# Safety and Efficacy of Ramelteon and Doxepin in Subjects With Chronic Insomnia

> **NCT00755495** · PHASE2 · COMPLETED · sponsor: **Takeda** · enrollment: 472 (actual)

## Conditions studied

- Sleep Initiation and Maintenance Disorders

## Interventions

- **DRUG:** Ramelteon and doxepin
- **DRUG:** Ramelteon
- **DRUG:** Doxepin
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00755495
- **Lead sponsor:** Takeda
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2006-07
- **Primary completion:** 2007-03
- **Final completion:** 2007-03
- **Target enrollment:** 472 (ACTUAL)
- **Last updated:** 2012-02-28


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00755495

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00755495, "Safety and Efficacy of Ramelteon and Doxepin in Subjects With Chronic Insomnia". Retrieved via AI Analytics 2026-06-10 from https://api.ai-analytics.org/clinical/NCT00755495. Licensed CC0.

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