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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.

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-500538-27-00
Acronym
382-201-00001
Enrollment
256
Registered
2023-02-22
Start date
2023-03-30
Completion date
2025-11-05
Last updated
2025-12-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adjunctive therapy to antidepressants for the treatment of major depressive disorder (MDD) in adults.

Brief summary

Change from the end of Phase A (Week 8 visit) to the end of Phase B (Week 14 visit) in the MADRS total score.

Detailed description

Standard safety variables to be examined in this trial will include AEs, physical examinations (including body weight and waist circumference), vital signs (blood pressure, heart rate, and body temperature), 12-lead ECGs, and clinical laboratory assessments (hematology, serum chemistry, urinalysis, prolactin, glycosylated hemoglobin, and coagulation parameters)., In addition to the standard safety variables, other safety variables including C-SSRS, SAS, AIMS, BARS, CSFQ, and PSQI will also be evaluated.

Interventions

DRUGVENLAFAXINE
DRUGESCITALOPRAM
DRUGSERTRALINE
DRUGDULOXETINE
DRUGFLUOXETINE
DRUGPAROXETINE

Sponsors

Otsuka Pharmaceutical Development And Commercialization Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Change from the end of Phase A (Week 8 visit) to the end of Phase B (Week 14 visit) in the MADRS total score.

Secondary

MeasureTime frame
Standard safety variables to be examined in this trial will include AEs, physical examinations (including body weight and waist circumference), vital signs (blood pressure, heart rate, and body temperature), 12-lead ECGs, and clinical laboratory assessments (hematology, serum chemistry, urinalysis, prolactin, glycosylated hemoglobin, and coagulation parameters)., In addition to the standard safety variables, other safety variables including C-SSRS, SAS, AIMS, BARS, CSFQ, and PSQI will also be evaluated.

Countries

Bulgaria, Czechia, Germany, Hungary, Poland, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026