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A Study of Aticaprant as Adjunctive Therapy in Adult Participants With Major Depressive Disorder (MDD) With Moderate-to-severe Anhedonia and Inadequate Response to Current Antidepressant Therapy
The purpose of this study is to evaluate the efficacy of aticaprant compared with placebo as adjunctive therapy to an antidepressant in improving depressive symptoms in adult participants with major depressive disorder (MDD) with moderate-to-severe anhedonia (ANH+) who have had an inadequate response to current antidepressant therapy with a selective serotonin reuptake inhibitor (SSRI) or serotonin-norepinephrine reuptake inhibitor (SNRI).
Study details:
Depression is a common and serious psychiatric disorder which is a leading cause of disability worldwide and is associated with elevated mortality and suicide risk. Aticaprant (JNJ-67953964) is a once daily, highly selective kappa opioid receptor (KOR) antagonist, with demonstrated selectivity over mu opioid receptor (MOR) and delta opioid receptor (DOR) being developed for adjunctive treatment of major depressive disorder (MDD) with moderate-to-severe anhedonia (ANH+). The study consists of a screening phase (up to 30 days prior to randomization), double-blind treatment phase (43 days), and follow-up phase (up to 14 days).
The total duration of the study will be up to 87 days. Safety evaluations including adverse events, physical examinations, urine drug test, alcohol breath tests, and clinical laboratory tests will be assessed at specific time points during this study.
Eligibility criteria
Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.
Inclusion criteria
Exclusion criteria
Eligibility
Age eligible for study : 18 and older
Healthy volunteers accepted : No
Gender eligible for study: All
Things to know
Study dates
Study start: 2022-06-22
Primary completion: 2024-09-18
Study completion finish: 2024-10-01
Study type
TREATMENT
Phase
PHASE3
Trial ID
NCT05455684
Intervention or treatment
DRUG: Aticaprant
OTHER: Placebo
Conditions
- • Depressive Disorder, Major
- • Anhedonia
Find a site
Closest Location:
Peninsula Therapeutic & Research Group
Research sites nearby
Select from list below to view details:
Peninsula Therapeutic & Research Group
Frankston, Not Specified, Australia
Albert Road Clinic
Melbourne, Not Specified, Australia
The Alfred Hospital
Melbourne, Not Specified, Australia
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Participant Group/Arm | Intervention/Treatment |
---|---|
EXPERIMENTAL: Aticaprant
| DRUG: Aticaprant
|
PLACEBO_COMPARATOR: Placebo
| OTHER: Placebo
|
What is the study measuring?
Primary outcome
Primary Outcome Measure | Primary Outcome Description | Primary Outcome Time Frame |
---|---|---|
Change from Baseline in Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score to Day 43 | Change from baseline in MADRS total score to Day 43 will be reported. The MADRS is a clinician-rated scale designed to measure depression severity and detects changes due to antidepressant treatment. The scale consists of 10 items, each of which is scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), for a total possible score of 60. Higher scores represent a more severe condition. | Baseline to Day 43 |
Secondary outcome
Secondary Outcome Measure | Secondary Outcome Description | Secondary Outcome Time Frame |
---|---|---|
Change from Baseline in Dimensional Anhedonia Rating Scale (DARS) Total Score to Day 43 | Change from baseline in DARS total score to Day 43 will be reported. DARS is a 17-item self-report questionnaire that is designed to assess anhedonia in major depressive disorder (MDD), and particularly to increase scale generalizability while maintaining specificity. Respondents provide their own examples of rewarding experiences across the domains of hobbies, social activities, food/drink, and sensory experience. Participants answer a set of standardized questions about desire, motivation, effort, and consummatory pleasure with a recall period of "right now" for the examples provided. The instrument is scored as a total sum of all items (range 0-68) with higher scores reflecting increased motivation, effort and pleasure (that is, less anhedonia). | Baseline to Day 43 |
Change from Baseline in MADRS Total Score over Time | Change from baseline in MADRS total score over time will be reported. The MADRS is a clinician-rated scale designed to measure depression severity and detects changes due to antidepressant treatment. The scale consists of 10 items, each of which is scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), for a total possible score of 60. Higher scores represent a more severe condition. | Baseline up to Day 57 |
Percentage of Responders on Depressive Symptoms Scale from Baseline to Day 43 | Percentage of responders on depressive symptoms scale, defined as a greater than or equal to (\>=) 50 percent (%) improvement in MADRS total score from baseline to Day 43 will be reported. The MADRS is a clinician-rated scale designed to measure depression severity and detects changes due to antidepressant treatment. The scale consists of 10 items, each of which is scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), for a total possible score of 60. Higher scores represent a more severe condition. | Baseline to Day 43 |
