# A Study to Compare Efficacy and Safety of Zolpidem Modified Release Formulation Versus Zolpidem in Insomnia Patients

> **NCT01181232** · PHASE4 · COMPLETED · sponsor: **Astellas Pharma Inc** · enrollment: 132 (actual)

## Conditions studied

- Sleep Initiation and Maintenance Disorders
- Primary Insomnia

## Interventions

- **DRUG:** Zolpidem MR
- **DRUG:** Zolpidem IR

## Key facts

- **NCT ID:** NCT01181232
- **Lead sponsor:** Astellas Pharma Inc
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2009-10
- **Primary completion:** 2011-04
- **Final completion:** 2011-04
- **Target enrollment:** 132 (ACTUAL)
- **Last updated:** 2014-09-10

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01181232

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01181232, "A Study to Compare Efficacy and Safety of Zolpidem Modified Release Formulation Versus Zolpidem in Insomnia Patients". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT01181232. Licensed CC0.

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