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CompletedNCT01998958SYNAPSEUpdated Apr 29, 2025Results posted

A Study to Evaluate the Safety and Efficacy of Intranasal Esketamine in Treatment-resistant Depression

A Phase 2 interventional study of Esketamine 14 mg and Esketamine 28 mg in Treatment Resistant Depressive Disorder, sponsored by Janssen Research & Development, LLC. Completed at 25 sites in 3 countries. Open to participants aged 20 Years to 64 Years. Per ClinicalTrials.gov, last updated 2025-04-29.

Sponsored by Janssen Research & Development, LLC · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
108
Allocation
Randomized
Ages
20 Years to 64 Years
Sex
All
01

Study summary

The purpose of this study is to assess the efficacy and dose response of intranasal esketamine (Panel A: 28 mg, 56 mg, and 84 mg and Panel B: 14 mg and 56 mg) compared with placebo in improving depressive symptoms in participants with treatment-resistant depression (TRD).

Read the detailed description

This will be a 2-panel, randomized ( participants are assigned different treatments based on chance), double-blind (neither investigator nor participant knows which treatment the participant receives), placebo-controlled (placebo is an inactive substance that is compared with a drug to test whether the drug has a real effect in a clinical trial), multicenter study. Approximately 100 male and female adult participants diagnosed with TRD will participate in this study. For participants in both panels (Panel A and Panel B), there will be 4 study phases: a 4-week screening phase, a double-blind treatment phase (Day 1 to Day 15), an optional open-label treatment phase (Panel A: Day 15 to 74; Panel B: Day 15 to 25), and an 8-week post-treatment (follow-up) phase. Depending on the treatment Panel, patients will be assigned to intranasal placebo or intranasal esketamine 14 mg, 28 mg, 56 mg, or 84 mg. Safety assessments will be performed throughout the study. The maximum study duration for a participant will be 23 weeks for Panel A and 16 weeks for Panel B.

02

Conditions studied

  • Treatment Resistant Depressive Disorder

Keywords

  • Treatment resistant depressive disorder
  • Intranasal esketamine
  • Efficacy
  • SYNAPSE
  • JNJ-54135419
03

In context

Depression

8,057 studies on the registry are indexed under Depression; 1,641 are open to participants now.

This study's enrollment of 108 is above the median of 84 across 6,720 interventional studies indexed under Depression.

Browse Depression studies →

Lead sponsor

Janssen Research & Development, LLC is the lead sponsor of 912 studies on the registry; 76 are open to participants now.

Of its 278 completed or terminated interventional studies of FDA-regulated products, 131 (47%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

--Participant must meet Diagnostic and Statistical Manual of Mental Disorders -Fourth Edition -Text Revised (DSM-IV-TR) diagnostic criteria for Major Depressive Disorder (MDD), without psychotic features, based upon clinical assessment, and confirmed by the Mini International Neuropsychiatric Interview (MINI)-Participant's major depressive episode and treatment response must be deemed "valid" by remote independent raters-Participant must have had an inadequate response to at least 2 antidepressants, at least one of which is in the current episode of depression; the antidepressant treatment response questionnaire (ATRQ) will be used to assess antidepressant treatment response during the current episode; prior medication history will be used to determine antidepressant treatment response in prior episode(s) -Have an Inventory of Depressive Symptoms-Clinician rated, 30-item (IDS-C30) total score >=34 at Screening and predose at Day 1

Exclusion criteria

Exclusion Criteria:

-Participant has a current DSM-IV-TR diagnosis of bipolar and related disorders, intellectual disability, or cluster b personality disorder (e.g., borderline personality disorder, antisocial personality disorder, histrionic personality disorder, and narcissistic personality disorder) -Participant has a current or prior DSM-IV-TR diagnosis of a psychotic disorder, MDD with psychosis, post-traumatic stress disorder (PTSD), or obsessive compulsive disorder (OCD) -Anatomical or medical conditions that may impede delivery or absorption of study medication (e.g., undergone facial reconstruction, rhinoplasty, significant structural or functional abnormalities of the nose or upper airway; obstructions or mucosal lesions of the nostrils or nasal passages; undergone sinus surgery in the previous 2 years; signs and symptoms of rhinitis) -Has an abnormal or deviated nasal septum with any 1 or more of the following symptoms: blockage of 1 or both nostrils, nasal congestion (especially 1-sided), frequent nosebleeds, frequent sinus infections, and at times has facial pain, headaches, and postnasal drip -Has a history of substance abuse (drug or alcohol) or dependence (except nicotine or caffeine) within the previous 1 year of the screening visit -Participant has known allergies, hypersensitivity, intolerance, or contraindication to esketamine/ketamine or its excipients

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
108 participants (actual)

Study arms

  • Experimental
    Esketamine 14 mg

    Participants in Panel B will self-administer intranasal esketamine 14 milligram or placebo on Days 1, 4, 8, and 11 during the double-blind phase and intranasal esketamine on Days 15, 18, 22, and 25 during the optional open-label phase. During the optional open-label phase, participants will start with treatment with a 56-mg dose of intranasal esketamine on Day 15 (the dose of esketamine can be adjusted if desired based on the Investigator's clinical judgment of efficacy and tolerability).

    Drug: Esketamine 14 mg · Drug: Esketamine 56 mg · Drug: Placebo

  • Experimental
    Esketamine 28 mg

    Participants in Panel A will self-administer intranasal esketamine 28 mg or placebo on Days 1, 4, 8, and 11 during the double-blind phase and intranasal esketamine on Days 15, 18, 22, 25, 32, 39, 46, 60, and 74 during the optional open-label phase. During the optional open-label phase, all participants will start treatment with a 56-mg dose of intranasal esketamine on Day 15 (the dose of esketamine can be adjusted if desired based on the Investigator's clinical judgment of efficacy and tolerability).

