Clinical trials: Chronotype
Diabetes Mellitus, Type 1
Sleep and Chronotype in Children With Type 1 Diabetes
Type 1 diabetes is the most common metabolic disorder in children and adolescents. Sleep is important for prognosis and several sleep parameters are related to metabolic control.
- Trial name
- NCT04978662
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Marmara University
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
Conditionally Healthy Persons, Persons With a High Body Mass Index
Medico-ecological Monitoring ((CSM, MCTQ, SPAQ, PSQI, HRV, Spirometry; Anthropometry, BP) of the Different Population Groups (Students, Schoolchildren, Volunteers) in North Caucasus
Observational Clinical Trial of the chronotype, sleep quality, seasonal pattern, behavioral time preferences, the functional state of the body's regulatory systems and respiratory systems in individuals of different age groups…
- Trial name
- NCT04851080
- Testing
- Heart Rate Variability, Spirometry, Testing of psycho-physiological functions using four questionnaires
- Where
- Russia
- Volunteers
- 370 people, healthy volunteers welcome
- Sponsor
- Vladikavkaz Scientific Center of the Russian Academy of Sciences
Attention Deficit Disorder With Hyperactivity, Sleep Disorders, Circadian Rhythm
Sleep Disorders, Chronotype, and Functional Impairment in the Restrictive ADHD Phenotype
This study aims to explore chronotype and sleep disturbances in ADHD subtypes and their relation to functional impairment.
- Conditions
- Attention Deficit Disorder With Hyperactivity, Sleep Disorders, Circadian Rhythm, Quality of Life, Morningness Eveningness Preference
- Trial name
- NCT06970418
- Where
- Turkey (Türkiye)
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- Dr. Behcet Uz Children's Hospital
Central Obesity, Time Restricted Eating
Impact of Chronotype-Based Time-Restricted Eating on Visceral Fat and Metabolic Health in Physically Inactive Adults With Central Obesity
Time-restricted eating (TRE) has gained attention as a promising dietary strategy for enhancing body composition and metabolic health.
- Trial name
- NCT07062315
- Testing
- Chronotype-matched time-restricted eating, Chronotype-unmatched time-restricted eating
- Where
- China
- Volunteers
- 90 people
- Sponsor
- Chinese University of Hong Kong
Exercise Induced Hypoalgesia, Circadian Rhythm
Pain Perception and Exercise-Induced Hypoalgesia Across Circadian Rhythms
The goal of this randomized crossover clinical trial is to investigate whether exercise-induced hypoalgesia (EIH) is influenced by circadian rhythm in healthy adults aged 18-40 years.
- Conditions
- Exercise Induced Hypoalgesia, Circadian Rhythm, Pain Perception, Healthy Participants
- Trial name
- NCT07290465
- Testing
- High-Intensity Functional Training (HIFT), Supervised Deep Breathing
- Where
- Turkey (Türkiye)
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Medipol University
Chronotype, Fibromyalgia Syndrome
Evaluation of Chronotype and Central Sensitization in Patients With Fibromyalgia Syndrome
The aim of study is to examine the chronotype preferences of patients with fibromyalgia syndrome and the relationship between central sensitization and chronotype, and to examine its relationship with pain intensity, disability…
- Trial name
- NCT06197087
- Testing
- cross-sectional observational survey study
- Where
- Turkey (Türkiye)
- Volunteers
- 500 people
- Sponsor
- Oğuzhan Kandemir
Insomnia, ADHD
Efficacy of Cognitive Behavioural Therapy for Insomnia and Bright Light Therapy in Adolescents With ADHD, Insomnia, and Evening Chronotype
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterised by persistent inattention, hyperactivity, and impulsivity.
- Conditions
- Insomnia, ADHD, Eveningness, Chronotype
- Trial name
- NCT07767617
- Testing
- CBT-I with Bright Light Group
- Where
- Hong Kong
- Volunteers
- 150 people
- Sponsor
- The University of Hong Kong
Sleep Deprivation, Athletic Performance
Strategic Daytime Napping Enhances Agility and Lowers Perceived Exertion But Does Not Improve Fatigue Resistance in Adolescent Soccer Players
Background Daytime napping is increasingly incorporated into athletic recovery routines to manage sleepiness and support alertness.
