Purpose

The purpose of this study is to assess the long-term safety and tolerability of aticaprant administered as adjunctive therapy to a current antidepressant (selective serotonin reuptake inhibitor [SSRI] or serotonin and norepinephrine reuptake inhibitor [SNRI]) in all participants with major depressive disorder (MDD).

Condition

Eligibility

Eligible Ages
Between 18 Years and 74 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

Transferred-entry participants: -Participants must have completed the double blind (DB) (expand DB) Treatment Phase of Study 67953964MDD3001 or Study 67953964MDD3002 without early treatment discontinuation or switch in the oral selective serotonin reuptake inhibitor/serotonin-norepinephrine reuptake inhibitor (SSRI/SNRI) in the parent study Direct-entry participants: - Have a Hamilton Depression Rating Scale (HDRS)-17 total score of 20 or higher at the first and second screening interviews and must not demonstrate a clinically significant improvement (that is, an improvement of more than 20 percent (%) on their HDRS-17 total score) between the first and the second independent HDRS-17 assessments - Have had an inadequate response to at least 1 oral antidepressant treatment, administered at an adequate dose (at or above the minimum therapeutic dose per Massachusetts general hospital antidepressant treatment response questionnaire [MGH ATRQ]) and duration (at least 6 weeks) in the current episode of depression - Must be an outpatient at open-label treatment phase baseline - Meet Diagnostic and Statistical Manual of Mental Disorders-5th Edition (DSM-5) diagnostic criteria for recurrent or single episode major depressive disorder (MDD), without psychotic features, based upon clinical assessment and confirmed by the Structured Clinical Interview for DSM-5 Axis I Disorders-Clinical Trials Version (SCID-CT) Direct-entry and Transferred-entry Participants: -Participants should not take any prohibited medication or food supplements

Exclusion Criteria

Transferred-entry Participants: - Participant has been non-compliant with the study intervention administration in the DB Treatment Phase in either of Studies 67953964MDD3001 or 67953964MDD3002 (that is, have missed either 4 or more consecutive doses of study intervention or a total of 8 or more doses during the DB Treatment Phase) - Participant has any condition or situation/circumstance for which, in the opinion of the investigator, participation would not be in the best interest of the participant (example, compromise the well-being) or that could prevent, limit, or confound the protocol specified assessments Direct-entry Participants: - Employee of the investigator or study site, with direct involvement in the proposed study or other studies under the direction of that investigator or study site, as well as family members of the employees or the investigator - Has a history or evidence of clinically meaningful noncompliance with current antidepressant therapy - Known allergies, hypersensitivity, or intolerance to aticaprant or any of its excipients

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Aticaprant 10 mg
Participants will enter this study directly or after completing double-blind phase of studies 67953964MDD3001 or 67953964MDD3002 and will receive Aticaprant 10 milligrams (mg), once daily, orally in addition to the current antidepressant selective serotonin reuptake inhibitor/serotonin-norepinephrine reuptake inhibitor (SSRI/SNRI) therapy on Day 1 up to 52 weeks.
  • Drug: Aticaprant
    Aticaprant 10 mg tablet will be administered orally.
    Other names:
    • JNJ-67953964

Recruiting Locations

More Details

Status
Recruiting
Sponsor
Janssen Research & Development, LLC

Study Contact

Study Contact
844-434-4210
Participate-In-This-Study@its.jnj.com

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.