    Drug: Esketamine 28 mg · Drug: Esketamine 56 mg · Drug: Placebo

  • Experimental
    Esketamine 56 mg

    Participants in Panel A and Panel B will self-administer intranasal esketamine 56 mg or placebo on Days 1, 4, 8, and 11 during the double-blind phase. During the optional open-label phase, participants in Panel A will self-administer intranasal esketamine on Days 15, 18, 22, 25, 32, 39, 46, 60, and 74 and participants in Panel B will self-administer intranasal esketamine on Days 15, 18, 22, and 25. During the optional open-label phase, all participants will start treatment with a 56-mg dose of intranasal esketamine on Day 15 (the dose of esketamine can be adjusted if desired based on the Investigator's clinical judgment of efficacy and tolerability).

    Drug: Esketamine 56 mg · Drug: Placebo

  • Experimental
    Esketamine 84 mg

    Participants in Panel A will self-administer intranasal esketamine 84 mg or placebo on Days 1, 4, 8, and 11 during the double-blind phase and intranasal esketamine on Days 15, 18, 22, 25, 32, 39, 46, 60, and 74 during the optional open-label phase. During the optional open-label phase, all participants will start treatment with a 56-mg dose of intranasal esketamine on Day 15 (the dose of esketamine can be adjusted if desired based on the Investigator's clinical judgment of efficacy and tolerability).

    Drug: Esketamine 56 mg · Drug: Esketamine 84 mg · Drug: Placebo

  • Placebo comparator
    Placebo

    Participants in Panel A and B will self-administer intranasal placebo on Days 1 and 4 during the double-blind phase. Depending on response on Day 8, participants will receive intranasal placebo on Days 8 and 11 or be re-randomized to receive intranasal placebo or esketamine at a dose of 28 mg, 56 mg, or 84 mg (Panel A) or 14 mg or 56 mg (Panel B) on Day 8 and Day 11.

    Drug: Esketamine 14 mg · Drug: Esketamine 28 mg · Drug: Esketamine 56 mg · Drug: Esketamine 84 mg · Drug: Placebo

Interventions

  • DrugEsketamine 14 mg

    1 to 6 sprays of esketamine 14 mg self-administered as an intranasal formulation for 4 days (Days 1, 4, 8, 11) during the double-blind phase and if applicable during the optional open-label phase for up to 4 days

  • DrugEsketamine 28 mg

    1 to 6 sprays of esketamine 28 mg self-administered as an intranasal formulation for 4 days (Days 1,4, 8, 11) during the double-blind phase and if applicable, during the optional open-label phase for up to 9 days

  • DrugEsketamine 56 mg

    1 to 6 sprays of esketamine 56 mg self-administered as an intranasal formulation for up to 4 days (Days 1, 4, 8, 11) during the double-blind phase and if applicable, during the optional open-label phase for up to 9 days

  • DrugEsketamine 84 mg

    1 to 6 sprays of esketamine 84 mg self-administered as an intranasal formulation for up to 4 days (Days 1, 4, 8, 11) during the double-blind phase and if applicable, during the optional open-label phase for up to 9 days

  • DrugPlacebo

    1 to 6 sprays of placebo self-administered as an intranasal formulation for 2 days (Days 1 and 4) or depending on response on Day 8, for 4 days (Days 1,4, 8, 11) during the double-blind phase

06

What researchers measure

Primary outcomes

  1. Panel A and B: Change From Baseline (Day 1) in Montgomery Asberg Depression Rating Scale (MADRS) Total Score at Day 8- Analysis of Covariance (ANCOVA) Analysis

    MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition. A negative change in score indicates improvement.

    Time frame: Baseline (Day 1) and Endpoint (Day 8) of Period 1

  2. Panel A and B: Change From Baseline (Day 8) in Montgomery Asberg Depression Rating Scale Total Score at Day 15- ANCOVA Analysis

    MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition. A negative change in score indicates improvement.

    Time frame: Baseline (Day 8) and Endpoint (Day 15) of Period 2

Secondary outcomes

  1. Panel A and B: Percentage of Participants With Sustained Response Based on MADRS Total Score in Participants Who Have Completed the Double-Blind Phase and Received the Same Treatment for Both Periods

    Sustained response was defined as at least 50% improvement from baseline in the MADRS total score with onset by Day 2 that is maintained to study Day 15. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

    Time frame: Day 2 Up to Day 15

  2. Panel A and B: Percentage of Participants With Sustained Response Based on MADRS Total Score in Participants Who Received the Same Treatment for Both Periods, Including Participants Who Did Not Complete the Double-blind Phase

    Sustained response was defined as at least 50 percent (%) improvement from baseline in the MADRS total score with onset by Day 2 that is maintained to study Day 15. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

    Time frame: Day 2 Up to Day 15

  3. Panel A and B: Percentage of Participants With Response Based on MADRS Total Score

    A participant is defined a responder at a given time point if the percent improvement in MADRS is greater than or equal to (\>=) 50%. Participant who do not meet such criterion, worsen or discontinue during the DB phase for any reason was considered as non-responders, that is, was assigned a value of 0. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

    Time frame: Period 1: Days 1 (2 hour), 2 and 8 of Double-blind Phase

  4. Panel A and B: Percentage of Participants With Response Based on MADRS Total Score

    A participant is defined a responder at a given time point if the percent improvement in MADRS is \>=50%. Participant who do not meet such criterion, worsen or discontinue during the DB phase for any reason was considered as non-responders, that is, was assigned a value of 0. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

    Time frame: Period 2: Days 1 (2 hour), 2 and 8 of Double-blind Phase

  5. Panel A and B: Percentage of Participants in Remission Based on MADRS Total Score at Days 1, 2 and 8 of Double-blind Phase

    Participants who had a MADRS total score of \<=10 were considered remitters. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

    Time frame: Days 1, 2 and 8 of Double-blind Phase of Period 1

  6. Panel A and B: Percentage of Participants in Remission Based on MADRS Total Score at Days 1, 2 and 8 of Double-blind Phase

    Participants who had a MADRS total score of less than or equal to (\<=10) were considered remitters. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition. A negative change in score indicates improvement.

    Time frame: Days 1, 2 and 8 of Double-blind Phase of Period 2

  7. Panel A and B: Change From Baseline (Day 1) in Quick Inventory of Depressive Symptomatology-16-item Self Report (QIDS-SR16) Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis

    QIDS-SR16 is self-rated scale assesses severity of depressive symptoms. Total scores range from 0-27. Higher score indicates greater severity of depression. Negative change in score indicates improvement. Total score obtained by adding scores for each of 9 symptom domains of Diagnostic and Statistical Manual of Mental Disorders-4th edition major depressive disorder (DSM-IV MDD) criteria: depressed mood, loss of interest/pleasure, concentration/decision making, self-outlook, suicidal ideation, energy/fatigability, sleep, weight/appetite change, psychomotor changes. 16 items used to rate 9 criterion domains: 4 items used to rate sleep disturbance (early/middle/late insomnia/hypersomnia); 2 items used to rate psychomotor disturbance (agitation, retardation); 4 items used to rate appetite/weight disturbance. 1 item used to rate 6 domains (depressed mood, decreased interest, decreased energy, worthlessness/guilt, concentration/decision making, suicidal ideation). Each item was rated 0-3.

    Time frame: Baseline (Day 1) and Endpoint (Day 8) of Period 1

  8. Panel A and B: Change From Baseline (Day 8) in Quick Inventory of Depressive Symptomatology-16-item Self Report Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis

    QIDS-SR16 is self-rated scale assesses severity of depressive symptoms. Total scores range from 0-27. Higher score indicates greater severity of depression. Negative change in score indicates improvement. Total score obtained by adding scores for each of 9 symptom domains of Diagnostic and Statistical Manual of Mental Disorders-4th edition major depressive disorder (DSM-IV MDD) criteria: depressed mood, loss of interest/pleasure, concentration/decision making, self-outlook, suicidal ideation, energy/fatigability, sleep, weight/appetite change, psychomotor changes. 16 items used to rate 9 criterion domains: 4 items used to rate sleep disturbance (early/middle/late insomnia/hypersomnia); 2 items used to rate psychomotor disturbance (agitation, retardation); 4 items used to rate appetite/weight disturbance. 1 item used to rate 6 domains (depressed mood, decreased interest, decreased energy, worthlessness/guilt, concentration/decision making, suicidal ideation). Each item was rated 0-3.

    Time frame: Baseline (Day 8) and Endpoint (Day 15) of Period 2

  9. Panel A and B: Change From Baseline (Day 1) in Clinical Global Impression - Severity (CGI-S) Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks

    CGI-S provides measure of severity of participant's illness including participant's history, psychosocial circumstances, symptoms, behavior and impact of symptoms on ability to function. CGI-S evaluates severity of psychopathology on scale of 0 to 7. Considering total clinical experience, participant is assessed on severity of mental illness according to: 0=not assessed; 1=normal (not at all ill); 2=borderline mentally ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among most extremely ill patients. CGI-S permits global evaluation of participant's condition at given time. A negative change in score indicates improvement.

    Time frame: Baseline (Day 1) and Endpoint (Day 8) of Period 1

  10. Panel A and B: Change From Baseline (Day 8) in Clinical Global Impression - Severity Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks

    CGI-S provides measure of severity of participant's illness including participant's history, psychosocial circumstances, symptoms, behavior and impact of symptoms on ability to function. CGI-S evaluates severity of psychopathology on scale of 0 to 7. Considering total clinical experience, participant is assessed on severity of mental illness according to: 0=not assessed; 1=normal (not at all ill); 2=borderline mentally ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among most extremely ill patients. CGI-S permits global evaluation of participant's condition at given time. A negative change in score indicates improvement.

    Time frame: Baseline (Day 8) and Endpoint (Day 15) of Period 2

  11. Panel A and B: Change From Baseline (Day 1) in Generalized Anxiety Disorder (GAD-7) Total Score at Day 8 (Double-Blind Treatment Phase) ANCOVA Analysis

    GAD-7 is a brief and validated 7-item self-report assessment of overall anxiety. Participants respond to each item using a 4-point scale with response categories of 0=not at all, 1=several days, 2=more than half the days, and 3=nearly every day. Item responses are summed to yield a total score with a range of 0 to 21, where higher scores indicate more anxiety. The recall period is 2 weeks. The severity of the GAD-7 is categorized as follows: None (0-4), Mild (5-9), Moderate (10-14) and Severe (15 -21).

