| Not Yet Recruiting | Body Clocks - Coordination of Peripheral and Central Oscillators NCT07459764 | Stanford University | — |
| Recruiting | Feasibility of Light Therapy in the Pediatric Intensive Care Unit (ICU) NCT07384585 | Laura Beth Kalvas | N/A |
| Recruiting | Nighttime Synchrony of Your Nutrition and Circadian Health NCT07329283 | University of Utah | N/A |
| Not Yet Recruiting | Evaluating the Efficacy and Safety of PROSOMNIA Sleep Therapy™ in Patients With Sleep Deprivation and Chronic NCT06644573 | Nyree Penn | Phase 1 |
| Active Not Recruiting | Circadian Health Regulation and Optimization for Rejuvenation Outcomes NCT07203196 | Salk Institute for Biological Studies | N/A |
| Recruiting | The Effects of Naturalistic Light on Post Stroke Complications Related Brain Areas in Stroke Patients During A NCT06922409 | Rigshospitalet, Denmark | N/A |
| Recruiting | NIA_Improving Function and Well-being by Improving Patient Memory: Transdiagnostic Sleep and Circadian Treatme NCT05986604 | University of California, Berkeley | N/A |
| Unknown | Compromised Sleep and Circadian Health After Critical Illness: From Diagnosis to Prediction (CHRONOCRIT) NCT05995132 | Institut de Recerca Biomèdica de Lleida | — |
| Active Not Recruiting | Maintaining Behavior Change: An Evaluation of a Habit-based Sleep Health Intervention NCT05167695 | University of California, Berkeley | N/A |
| Completed | Metabolic Effects of Natural Office Light in Type 2 Diabetes NCT05263232 | Maastricht University | N/A |
| Completed | Maintaining Behavior Change: A 6-year Follow-up of Adolescent 'Night-owls' NCT05098782 | University of California, Berkeley | — |
| Completed | Mini-treatment Experiments to Clarify How to Assist People to Habit Formation NCT05070143 | University of California, Berkeley | N/A |
| Completed | Implementing and Sustaining a Sleep Treatment to Improve Community Mental Health Part 2: Train-the-Trainer NCT05805657 | University of California, Berkeley | N/A |
| Completed | Personalized Integrated Chronotherapy for Perinatal Depression NCT04364646 | Rhode Island Hospital | N/A |
| Completed | Timing of Sodium Intake and Nocturnal Sodium Excretion and Blood Pressure in Obese African Americans NCT04021355 | University of Alabama at Birmingham | N/A |
| Completed | Improving Well-being by Improving Memory for Treatment for Sleep and Circadian Dysfunction NCT04373538 | University of California, Berkeley | N/A |
| Completed | Implementing and Sustaining a Sleep Treatment to Improve Community Mental Part 1: Implementation Health Outcom NCT04154631 | University of California, Berkeley | N/A |
| Completed | The Impact of Artificial Sunlight on Human Sleep and Circadian Rhythms NCT03636360 | VA Palo Alto Health Care System | N/A |
| Completed | Impact of Blueberry Consumption on Gastrointestinal Health NCT03934177 | University of Nebraska Lincoln | N/A |
| Completed | A Pilot Test of Mood and Circadian Rhythm Mechanisms Driving Binge Eating NCT03680989 | University of Wyoming | N/A |
| Active Not Recruiting | Body Weight, Sleep, and Heart Health NCT03388788 | Oregon Health and Science University | — |
| Completed | Morning Light Treatment to Improve Glucose Metabolism NCT03188263 | Northwestern University | N/A |
| Completed | Circadian Rhythms in Patients With IBD or Celiac Disease Upon Diagnosis and Medical Follow-up NCT03662646 | Tel-Aviv Sourasky Medical Center | — |
| Completed | Effect of Sleep on the Recovery of Patients Admitted to the ICU NCT04111900 | Rush University Medical Center | N/A |
| Completed | Feasibility of Bright Light Therapy on Fatigue, Sleep and Circadian Activity Rhythms in Lung Cancer Survivors NCT02954809 | State University of New York at Buffalo | N/A |
| Unknown | The Microbiome and Resilience to Sleep and Circadian Disruption NCT03747367 | University of Colorado, Boulder | N/A |
| Completed | Development of Countermeasures Against Adverse Metabolic Effects of Shift Work NCT02291952 | Brigham and Women's Hospital | N/A |
| Completed | Home Sleep and Circadian Phase: Mediators of Diabetes Risk NCT01786564 | Northwestern University | — |
| Recruiting | OCEAN Registry: Obesity and Clock for Elegant Aging Registry NCT02674230 | Chang Gung Memorial Hospital | — |
| Terminated | Cardiometabolic Risk of Shiftwork NCT01264913 | University of Chicago | — |
| Withdrawn | Treating Sleep/Wake Cycle Disturbances in Basal Ganglia Disorders With Ramelteon NCT00907595 | Massachusetts General Hospital | N/A |
| Completed | Zolpidem CR and Hospitalized Patients With Dementia NCT00814502 | Massachusetts General Hospital | N/A |
| Completed | Efficacy of Ramelteon on Insomnia Symptoms Associated With Jet Lag in Healthy Adult Volunteers NCT00492011 | Takeda | Phase 4 |