A Study of Esketamine Nasal Spray Versus Placebo Spray in Adult Participants With Treatment-resistant Depression
A Randomized, Double-blind, Multicenter, Placebo-controlled Study to Evaluate the Efficacy, Safety, and Tolerability of Esketamine Nasal Spray, Administered as Monotherapy, in Adult Participants With Treatment-resistant Depression
1 other identifier
interventional
348
2 countries
4
Brief Summary
The purpose of this study is to evaluate how well each individual dose of esketamine (56 milligrams \[mg\] and 84 mg) works when compared with placebo in improving depressive symptoms in participants with treatment resistant depression (individuals with major depressive disorder \[MDD\] who have not responded to at least 2 different antidepressant treatments given at an adequate dose for an adequate duration in the current episode of depression).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Jul 2026
Typical duration for phase_3
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 15, 2026
CompletedFirst Posted
Study publicly available on registry
July 21, 2026
CompletedStudy Start
First participant enrolled
July 27, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 27, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 12, 2029
July 31, 2026
July 1, 2026
2.4 years
July 15, 2026
July 30, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Double-Blind (DB) Treatment Phase: Change From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) Total Score From Day 1 to the End of the 4-Week Double-Blind Treatment Phase
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 (Day 1 [prerandomization]) up to end of the 4-Week DB treatment phase (Day 28)
Secondary Outcomes (21)
DB Treatment Phase: Change From Baseline in MADRS Total Score From Day 1 to Day 2
Baseline (Day 1 [prerandomization]) up to Day 2 (approximately 24 hours after the first dose)
DB Treatment Phase: Percentage of Responders in MADRS Over Time to the End of the 4-Week DB Treatment Phase
Up to end of the 4-Week DB treatment phase (Day 28)
DB Treatment Phase: Percentage of Participants in Remission in MADRS Over Time to the End of the 4-Week DB Treatment Phase
Up to end of the 4-Week DB treatment phase (Day 28)
DB Treatment Phase: Change From Baseline in Clinical Global Impression-Severity (CGI-S) Over Time to the End of the 4-Week DB Treatment Phase
Baseline up to end of the 4-Week DB treatment phase (Day 28)
DB Treatment Phase: Change From Baseline in MADRS Total Score Over Time to the End of the 4-Week DB Treatment Phase
Baseline up to end of the 4-Week DB treatment phase (Day 28)
- +16 more secondary outcomes
Other Outcomes (15)
DB Treatment Phase: Number of Participants with Abnormalities in Blood Oxygen Saturation (SpO2)
Up to end of the 4-Week DB treatment phase (Day 28)
DB Treatment Phase: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Up to end of the 4-Week DB treatment phase (Day 28)
DB Treatment Phase: Suicidal Ideation and Behavior as Assessed Using the Columbia Suicide Severity Rating Scale (C-SSRS)
Up to end of the 4-Week DB treatment phase (Day 28)
- +12 more other outcomes
Study Arms (3)
Esketamine 56 milligram (mg)
EXPERIMENTALParticipants will be randomized to receive double-blind (DB) treatment with esketamine 56 mg, twice a week for 4 weeks. Participants who complete the DB treatment phase on Day 28 may be eligible to participate in an open-label treatment phase and receive either esketamine 56 or 84 mg.
Esketamine 84 mg
EXPERIMENTALParticipants will be randomized to receive DB treatment with esketamine 84 mg, twice a week for 4 weeks. Participants who complete the DB treatment phase on Day 28 may be eligible to participate in an open-label treatment phase and receive either esketamine 56 or 84 mg.
Placebo
PLACEBO COMPARATORParticipants will be randomized to receive DB treatment with placebo twice a week for 4 weeks. Participants who complete the DB treatment phase on Day 28 may be eligible to participate in an open-label treatment phase and receive either esketamine 56 mg or 84 mg.
Interventions
Participants will self-administer 56 mg of esketamine as intranasal spray into each nostril.
Participants will self-administer 84 mg of esketamine as intranasal spray into each nostril.
Eligibility Criteria
You may qualify if:
- Participant must meet the diagnostic and statistical manual of mental disorders (5th edition) (DSM-5) diagnostic criteria for single-episode major depressive disorder (MDD) (if single episode MDD, the duration of the episode must be greater than or equal to \[\>=\] 12 months) or recurrent MDD, without psychotic features, based upon clinical assessment and confirmed by the mini international neuropsychiatric interview (MINI) as the primary diagnosis. Participant must have had the first onset of depression prior to 55 years of age
- Participant must have had nonresponse (less than or equal to \[\<=\] 25 percent \[%\] improvement) to \>=2 oral antidepressant treatments in the current episode of depression, assessed using the massachusetts general hospital-antidepressant treatment response questionnaire (MGH-ATRQ), and confirmed by documented records (for example, medical/pharmacy/prescription records or a letter from a treating physician)
- The participant's current major depressive episode, depression symptom severity, and antidepressant treatment response in the current depressive episode, must be confirmed by the state versus trait, assessability, face validity, ecological validity, rule of three P's (SAFER) Interview
- Participant must be comfortable with self-administration of nasal spray medication and be able to follow the nasal spray administration instructions provided
- A female participant of childbearing potential must have a negative highly sensitive serum (β-human chorionic gonadotropin \[β-hCG\]) at the start of screening and a negative urine pregnancy test must be obtained before the first dose of study drug on Day 1, prior to randomization
You may not qualify if:
- The participant has used ketamine/esketamine (lifetime)
- The participant's depressive symptoms have demonstrated nonresponse in the current major depressive episode to an adequate course of treatment with electroconvulsive therapy (ECT), defined as at least 7 treatments with unilateral/bilateral ECT, or to adequate course of treatment with transcranial magnetic stimulation (TMS), defined as at least 4 weeks of treatment with 5 sessions per week
- Participant has received vagal nerve stimulation (VNS) or deep brain stimulation (DBS) in the current episode of depression
- Participant has homicidal ideation/intent, per the investigator's clinical judgment, or has suicidal ideation with some intent to act within 6 months prior to the start of the screening phase, per the investigator's clinical judgment or based on the columbia suicide severity rating scale (C-SSRS), corresponding to a response of "Yes" on Item 4 (active suicidal ideation with some intent to act, without specific plan) or Item 5 (active suicidal ideation with specific plan and intent) for suicidal ideation on the C-SSRS, or a history of suicidal behavior within the past year prior to the start of the screening phase. Participants reporting suicidal ideation with intent to act or suicidal behavior prior to the start of the double-blind treatment phase should be excluded
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
Psychiatric Medicine Associates LLC
Skokie, Illinois, 60076, United States
The Medical Research Network, LLC
New York, New York, 10128, United States
Taipei Medical University
Taipei, 110, Taiwan
Linkou Chang Gung Memorial Hospital
Taoyuan, 333, Taiwan
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Janssen Research & Development, LLC Clinical Trial
Janssen Research & Development, LLC
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 15, 2026
First Posted
July 21, 2026
Study Start
July 27, 2026
Primary Completion (Estimated)
December 27, 2028
Study Completion (Estimated)
September 12, 2029
Last Updated
July 31, 2026
Record last verified: 2026-07
Data Sharing
- IPD Sharing
- Will share
The data sharing policy of Johnson \& Johnson Innovative Medicine is available at innovativemedicine.jnj.com/our-innovation/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu