Clinical trials
Sleep Disorders, Circadian Rhythm clinical trials
Below are recruiting sleep disorders, circadian rhythm clinical trials, each written for real people, not researchers. We’re tracking 58 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07869901Recruiting
Sleep and light therapy for recovery in the ICU
This study tests whether helping ICU patients sleep better and keeping their body clock on a normal day-night rhythm can improve recovery after surgery.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07848594Recruiting
Temperature-regulating bed cover for sleep and health
This study tests whether a special temperature-regulating bed cover can improve sleep quality and reduce body inflammation, and how it affects gut health and your body's internal clock. You will use the bed cover and other devices at home, and provide blood and stool samples to see how your body responds.
Newton Center, MassachusettsAges 45 years+ - NCT07785960Enrolling by invitation
Sleep tracking with a special patch after night shifts
This trial tests a patch that you wear while sleeping after a night shift to see if it helps you recover and tracks your sleep. You will also wear a sleep tracker on your wrist.
Birmingham, West MidlandsAges 18 years+ - NCT06701396RecruitingPhase 3
Tasimelteon for delayed sleep phase disorder with genetic variant
This study tests a new sleep medication called tasimelteon compared to a placebo (inactive treatment) for people with a specific sleep disorder linked to a genetic change in the body's internal clock. If you have Delayed Sleep-Wake Phase Disorder and carry the CRY1Δ11 variant, this trial may help improve your sleep timing.
Çankaya, AnkaraAges 18–75 - NCT07438912Recruiting
Mind After Midnight: A study on late-night thinking and suicide risk
This study looks at how thinking changes late at night in people who have had suicidal thoughts in the past 6 months. The goal is to understand risk and find better ways to help.
Tucson, ArizonaAges 18–55 - NCT06129942Recruiting
Light therapy for Parkinson's disease
This trial tests whether regular light therapy can help people with Parkinson's disease. It is designed for patients whose symptoms are at a moderate stage and whose medication has been stable for a month or more.
Suzhou, JiangsuAges 50–80 - NCT07410936Recruiting
Self-Acupressure for Social Jet Lag in Female Students
This study tests whether a daily self-acupressure routine (gently pressing on specific points on your body) can help reduce social jet lag—the mismatch between your sleep schedule on school days versus free days—in female health-science students. It involves a 12-week home practice and tracking your sleep quality.
Niğde, MerkezAges 18–25 - NCT07329283Recruiting
Nighttime nutrition and sleep health study
This study looks at how eating at night affects your sleep and body clock. You will spend two nights in a sleep lab to test the effects of a small meal before bed.
Salt Lake City, UtahAges 18–35 - NCT07317349Recruiting
A study on how a daily time shift affects body rhythms in couples
This study looks at how a small, consistent delay in your daily schedule affects your body's internal clock. It involves you and your partner staying together in a lab for five days.
AarhusAges 23–45 - NCT07315074Recruiting
Esketamine for better sleep after surgery in postmenopausal women
This trial tests if a low dose of esketamine, given during anesthesia, can improve sleep quality after lower-limb fracture surgery in postmenopausal women. It aims to find a safe way to help you rest better after your operation.
Jingjiang, JiangsuAges 45 years+ - NCT07294781Recruiting
Circadian rhythm study in healthy adults during wakefulness
This study explores how your internal body clock and sense of time change during 36 hours of staying awake. You will stay in a lab and complete simple tasks to help researchers understand the link between circadian rhythms and time perception.
AarhusAges 23–45 - NCT07172607Recruiting
Can Avnace eZZe improve sleep?
This study tests a dietary supplement called Avnace eZZe to see if it helps improve sleep in adults with insomnia. You may be able to join if you have a diagnosis of insomnia and are not currently using sleep aids.
TaipeiAges 18 years+ - NCT06384742Recruiting
Sleep help for nurses working night shifts
This study tests a program to help nurses and nursing staff who work night shifts improve their sleep. It's a 6-month online program that may help you sleep better and feel more rested.
Corvallis, OregonAges 18–65 - NCT07138313Recruiting
How diet affects sleep and daily rhythms
This study looks at how what you eat affects your sleep and daily rhythms. Healthy young adults aged 18-32 are invited to join to help researchers understand this connection.
UppsalaAges 18–32 - NCT06832007Recruiting
Light therapy for recovery from opioid use disorder
This study tests whether a special light device used at home can improve recovery in people being treated for opioid use disorder. It looks at how light might help with sleep, mood, and overall well-being.
Birmingham, AlabamaAges 18–60 - NCT04966351Recruiting
Study countermeasures for disrupted body clock timing
This study tests ways to help your body’s internal clock stay in sync when your sleep timing is off. It’s looking for healthy adults with fairly regular sleep and certain lifestyle and location history.
Fort Collins, ColoradoAges 18–35 - NCT06743373Recruiting
Cannabis and sleep in young adults
This study looks at how cannabis affects sleep, daily rhythms, and sensitivity to light in young adults. You would either stop using cannabis for 4 weeks (if you are a regular user) or serve as a non-user control, to compare sleep patterns.
Pittsburgh, PennsylvaniaAges 18–25 - NCT05247125RecruitingPhase 4
Testing light or melatonin to help brain recovery after stroke
This study looks at whether changing your sleep timing using light therapy or melatonin can improve “brain rewiring” after an ischemic stroke. It mainly focuses on people who arrive very soon after stroke symptoms and who also meet specific safety and sleep/medication requirements.
Saint PetersburgAges 18–80 - NCT06669507Recruiting
Sleep clinic study on non-drug treatment options
This study looks at how people with certain sleep disorders respond to non-medication treatments. If you have trouble with your sleep-wake cycle and would like behavioral or lifestyle help instead of drugs, this trial might be for you.
TrondheimAges 18 years+ - NCT06422741Recruiting
Grape seed extract for cholesterol in night shift workers
This study tests whether a grape seed extract supplement can help lower LDL (bad) cholesterol in people who work rotating night shifts. It is looking for healthy adults with moderately high cholesterol who are not taking cholesterol medicine.
Reus, TarragonaAges 18 years+ - NCT06550115Recruiting
Night shift workers and their blood vessel & sugar health
This trial studies how sleep patterns affect blood vessel health and sugar control in long-term night shift workers. It may help find better ways to prevent heart problems and diabetes.
Fort Collins, ColoradoAges 18–65 - NCT06471374Recruiting
Circadian rhythm in delayed sleep-wake phase disorder
This study looks at how your body's internal clock works in people with delayed sleep-wake phase disorder, especially those living at high altitudes. It aims to understand the causes of this sleep problem and may help find better treatments.
Boulder, ColoradoAges 16–40 - NCT06336525Enrolling by invitation
Sleep health in rural Appalachia and Mississippi Delta
This study examines how sleep is linked to heart and metabolic health in people living in rural Appalachia and the Mississippi Delta. If you are already part of the RURAL Study, you may be able to join this sleep-focused part of the research.
Boston, MassachusettsAges 25–65 - NCT06226025RecruitingPhase 2
Melatonin for Bipolar Disorder in Night Owls
This trial tests whether giving melatonin at the right time can help people with bipolar disorder who are night owls improve their mood and sleep. You would take melatonin or a placebo each evening for a few weeks while tracking your symptoms on a phone app.
Ann Arbor, MichiganAges 18–60
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Common questions
- Are there clinical trials for sleep disorders, circadian rhythm?
- Yes. Clin2 currently lists 58 recruiting sleep disorders, circadian rhythm studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a sleep disorders, circadian rhythm trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a sleep disorders, circadian rhythm trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.