetes mellitus (T1DM), makes its appearance during childhood and youth, but management implications last till late adulthood.
- Conditions
- T1DM, Sleep Disorders, Circadian Rhythm, ADHD, Memory Impairment
- Trial name
- NCT04054934
- Testing
- Reversed Circadian Rhythm, Normal Circadian Rhythm
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Assaf-Harofeh Medical Center
Skipping Breakfast, Circadian Rhythms
Effect of Skipping Breakfast on Metabolic Function
The purpose of this study is to test the hypothesis that the disruption of the "normal" (three meals a day) eating pattern and prolonged overnight fasting caused by skipping breakfast: i) alters the expression of specific clock…
- Trial name
- NCT02093572
- Testing
- 3 standard meals/day, 2 meals/day (omit breakfast)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Ovulation, Female Fertility
FemiClock: Non-invasive Tools Development (Salivary and Hair Progesterone) for Ovulation Detection in Heathy Women With Regular Menstrual Cycles Without Contraception.
Currently, the gold standard to confirm ovulation is measuring LH and/or progesterone in blood. However, because confirmation requires a blood sample, this approach is not suitable for epidemiological studies evaluating the…
- Conditions
- Ovulation, Female Fertility, Menstrual Cycle
- Trial name
- FemiClock (NCT07687823)
- Testing
- Diagnostic Test: Non-invasive ovulation biomarker assessment - Smartwatch, Diagnostic Test: Non-invasive ovulation biomarker assessment - Questionnaires, Hormonal blood assessment
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University Hospital, Strasbourg, France
Obesity, Sarcopenia
Chrono-restricted Diet and Physical Activity as a New Preventive Strategy for Sarcopenia in Postmenopausal Women With Obesity and Type 2 Diabetes
The aim of TIMEDIAB is to demonstrate that early TRE (eTRE) combined to late (afternoon) exercise will outperform eTRE combined to morning exercise on muscle function as primary endpoint, and glucose homeostasis as secondary…
- Conditions
- Obesity, Sarcopenia, Post Menopause, Type 2 Diabetes
- Trial name
- TIMEDIAB (NCT07075133)
- Testing
- Antidiabetic diet (control), eTRE diet, Physical activity in the morning
- Where
- France
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University Hospital, Toulouse
Bipolar Disorder, Schizophrenia
Sleep, Obesity and Mental Disease - Biological Markers for the Evaluation of Circadian Rhythmicity
Introduction 16.8% of the Danish adult population are obese (Body Mass Index> 30 kg / m2). Obesity increases the risk of lifestyle diseases such as type-2 diabetes and non-alcoholic fatty liver.
- Conditions
- Bipolar Disorder, Schizophrenia, Obesity, Circadian Rhythm Disorders
- Trial name
- SOMBER (NCT05413486)
- Testing
- Observational
- Where
- Denmark
- Volunteers
- 86 people, healthy volunteers welcome
- Sponsor
- Esbjerg Hospital - University Hospital of Southern Denmark
Metabolic Response to Dietary Modification
The CLOCK Study - A Human Dietary Intervention Study on Peripheral Circadian Clocks and Energy Metabolism
This human dietary intervention study with a cross-over design aims to investigate the effect of two different diurnal patterns of meal composition on peripheral circadian clocks and energy metabolism in healthy men.
- Trial name
- CLOCK (NCT02487576)
- Testing
- Carbohydrate-rich (HC), Fat-rich (HF)
- Where
- Germany
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- German Institute of Human Nutrition
Diet Habit
Time of Day Effect on Pesticides Metabolism and Toxicity
The CIRCA-CHEM study is a non-pharmacological, randomized cross-over health intervention trial studying the effect of the time of day on the metabolism and concomitant toxicity of exposures to pesticides found in a balanced…
- Trial name
- CIRCA-CHEM (NCT04177030)
- Testing
- Isopesticide dietary scheme
- Where
- Cyprus
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Cyprus University of Technology
Sleep Disorders, Circadian Rhythm
Effects of Vitamin B12 on the Body's Internal Clock
Circadian rhythms are 24-hour cycles that influence natural functions in the body such as heart rate, blood pressure, and body temperature. Circadian rhythms provide the body with an internal clock and affect sleep patterns.
- Trial name
- NCT00120484
- Testing
- Vitamin B12
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital