Purpose

The purpose of this trial is to measure depressive symptoms following treatment with ALTO-207 compared with placebo in participants with TRD.

Condition

Eligibility

Eligible Ages
Between 18 Years and 75 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Male and female participants, ages 18 to 75 years, inclusive, at the time of signing the ICF. - Prior diagnosis of MDD without psychotic symptoms (in the current episode) and have confirmatory diagnosis of current MDD (moderate to severe). - Failure to respond (<50% improvement) to at least 2-5 antidepressant treatments (including the current treatment) - Currently taking a stable dose of at least 1 but no more than 2 oral antidepressants at baseline

Exclusion Criteria

  • Evidence of unstable medical condition - Concurrent use of any prohibited medications or substance use disorder - Diagnosed bipolar disorder or a psychotic disorder or symptoms - Significant current PTSD symptoms or history of PTSD - Clinically significant current impulse control difficulties - Has a history of hypersensitivity or allergic reaction to ALTO-207 or any of its components/excipients - Concurrent or recent participation in another clinical trial for mental illness involving an investigational product or device

Study Design

Phase
Phase 2
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
ALTO-207
  • Drug: ALTO-207
    ALTO-207 BID
Placebo Comparator
Placebo
  • Drug: Placebo
    Matching Placebo

Recruiting Locations

More Details

Status
Recruiting
Sponsor
Alto Neuroscience

Study Contact

Alto Neuroscience
650-200-0412
clinical@altoneuroscience.com

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.