Efficacy of Ramelteon on Speeding Up Sleep in Subjects With Delayed Sleep Phase Syndrome
Public ClinicalTrials.gov record NCT00593736. 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
A Randomized, Double-Blind, Placebo-Controlled, Parallel, Proof of Concept Study to Evaluate the Effectiveness of Ramelteon to Advance the Timing of Sleep in Individuals With Delayed Sleep Phase Syndrome (DSPS)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to evaluate the ability of ramelteon, once daily (QD), to advance the timing of sleep in individuals with delayed sleep phase syndrome.
Study identification
- NCT ID
- NCT00593736
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 132 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 2007 (Type not available)
- Primary completion
- May 2008 (Actual)
- Completion
- May 2008 (Actual)
- Last update posted
- Feb 28, 2012
2007 – 2008
United States locations
- U.S. sites
- 42
- U.S. states
- 23
- U.S. cities
- 42
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Birmingham | Alabama | — | — |
| Not listed | Tucson | Arizona | — | — |
| Not listed | Hot Springs | Arkansas | — | — |
| Not listed | Little Rock | Arkansas | — | — |
| Not listed | Fountain Valley | California | — | — |
| Not listed | Glendale | California | — | — |
| Not listed | Los Angeles | California | — | — |
| Not listed | San Diego | California | — | — |
| Not listed | Santa Monica | California | — | — |
| Not listed | Tustin | California | — | — |
| Not listed | Colorado Springs | Colorado | — | — |
| Not listed | Hallandale Bch | Florida | — | — |
| Not listed | Naples | Florida | — | — |
| Not listed | Pembroke Pines | Florida | — | — |
| Not listed | South Miami | Florida | — | — |
| Not listed | Spring Hill | Florida | — | — |
| Not listed | St. Petersburg | Florida | — | — |
| Not listed | Winter Park | Florida | — | — |
| Not listed | Atlanta | Georgia | — | — |
| Not listed | Gainesville | Georgia | — | — |
| Not listed | Macon | Georgia | — | — |
| Not listed | Chicago | Illinois | — | — |
| Not listed | Danville | Indiana | — | — |
| Not listed | Overland Park | Kansas | — | — |
| Not listed | Topeka | Kansas | — | — |
| Not listed | Crestview Hills | Kentucky | — | — |
| Not listed | Paducah | Kentucky | — | — |
| Not listed | Chevy Chase | Maryland | — | — |
| Not listed | Newton | Massachusetts | — | — |
| Not listed | Hattiesburg | Mississippi | — | — |
| Not listed | Lincoln | Nebraska | — | — |
| Not listed | Las Vegas | Nevada | — | — |
| Not listed | New York | New York | — | — |
| Not listed | Raleigh | North Carolina | — | — |
| Not listed | Salisbury | North Carolina | — | — |
| Not listed | Cincinnati | Ohio | — | — |
| Not listed | Dublin | Ohio | — | — |
| Not listed | Toledo | Ohio | — | — |
| Not listed | Salem | Oregon | — | — |
| Not listed | Clarks Summit | Pennsylvania | — | — |
| Not listed | Columbia | South Carolina | — | — |
| Not listed | Austin | Texas | — | — |
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 NCT00593736, 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 Feb 28, 2012 · Synced Oct 19, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00593736 live on ClinicalTrials.gov.