A Study to Evaluate the Safety and Efficacy of TS-121 as an Adjunctive Treatment for Major Depressive Disorder
Public ClinicalTrials.gov record NCT03093025. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Multicenter, Randomized, Double-blind, Placebo-controlled Study of the Safety and Efficacy of TS-121 as an Adjunctive Treatment for Patients With Major Depressive Disorder With an Inadequate Response to Current Antidepressant Treatment
Study identification
- NCT ID
- NCT03093025
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- Taisho Pharmaceutical R&D Inc.
- Industry
- Enrollment
- 51 participants
Conditions and interventions
Conditions
Interventions
- TS-121 10 mg Drug
- TS-121 50 mg Drug
- Placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 2, 2017
- Primary completion
- Nov 7, 2018
- Completion
- Dec 3, 2018
- Last update posted
- Jul 13, 2020
2017 – 2018
United States locations
- U.S. sites
- 22
- U.S. states
- 14
- U.S. cities
- 21
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Woodland International Research Group | Little Rock | Arkansas | 72211 | — |
| Woodland Research Northwest | Rogers | Arkansas | 72758 | — |
| Collaborative Neuroscience Network | Garden Grove | California | 92845 | — |
| PAREXEL Early Phase Clinical Unit | Glendale | California | 91206 | — |
| Synergy East | Lemon Grove | California | 91945 | — |
| NRC Research Institute | Orange | California | 92868 | — |
| MCB Clinical Research Centers | Colorado Springs | Colorado | 80910 | — |
| Comprehensive Psychiatric Care | Norwich | Connecticut | 06360 | — |
| Compass Research | Orlando | Florida | 32806 | — |
| Atlanta Center for Medical Research | Atlanta | Georgia | 30331 | — |
| Rush University Medical Center | Chicago | Illinois | 60612 | — |
| Chicago Research Center | Chicago | Illinois | 60634 | — |
| Alexian Brothers Behavioral Health Hospital | Hoffman Estates | Illinois | 60169 | — |
| Boston Clinical Trials | Boston | Massachusetts | 02131 | — |
| Midwest Research Group - St. Charles Psychiatric Associates | Saint Charles | Missouri | 63304 | — |
| St. Louis Clinical Trials | St Louis | Missouri | 63141 | — |
| Hassman Research Institute | Berlin | New Jersey | 08009 | — |
| Global Medical Institutes | Princeton | New Jersey | 08540 | — |
| SPRI Clinical Trials | Brooklyn | New York | 11235 | — |
| Midwest Clinical Research Center | Dayton | Ohio | 45417 | — |
| IPS Research Company | Oklahoma City | Oklahoma | 73103 | — |
| Grayline Clinical Drug Trials | Wichita Falls | Texas | 76309 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03093025, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 13, 2020 · Synced Jun 26, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03093025 live on ClinicalTrials.gov.