Clinical trials: Delayed Sleep Phase
Circadian Rhythms, Time Perception
The Effect of a Continuous 1-Hour Time Delay on Circadian Rhythms
The purpose of this study is to investigate whether the experience of a daily time delay can affect our internal circadian rhythm.
- Conditions
- Circadian Rhythms, Time Perception, Sleep
- Trial name
- NCT07317349
- Testing
- Fixed daily routine, Daily time delay
- Where
- Denmark
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Circadian Rhythm Sleep Disorder
Circadian Rhythms and Sleep in Familial DSPS and ASPS
The purpose of this study is to determine the properties of circadian rhythms and sleep propensity in familial advanced and delayed sleep phase syndrome (DSPS).
- Trial name
- NCT00246454
- Where
- United States
- Volunteers
- 156 people
- Sponsor
- Northwestern University
Sleep Disorders, Circadian Rhythm, Circadian Rhythm Disorders
Validation of Circadian Biomarkers in Patients With Sleep Disorders
Current methods for assessing circadian timing require sampling over hours (or even up to a day) while the patient is in controlled conditions.
- Conditions
- Sleep Disorders, Circadian Rhythm, Circadian Rhythm Disorders, Circadian Rhythm Sleep Disorder, Advanced Sleep Phase Syndrome (ASPS)
- Trial name
- NCT04690504
- Testing
- dim light melatonin onset (DLMO)
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Brigham and Women's Hospital
Healthy Controls, Delayed Sleep Phase
Circadian Phase Assessments at Home
An estimated 23 million Americans, including adolescents and the elderly, suffer from circadian rhythm sleep disorders, such as delayed sleep phase disorder, advanced sleep phase disorder and winter depression.
- Trial name
- NCT01487252
- Testing
- At home saliva sampling
- Where
- United States
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- Rush University Medical Center
Narcolepsy
A Study of HBS-201 (Pitolisant Delayed-release)
The purpose of this study is to assess the tolerability of HBS-201 when starting at a therapeutic dose in adult participants with narcolepsy.
- Trial name
- NCT07051252
- Testing
- HBS-201
- Where
- 15 sites in United States
- Volunteers
- 46 people
- Sponsor
- Harmony Biosciences Management, Inc.
Circadian Rhythm Sleep Disorder, Delayed Sleep Phase, Sleep
The Effects of a Blue Monochromatic Light Intervention on Evening-type Individuals' Sleep and Circadian Rhythms
The present project is aimed to contribute with new knowledge concerning how light conditions in the physical environment can be manipulated to alter the sleep and circadian rhythms of individuals with an evening-type circadian…
- Trial name
- NCT03758768
- Testing
- Blue light exposure, Full spectrum light exposure
- Where
- Norway
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- University of Bergen
Shift-Work Sleep Disorder, Shift Work Type Circadian Rhythm Sleep Disorder
Breath Biomarkers for Sleep Loss and Circadian Timing
Insufficient sleep has both health and safety risks, but currently there are no quick, accurate and inexpensive ways to measure sleep deficiency.
- Conditions
- Shift-Work Sleep Disorder, Shift Work Type Circadian Rhythm Sleep Disorder, Sleep Disorders, Circadian Rhythm, Sleep Disorders, Intrinsic
- Trial name
- NCT03980340
- Testing
- Short Nap Intervention, No Nap Intervention
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Bipolar Disorder, Delayed Sleep-Wake Phase Disorder
Correcting Circadian Rhythms to Breakthrough in Bipolar Disorder
The purpose of this study is to test whether a dietary supplement (low-dose melatonin) commonly used to treat night owls, administered in conjunction with a behavioral sleep intervention, will help to shift the brain clock…
- Trial name
- NCT06226025
- Testing
- Melatonin, Behavioral sleep intervention, Behavioral sleep control
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Leslie Swanson
Sleep Disorder Circadian Rhythm, Delayed Sleep Phase Type
SleepHelsinki! CIRCADIAN SLEEP REGULATION IN ADOLESCENCE
Adolescence associates with alterations in sleep-wake organization, such as later circadian phase preference. Simultaneously external pressures, such as evening-driven social activities increase.
- Trial name
- SleepHel (NCT02964598)
- Testing
- Gamified intervention, Sleep coaching, Bright light
- Where
- Finland
- Volunteers
- 270 people, healthy volunteers welcome
- Sponsor
- University of Helsinki
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
Delayed Sleep Phase Syndrome
Randomized Controlled Trial on the Treatment Effects of Melatonin and Light Therapy on Delayed Sleep Phase Syndrome
In this study the investigators will examine the effects of melatonin and light therapy on delayed sleep phase syndrome in adolescents 16 up to 20 years old.