    Time frame: Baseline (Day 1) and Endpoint (Day 8) of Period 1

  12. Panel A and B: Change From Baseline (Day 8) in Generalized Anxiety Disorder-7 Total Score at Day 15 (Double-Blind Treatment Phase)- ANCOVA Analysis

    GAD-7 is a brief and validated 7-item self-report assessment of overall anxiety. Participants respond to each item using a 4-point scale with response categories of 0=not at all, 1=several days, 2=more than half the days, and 3=nearly every day. Item responses are summed to yield a total score with a range of 0 to 21, where higher scores indicate more anxiety. The recall period is 2 weeks. The severity of the GAD-7 is categorized as follows: None (0-4), Mild (5-9), Moderate (10-14) and Severe (15 -21).

    Time frame: Baseline (Day 8) and Endpoint (Day 15) of Period 2

  13. Panel A and B: Change From Baseline (Day 1) in Patient Global Impression of Severity (PGI-S) Score Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks

    PGI-S is a patient-rated scale that assesses the severity of their illness at the time of assessment, relative to participants past experience. It is a 4-point (1 to 4) scale in response to the question 'Considering all aspects of your depression right now would you say your depression is?' with scores as follows: 1: none; 2: mild; 3: moderate; 4: severe. A higher score implies a more severe condition.

    Time frame: Baseline (Day 1) and Endpoint (Day 8) of Period 1

  14. Panel A and B: Change From Baseline (Day 8) in Patient Global Impression of Severity Score Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks

    PGI-S is a patient-rated scale that assesses the severity of their illness at the time of assessment, relative to participants past experience. It is a 4-point (1 to 4) scale in response to the question 'Considering all aspects of your depression right now would you say your depression is?' with scores as follows: 1: none; 2: mild; 3: moderate; 4: severe. A higher score implies a more severe condition. A negative change in score indicates improvement.

