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NCT00671567 · ClinicalTrials.gov registry record · Phase 3

Ramelteon in Adults With Chronic Insomnia

A Phase 3 study, sponsored by Takeda.

Completed
Registry status
Phase 3
Development phase
848
Enrollment target

NCT00671567: Completed Phase 3 study, sponsored by Takeda.

NCT00671567 is a Phase 3 study that has completed, run by Takeda. The registered enrollment target is 848 participants, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (10% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00671567, a Phase 3 study, has completed, sponsored by Takeda.

COMPLETED
Registry status
Phase 3
Development phase
848 participants
Enrollment target

Study Summary

The purpose of this study is to determine the safety and efficacy of Ramelteon, once daily (QD), in adult subjects with chronic insomnia.

Interventions

  • DRUG Placebo
  • DRUG Ramelteon

Trial Details

FieldValue
Enrollment Target 848 participants
Start Date 2002-12
Est. Completion 2003-09
Phase Phase 3
Takeda

408 total trials

What the finished NCT00671567 record still lists

NCT00671567 is an interventional study that assigns participants to a tested intervention. The registered 848 participants enrollment target is mid-sized for trials with a published cap, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (10% higher).

The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.

NCT00671567 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00671567 about?

NCT00671567 is a clinical study titled "Ramelteon in Adults With Chronic Insomnia". The purpose of this study is to determine the safety and efficacy of Ramelteon, once daily (QD), in adult subjects with chronic insomnia.

What is the current status of trial NCT00671567?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 848 participants. The study started on 2002-12. Estimated completion is 2003-09.

What interventions are being tested in trial NCT00671567?

The interventions under investigation include: Placebo (DRUG), Ramelteon (DRUG).

Who is sponsoring clinical trial NCT00671567?

This trial is sponsored by Takeda, which has 408 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00671567's enrollment target sits among peer trials

848 389th of 2000 higher than 1,611 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00671567, the US trial registry maintained by the National Library of Medicine. NCT00671567 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.