Circadian Rhythm Sleep Disorder Clinical Trials

7 recruitingLast updated: July 25, 2026

There are 7 actively recruiting circadian rhythm sleep disorder clinical trials across 4 countries. Studies span Not Applicable. Top locations include Fort Collins, Colorado, United States, Corvallis, Oregon, United States, Istanbul, Turkey (Türkiye). Updated daily from ClinicalTrials.gov.


Circadian Rhythm Sleep Disorder Trials at a Glance

7 actively recruiting trials for circadian rhythm sleep disorder are listed on ClinicalTrialsFinder across 6 cities in 4 countries. The largest study group is Not Applicable with 6 trials, with the heaviest enrollment activity in Fort Collins, Corvallis, and Istanbul. Lead sponsors running circadian rhythm sleep disorder studies include Colorado State University, Fundació Eurecat, and Istanbul Gedik University.

Browse circadian rhythm sleep disorder trials by phase

Treatments under study

About Circadian Rhythm Sleep Disorder Clinical Trials

Looking for clinical trials for Circadian Rhythm Sleep Disorder? There are currently 1 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Circadian Rhythm Sleep Disorder trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Circadian Rhythm Sleep Disorder clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 17 of 7 trials

Recruiting

Circadian Rhythm and Health in Heavy Industry Shift Workers

Shift-work DisorderShift Work Type Circadian Rhythm Sleep Disorder
Istanbul Gedik University220 enrolled1 locationNCT07702344
Recruiting
Not Applicable

The Sleep Clinic Outcome and Practice Study

Insomnia DisorderCircadian Rhythm Sleep Disorder
St. Olavs Hospital3,400 enrolled1 locationNCT06669507
Recruiting
Not Applicable

Reestablishing Sleep and Circadian Alignment in Medical Intensive Care Unit (MICU) Patients Via a Mechanistic RCT of an Sleep Chronobundle

Critical IllnessSleep DeprivationCircadian Rhythm Sleep Disorder, Unspecified
Yale University160 enrolled2 locationsNCT05551325
Recruiting
Not Applicable

Impact of Circulating and Tissue-specific Lipids on Vascular Function and Insulin Sensitivity in Chronic Night Shift Workers

Metabolic DiseaseBlood PressureInsulin Sensitivity+1 more
Colorado State University50 enrolled1 locationNCT06550115
Recruiting
Not Applicable

Effect of a Grape Seed Proanthocyanidin Extract (GSPE) on LDL Cholesterol Levels in Rotating Night Shift Workers

Cardiovascular DiseasesCircadian Rhythm Sleep Disorder, Shift Work TypeCholesterol Level, High
Fundació Eurecat22 enrolled2 locationsNCT06422741
Recruiting
Not Applicable

Countermeasures to Circadian Misalignment

Metabolic DiseaseInsulin SensitivityCircadian Rhythm Sleep Disorder of Shift Work Type
Colorado State University32 enrolled1 locationNCT04966351
Recruiting
Not Applicable

Shift Worker Intervention for Sleep Health

Insomnia, PsychophysiologicalShift Work Type Circadian Rhythm Sleep Disorder
Oregon State University60 enrolled1 locationNCT06384742