Delayed Sleep Timing in Teens Study
Public ClinicalTrials.gov record NCT03806296. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Delayed Sleep Phase and Risk for Adolescent Substance Use
Study identification
- NCT ID
- NCT03806296
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- University of Pittsburgh
- Other
- Enrollment
- 142 participants
Conditions and interventions
Conditions
Interventions
- Decrease evening blue light Other
- Increase morning bright light Other
- Monitor sleep, mood, and substance use Behavioral
- Sleep scheduling Behavioral
Other · Behavioral
Eligibility (public fields only)
- Age range
- 16 Years to 19 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 2, 2018
- Primary completion
- Mar 21, 2024
- Completion
- Nov 29, 2024
- Last update posted
- Aug 25, 2025
2018 – 2024
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Western Psychiatric Institute and Clinic | Pittsburgh | Pennsylvania | 15213 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03806296, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 25, 2025 · Synced May 18, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03806296 live on ClinicalTrials.gov.