A Trial of the Safety and Efficacy of SEP-363856 in the Treatment of Adults With Major Depressive Disorder

Purpose

This is a Phase 2/3, Multicenter, Randomized, Double-blind, Placebo-controlled Trial of the Safety and Efficacy of Flexible Doses of SEP-363856 as Adjunctive Therapy in the Treatment of Adults with Major Depressive Disorder (MDD)

Condition

  • Major Depressive Disorder

Eligibility

Eligible Ages
Between 18 Years and 65 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Male and Female subjects between 18-65 years of age, with a primary diagnosis of major depressive disorder and in a current major depressive episode - Current major depressive episode must be at least 8 weeks and no longer than 2 years in duration - History of an inadequate response to at least 1 and no more than 3 antidepressant treatments in the current major depressive episode

Exclusion Criteria

  • Subjects who report an inadequate response to more than 3 antidepressant treatments in the current episode - Subjects with a lifetime history of schizophrenia spectrum or other psychotic disorder, bipolar or related disorder, major or mild neurocognitive disorder, neurodevelopmental disorder of greater than mild severity or of a severity that impacts the participant's ability to consent/ follow study directions/ or otherwise safely participate in the study, borderline or antisocial personality disorder. - Subjects with a current diagnosis of post-traumatic stress disorder, obsessive compulsive disorder, panic disorder, or eating disorder (including anorexia nervosa or bulimia). - Sexually active subjects, who could become pregnant, not agreeing to practice 2 sponsor approved methods of birth control or remain abstinent during the trial and for 30 days (females) or 90 days (males) after last dose of study drug.

Study Design

Phase
Phase 2/Phase 3
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
SEP-363856 & ADT (Antidepressant Therapy)
  • Drug: SEP-363856
    Tablet
Placebo Comparator
Placebo & ADT (Antidepressant Therapy)
  • Other: Placebo
    Placebo

Recruiting Locations

More Details

Status
Recruiting
Sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.

Study Contact

Otsuka Call Center Call Center
844-687-8522
OtsukaUS@druginfo.com