Facilitation of Zolpidem (≥10 mg) Discontinuation Through Use of Ramelteon in Subjects With Chronic Insomnia
Public ClinicalTrials.gov record NCT00492232. 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
Randomized, Double Blind, Placebo-Controlled Study to Assess Whether the Administration of Ramelteon Could Facilitate the Discontinuation of Zolpidem (Ambien®) ≥10 mg Therapy in Subjects With Chronic Insomnia
Study identification
- NCT ID
- NCT00492232
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Lead sponsor
- Takeda
- Industry
- Enrollment
- 135 participants
Conditions and interventions
Conditions
Interventions
- Ramelteon and zolpidem Drug
- Placebo and zolpidem Drug
Drug
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
- Mar 31, 2007
- Primary completion
- Feb 29, 2008
- Completion
- Apr 30, 2008
- Last update posted
- Jul 19, 2010
2007 – 2008
United States locations
- U.S. sites
- 41
- U.S. states
- 20
- U.S. cities
- 41
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Hot Springs | Arkansas | — | — |
| Not listed | Anaheim | California | — | — |
| Not listed | Fountain Valley | California | — | — |
| Not listed | La Mesa | California | — | — |
| Not listed | Los Angeles | California | — | — |
| Not listed | Redlands | California | — | — |
| Not listed | San Diego | California | — | — |
| Not listed | San Francisco | California | — | — |
| Not listed | Santa Monica | California | — | — |
| Not listed | Denver | Colorado | — | — |
| Not listed | Clearwater | Florida | — | — |
| Not listed | Hollywood | Florida | — | — |
| Not listed | Kissimmee | Florida | — | — |
| Not listed | Naples | Florida | — | — |
| Not listed | Pembroke Pines | Florida | — | — |
| Not listed | Winter Park | Florida | — | — |
| Not listed | Atlanta | Georgia | — | — |
| Not listed | Austell | Georgia | — | — |
| Not listed | Boise | Idaho | — | — |
| Not listed | Louisville | Kentucky | — | — |
| Not listed | Metairie | Louisiana | — | — |
| Not listed | Chevy Chase | Maryland | — | — |
| Not listed | St Louis | Missouri | — | — |
| Not listed | Lincoln | Nebraska | — | — |
| Not listed | New York | New York | — | — |
| Not listed | West Seneca | New York | — | — |
| Not listed | Raleigh | North Carolina | — | — |
| Not listed | Wilmington | North Carolina | — | — |
| Not listed | Cincinnati | Ohio | — | — |
| Not listed | Toledo | Ohio | — | — |
| Not listed | Portland | Oregon | — | — |
| Not listed | Philadelphia | Pennsylvania | — | — |
| Not listed | Greer | South Carolina | — | — |
| Not listed | Fayetteville | Tennessee | — | — |
| Not listed | Austin | Texas | — | — |
| Not listed | Dallas | Texas | — | — |
| Not listed | Fort Worth | Texas | — | — |
| Not listed | Houston | Texas | — | — |
| Not listed | San Angelo | Texas | — | — |
| Not listed | San Antonio | Texas | — | — |
| Not listed | Salt Lake City | Utah | — | — |
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 NCT00492232, 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 Jul 19, 2010 · Synced Jul 22, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00492232 live on ClinicalTrials.gov.