Oral icalcaprant for adults with major depressive disorder
Official title: A Phase 2, Multicenter, 6-Week, Double Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Icalcaprant in Subjects With Major Depressive Disorder
Run by AbbVie · NCT07276997 · Data updated 2026-11-12
This trial tests whether oral icalcaprant can reduce depressive symptoms and be tolerated by adults currently experiencing a major depressive episode.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 195 (estimated) |
| Sponsor | AbbVie Industry-sponsored |
| Locations | 33 sites (Dothan, Alabama and 32 other locations) |
| Status | Recruiting |
| Started | December 18, 2025 |
| Main results expected | September 2027 |
| Study ends | September 2027 |
| Registry record updated | June 15, 2026 |
| Trial ID | NCT07276997 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with DSM-5-TR major depressive disorder who are currently in a major depressive episode (4 weeks to 6 months), have a BMI between 18 and 35 kg/m2, and meet the study's medical and ECG/lab criteria are the intended participants.
✕Probably not a fit
People with psychotic features, those who have failed three or more adequate antidepressant treatments during the current episode (treatment-resistant), or those with significant medical contraindications are unlikely to benefit from this trial.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized Phase 2 interventional trial will enroll about 195 adults with major depressive disorder and assign them to one of three treatment arms, with roughly a one-in-three chance of receiving placebo. Eligibility requires a DSM-5-TR diagnosis of MDD confirmed by the MINI and a current major depressive episode that began between 4 weeks and 6 months prior to screening. The study measures changes in disease activity and records adverse events while participants take oral icalcaprant or placebo across multiple clinic visits at approximately 35 sites in North America. Safety monitoring includes physical exams, laboratory tests, vital signs, and 12-lead ECGs documented at screening and during the study.
Why it matters
Potential benefit: If successful, icalcaprant could provide a new oral treatment option that reduces depressive symptoms with an acceptable safety profile.
How similar studies have gone: Some early-stage trials of kappa-opioid receptor antagonists and other novel mechanisms have shown promise, but icalcaprant's effectiveness for depression has not yet been proven in controlled studies.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Participants with a diagnosis of major depressive disorder (MDD) according to the Diagnostic and Statistical Manual of Mental Disorders, fifth edition, text revision (DSM-5-TR) without psychotic features, confirmed by the Mini International Neuropsychiatric Interview (MINI) 7.0. * Body Mass Index (BMI) is ≥ 18.0 to ≤ 35.0 kg/m\^2 * Currently experiencing an major depressive episode (MDE) beginning at least 4 weeks prior to consent and not exceeding 6 months prior to Screening * Normal physical examination findings, clinical laboratory test results, vital signs, and 12-lead ECG results at Visit 1 or abnormal results that are judged not clinically significant by the investigator and documented as such in the eCRF. Exclusion Criteria: * Has failed (no more than 25% response on Antidepressant Treatment History Questionnaire (ATRQ)) 3 or more antidepressant treatments during the current depressive episode despite an adequate dose (per ATRQ) and duration (at least 6 weeks). * History of an allergic reaction or significant sensitivity to constituents of the study drug (and its excipients) and/or other products in the same class.
