360 Participants Needed

SPT-300 for Depression

Recruiting at 31 trial locations
Ct
Overseen ByClinical trial information desk
Age: 18+
Sex: Any
Trial Phase: Phase 2
Sponsor: Seaport Therapeutics
Prior Safety DataThis treatment has passed at least one previous human trial

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial tests a new treatment called SPT-300, a potential antidepressant, for individuals with major depressive disorder (MDD), a condition marked by persistent sadness and loss of interest. The goal is to determine if SPT-300 can reduce depression symptoms, comparing it to a placebo (a pill with no active medicine). Individuals who have experienced a depressive episode for at least four weeks but less than 18 months, and who lack a history of treatment-resistant depression, may qualify. Participants must refrain from drug use and should not have significant other mental health conditions like bipolar disorder or obsessive-compulsive disorder. As a Phase 2 trial, this research measures the treatment's effectiveness in an initial, smaller group.

Do I need to stop my current medications to join the trial?

The trial information does not specify whether you need to stop taking your current medications. It's best to discuss this with the trial coordinators or your doctor.

Is there any evidence suggesting that SPT-300 is likely to be safe for humans?

Research has shown that SPT-300 is generally safe for people. An earlier study found that most participants did not experience serious side effects when taking SPT-300, indicating a good safety record.

SPT-300 also increased levels of allopregnanolone, a natural brain steroid that can boost mood, more effectively than other oral forms. This suggests that the treatment works well in the body.

In summary, current evidence suggests that SPT-300 is safe for most people, with few serious issues reported.12345

Why do researchers think this study treatment might be promising?

SPT-300 is unique because it uses a novel active ingredient that may offer a new approach to treating depression. Unlike traditional antidepressants, which often target serotonin or norepinephrine pathways, SPT-300 works differently, potentially offering benefits for patients who don't respond well to existing treatments. Researchers are excited about SPT-300 because it could provide faster relief from depressive symptoms and improved outcomes for individuals with treatment-resistant depression.

What evidence suggests that SPT-300 might be an effective treatment for major depressive disorder?

Research shows that SPT-300, also known as GlyphAllo, might help treat major depressive disorder (MDD). Studies have found that allopregnanolone, the main ingredient in SPT-300, works quickly to relieve depression and anxiety. Other trials have proven its effectiveness for these benefits. Additionally, SPT-300 reaches higher levels in the blood compared to similar treatments, which might enhance its effectiveness. This trial will compare SPT-300 to a placebo to evaluate its effectiveness. These findings suggest that SPT-300 could be a promising option for people dealing with depression.15678

Who Is on the Research Team?

DW

David Walling, Ph.D.

Principal Investigator

Collaborative Neuroscience Research - Garden Grove

Are You a Good Fit for This Trial?

This trial is for adults with major depressive disorder (MDD), which can include those who also experience anxiety. Participants should be diagnosed with MDD and fit the study's specific health requirements, but details on these are not provided here.

Inclusion Criteria

I am not planning to get pregnant or breastfeed during the study and will use effective birth control.
I am between 18 and 65 years old and can give my consent to participate.
Body mass index (BMI) between 18 to 40 kg/m2, inclusive.
See 3 more

Exclusion Criteria

I have had a bad reaction or am allergic to allopregnanolone or ingredients in SPT-300/placebo.
I have been hospitalized for depression recently.
I have had depression with severe symptoms like hallucinations or extreme lack of movement.
See 10 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive SPT-300 or placebo capsules once daily for 42 days

6 weeks

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • SPT-300
Trial Overview The BUOY-1 Study is testing SPT-300 (GlyphAllo) against a placebo to see if it helps with depression. Adults in the study will either get the real medicine or a fake pill without knowing which one they have, and researchers compare the results.
How Is the Trial Designed?
2Treatment groups
Experimental Treatment
Placebo Group
Group I: SPT-300Experimental Treatment1 Intervention
Group II: PlaceboPlacebo Group1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Seaport Therapeutics

Lead Sponsor

Premier Research

Collaborator

Premier Research Group plc

Industry Sponsor

Trials
65
Recruited
74,200+

John Ratliff

Premier Research Group plc

Chief Executive Officer since 2024

MBA

Dr. Milena Kanova-Petrova

Premier Research Group plc

Chief Medical Officer since 2024

MD

Citations

A Study to Evaluate the Efficacy and Safety of SPT-300 ...This is a randomized, parallel-group, double-blind, placebo-controlled, monotherapy study to evaluate the efficacy, safety, and tolerability of SPT-300 ( ...
SPT-300 at ACNP Annual Meeting 2024 - PureTech NewsAllopregnanolone has been clinically validated in third-party trials as a rapidly acting antidepressant with anxiolytic effects. New data ...
BUOY-1 builds on successful Phase ...The first patient has been dosed in the Phase 2b BUOY-1 study of GlyphAllo TM (SPT-300 or Glyph Allopregnanolone) in major depressive disorder (MDD) with or ...
Study Details | NCT07161700 | An Open-Label Extension ...This is an open-label, monotherapy, extension study to evaluate the safety and tolerability of SPT-300 (GlyphAllo) in adults with major depressive disorder (MDD) ...
Seaport Therapeutics sees success with allopregnanolone ...The study found that SPT-300 had therapeutically relevant blood levels up to nine times greater than that found in published data on orally ...
News Release DetailsPureTech Founded Entity Seaport Therapeutics Announces First Patient Dosed in Phase 2b BUOY-1 Study of GlyphAllo™ (SPT-300) in Major Depressive ...
Seaport Therapeutics Presents Data from Multiple SPT-300 ...SPT-300 demonstrated nine times greater allopregnanolone exposure in humans dosed orally than published data for oral allopregnanolone.
SPT-300: A Promising Oral Neurosteroid for Mood and ...Data from a Phase 1 trial indicates that SPT-300 is well-tolerated and has a favorable safety profile. ... Elironrasib Safety, Efficacy Data in ...
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