- Conditions
- Sleep Deprivation, Athletic Performance, Fatigue
- Trial name
- NCT07314645
- Testing
- Pro Agility Test, Repeated-Sprint Ability (RSA) Test, Rate of Perceived Exertion (RPE)
- Where
- Turkey (Türkiye)
- Volunteers
- 16 people
- Sponsor
- Uludag University
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
Chronotype, Circadian Rhythm
Chronotype Alignment and Time Perception
People differ in chronotype - whether they function best in the morning ("larks") or the evening ("owls"). This study asks whether the match or mismatch between a person's chronotype and the time of day at which they are tested…
- Conditions
- Chronotype, Circadian Rhythm, Sleep, Time Perception
- Trial name
- NCT07677111
- Testing
- Morning test session (about 08:00), Evening test session (about 22:00)
- Where
- Hong Kong
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Chronotype, Exercise
The Effect of Circadian Rhythm on Physical Performance in Healthy Male Individuals
Little is known about optimizing the timing of exercise periods to maximize the health benefits of exercise. Furthermore, exercise is a potent modulator of skeletal muscle metabolism and it is clear that skeletal muscle has a…
- Trial name
- NCT06311539
- Testing
- Theraband Strengthening Exercise Program
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Istanbul Bilgi University
Myofascial Pain Syndrome, Diffuse
Chronotype and Myofascial Pain Syndrome,
The aim of this study is to examine chronotype preferences in myofascial pain syndrome and to investigate its relationship with pain severity, disability and quality of life.
- Trial name
- NCT06707675
- Testing
- Assessment
- Volunteers
- 500 people
- Sponsor
- Afyonkarahisar Health Sciences University
Sleep, Depression
Behavioral and Sleep Hygiene Education With Mindfulness Intervention to Improve Sleep Regularity in Adolescents
Sleep plays a fundamental role in both mental- and physical-health, with good sleep health including adequate duration and quality, appropriate timing, regularity, and absence of sleep disorders.
- Conditions
- Sleep, Depression, Anxiety, Chronotype
- Trial name
- NCT06028997
- Testing
- Behavioral and Sleep Hygiene Education with Mindfulness Intervention
- Where
- 2 sites in Iceland
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Solveig Magnusdottir
Shift Work Disorder, Shift Work Type Circadian Rhythm Sleep Disorder
Circadian Rhythm and Health in Heavy Industry Shift Workers
Shift work can disrupt the body's circadian rhythm, which may negatively affect sleep, musculoskeletal health, and quality of life.
- Trial name
- NCT07702344
- Testing
- Questionnaire-Based Assessment
- Where
- Turkey (Türkiye)
- Volunteers
- 226 people
- Sponsor
- Istanbul Gedik University
Premature Ejaculation
Chronotype and Premature Ejaculation
Chronotype (or circadian preference) has previously been shown to be associated with sexual attitudes and behaviors and is an important factor affecting sexual satisfaction.
- Trial name
- NCT04841395
- Testing
- Intravaginal ejaculatory latency time (IELT), Arabic Index of Premature Ejaculation (AIPE), Morningness-Eveningness Questionnaire (MEQ)
- Where
- Turkey (Türkiye)
- Volunteers
- 217 people, healthy volunteers welcome
- Sponsor
- Bursa Yuksek Ihtisas Training and Research Hospital
Women, Urinary Incontinence (UI)
Examination of the Effect of Nocturia on Pelvic Floor Symptoms, Sleep Parameters and Quality of Life in Women With Urinary Incontinence
Urinary incontinence (UI), a common issue, is the involuntary leakage of urine that negatively affects individuals socially, physically, and psychologically, leading to a decreased quality of life.
- Conditions
- Women, Urinary Incontinence (UI), Nocturia
- Trial name
- NCT06866834
- Where
- Turkey (Türkiye)
- Volunteers
- 102 people
- Sponsor
- Gulhane School of Medicine
Circadian Rhythm Disorders
Melatonin Agonist for Shift-time Workers.
The study of the relationship between sleep pattern, attention performance, and heart rate variability among night workers.
- Trial name
- NCT07382843
- Testing
- Ramelteon
- Where
- Taiwan
- Volunteers
- 61 people
- Sponsor
- Tri-Service General Hospital (TSGH)
Obesity
The Effect of Circadian Timing Program on Obesity Management and Sleep Quality
This study, it was aimed to examine the effect of circadian timing program created for obese individuals with evening chronotype on obesity management and sleep quality.
- Trial name
- NCT04665336
- Testing
- Circadian Timing Program, Sleep Hygiene Training
- Where
- Turkey (Türkiye)
- Volunteers
- 38 people
- Sponsor
- Kocaeli University
Chemotherapy-Induced Amenorrhea
Metabolism, Circadian Rhythms and Ovarian Function
Chemotherapy for cancer, due to its gonadotoxicity, can lead to impaired female fertility, resulting in the occurrence of transient or prolonged chemo-induced amenorrhea (CIA).
- Trial name
- METAB-OV (NCT05007834)
- Where
- France
- Volunteers
- 50 people
- Sponsor
- University Hospital, Lille