# Efficacy of Ramelteon on Speeding Up Sleep in Subjects With Delayed Sleep Phase Syndrome

> **NCT00593736** · PHASE2 · COMPLETED · sponsor: **Takeda** · enrollment: 132 (actual)

## Conditions studied

- Sleep Disorders, Circadian Rhythm

## Interventions

- **DRUG:** Ramelteon
- **DRUG:** Ramelteon
- **DRUG:** Ramelteon
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00593736
- **Lead sponsor:** Takeda
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2007-10
- **Primary completion:** 2008-05
- **Final completion:** 2008-05
- **Target enrollment:** 132 (ACTUAL)
- **Last updated:** 2012-02-28


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00593736

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00593736, "Efficacy of Ramelteon on Speeding Up Sleep in Subjects With Delayed Sleep Phase Syndrome". Retrieved via AI Analytics 2026-06-12 from https://api.ai-analytics.org/clinical/NCT00593736. Licensed CC0.

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