    Time frame: Baseline (Day 8) and Endpoint (Day 15) of Period 2

07

Results

Posted Jun 12, 2019

Participant flow

Period 1 (Panel A and B)
Participant flow — Period 1 (Panel A and B)
MilestonePlacebo (Panel A: Period 1)Esketamine 28 mg (Panel A: Period 1)Esketamine 56 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 1)Placebo (Panel B: Period 1)Esketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel B: Period 1)Placebo (Panel A: Period 2) QIDS >= 11 ParticipantsPlacebo (Panel A: Period 2) QIDS<11 ParticipantsPlacebo to Esketamine 28mg (Panel A: Period 2)Placebo to Esketamine 56 mg (Panel A: Period 2)Placebo to Esketamine 84 mg (Panel A: Period 2)Esketamine 28 mg (Panel A: Period 2)Esketamine 56 mg (Panel A: Period 2)Esketamine 84 mg (Panel A: Period 2)Placebo (Panel B: Period 2) QIDS >=11 ParticipantsPlacebo (Panel B: Period 2) QIDS<11 ParticipantsPlacebo to Esketamine 14mg (Panel B: Period 2)Placebo to Esketamine 56mg (Panel B: Period 2)Esketamine 14 mg (Panel B: Period 2)Esketamine 56 mg (Panel B: Period 2)Placebo/Placebo/Open Label Esketamine (Panel A)Placebo/Esketamine/Open Label Esketamine (Panel A)Esketamine/Esketamine/Open Label Esketamine (Panel A)Placebo/Placebo/Open Label Esketamine (Panel B)Placebo/Esketamine/Open Label Esketamine (Panel B)Esketamine/Esketamine/Open Label Esketamine (Panel B)Placebo: Follow up PhaseEsketamine 14 mg: Follow up PhaseEsketamine 28 mg: Follow up PhaseEsketamine 56 mg: Follow up PhaseEsketamine 84 mg: Follow up Phase
Started33111112211190000000000000000000000000
Rerandomized to esketamine 56 mg90000000000000000000000000000000
Rerandomized to esketamine 28mg80000000000000000000000000000000
Rerandomized to esketamine 84mg50000000000000000000000000000000
Completed3281112211190000000000000000000000000
Not completed13000000000000000000000000000000
Withdrew: Withdrawal by subject01000000000000000000000000000000
Withdrew: Lack of efficacy01000000000000000000000000000000
Withdrew: Adverse event01000000000000000000000000000000
Withdrew: Other10000000000000000000000000000000
Period 2 (Panel A and B)
Participant flow — Period 2 (Panel A and B)
MilestonePlacebo (Panel A: Period 1)Esketamine 28 mg (Panel A: Period 1)Esketamine 56 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 1)Placebo (Panel B: Period 1)Esketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel B: Period 1)Placebo (Panel A: Period 2) QIDS >= 11 ParticipantsPlacebo (Panel A: Period 2) QIDS<11 ParticipantsPlacebo to Esketamine 28mg (Panel A: Period 2)Placebo to Esketamine 56 mg (Panel A: Period 2)Placebo to Esketamine 84 mg (Panel A: Period 2)Esketamine 28 mg (Panel A: Period 2)Esketamine 56 mg (Panel A: Period 2)Esketamine 84 mg (Panel A: Period 2)Placebo (Panel B: Period 2) QIDS >=11 ParticipantsPlacebo (Panel B: Period 2) QIDS<11 ParticipantsPlacebo to Esketamine 14mg (Panel B: Period 2)Placebo to Esketamine 56mg (Panel B: Period 2)Esketamine 14 mg (Panel B: Period 2)Esketamine 56 mg (Panel B: Period 2)Placebo/Placebo/Open Label Esketamine (Panel A)Placebo/Esketamine/Open Label Esketamine (Panel A)Esketamine/Esketamine/Open Label Esketamine (Panel A)Placebo/Placebo/Open Label Esketamine (Panel B)Placebo/Esketamine/Open Label Esketamine (Panel B)Esketamine/Esketamine/Open Label Esketamine (Panel B)Placebo: Follow up PhaseEsketamine 14 mg: Follow up PhaseEsketamine 28 mg: Follow up PhaseEsketamine 56 mg: Follow up PhaseEsketamine 84 mg: Follow up Phase
Started00000006489581112585311900000000000
Completed00000006488581110585211900000000000
Not completed00000000001000200010000000000000
Withdrew: Adverse event00000000001000100000000000000000
Withdrew: Withdrawal by subject00000000000000100010000000000000
Open Label Phase (Optional)
Participant flow — Open Label Phase (Optional)
MilestonePlacebo (Panel A: Period 1)Esketamine 28 mg (Panel A: Period 1)Esketamine 56 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 1)Placebo (Panel B: Period 1)Esketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel B: Period 1)Placebo (Panel A: Period 2) QIDS >= 11 ParticipantsPlacebo (Panel A: Period 2) QIDS<11 ParticipantsPlacebo to Esketamine 28mg (Panel A: Period 2)Placebo to Esketamine 56 mg (Panel A: Period 2)Placebo to Esketamine 84 mg (Panel A: Period 2)Esketamine 28 mg (Panel A: Period 2)Esketamine 56 mg (Panel A: Period 2)Esketamine 84 mg (Panel A: Period 2)Placebo (Panel B: Period 2) QIDS >=11 ParticipantsPlacebo (Panel B: Period 2) QIDS<11 ParticipantsPlacebo to Esketamine 14mg (Panel B: Period 2)Placebo to Esketamine 56mg (Panel B: Period 2)Esketamine 14 mg (Panel B: Period 2)Esketamine 56 mg (Panel B: Period 2)Placebo/Placebo/Open Label Esketamine (Panel A)Placebo/Esketamine/Open Label Esketamine (Panel A)Esketamine/Esketamine/Open Label Esketamine (Panel A)Placebo/Placebo/Open Label Esketamine (Panel B)Placebo/Esketamine/Open Label Esketamine (Panel B)Esketamine/Esketamine/Open Label Esketamine (Panel B)Placebo: Follow up PhaseEsketamine 14 mg: Follow up PhaseEsketamine 28 mg: Follow up PhaseEsketamine 56 mg: Follow up PhaseEsketamine 84 mg: Follow up Phase
Started0000000000000000000001020271371900000
Completed000000000000000000000711231371900000
Not completed00000000000000000000039400000000
Withdrew: Adverse event00000000000000000000000100000000
Withdrew: Other00000000000000000000005100000000
Withdrew: Lost to follow-up00000000000000000000001000000000
Withdrew: Lack of efficacy00000000000000000000012000000000
Withdrew: Withdrawal by subject00000000000000000000021200000000
Follow-up Phase
Participant flow — Follow-up Phase
MilestonePlacebo (Panel A: Period 1)Esketamine 28 mg (Panel A: Period 1)Esketamine 56 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 1)Placebo (Panel B: Period 1)Esketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel B: Period 1)Placebo (Panel A: Period 2) QIDS >= 11 ParticipantsPlacebo (Panel A: Period 2) QIDS<11 ParticipantsPlacebo to Esketamine 28mg (Panel A: Period 2)Placebo to Esketamine 56 mg (Panel A: Period 2)Placebo to Esketamine 84 mg (Panel A: Period 2)Esketamine 28 mg (Panel A: Period 2)Esketamine 56 mg (Panel A: Period 2)Esketamine 84 mg (Panel A: Period 2)Placebo (Panel B: Period 2) QIDS >=11 ParticipantsPlacebo (Panel B: Period 2) QIDS<11 ParticipantsPlacebo to Esketamine 14mg (Panel B: Period 2)Placebo to Esketamine 56mg (Panel B: Period 2)Esketamine 14 mg (Panel B: Period 2)Esketamine 56 mg (Panel B: Period 2)Placebo/Placebo/Open Label Esketamine (Panel A)Placebo/Esketamine/Open Label Esketamine (Panel A)Esketamine/Esketamine/Open Label Esketamine (Panel A)Placebo/Placebo/Open Label Esketamine (Panel B)Placebo/Esketamine/Open Label Esketamine (Panel B)Esketamine/Esketamine/Open Label Esketamine (Panel B)Placebo: Follow up PhaseEsketamine 14 mg: Follow up PhaseEsketamine 28 mg: Follow up PhaseEsketamine 56 mg: Follow up PhaseEsketamine 84 mg: Follow up Phase
Started00000000000000000000000000014123942
Completed00000000000000000000000000014123942
Not completed00000000000000000000000000000000

Outcome measures

PrimaryPanel A and B: Change From Baseline (Day 1) in Montgomery Asberg Depression Rating Scale (MADRS) Total Score at Day 8- Analysis of Covariance (ANCOVA) Analysis

MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition. A negative change in score indicates improvement.