Where it's running
-
Harmonex /ID# 277517
Dothan, Alabama, United States Recruiting -
Ima Clinical Research Phoenix (Alea) /ID# 277516
Phoenix, Arizona, United States Recruiting -
Preferred Research Partners /ID# 279206
Little Rock, Arkansas, United States Recruiting -
Woodland International Research Group /ID# 277605
Little Rock, Arkansas, United States Recruiting -
Advanced Research Center /ID# 277537
Anaheim, California, United States Recruiting -
Sun Valley Research Center /ID# 277513
Imperial, California, United States Recruiting
Show 27 more locations
-
Synergy San Diego /ID# 277553
Lemon Grove, California, United States Recruiting -
Accellacare - Long Beach /ID# 279181
Long Beach, California, United States Recruiting -
CenExel CNR /ID# 277533
Sherman Oaks, California, United States Recruiting -
Inland Psychiatric Medical Group /ID# 279275
Temecula, California, United States Recruiting -
Sunwise Clinical Research /ID# 277555
Walnut Creek, California, United States Recruiting -
CenExel Hollywood FL /ID# 278200
Hollywood, Florida, United States Recruiting -
Cns Healthcare - Jacksonville /ID# 277658
Jacksonville, Florida, United States Recruiting -
GMI Florida - Central Miami Medical Institute /ID# 278218
Miami, Florida, United States Recruiting -
Clinical Neuroscience Solutions - Orlando - East South Street /ID# 277558
Orlando, Florida, United States Recruiting -
EquiPath Health & Research Tampa Bay, LLC /ID# 279128
Riverview, Florida, United States Recruiting -
Trialmed /ID# 277601
Atlanta, Georgia, United States Recruiting -
Evergreen Clinical Trials - Norcross /ID# 279421
Norcross, Georgia, United States Recruiting -
Flourish Research - Great Lakes Clinical Trials /ID# 278201
Chicago, Illinois, United States Recruiting -
Amr Conventions Research /ID# 277547
Warrenville, Illinois, United States Recruiting -
Redbird Research /ID# 277485
Las Vegas, Nevada, United States Recruiting -
Ima Clinical Research - Manhattan /ID# 278212
New York, New York, United States Recruiting -
Manhattan Behavioral Medicine /ID# 277910
New York, New York, United States Recruiting -
Quest Therapeutics of Avon /ID# 277550
Avon Lake, Ohio, United States Recruiting -
OSU Psychiatry Department /ID# 277529
Columbus, Ohio, United States Recruiting -
Sooner Clinical Research /ID# 277659
Oklahoma City, Oklahoma, United States Recruiting -
Clinical Neuroscience Solutions /ID# 278192
Memphis, Tennessee, United States Recruiting -
Austin Clinical Trial Partners /ID# 279321
Austin, Texas, United States Recruiting -
Community Clinical Research - Cross Park Drive /ID# 277935
Austin, Texas, United States Recruiting -
Houston Clinical Trials - Bellaire /ID# 277551
Bellaire, Texas, United States Recruiting -
Pillar Clinical Research - Richardson /ID# 276764
Richardson, Texas, United States Recruiting -
Northwest Clinical Research Center /ID# 277484
Bellevue, Washington, United States Recruiting -
Core Clinical Research /ID# 277518
Everett, Washington, United States Recruiting
Study contacts
- Study coordinator: Abbvie Call Center
- Email: abbvieclinicaltrials@abbvie.com
- Phone: 844-663-3742
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Dupilumab for Major Depressive Disorder
This study tests whether dupilumab can engage immune targets in adults with major depressive disorder to see if it can help with depressive symptoms.
-
Accelerated vs Standard iTBS for Major Depression
This trial tests whether giving more accelerated iTBS sessions is better tolerated and more effective than the standard schedule for adults with major depressive disorder.
-
Psilocybin with Structured Integrated Reframing Therapy for trauma-related MDD and PTSD
This trial tests whether psilocybin therapy, alone or with Structured Integrated Reframing Therapy (SIRT), helps people with trauma-related major depressive disorder who are already on a stable antidepressant.
-
Magnesium Bisglycinate Added to Your Depression Treatment
This study tests whether adding magnesium bisglycinate to your current antidepressant can help reduce depressive symptoms and improve sleep and daily functioning for adults with major depressive disorder.
-
Motif XCS System for treatment-resistant depression
This study tests whether the Motif XCS System is safe and tolerable and might help people with treatment-resistant major depressive disorder.
-
A Phase 3 test of DT120 for major depressive disorder
DT120 is tested against placebo in adults with major depressive disorder to see if it can help reduce depressive symptoms.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.