ClinicalTrials.gov record
Efficacy of Ramelteon in Subjects With Chronic Insomnia
ClinicalTrials.gov ID: NCT00671086
Public ClinicalTrials.gov record NCT00671086. 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.
ClinicalTrials.gov public records Last synced May 5, 2026, 2:37 AM EDT
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 3, Open-label, Fixed-dose Study to Determine the Safety of Long-term Administration of TAK-375 in Subjects With Chronic Insomnia
Study identification
- NCT ID
- NCT00671086
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Takeda
- Industry
- Enrollment
- 1,213 participants
Conditions and interventions
Conditions
Interventions
- Ramelteon 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
- Jan 31, 2003
- Primary completion
- Aug 31, 2004
- Completion
- Aug 31, 2004
- Last update posted
- Feb 27, 2012
2003 – 2004
United States locations
- U.S. sites
- 122
- U.S. states
- 38
- U.S. cities
- 122
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Birmingham | Alabama | — | — |
| Not listed | Mobile | Alabama | — | — |
| Not listed | Phoenix | Arizona | — | — |
| Not listed | Tempe | Arizona | — | — |
| Not listed | Hot Springs | Arkansas | — | — |
| Not listed | Little Rock | Arkansas | — | — |
| Not listed | Anaheim | California | — | — |
| Not listed | Burbank | California | — | — |
| Not listed | Cerritos | California | — | — |
| Not listed | Irvine | California | — | — |
| Not listed | La Jolla | California | — | — |
| Not listed | La Mesa | California | — | — |
| Not listed | Lafayette | California | — | — |
| Not listed | Murrieta | California | — | — |
| Not listed | Newport Beach | California | — | — |
| Not listed | Northridge | California | — | — |
| Not listed | Redlands | California | — | — |
| Not listed | Riverside | California | — | — |
| Not listed | San Diego | California | — | — |
| Not listed | San Francisco | California | — | — |
| Not listed | Santa Monica | California | — | — |
| Not listed | Boulder | Colorado | — | — |
| Not listed | Colorado Springs | Colorado | — | — |
| Not listed | Denver | Colorado | — | — |
| Not listed | Pueblo | Colorado | — | — |
| Not listed | Wheat Ridge | Colorado | — | — |
| Not listed | Wilmington | Delaware | — | — |
| Not listed | Brandon | Florida | — | — |
| Not listed | Clearwater | Florida | — | — |
| Not listed | DeLand | Florida | — | — |
| Not listed | Edgewater | Florida | — | — |
| Not listed | Fort Lauderdale | Florida | — | — |
| Not listed | Largo | Florida | — | — |
| Not listed | Miami | Florida | — | — |
| Not listed | Naples | Florida | — | — |
| Not listed | New Smyrna Beach | Florida | — | — |
| Not listed | Ocala | Florida | — | — |
| Not listed | Safety Harbor | Florida | — | — |
| Not listed | St. Petersburg | Florida | — | — |
| Not listed | Stuart | Florida | — | — |
| Not listed | Tampa | Florida | — | — |
| Not listed | Winter Park | Florida | — | — |
| Not listed | Atlanta | Georgia | — | — |
| Not listed | Austell | Georgia | — | — |
| Not listed | Blairsville | Georgia | — | — |
| Not listed | Macon | Georgia | — | — |
| Not listed | Boise | Idaho | — | — |
| Not listed | Chicago | Illinois | — | — |
| Not listed | Elk Grove Village | Illinois | — | — |
| Not listed | Libertyville | Illinois | — | — |
| Not listed | Skokie | Illinois | — | — |
| Not listed | Evansville | Indiana | — | — |
| Not listed | Fort Wayne | Indiana | — | — |
| Not listed | Shawnee Mission | Kansas | — | — |
| Not listed | Florence | Kentucky | — | — |
| Not listed | Louisville | Kentucky | — | — |
| Not listed | Paducah | Kentucky | — | — |
| Not listed | New Orleans | Louisiana | — | — |
| Not listed | Shreveport | Louisiana | — | — |
| Not listed | Baltimore | Maryland | — | — |
| Not listed | Bryan Pogue | Maryland | — | — |
| Not listed | Chevy Chase | Maryland | — | — |
| Not listed | Frederick | Maryland | — | — |
| Not listed | Prince Frederick | Maryland | — | — |
| Not listed | Rockville | Maryland | — | — |
| Not listed | Newton | Massachusetts | — | — |
| Not listed | Ann Arbor | Michigan | — | — |
| Not listed | Troy | Michigan | — | — |
| Not listed | Minneapolis | Minnesota | — | — |
| Not listed | Hattiesburg | Mississippi | — | — |
| Not listed | City of Saint Peters | Missouri | — | — |
| Not listed | St Louis | Missouri | — | — |
| Not listed | Wentzville | Missouri | — | — |
| Not listed | Billings | Montana | — | — |
| Not listed | Lincoln | Nebraska | — | — |
| Not listed | Las Vegas | Nevada | — | — |
| Not listed | Clementon | New Jersey | — | — |
| Not listed | Lawrenceville | New Jersey | — | — |
| Not listed | Newark | New Jersey | — | — |
| Not listed | Toma River | New Jersey | — | — |
| Not listed | Brooklyn | New York | — | — |
| Not listed | Kingston | New York | — | — |
| Not listed | Lake Success | New York | — | — |
| Not listed | Rochester | New York | — | — |
| Not listed | White Plains | New York | — | — |
| Not listed | Williamsville | New York | — | — |
| Not listed | Cary | North Carolina | — | — |
| Not listed | Raleigh | North Carolina | — | — |
| Not listed | Salisbury | North Carolina | — | — |
| Not listed | Wilmington | North Carolina | — | — |
| Not listed | Winston-Salem | North Carolina | — | — |
| Not listed | Beachwood | Ohio | — | — |
| Not listed | Cincinnati | Ohio | — | — |
| Not listed | Columbus | Ohio | — | — |
| Not listed | Dublin | Ohio | — | — |
| Not listed | Toledo | Ohio | — | — |
| Not listed | Oklahoma City | Oklahoma | — | — |
| Not listed | Eugene | Oregon | — | — |
| Not listed | Portland | Oregon | — | — |
| Not listed | Bala-Cynwyd | Pennsylvania | — | — |
| Not listed | Duncansville | Pennsylvania | — | — |
| Not listed | Jenkintown | Pennsylvania | — | — |
| Not listed | Lafayette Hill | Pennsylvania | — | — |
| Not listed | Philadelphia | Pennsylvania | — | — |
| Not listed | Warwick | Rhode Island | — | — |
| Not listed | Anderson | South Carolina | — | — |
| Not listed | Columbia | South Carolina | — | — |
| Not listed | Greer | South Carolina | — | — |
| Not listed | Bristol | Tennessee | — | — |
| Not listed | Cordova | Tennessee | — | — |
| Not listed | Austin | Texas | — | — |
| Not listed | Houston | Texas | — | — |
| Not listed | Plano | Texas | — | — |
| Not listed | San Antonio | Texas | — | — |
| Not listed | Salt Lake City | Utah | — | — |
| Not listed | Charlottesville | Virginia | — | — |
| Not listed | Fairfax | Virginia | — | — |
| Not listed | Oakland | Washington | — | — |
| Not listed | Seattle | Washington | — | — |
| Not listed | Tacoma | Washington | — | — |
| Not listed | Milwaukee | Wisconsin | — | — |
| Not listed | Wauwatosa | Wisconsin | — | — |
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 NCT00671086, 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 27, 2012 · Synced May 5, 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 NCT00671086 live on ClinicalTrials.gov.