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A 6-Week, Multicenter, Open-Label, Monotherapy, Extension Study of SPT-300 in Adults with Major Depressive Disorder, With or Without Anxious Distress

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-522347-18-00
Acronym
SPT-300-2024-204
Enrollment
231
Registered
2025-11-06
Start date
2025-11-26
Completion date
Unknown
Last updated
2025-12-04

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

Conditions

Major Depressive Disorder (MDD), with or without Anxious Distress

Brief summary

Incidence, severity, and duration of treatment-emergent adverse events, serious adverse events, and incidence of clinically significant vital signs, electrocardiograms, safety laboratory, and physical examination findings, Suicidal ideation and behavior using the Columbia Suicide Severity Rating Scale

Detailed description

Change from Baseline to Visit 6 (Study Day 42) in the following: • HAM-D-17 total score • CGI-S • Hamilton Anxiety Rating Scale • PGI-S • Sheehan Disability Scale • The Quality of Life, Enjoyment, and Satisfaction Questionnaire-Short Form

Interventions

None listed

Sponsors

Seaport Therapeutics Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Incidence, severity, and duration of treatment-emergent adverse events, serious adverse events, and incidence of clinically significant vital signs, electrocardiograms, safety laboratory, and physical examination findings, Suicidal ideation and behavior using the Columbia Suicide Severity Rating Scale

Secondary

MeasureTime frame
Change from Baseline to Visit 6 (Study Day 42) in the following: • HAM-D-17 total score • CGI-S • Hamilton Anxiety Rating Scale • PGI-S • Sheehan Disability Scale • The Quality of Life, Enjoyment, and Satisfaction Questionnaire-Short Form

Countries

Bulgaria, Czechia, Germany, Hungary, Poland, Romania, Slovakia

Outcome results

None listed

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