Time frame:
Baseline (Day 1) and Endpoint (Day 8) of Period 1
Reported as:
Least squares mean · Unit on a scale
Panel A and B: Change From Baseline (Day 1) in Montgomery Asberg Depression Rating Scale (MADRS) Total Score at Day 8- Analysis of Covariance (ANCOVA) Analysis
Unit on a scalePanel A: Period 1 PlaceboPanel A: Period 1 Esketamine 28 mgPanel A: Period 1 Esketamine 56 mgPanel A: Period 1 Esketamine 84 mgPanel B: Period 1 PlaceboPanel B: Period 1 Esketamine 14 mgPanel B: Period 1 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 1) in Montgomery Asberg Depression Rating Scale (MADRS) Total Score at Day 8- Analysis of Covariance (ANCOVA) Analysis-4.9 ± 1.74-9.8 ± 2.72-12.4 ± 2.66-15.3 ± 2.56-6.6 ± 1.53-4.8 ± 2.13-10.3 ± 2.36
PrimaryPanel A and B: Change From Baseline (Day 8) in Montgomery Asberg Depression Rating Scale Total Score at Day 15- ANCOVA Analysis

MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition. A negative change in score indicates improvement.

Time frame:
Baseline (Day 8) and Endpoint (Day 15) of Period 2
Reported as:
Least squares mean · Unit on a scale
Panel A and B: Change From Baseline (Day 8) in Montgomery Asberg Depression Rating Scale Total Score at Day 15- ANCOVA Analysis
Unit on a scalePanel A: Period 2 PlaceboPanel A:Period 2 Esketamine 28 mgPanel A: Period 2 Esketamine 56 mgPanel A: Period 2 Esketamine 84 mgPanel B: Period 2 PlaceboPanel B: Period 2 Esketamine 14 mgPanel B:Period 2 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 8) in Montgomery Asberg Depression Rating Scale Total Score at Day 15- ANCOVA Analysis-4.5 ± 2.92-7.6 ± 2.49-8.9 ± 2.51-11.4 ± 2.68-0.7 ± 3.32-6.6 ± 4.02-1.2 ± 6.04
SecondaryPanel A and B: Percentage of Participants With Sustained Response Based on MADRS Total Score in Participants Who Have Completed the Double-Blind Phase and Received the Same Treatment for Both Periods

Sustained response was defined as at least 50% improvement from baseline in the MADRS total score with onset by Day 2 that is maintained to study Day 15. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

Time frame:
Day 2 Up to Day 15
Reported as:
Number · Percentage of participants
Panel A and B: Percentage of Participants With Sustained Response Based on MADRS Total Score in Participants Who Have Completed the Double-Blind Phase and Received the Same Treatment for Both Periods
Percentage of participantsPanel A: Placebo (Period 1 and 2)Panel A: Esketamine 28 mg (Period 1 and 2)Panel A: Esketamine 56 mg (Period 1 and 2)Panel A: Esketamine 84 mg (Period 1 and 2)Panel B: Placebo (Period 1 and 2)Panel B: Esketamine 14 mg (Period 1 and 2)Panel B: Esketamine 56 mg (Period 1 and 2)
Panel A and B: Percentage of Participants With Sustained Response Based on MADRS Total Score in Participants Who Have Completed the Double-Blind Phase and Received the Same Treatment for Both Periods012.59.130.015.418.222.2
SecondaryPanel A and B: Percentage of Participants With Sustained Response Based on MADRS Total Score in Participants Who Received the Same Treatment for Both Periods, Including Participants Who Did Not Complete the Double-blind Phase

Sustained response was defined as at least 50 percent (%) improvement from baseline in the MADRS total score with onset by Day 2 that is maintained to study Day 15. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

Time frame:
Day 2 Up to Day 15
Reported as:
Number · Percentage of participants
Panel A and B: Percentage of Participants With Sustained Response Based on MADRS Total Score in Participants Who Received the Same Treatment for Both Periods, Including Participants Who Did Not Complete the Double-blind Phase
Percentage of participantsPanel A: Placebo (Period 1 and 2)Panel A: Esketamine 28 mg (Period 1 and 2)Panel A: Esketamine 56 mg (Period 1 and 2)Panel A: Esketamine 84 mg (Period 1 and 2)Panel B: Placebo (Period 1 and 2)Panel B: Esketamine 14 mg (Period 1 and 2)Panel B: Esketamine 56 mg (Period 1 and 2)
Panel A and B: Percentage of Participants With Sustained Response Based on MADRS Total Score in Participants Who Received the Same Treatment for Both Periods, Including Participants Who Did Not Complete the Double-blind Phase012.59.125.015.418.222.2
SecondaryPanel A and B: Percentage of Participants With Response Based on MADRS Total Score

A participant is defined a responder at a given time point if the percent improvement in MADRS is greater than or equal to (\>=) 50%. Participant who do not meet such criterion, worsen or discontinue during the DB phase for any reason was considered as non-responders, that is, was assigned a value of 0. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

Time frame:
Period 1: Days 1 (2 hour), 2 and 8 of Double-blind Phase
Reported as:
Number · Percentage of participants
Panel A and B: Percentage of Participants With Response Based on MADRS Total Score
Percentage of participantsPanel A: Period 1 PlaceboPanel A: Period 1 Esketamine 28 mgPanel A: Period 1 Esketamine 56 mgPanel A: Period 1 Esketamine 84 mgPanel B: Period 1 PlaceboPanel B: Period 1 Esketamine 14 mgPanel B: Period 1 Esketamine 56 mg
Day 1 (2 hour)18.254.536.458.333.336.444.4
Day 23.036.427.341.728.636.444.4
Day 86.19.118.241.723.818.222.2
SecondaryPanel A and B: Percentage of Participants With Response Based on MADRS Total Score

A participant is defined a responder at a given time point if the percent improvement in MADRS is \>=50%. Participant who do not meet such criterion, worsen or discontinue during the DB phase for any reason was considered as non-responders, that is, was assigned a value of 0. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

