# A Long-Term Safety Study of Org 50081 (Esmirtazapine) in Elderly Outpatients With Chronic Primary Insomnia (176005/P05697/MK-8265-001)

> **NCT00561574** · PHASE3 · COMPLETED · sponsor: **Merck Sharp & Dohme LLC** · enrollment: 259 (actual)

## Conditions studied

- Sleep Initiation and Maintenance Disorder; Elderly
- Mental Disorder
- Dyssomnias
- Sleep Disorders
- Sleep Disorder, Intrinsic

## Interventions

- **DRUG:** Esmirtazapine

## Key facts

- **NCT ID:** NCT00561574
- **Lead sponsor:** Merck Sharp & Dohme LLC
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2008-01-09
- **Primary completion:** 2010-02-14
- **Final completion:** 2010-02-14
- **Target enrollment:** 259 (ACTUAL)
- **Last updated:** 2021-01-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00561574

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00561574, "A Long-Term Safety Study of Org 50081 (Esmirtazapine) in Elderly Outpatients With Chronic Primary Insomnia (176005/P05697/MK-8265-001)". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT00561574. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*