- Trial name
- NCT00834886
- Testing
- Melatonin, Bright light
- Where
- Norway
- Volunteers
- 40 people
- Sponsor
- University of Bergen
Mental Disorder in Adolescence, Insomnia
Promoting Sleep and Physical Activity Among Adolescent Psychiatric Patients
Mental health disorders pose a significant burden on adolescent populations globally, often accompanied by sleep disturbances. Emerging evidence suggests that addressing sleep issues can improve mental health outcomes, while…
- Conditions
- Mental Disorder in Adolescence, Insomnia, Delayed Sleep-Wake Phase Disorder
- Trial name
- SLEEPAC (NCT06407258)
- Testing
- SLEEPAC
- Where
- 2 sites in Switzerland
- Volunteers
- 140 people
- Sponsor
- Christin Lang
Major Depressive Disorder, Bipolar Depression
Chronotherapy Randomized Controlled Trial
Chronotherapy is a term that describes therapeutic alterations of sleep wake cycles. Different variations of sleep deprivation, set sleep wake schedules, and types of light therapy have demonstrated efficacy in rapidly treating…
- Conditions
- Major Depressive Disorder, Bipolar Depression, Suicidal Ideation
- Trial name
- NCT02176824
- Testing
- Total Sleep deprivation, Sleep Phase Advance, and Bright Light Therapy, Partial Sleep deprivation, Sleep Phase Delay, and Low amber light., Treatment as usual
- Where
- United States
- Volunteers
- 13 people
- Sponsor
- Medical University of South Carolina
Delayed Sleep Phase Syndrome
Are Patients Suffering From DSPS Show Compromising in Everyday Functions and Abilities Before Handling the Disorder?
The purpose of this study is to determine whether the known treatment for DSPS also improve the cognitive ability and mood of the patients.
- Trial name
- NCT02962037
- Testing
- Melatonin and light therapy
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Lilach Kemer
Developmental Delay Disorders, Chromosome Deletion
Treatment Strategies for Children With Smith-Magenis Syndrome
This study will examine the effect of bright light or melatonin treatment on sleep in children with Smith-Magenis syndrome (SMS), a genetic disorder characterized by certain physical, behavioral and developmental features.
- Conditions
- Developmental Delay Disorders, Chromosome Deletion, Mental Retardation, Sleep Disorders, Circadian Rhythm
- Trial name
- NCT00506259
- Testing
- dTR Melatonin (NIH CC PDS), Phototherapy (Bright Light), Melatonin CR
- Where
- United States
- Volunteers
- 23 people
- Sponsor
- National Human Genome Research Institute (NHGRI)
Idiopathic Scoliosis, Eveningness
Effect of Bright Light Therapy on Idiopathic Scoliosis
This trial aims to investigate whether morning bright light therapy can reduce the progression rate of idiopathic scoliosis in children and potentially prevent its de novo development.
- Conditions
- Idiopathic Scoliosis, Eveningness, Delayed Sleep Phase
- Trial name
- NCT07424703
- Testing
- Bright Light Therapy, Sleep Hygiene Education
- Where
- China
- Volunteers
- 120 people
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Delayed Sleep Phase Syndrome
Synchronization and Desynchronization Between Circadian Rhythms in Patients With Delayed Sleep Phase Syndrome (DSPS)
This study's first aim is to widen the knowledge of the characteristics of delayed sleep phase disorder (DSPS) by focusing on the circadian rhythms of appetite regulation factors and their phase relations to the cycles of…
- Trial name
- NCT00282061
- Testing
- Melatonin
- Where
- Israel
- Sponsor
- Sheba Medical Center
Delayed Sleep Phase Syndrome
The Clinical Utility of Measuring the Circadian Clock in Treatment of Delayed Sleep-Wake Phase Disorder
This study will test whether measuring the circadian clock during treatment of delayed sleep-wake phase disorder results in greater improvements in sleep compared to estimating the circadian clock.
- Trial name
- NCT03715465
- Testing
- Melatonin 0.5 MG, Dim Light Melatonin Onset (salivary)
- Where
- United States
- Volunteers
- 44 people
- Sponsor
- University of Michigan
Delayed Sleep Phase Syndrome
Does Cognitive Behaviour Therapy (CBT) Improve the Effect of Light Therapy
Delayed sleep phase syndrome (DSPS) is the most common of the circadian rhythm sleep disorders (CRSD). A person with DSPS have sufficient sleep quality, but their circadian clock is delayed compared to the normal 24-h period.
- Trial name
- NCT01419938
- Testing
- Light therapy and Cognitive behaviour therapy, Light therapy
- Where
- Sweden
- Volunteers
- 57 people
- Sponsor
- Uppsala University
Insomnia, Delayed Sleep Phase Disorder
Blue-blocking Glasses for Sleep Disorders in Child and Adolescent Psychiatry
Sleep problems and regulation difficulties are frequent in the child and adolescent psychiatry population. Insomnia and delayed sleep-wake phase disorders (DSPWD) are highly prevalent, and risk factors for developing more severe…
- Conditions
- Insomnia, Delayed Sleep Phase Disorder, Hyperarousal, Transdiagnostic Psychopathology
- Trial name
- BATCAT-pilot (NCT07433491)
- Testing
- Blue-blocking glasses (BB-glasses) or real darkness from 9 p.m. to desired wake-up time + night mode setting on mobile phone, Control
- Where
- 2 sites in Norway
- Volunteers
- 40 people
- Sponsor
- Helse Fonna