Major Depressive Disorder
Conditions
Brief summary
The purpose of this study is to collect biologically-based data for defining predictors and correlates of the effects of ALTO-300.
Interventions
DRUGALTO-300 PO Tablet
One tablet daily
Sponsors
Alto Neuroscience
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 74 Years
Healthy volunteers
No
Inclusion criteria
* Have a diagnosis of moderate to severe major depressive disorder * Currently taking a SSRI, SNRI, or bupropion for at least 6 weeks with no dose modifications in the past 2 weeks * Must have failed to adequately respond to the current antidepressant medication * 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 liver impairment or disease * Active suicidal ideation * Moderate to severe Alcohol Use Disorder * Diagnosed bipolar disorder or psychotic disorder * Has a history of hypersensitivity or allergic reaction to ALTO-300 or any of its components/excipients * Concurrent or recent participation in another clinical trial for mental illness involving an investigational product or device
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| To understand the relationship between baseline biology and change in the Montgomery-Asberg Depression Rating Scale (MADRS) with ALTO-300 | Measured 6 times over 8 weeks | The Montgomery-Åsberg Depression Rating Scale (MADRS) measures the severity of depression where smaller scores indicate less depression and higher scores suggest more severe depression. Possible scores for this 10 item version range from 0 to 60. The change from baseline to the end of the study is the primary outcome. |
| To understand the relationship between baseline biology and change in the Clinical Global Impression scale - Severity (CGI-S) with ALTO-300 | Measured 6 times over 8 weeks | The Clinical Global Impression scale - Severity (CGI-S) measures the severity of psychopathology in general where smaller scores indicate less illness and higher scores suggest more severe illness. Possible scores for this scale range from 1 to 7. The change from baseline to the end of the study is the primary outcome. |
| Number of Participants with Adverse Events (AEs) as a Measure of Safety and Tolerability of ALTO-300 | From the signing of the ICF until the follow-up visit (up to 12 weeks) | An adverse event is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. |
| Number of Participants With Clinically Significant Vital Signs Abnormalities as a Measure of Safety and Tolerability of ALTO-300 | From the signing of the ICF until the end-of-treatment visit (up to 11 weeks)] | Vital signs measured include blood pressure, heart rate, respiratory rate, temperature, and weight. |
| Number of Participants With Clinically Significant Laboratory Abnormalities as a Measure of Safety and Tolerability of ALTO-300 | From the signing of the ICF until the end-of-treatment visit (up to 11 weeks)] | Blood samples for serum chemistry and hematology will be collected for clinical laboratory testing. |
Countries
United States
Outcome results
None listed