Clinical trials: Circadian Clocks
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
Circadian System
Beneficial Effects of Daytime Light Exposure and Physical Activity on the Human Circadian Clock and Sleep
This study is to examine the circadian phase-shifting effects of daylight and physical activity (primary endpoint: shift in dim-light melatonin onset (DLMO)) as well as their effects on sleep the ensuing night and analyzes how…
- Trial name
- DayCiS (NCT05513547)
- Testing
- LE protocol 1: exposure to artificial light, LE protocol 2: natural daylight, LE protocol 3: natural daylight with reduced short-wavelength proportions
- Where
- Switzerland
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
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
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
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
Chronobiology Disorders, Circadian Rhythm Disorders
Light Sensitization Study
Circadian rhythm disorders are a class of sleep disorders characterized by misalignment between the timing of sleep and the timing of rhythms driven by the biological clock.
- Conditions
- Chronobiology Disorders, Circadian Rhythm Disorders, Sleep Disorders, Circadian Rhythm
- Trial name
- NCT01327040
- Testing
- light exposure
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
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
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
Metabolic Health
ImpaCt Of Shiftwork on METabolic Flexibility and Skeletal Muscle Clocks
The purpose of this study is to determine the impact of real-world shiftwork on metabolic flexibility.
- Trial name
- COMET (NCT05820490)
- Testing
- Whole Room Calorimeter, Mixed-Meal Tolerance Test (MMTT), Core Body Temperature
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- AdventHealth Translational Research Institute
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
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
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
Healthy, Healthy Aging
The Physiological Chronobiome Modified by Age, Sex and Under Evoked Conditions
The investigators piloted the characterization of the human chronobiome. Now, this line of research is extended to explore physiological chronobiome modulated by sex, age and under evoked conditions.
- Trial name
- NCT04225442
- Testing
- Fatty meal to challenge the physiological chronobiome in healthy young and old
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
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
Circadian Rhythm, Diabetes
Study of Circadian Clock Properties in Healthy Subjects, Obese and Type 2 Diabetic Patients.
The investigators aimed to characterize human circadian clockwork in healthy individuals in comparison to obese and type 2 diabetic subjects, employing the noninvasive experimental approach allowing the study of circadian profile…
- Conditions
- Circadian Rhythm, Diabetes, Obesity
- Trial name
- NCT02384148
- Testing
- Circadian rhythm measurement, Skin biopsy
- Where
- Switzerland
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- University Hospital, Geneva
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
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
Chronodisruption, Shift Work Disorder
Impact of Shift Work on Glucose and Lipid Metabolism of Hospital Workers
The aim of the study is to evaluate circadian glucose, activity and dietary rhythms, as well as metabolic and cardiovascular risk associated with night shift work, sleep quality and well-being in a cohort of hospital staff…
- Conditions
- Chronodisruption, Shift Work Disorder, Glucose and Lipid Metabolism
- Trial name
- METASHIFT (NCT07426211)
- Where
- 2 sites in Germany
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Olga Ramich (formerly Pivovarova)
Postpartum Women, Diabetes, Gestational
Circadian Clocks and Eating Patterns (Cohort)
For women of reproductive age, the overall postpartum weight retention (weight gain between pregnancies) plays a significant role in long-term obesity.
- Trial name
- NCT04642534
- Where
- Switzerland
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- University of Lausanne Hospitals