Clinical Trial 43393

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Garden Grove, CA 92845


Study Summary:

The objective of this study is to evaluate the efficacy, safety and tolerability of cariprazine as an adjunctive treatment to antidepressant therapy (ADT) in patients with MDD who have had an inadequate response to antidepressants alone

A Double-Blind, Placebo-Controlled Study of Cariprazine as an Adjunct to Antidepressants in the Treatment of Patients With Major Depressive Disorder Who Have Had an Inadequate Response to Antidepressants Alone



Inclusion Criteria:

  • Written informed consent has been obtained
  • Written documentation has been obtained in accordance with the relevant country and local privacy requirements, where applicable (eg, Written Authorization for Use and Release of Health and Research Study Information [US sites] and written Data Protection consent [EU sites])
  • Patient must be an outpatient at the time of Visit 1 (Screening)
  • Patient meets the DSM-5 criteria for MDD based on SCID-5, with a current major depressive episode of at least 8 weeks and not exceeding 18 months in duration at Visit 1/Screening. A diagnosis of MDD with psychotic features will be acceptable.
  • Diagnosis of MDD confirmed through a formal adjudication process (see Section 6.1)
  • Patient demonstrates ability to follow study instructions and likely to complete all required visits
  • Patient must have an inadequate response, as measured by the modified ATRQ, to 1 to 3 antidepressants administered during the current episode at an adequate dose (as per package insert) and for at least 6 weeks duration, with at least one dose escalation during the current depressive episode.
  • Only one antidepressant (of sufficient dose per package insert and taken for at least 6 weeks) will be allowed at randomization and patients must agree to continue taking the same ADT dosing regimen through completion of Visit 6/ET. Patients who are taking more than one antidepressant at Screening, regardless of the indication, will need to discontinue all other antidepressants prior to Visit 2 (Baseline).
  • Male and female patients must agree to use a medically acceptable and highly effective method of birth control during the course of the entire study
  • Women of childbearing potential (only) must have a negative serum β-human chorionic gonadotropin pregnancy test prior to Visit 2


Qualified Participants May Receive:

Monetary compensation and study-related care at no cost to the participant.


Study is Available At:

CNS - Collaborative Neuroscience
12772 Valley View St.
Garden Grove, CA 92845
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If you or someone you care for is interested in participating in this clinical trial and lives within 50 miles of the clinic, please complete the form below and click 'I Am Interested In This Study'

Clinical trials are medical research studies designed to test the safety and/or effectiveness of new investigational drugs, devices, or treatments in humans. These studies are conducted worldwide for a range of conditions and illnesses. Learn more about clinical research and participating in a study at About Clinical Trials.