Time frame:
Period 2: Days 1 (2 hour), 2 and 8 of Double-blind Phase
Reported as:
Number · Percentage of participants
Panel A and B: Percentage of Participants With Response Based on MADRS Total Score
Percentage of participantsPanel A: Period 2 PlaceboPanel A: Period 2 Esketamine 28 mgPanel A: Period 2 Esketamine 56 mgPanel A: Period 2 Esketamine 84 mgPanel B: Period 2 PlaceboPanel B: Period 2 Esketamine 14 mgPanel B: Period 2 Esketamine 56 mg
Day 1 (2 hour)16.712.522.240.0060.00
Day 20011.140.0080.00
Day 8012.5020.00033.3
SecondaryPanel A and B: Percentage of Participants in Remission Based on MADRS Total Score at Days 1, 2 and 8 of Double-blind Phase

Participants who had a MADRS total score of \<=10 were considered remitters. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition.

Time frame:
Days 1, 2 and 8 of Double-blind Phase of Period 1
Reported as:
Number · Percentage of participants
Panel A and B: Percentage of Participants in Remission Based on MADRS Total Score at Days 1, 2 and 8 of Double-blind Phase
Percentage of participantsPanel A: Period 1: PlaceboPanel A: Period 1 Esketamine 28 mgPanel A: Period 1: Esketamine 56 mgPanel A: Period 1 Esketamine 84 mgPanel B: Period 1 PlaceboPanel B: Period 1 Esketamine 14 mgPanel B: Period 1 Esketamine 56 mg
Day 13.027.318.225.019.036.433.3
Day 2036.418.225.019.027.333.3
Day 83.09.19.125.014.318.222.2
SecondaryPanel A and B: Percentage of Participants in Remission Based on MADRS Total Score at Days 1, 2 and 8 of Double-blind Phase

Participants who had a MADRS total score of less than or equal to (\<=10) were considered remitters. MADRS is clinician-rated scale designed to measure depression severity, and to detect changes due to antidepressant treatment. Scale consists of 10 items (apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, interest level, pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item is not present or is normal) to 6 (severe or continuous presence of symptoms), summed for a total possible score of 0 to 60. Higher scores represent more severe condition. A negative change in score indicates improvement.

Time frame:
Days 1, 2 and 8 of Double-blind Phase of Period 2
Reported as:
Number · Percentage of participants
Panel A and B: Percentage of Participants in Remission Based on MADRS Total Score at Days 1, 2 and 8 of Double-blind Phase
Percentage of participantsPanel A: Period 2 PlaceboPanel A: Period 2 Esketamine 28 mgPanel A: Period 2 Esketamine 56 mgPanel A: Period 2 Esketamine 84 mgPanel B: Period 2 PlaceboPanel B: Period 2 Esketamine 14 mgPanel B: Period 2 Esketamine 56 mg
Day 116.712.5040.0060.00
Day 200020.0080.00
Day 8012.5020.0000
SecondaryPanel A and B: Change From Baseline (Day 1) in Quick Inventory of Depressive Symptomatology-16-item Self Report (QIDS-SR16) Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis

QIDS-SR16 is self-rated scale assesses severity of depressive symptoms. Total scores range from 0-27. Higher score indicates greater severity of depression. Negative change in score indicates improvement. Total score obtained by adding scores for each of 9 symptom domains of Diagnostic and Statistical Manual of Mental Disorders-4th edition major depressive disorder (DSM-IV MDD) criteria: depressed mood, loss of interest/pleasure, concentration/decision making, self-outlook, suicidal ideation, energy/fatigability, sleep, weight/appetite change, psychomotor changes. 16 items used to rate 9 criterion domains: 4 items used to rate sleep disturbance (early/middle/late insomnia/hypersomnia); 2 items used to rate psychomotor disturbance (agitation, retardation); 4 items used to rate appetite/weight disturbance. 1 item used to rate 6 domains (depressed mood, decreased interest, decreased energy, worthlessness/guilt, concentration/decision making, suicidal ideation). Each item was rated 0-3.

Time frame:
Baseline (Day 1) and Endpoint (Day 8) of Period 1
Reported as:
Least squares mean · Unit on a scale
Panel A and B: Change From Baseline (Day 1) in Quick Inventory of Depressive Symptomatology-16-item Self Report (QIDS-SR16) Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis
Unit on a scalePanel A: Period 1 PlaceboPanel A: Period 1 Esketamine 28 mgPanel A: Period 1 Esketamine 56 mgPanel A: Period 1 Esketamine 84 mgPanel B: Period 1 PlaceboPanel B: Period 1 Esketamine 14 mgPanel B: Period 1 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 1) in Quick Inventory of Depressive Symptomatology-16-item Self Report (QIDS-SR16) Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis-1.8 ± 0.93-4.0 ± 1.43-4.4 ± 1.43-4.2 ± 1.39-1.1 ± 0.78-0.6 ± 1.10-3.0 ± 1.20
SecondaryPanel A and B: Change From Baseline (Day 8) in Quick Inventory of Depressive Symptomatology-16-item Self Report Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis

QIDS-SR16 is self-rated scale assesses severity of depressive symptoms. Total scores range from 0-27. Higher score indicates greater severity of depression. Negative change in score indicates improvement. Total score obtained by adding scores for each of 9 symptom domains of Diagnostic and Statistical Manual of Mental Disorders-4th edition major depressive disorder (DSM-IV MDD) criteria: depressed mood, loss of interest/pleasure, concentration/decision making, self-outlook, suicidal ideation, energy/fatigability, sleep, weight/appetite change, psychomotor changes. 16 items used to rate 9 criterion domains: 4 items used to rate sleep disturbance (early/middle/late insomnia/hypersomnia); 2 items used to rate psychomotor disturbance (agitation, retardation); 4 items used to rate appetite/weight disturbance. 1 item used to rate 6 domains (depressed mood, decreased interest, decreased energy, worthlessness/guilt, concentration/decision making, suicidal ideation). Each item was rated 0-3.