Percentage of Participants with Remission of Depressive Symptoms Defined as a MADRS Total Score <=10 at Day 43 | Percentage of participants with remission of depressive symptoms, defined as a MADRS total score less than or equal to (\<=) 10 at Day 43 will be reported. The MADRS is a clinician-rated scale designed to measure depression severity and detects changes due to antidepressant treatment. The scale consists of 10 items, each of which is scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), for a total possible score of 60. Higher scores represent a more severe condition. | Day 43 |
Change from Baseline in Patient Health Questionnaire, 9-Item (PHQ-9) Total Score to Day 43 | Change from baseline in PHQ-9 total score to Day 43 will be reported. The 9-item PHQ-9 scale scores each of the 9 symptom domains of the diagnostic and statistical manual of mental disorders-5th edition (DSM-5) MDD criteria and it is used both as a screening tool and a measure of response to treatment for depression. Each item is rated on a 4-point scale (0=not at all, 1=several days, 2=more than half the days, and 3=nearly every day). The participant's item responses are summed to provide a total score (range of 0 to 27), with higher scores indicating greater severity of depressive symptoms. | Baseline to Day 43 |
Change from Baseline in DARS Total Score Over Time | Change from baseline in DARS total score over time will be reported. DARS is a 17-item self-report questionnaire that was designed to assess anhedonia in MDD, and particularly to increase scale generalizability while maintaining specificity. Respondents provide their own examples of rewarding experiences across the domains of hobbies, social activities, food/drink, and sensory experience. Participants answer a set of standardized questions about desire, motivation, effort and consummatory pleasure with a recall period of "right now" for the examples provided. The instrument is scored on 0 (not at all) to 4 (very much) and the total score is calculated as a sum of all items (range 0-68) with higher scores reflecting increased motivation, effort, and pleasure (that is, less anhedonia). | Baseline up to Day 57 |
Change from Baseline in the PHQ-9 Anhedonia-specific Item (PHQ-9, item 1) Over Time | Change from baseline in the PHQ-9 Anhedonia-specific item (PHQ-9, item 1) over time will be reported. The 9-item PHQ-9 scale scores each of the 9 symptom domains of the diagnostic and statistical manual of mental disorders-5th edition (DSM-5) MDD criteria and it is used both as a screening tool and a measure of response to treatment for depression: Each item is rated on a 4-point scale (0=not at all, 1=several days, 2=more than half the days, and 3=nearly every day). The participant's item responses are summed to provide a total score (range of 0 to 27), with higher scores indicating greater severity of depressive symptoms. | Baseline up to Day 57 |
Percentage of Participants with a Score Less than (<) 2 in the PHQ-9 Anhedonia-specific Item (PHQ-9, Item 1) at Day 43 | Percentage of participants with a score \< 2 in the PHQ-9 Anhedonia-specific Item (PHQ-9, Item 1) at Day 43 will be reported. | Day 43 |
Change from Baseline in the Patient-reported Outcomes Measurement Information System (PROMIS) Short Form-Ability to Participate in Social Roles and Activities - 8a (PROMIS-APS 8a) Over Time | The PROMIS-APS 8a includes items selected from the PROMIS item bank to provide an assessment of the current degree of involvement in one's usual social roles, activities, and responsibilities, including work, family, friends, and leisure. The 8-item short form will be used in this study, and responses to every item are in a 5-point ordinal scale ranging from 1 = "Always" to 5 = "Never," with higher scores indicating better social functioning. The total scores of PROMIS-APS 8a are scaled on a T-score metric with a mean of 50 and a standard deviation (SD) of 10. | Baseline up to Day 57 |
Change from Baseline over Time in the Work Productivity and Activity Impairment (WPAI:D) | The WPAI:D questionnaire is a validated short instrument that assesses impairment in work and other regular activities over the past 7 days. The WPAI questionnaire assesses 4 separate measures: absenteeism (that is , the proportion of work time missed due to MDD), presenteeism (that is, the degree of impairment while working due to MDD), work productivity loss (ie, overall work impairment due to MDD/absenteeism plus presenteeism), and activity impairment (that is, the degree of impairment of regular, nonwork activity due to MDD). The WPAI outcomes are expressed as impairment percentages, with higher values indicating greater impairment and less productivity, that is, worse outcomes. | Baseline up to Day 43 |
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