A Phase 3 interventional study of Lumateperone and Placebo in Major Depressive Disorder, sponsored by Intra-Cellular Therapies, Inc.. Recruiting at 69 sites in 7 countries. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-11-03.
Sponsored by Intra-Cellular Therapies, Inc. (part of Johnson & Johnson) · Phase 3, Interventional, and Treatment
This is a multicenter, randomized, double-blind, placebo-controlled parallel-group, fixed-dose study in patients with a primary diagnosis of MDD according to criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) who have an inadequate response to ongoing ADT.
The study will be conducted in three periods:
3,041 studies on the registry are indexed under Depressive Disorder, Major; 588 are open to participants now.
This study's planned enrollment of 470 is above the median of 79 across 2,530 interventional studies indexed under Depressive Disorder, Major.
Browse Depressive Disorder, Major studies →Intra-Cellular Therapies, Inc. is the lead sponsor of 41 studies on the registry; 12 are open to participants now.
Of its 24 completed or terminated interventional studies of FDA-regulated products, 11 (46%) have results posted.
First submitted before Intra-Cellular Therapies, Inc. became part of Johnson & Johnson.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Meets criteria for MDD (MDD with psychotic features will be acceptable) as confirmed by the Investigator or Sponsor-approved rater using the modified Structured Clinical Interview for DSM-5, Clinical Trials Version (SCID-5-CT) and meets all of the following criteria:
Currently having an inadequate response (less than 50% improvement) to 2 or more ADTs in the current MDE as confirmed by the Investigator using the Antidepressant Treatment Response Questionnaire (ATRQ) and taking at least the minimum effective dose (per package insert) of one of the following antidepressants as monotherapy treatment for at least 6 weeks duration:
Exclusion Criteria:
Within the patient's lifetime, has a confirmed psychiatric diagnosis other than MDD, including:
Within 6 months of Screening, has a confirmed DSM-5 psychiatric diagnosis other than MDD including:
In the opinion of the Investigator, the patient has a significant risk for suicidal behavior during participation in the study or:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
DSM diagnostic criteria
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Drug: Lumateperone
Drug: Placebo
Lumateperone 42 mg capsules administered orally, once daily
Matching capsules administered orally, once daily
Montgomery-Asberg Depression Rating Scale
The MADRS is a clinician-rated 10 item scale to assess depressive symptoms. Each item is rated on a 7-point scale from 0-6. The total score ranges from 0 to 60 with a higher score indicating increased severity of depressive symptoms.
Time frame: Day 43
Clinical Global Impression Scale-Severity
The CGI-S is a clinician-rated scale to assess a patient's overall mental health. The scale ranges from 1 (normal, not at all ill) to 7 (among the most extremely ill patients).
Time frame: Day 43
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Plan to share: No
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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Studies of the drug tested here: Lumateperone
Intra-Cellular Therapies, Inc. →