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Completed Phase 3 Interventional Results available

A Study of Flexible-dose Brexpiprazole as Adjunctive Therapy in the Treatment of Adults With Major Depressive Disorder, the Delphinus Trial

ClinicalTrials.gov ID: NCT01727726

Public ClinicalTrials.gov record NCT01727726. 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.

ClinicalTrials.gov public records Last synced Oct 25, 2026, 7:31 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Multicenter, Randomized, Double-blind, Placebo and Active Comparator Controlled Trial of Flexible-dose Brexpiprazole (OPC-34712) as Adjunctive Therapy in the Treatment of Adults With Major Depressive Disorder, the Delphinus Trial

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

To compare the efficacy of brexpiprazole (flexible dose) with placebo as adjunctive therapy to an assigned open label antidepressant therapy (ADT) in the proposed subject population with MDD.

Study identification

NCT ID
NCT01727726
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Enrollment
2,182 participants

Conditions and interventions

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
Dec 2012 (Type not available)
Primary completion
Oct 17, 2016 (Actual)
Completion
Nov 10, 2016 (Actual)
Last update posted
Jun 8, 2018

2012 – 2016

United States locations

U.S. sites
44
U.S. states
20
U.S. cities
42
Facility City State ZIP Site status
Not listed Birmingham Alabama — —
Not listed Phoenix Arizona — —
Not listed Little Rock Arkansas — —
Not listed Bellflower California — —
Not listed Beverly Hills California — —
Not listed Costa Mesa California 92626 —
Not listed Glendale California — —
Not listed Irvine California — —
Not listed Redlands California — —
Not listed San Diego California — —
Not listed Upland California — —
Not listed Gainesville Florida — —
Not listed Jacksonville Florida — —
Not listed Jacksonville Beach Florida — —
Not listed Leesburg Florida — —
Not listed Melbourne Florida — —
Not listed Miami Florida 33015 —
Not listed Miami Florida 33145 —
Not listed Oakland Park Florida — —
Not listed Orange City Florida — —
Not listed Orlando Florida — —
Not listed Decatur Georgia — —
Not listed Lake Charles Louisiana — —
Not listed Baltimore Maryland — —
Not listed Belmont Massachusetts — —
Not listed Roslindale Massachusetts — —
Not listed Watertown Massachusetts 02472 —
Not listed Creve Coeur Missouri — —
Not listed Lebanon New Hampshire — —
Not listed New York New York 10003 —
Not listed New York New York 10168 —
Not listed Columbus Ohio — —
Not listed Dayton Ohio — —
Not listed Edmond Oklahoma 73013 —
Not listed Portland Oregon — —
Not listed Salem Oregon — —
Not listed Dallas Texas — —
Not listed Murray Utah — —
Not listed Herndon Virginia — —
Not listed Richmond Virginia — —
Not listed Bellevue Washington — —
Not listed Kirkland Washington — —
Not listed Seattle Washington — —
Not listed Brown Deer Wisconsin — —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 32 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01727726, 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 Jun 8, 2018 · Synced Oct 25, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01727726 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →