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Search / Trial NCT05850689

Study of Lumateperone as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder

Launched by INTRA-CELLULAR THERAPIES, INC. · Apr 29, 2023

Trial Information

Current as of July 22, 2025

Recruiting

Keywords

Adjunctive Mdd Therapy

ClinConnect Summary

This clinical trial is studying a medication called Lumateperone to see if it can help people with Major Depressive Disorder (MDD) who aren't getting enough relief from their current antidepressant treatments. The study is looking for adults aged 18 to 65 who have been experiencing depression for at least 12 weeks but not more than 18 months, and who have not responded well to two or more antidepressant medications. Participants will be randomly assigned to receive either Lumateperone or a placebo (a pill that looks like the medication but has no active ingredients) to compare how well they work.

If you or someone you know is interested in participating, it's important to know that this study is currently recruiting patients. Eligible participants will need to have moderate to severe symptoms of depression and must be taking a stable dose of antidepressants for at least six weeks without seeing significant improvement. Throughout the trial, participants will attend regular visits with the study team to monitor their progress and any side effects. This research is essential for finding better treatment options for those struggling with depression, and your involvement could help others in the future.

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • 1. Male or female patients between the ages of 18 and 65 years, inclusive;
  • 2. Meets DSM-5 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:
  • 1. The start of the current major depressive episode (MDE) is at least 12 weeks but not more than 18 months prior to Screening;
  • 2. Has at least moderate severity of illness based on rater-administered MADRS total score ≥ 24 at Screening and at Baseline;
  • 3. Has at least moderate severity of illness based on CGI-S score ≥ 4 at Screening and at Baseline;
  • 4. Has a Quick Inventory of Depressive Symptomatology-Self Report-16 item (QIDS-SR-16) score ≥ 14 at Screening and at Baseline;
  • 5. Has sufficient history and medical record confirmation verifying the ADT and the current MDE is causing clinically significant distress or impairment in social, occupational, or other important areas of functioning.
  • 3. 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:
  • 1. citalopram/escitalopram
  • 2. fluoxetine
  • 3. paroxetine
  • 4. sertraline
  • 5. duloxetine
  • 6. levomilnacipran/milnacipran (if locally approved for MDD)
  • 7. venlafaxine/desvenlafaxine
  • 8. bupropion
  • 9. vilazodone
  • 10. vortioxetine
  • Exclusion Criteria:
  • 1. Within the patient's lifetime, has a confirmed DSM-5 psychiatric diagnosis other than MDD, including:
  • 1. Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder or other psychotic disorder;
  • 2. Bipolar Disorder;
  • 2. Within 6 months of Screening, has a confirmed DSM-5 psychiatric diagnosis other than MDD including:
  • 1. Anxiety disorders such as Panic Disorder or Generalized Anxiety Disorder; Obsessive-compulsive Disorder; Posttraumatic Stress Disorder as primary diagnoses. Note: Anxiety symptoms may be allowed if secondary to MDD, provided these symptoms do not require concurrent treatment;
  • 2. Eating disorder;
  • 3. Substance use disorders (excluding nicotine);
  • 4. Personality disorder of sufficient severity to have a major impact on the patient's psychiatric status;
  • 5. Within 12 months of Screening, has had any other psychiatric condition (other than MDD) that has been the main focus of treatment;
  • 3. The patient experiences a ≥ 25% decrease in the MADRS total score between Screening and Baseline;
  • 4. The patient experiences a ≥ 25% decrease in the QIDS-SR-16 total score between Screening and Baseline;
  • 5. In the opinion of the Investigator, the patient has a significant risk for suicidal behavior during participation in the study or:
  • 1. At Screening, the patient scores "yes" on Suicidal Ideation Items 4 or 5 of the Columbia-Suicide Severity Rating Scale (C-SSRS) within 6 months prior to Screening, or at Baseline, the patient scores "yes" on Suicidal Ideation Items 4 or 5 since the Screening Visit;
  • 2. At Screening, the patient has had 1 or more suicide attempts within 2 years prior to Screening;
  • 3. At Screening or Baseline, the patient scores ≥ 5 on MADRS Item 10 (Suicidal Thoughts), or
  • 4. The patient is considered to be in imminent danger to him/herself or others.
  • 6. The patient has a first MDE at age 60 years or older.

About Intra Cellular Therapies, Inc.

Intra-Cellular Therapies, Inc. is a biopharmaceutical company dedicated to the development of innovative therapies for neuropsychiatric and other central nervous system disorders. The company focuses on leveraging its proprietary technologies to explore novel mechanisms of action, aiming to address unmet medical needs in complex conditions such as schizophrenia, bipolar disorder, and depression. Intra-Cellular Therapies is committed to advancing clinical research and improving patient outcomes through rigorous scientific inquiry, robust clinical trials, and a patient-centered approach to drug development.

Locations

Atlanta, Georgia, United States

Philadelphia, Pennsylvania, United States

Kansas City, Kansas, United States

Decatur, Georgia, United States

Columbus, Ohio, United States

Cincinnati, Ohio, United States

Barcelona, , Spain

Miami, Florida, United States

O'fallon, Missouri, United States

Bellevue, Washington, United States

Kardzhali, , Bulgaria

Varna, , Bulgaria

Belgrade, , Serbia

Kovin, , Serbia

Kragujevac, , Serbia

Madrid, , Spain

Richardson, Texas, United States

Pleven, , Bulgaria

Novi Kneževac, , Serbia

Pico Rivera, California, United States

Farmington, Connecticut, United States

Clermont, Florida, United States

Hialeah, Florida, United States

Tampa, Florida, United States

Overland Park, Kansas, United States

Methuen, Massachusetts, United States

New York, New York, United States

Avon Lake, Ohio, United States

Houston, Texas, United States

Barcelona, , Spain

Huntsville, Alabama, United States

Kansas City, Kansas, United States

Cherven Bryag, , Bulgaria

Sofia, , Bulgaria

Stara Zagora, , Bulgaria

Kaunas, , Lithuania

Ziegzdriai, , Lithuania

Zamora, , Spain

Douai, , France

Nantes, , France

Nîmes, , France

Paris, , France

Poitiers, , France

Ahmedabad, Gujarat, India

Rājkot, Gujarat, India

Sūrat, Gujarat, India

Kolhāpur, Maharahstra, India

Bārāmati, Maharashtra, India

Nagpur, Maharashtra, India

Pune, Maharashtra, India

Wardha, Maharashtra, India

Ajmer, Rajasthan, India

Gornja Toponica, , Serbia

Niš, , Serbia

Sabadell, , Spain

Patients applied

0 patients applied

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported