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Completed Phase 3 Interventional

Long-Term Efficacy of Ramelteon on Endocrine Function in Adult Subjects With Chronic Insomnia

ClinicalTrials.gov ID: NCT00656994

Public ClinicalTrials.gov record NCT00656994. 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 Jul 22, 2026, 2:01 PM 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 III Safety Study to Evaluate the Long-term Effects of TAK-375 on Endocrine Function in Adult Subjects With Chronic Insomnia

Study identification

NCT ID
NCT00656994
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Takeda
Industry
Enrollment
122 participants

Conditions and interventions

Conditions

Interventions

  • Ramelteon Drug
  • Placebo Drug

Drug

Eligibility (public fields only)

Age range
18 Years to 45 Years
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
Dec 31, 2002
Primary completion
Jun 30, 2004
Completion
Jun 30, 2004
Last update posted
Feb 27, 2012

2003 – 2004

United States locations

U.S. sites
29
U.S. states
16
U.S. cities
29
Facility City State ZIP Site status
Not listed Birmingham Alabama
Not listed Jasper Alabama
Not listed Mesa Arizona
Not listed Peoria Arizona
Not listed La Palma California
Not listed Los Angeles California
Not listed Riverside California
Not listed San Diego California
Not listed Denver Colorado
Not listed Fort Lauderdale Florida
Not listed West Palm Beach Florida
Not listed Austell Georgia
Not listed Roswell Georgia
Not listed Des Moines Iowa
Not listed Overland Park Kansas
Not listed Prairie Village Kansas
Not listed Florence Kentucky
Not listed Wentzville Missouri
Not listed Kenilworth New Jersey
Not listed South Plainfield New Jersey
Not listed Cincinnati Ohio
Not listed Columbus Ohio
Not listed Portland Oregon
Not listed Ninety Six South Carolina
Not listed Sioux Falls South Dakota
Not listed Austin Texas
Not listed Fort Worth Texas
Not listed San Angelo Texas
Not listed Wichita Falls 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 NCT00656994, 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 Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00656994 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →