# Early Phase 2 Clinical Study of TS-142 in Patients with Insomnia Disorder

> **NCT04573725** · PHASE2 · COMPLETED · sponsor: **Taisho Pharmaceutical Co., Ltd.** · enrollment: 24 (actual)

## Conditions studied

- Insomnia Disorder

## Interventions

- **DRUG:** TS-142
- **DRUG:** Dose-matched Placebo to TS-142

## Key facts

- **NCT ID:** NCT04573725
- **Lead sponsor:** Taisho Pharmaceutical Co., Ltd.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-07-07
- **Primary completion:** 2019-02-13
- **Final completion:** 2019-02-13
- **Target enrollment:** 24 (ACTUAL)
- **Last updated:** 2025-02-28


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04573725

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04573725, "Early Phase 2 Clinical Study of TS-142 in Patients with Insomnia Disorder". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT04573725. Licensed CC0.

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