Purpose

The purpose of this study is to assess antidepressant efficacy differences between ALTO-100 and placebo during the Double-Blind period in patients with bipolar disorder I or II with current major depressive episode, when used adjunctively to a mood stabilizer, related to patient characteristics. Additionally, safety, tolerability, and efficacy will be assessed in a subsequent open label treatment period.

Condition

Eligibility

Eligible Ages
Between 18 Years and 70 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Have a diagnosis of BD-I or BD-II as well as BD-D - At baseline, taking a mood stabilizer, lithium (LI) or lamotrigine (LMG) or valproic acid (VPA, any form) or combination of Li + LMG or Li + VPA for at least 6 weeks with no dose modifications in the past 2 weeks - Willing to comply with all study assessments and procedures - Must not be pregnant or breastfeeding at time of enrollment or throughout study

Exclusion Criteria

  • Evidence of unstable medical condition - Concurrent use of any prohibited medications or substance use disorder - Diagnosed psychotic disorder (other than mania or depression) - Current moderate or severe substance use disorder - Has a history of hypersensitivity or allergic reaction to ALTO-100 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-100
Participants will receive ALTO-100 40 mg tablet twice daily, from Day 1 to Week 6 in the double blind (DB) treatment period. Eligible participants who enter the open label (OL) treatment period will receive ALTO-100 40 mg tablet twice daily from OL baseline until the end of OL period/early termination visit (Up to 7 weeks).
  • Drug: ALTO-100
    ALTO-100 40 mg tablet BID
Placebo Comparator
Placebo DB
Participants will receive matching placebo tablet twice daily, from Day 1 to Week 6 in the double blind (DB) treatment period.
  • Drug: Placebo
    Placebo tablet BID

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.