A Study to Assess Change in Disease Activity and Adverse Events of Oral Icalcaprant in Adult Participants With Major Depressive Disorder
Start Date
12/18/2025
Completion Date
9/1/2027
Summary
Major depressive disorder (MDD; depression) is a mood disorder that causes a continued feeling of sadness and loss of interest. It is a common and serious illness that can cause both emotional and physical symptoms such as feelings of sadness, irritability, not being able to focus on activities, tiredness, changes in eating habits, and aches and pains. This study will assess the changes in disease activity and adverse events of oral Icalcaprant in adult participants with major depressive disorder who are currently experiencing a major depressive episode (MDE). Icalcaprant is an investigational drug being developed for the treatment of depressive episodes in adult participants with major depressive disorder. Participants are placed in 1 of 3 groups, called treatment arms. There is a 1 in 3 chance that a participant will be assigned to placebo treatment. Around 195 adult participant with major depressive disorder will be enrolled in approximately 35 sites in North America. Participants will receive oral capsules of Icalcaprant or matching placebo once daily for 6 weeks, with a 30-day safety follow-up. There may be a higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.
Eligibility Criteria
Age Range: 18 years to 65 years
Interventions
Icalcaprant
Placebo for Icalcaprant
Conditions
Locations
Harmonex /ID# 277517
Dothan, Alabama 36303
United States
Ima Clinical Research Phoenix (Alea) /ID# 277516
Phoenix, Arizona 85012
United States
Preferred Research Partners /ID# 279206
Little Rock, Arkansas 72211
United States
Woodland International Research Group /ID# 277605
Little Rock, Arkansas 72211
United States
Advanced Research Center /ID# 277537
Anaheim, California 92805
United States
Sun Valley Research Center /ID# 277513
Imperial, California 92251
United States
Synergy San Diego /ID# 277553
Lemon Grove, California 91945
United States
Accellacare - Long Beach /ID# 279181
Long Beach, California 90807
United States
CenExel CNR /ID# 277533
Sherman Oaks, California 91403
United States
Inland Psychiatric Medical Group /ID# 279275
Temecula, California 92591
United States
Sunwise Clinical Research /ID# 277555
Walnut Creek, California 94596
United States
CenExel Hollywood FL /ID# 278200
Hollywood, Florida 33024
United States
Cns Healthcare - Jacksonville /ID# 277658
Jacksonville, Florida 32256
United States
GMI Florida - Central Miami Medical Institute /ID# 278218
Miami, Florida 33125
United States
Clinical Neuroscience Solutions - Orlando - East South Street /ID# 277558
Orlando, Florida 32801
United States
EquiPath Health & Research Tampa Bay, LLC /ID# 279128
Riverview, Florida 33578
United States
Trialmed /ID# 277601
Atlanta, Georgia 30328
United States
Evergreen Clinical Trials - Norcross /ID# 279421
Norcross, Georgia 30092
United States
Flourish Research - Great Lakes Clinical Trials /ID# 278201
Chicago, Illinois 60640
United States
Amr Conventions Research /ID# 277547
Warrenville, Illinois 60555
United States
Redbird Research /ID# 277485
Las Vegas, Nevada 89119
United States
Ima Clinical Research - Manhattan /ID# 278212
New York, New York 10036
United States
Manhattan Behavioral Medicine /ID# 277910
New York, New York 10036
United States
Quest Therapeutics of Avon /ID# 277550
Avon Lake, Ohio 44012-1004
United States
OSU Psychiatry Department /ID# 277529
Columbus, Ohio 43210-1250
United States
Sooner Clinical Research /ID# 277659
Oklahoma City, Oklahoma 73116
United States
Clinical Neuroscience Solutions /ID# 278192
Memphis, Tennessee 38119
United States
Austin Clinical Trial Partners /ID# 279321
Austin, Texas 78737
United States
Community Clinical Research - Cross Park Drive /ID# 277935
Austin, Texas 78754
United States
Houston Clinical Trials - Bellaire /ID# 277551
Bellaire, Texas 77401
United States
Pillar Clinical Research - Richardson /ID# 276764
Richardson, Texas 75080
United States
Northwest Clinical Research Center /ID# 277484
Bellevue, Washington 98007
United States
Core Clinical Research /ID# 277518
Everett, Washington 98201
United States