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Pathophysiology of Circadian Rhythm Delayed Sleep Wake Phase Disorder

University of Colorado, Boulder · with Northwestern University, National Heart, Lung, and Blood Institute (NHLBI) · NCT06471374

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Opens the official ClinicalTrials.gov record, with the study team’s contacts. Bored Studies doesn’t enroll anyone.

Key facts

Compensation
Not posted. Ask the study team before screening.
Who can join
Ages 16–40 · All sexes
Healthy volunteers
Accepted
Study type
Interventional · Not applicable
Target enrollment
66
US sites recruiting
2
Study start
April 2, 2024
Record last updated
June 17, 2026

Status re-checked against ClinicalTrials.gov within the last 12 hours.

What the study is about

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.

Being studied: Circadian rhythm assessment; Light sensitivity assessment

Conditions: Delayed Sleep Phase Syndrome; Delayed Sleep Phase

Eligibility criteria

Copied from the official record. The study team makes the final decision at screening.

Show full criteria

Inclusion Criteria

  • Delayed sleep wake phase disorder diagnosis
  • Altitude history: currently residing at Denver altitude or higher
  • BMI normal to moderately overweight

Exclusion Criteria

  • Recent medical condition
  • Psychiatric disorder
  • Sleep disorder
  • Medication use

Recruiting US locations

  • University of Colorado

    Boulder, CO 80303

    Site contact: Kenneth Wright, PhD · 303-735-1923 · sleep.study@colorado.edu

  • Northwestern University

    Chicago, IL 60611

    Site contact: Phyllis Zee, MD, PhD · (312) 695-7950

Study contacts (from the official record)

  • Kenneth Wright, PhD · 303-735-1923 · sleep.study@colorado.edu
All sleep studies in Colorado →
Pathophysiology of Circadian Rhythm Delayed Sleep Wake Phase Disorder (NCT06471374) | Bored Studies