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Study of ALTO-300 in MDD
Sponsor: Alto Neuroscience
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.
Official title: A Randomized, Double-Blind, Placebo-Controlled Study of ALTO-300 With an Open-Label Extension in Adults With Major Depressive Disorder
Key Details
Gender
All
Age Range
18 Years - 70 Years
Study Type
INTERVENTIONAL
Enrollment
325
Start Date
2023-06-08
Completion Date
2026-12
Last Updated
2026-10-26
Healthy Volunteers
No
Conditions
Interventions
ALTO-300
ALTO-300 capsule QD
Placebo
Placebo capsule QD
Locations (75)
Site 200
Phoenix, Arizona, United States
Site 189
Phoenix, Arizona, United States
Site 187
Yuma, Arizona, United States
Site 193
Rogers, Arkansas, United States
Site 218
Bellflower, California, United States
Site 318
Carlsbad, California, United States
Site 217
Glendale, California, United States
Site 335
Lafayette, California, United States
Site 335
Lafayette, California, United States
Site 209
Los Angeles, California, United States
Site 219
Mather, California, United States
Site 194
Mission Viejo, California, United States
Site 267
Moorpark, California, United States
Site 197
Temecula, California, United States
Site 203
Colorado Springs, Colorado, United States
Site 343
Denver, Colorado, United States
Site 345
Evergreen, Colorado, United States
Site 349
Evergreen, Colorado, United States
Site 214
Norwalk, Connecticut, United States
Site 159
Clermont, Florida, United States
Site 225
Miami Gardens, Florida, United States
Site 190
Miami Lakes, Florida, United States
Site 161
Okeechobee, Florida, United States
Site 221
Tampa, Florida, United States
Site 220
West Palm Beach, Florida, United States
Site 238
Fayetteville, Georgia, United States
Site 224
Savannah, Georgia, United States
Site 208
Snellville, Georgia, United States
Site 293
Stone Mountain, Georgia, United States
Site 317
Blackfoot, Idaho, United States
Site 119
Boise, Idaho, United States
Site 236
Boise, Idaho, United States
Site 310
Chicago, Illinois, United States
Site 314
Wichita, Kansas, United States
Site 201
Marrero, Louisiana, United States
Site 198
Monroe, Louisiana, United States
Site 288
Worcester, Massachusetts, United States
Site 240
Mankato, Minnesota, United States
Site 265
Minneapolis, Minnesota, United States
Site 279
Hattiesburg, Mississippi, United States
Site 215
Jackson, Mississippi, United States
Site 229
Creve Couer, Missouri, United States
Site 264
St Louis, Missouri, United States
Site 231
Omaha, Nebraska, United States
Site 344
Las Vegas, Nevada, United States
Site 114
Albuquerque, New Mexico, United States
Site 283
New York, New York, United States
Site 319
New York, New York, United States
Site 191
Rochester, New York, United States
Site 192
Staten Island, New York, United States
Site 199
Hickory, North Carolina, United States
Site 287
Rose Hill, North Carolina, United States
Site 268
Winston-Salem, North Carolina, United States
Site 202
Cincinnati, Ohio, United States
Site 195
Oklahoma City, Oklahoma, United States
Site 303
Oklahoma City, Oklahoma, United States
Site 216
Allentown, Pennsylvania, United States
Site 350
Media, Pennsylvania, United States
Site 352
Moosic, Pennsylvania, United States
Site 316
Austin, Texas, United States
Site 239
Conroe, Texas, United States
Site 102
Dallas, Texas, United States
Site 347
Fort Worth, Texas, United States
Site 148
Fort Worth, Texas, United States
Site 275
Houston, Texas, United States
Site 320
Houston, Texas, United States
Site 206
Missouri City, Texas, United States
Site 353
Plano, Texas, United States
Site 196
Richmond, Texas, United States
Site 234
San Marcos, Texas, United States
Site 235
Stephenville, Texas, United States
Site 207
Clinton, Utah, United States
Site 315
Provo, Utah, United States
Site 277
Fairfax, Virginia, United States
Site 211
Roanoke, Virginia, United States