Study of ALTO-300 in MDD
NCT05922878
This study is recruiting at 30 US sites in 17 states, according to its ClinicalTrials.gov record last updated .
Summary
The purpose of this study is to determine efficacy differences between ALTO-300 and placebo, used adjunctively to an antidepressant, related to patient characteristics.
Shortened from the sponsor's brief summary. View official record on ClinicalTrials.gov
Conditions studied
- Major Depressive Disorder
Eligibility basics and study details
- Study type
- Interventional
- Phase
- Phase 2
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Sponsor
- Alto Neuroscience
- Last updated on ClinicalTrials.gov
- October 26, 2026
These are the basic criteria only. The full inclusion and exclusion criteria are on the official record, and the study team decides who can take part.
US recruiting sites
Arizona · 1
- Site 200 · Phoenix, AZ
Arkansas · 1
- Site 193 · Rogers, AR
California · 6
- Site 218 · Bellflower, CA
- Site 335 · Lafayette, CA
- Site 335 · Lafayette, CA
- Site 219 · Mather, CA
- Site 267 · Moorpark, CA
- Site 197 · Temecula, CA
Colorado · 1
- Site 343 · Denver, CO
Florida · 1
- Site 221 · Tampa, FL
Georgia · 1
- Site 238 · Fayetteville, GA
Idaho · 1
- Site 236 · Boise, ID
Massachusetts · 1
- Site 288 · Worcester, MA
Minnesota · 2
- Site 240 · Mankato, MN
- Site 265 · Minneapolis, MN
Missouri · 1
- Site 264 · St Louis, MO
Nevada · 1
- Site 344 · Las Vegas, NV
New Mexico · 1
- Site 114 · Albuquerque, NM
New York · 1
- Site 283 · New York, NY
North Carolina · 2
- Site 287 · Rose Hill, NC
- Site 268 · Winston-Salem, NC
Ohio · 1
- Site 202 · Cincinnati, OH
Texas · 7
- Site 316 · Austin, TX
- Site 239 · Conroe, TX
- Site 275 · Houston, TX
- Site 320 · Houston, TX
- Site 353 · Plano, TX
- Site 234 · San Marcos, TX
- Site 235 · Stephenville, TX
Virginia · 1
- Site 277 · Fairfax, VA
Source: ClinicalTrials.gov, data processed . Recruiting US sites filtered by distance and site status; summaries shortened.