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Clinical trialNCT06471374RecruitingInterventional

Pathophysiology of Circadian Rhythm Delayed Sleep Wake Phase Disorder

SponsorUniversity of Colorado, BoulderEnrollment66Delayed Sleep PhaseDelayed Sleep Phase Syndrome
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The goal of this study is to understand factors that contribute to delayed sleep wake phase disorder (DSWPD). The investigators will examine whether patients with DSWPD exhibit alterations in circadian rhythms and sensitivity to light compared to healthy controls. The investigators will also test a new method of predicting circadian rhythms form a blood sample.
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

2 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • University of Colorado

    Boulder, Colorado, United States

    Recruiting
  • Northwestern University

    Chicago, Illinois, United States

    Kathryn Reid, PhDPhyllis Zee, MD, PhD
    Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
2 Apr 2024
Primary completion
31 Jul 2028
Completion
31 Jul 2028
Last update posted
17 Jun 2026
Registered enrollment
66
Registry id
NCT06471374
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.