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NCT00671398 · ClinicalTrials.gov registry record · Phase 3

Efficacy of Ramelteon on Transient Insomnia in Healthy Adults

A Phase 3 study, sponsored by Takeda.

Completed
Registry status
Phase 3
Development phase
289
Enrollment target

NCT00671398: Completed Phase 3 study, sponsored by Takeda.

NCT00671398 is a Phase 3 study that has completed, run by Takeda. The registered enrollment target is 289 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (63% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00671398, a Phase 3 study, has completed, sponsored by Takeda.

COMPLETED
Registry status
Phase 3
Development phase
289 participants
Enrollment target

Study Summary

The purpose of this study is to evaluate the safety and efficacy of Ramelteon, once daily (QD), in healthy subjects within a sleep lab.

Interventions

  • DRUG Placebo
  • DRUG Ramelteon

Trial Details

FieldValue
Enrollment Target 289 participants
Start Date 2002-12
Est. Completion 2003-05
Phase Phase 3
Takeda

408 total trials

What the finished NCT00671398 record still lists

NCT00671398 is an interventional study that assigns participants to a tested intervention. The registered 289 participants enrollment target is mid-sized for trials with a published cap, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (63% lower).

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

NCT00671398 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00671398 about?

NCT00671398 is a clinical study titled "Efficacy of Ramelteon on Transient Insomnia in Healthy Adults". The purpose of this study is to evaluate the safety and efficacy of Ramelteon, once daily (QD), in healthy subjects within a sleep lab.

What is the current status of trial NCT00671398?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 289 participants. The study started on 2002-12. Estimated completion is 2003-05.

What interventions are being tested in trial NCT00671398?

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

Who is sponsoring clinical trial NCT00671398?

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

How this trial's enrollment target compares

Where NCT00671398's enrollment target sits among peer trials

289 1173rd of 2000 higher than 827 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 NCT00671398, the US trial registry maintained by the National Library of Medicine. NCT00671398 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.