Time frame:
Baseline (Day 8) and Endpoint (Day 15) of Period 2
Reported as:
Least squares mean · Unit on a scale
Panel A and B: Change From Baseline (Day 8) in Quick Inventory of Depressive Symptomatology-16-item Self Report Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis
Unit on a scalePanel A: Period 2 PlaceboPanel A: Period 2 Esketamine 28 mgPanel A: Period 2 Esketamine 56 mgPanel A: Period 2 Esketamine 84 mgPanel B: Period 2 PlaceboPanel B: Period 2 Esketamine 14 mgPanel B: Period 2 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 8) in Quick Inventory of Depressive Symptomatology-16-item Self Report Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis-2.0 ± 1.50-3.1 ± 1.35-2.0 ± 1.41-3.3 ± 1.48-2.1 ± 1.78-5.7 ± 1.78-1.5 ± 2.31
SecondaryPanel A and B: Change From Baseline (Day 1) in Clinical Global Impression - Severity (CGI-S) Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks

CGI-S provides measure of severity of participant's illness including participant's history, psychosocial circumstances, symptoms, behavior and impact of symptoms on ability to function. CGI-S evaluates severity of psychopathology on scale of 0 to 7. Considering total clinical experience, participant is assessed on severity of mental illness according to: 0=not assessed; 1=normal (not at all ill); 2=borderline mentally ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among most extremely ill patients. CGI-S permits global evaluation of participant's condition at given time. A negative change in score indicates improvement.

Time frame:
Baseline (Day 1) and Endpoint (Day 8) of Period 1
Reported as:
Median · Units on a scale
Panel A and B: Change From Baseline (Day 1) in Clinical Global Impression - Severity (CGI-S) Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks
Units on a scalePanel A: Period 1 PlaceboPanel A: Period 1 Esketamine 28 mgPanel A: Period 1 Esketamine 56 mgPanel A: Period 1 Esketamine 84 mgPanel B: Period 1 PlaceboPanel B: Period 1 Esketamine 14 mgPanel B: Period 1 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 1) in Clinical Global Impression - Severity (CGI-S) Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks5.0 (1 to 6)4.0 (3 to 5)4.0 (1 to 5)4.0 (1 to 6)4.0 (1 to 6)4.0 (2 to 6)3.0 (3 to 6)
SecondaryPanel A and B: Change From Baseline (Day 8) in Clinical Global Impression - Severity Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks

CGI-S provides measure of severity of participant's illness including participant's history, psychosocial circumstances, symptoms, behavior and impact of symptoms on ability to function. CGI-S evaluates severity of psychopathology on scale of 0 to 7. Considering total clinical experience, participant is assessed on severity of mental illness according to: 0=not assessed; 1=normal (not at all ill); 2=borderline mentally ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among most extremely ill patients. CGI-S permits global evaluation of participant's condition at given time. A negative change in score indicates improvement.

Time frame:
Baseline (Day 8) and Endpoint (Day 15) of Period 2
Reported as:
Median · Units on a scale
Panel A and B: Change From Baseline (Day 8) in Clinical Global Impression - Severity Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks
Units on a scalePanel A: Period 2 PlaceboPanel A: Period 2 Esketamine 28 mgPanel A: Period 2 Esketamine 56 mgPanel A: Period 2 Esketamine 84 mgPanel B: Period 2 PlaceboPanel B: Period 2 Esketamine 14 mgPanel B: Period 2 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 8) in Clinical Global Impression - Severity Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks5.0 (4 to 5)4.0 (3 to 5)5.0 (4 to 6)4.0 (3 to 5)4.0 (3 to 6)3.0 (3 to 4)4.0 (4 to 5)
SecondaryPanel A and B: Change From Baseline (Day 1) in Generalized Anxiety Disorder (GAD-7) Total Score at Day 8 (Double-Blind Treatment Phase) ANCOVA Analysis

GAD-7 is a brief and validated 7-item self-report assessment of overall anxiety. Participants respond to each item using a 4-point scale with response categories of 0=not at all, 1=several days, 2=more than half the days, and 3=nearly every day. Item responses are summed to yield a total score with a range of 0 to 21, where higher scores indicate more anxiety. The recall period is 2 weeks. The severity of the GAD-7 is categorized as follows: None (0-4), Mild (5-9), Moderate (10-14) and Severe (15 -21).

Time frame:
Baseline (Day 1) and Endpoint (Day 8) of Period 1
Reported as:
Least squares mean · Unit on a scale
Panel A and B: Change From Baseline (Day 1) in Generalized Anxiety Disorder (GAD-7) Total Score at Day 8 (Double-Blind Treatment Phase) ANCOVA Analysis
Unit on a scalePanel A: Period 1 PlaceboPanel A: Period 1 Esketamine 28 mgPanel A: Period 1 Esketamine 56 mgPanel A: Period 1 Esketamine 84 mgPanel B: Period 1 PlaceboPanel B: Period 1 Esketamine 14 mgPanel B: Period 1 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 1) in Generalized Anxiety Disorder (GAD-7) Total Score at Day 8 (Double-Blind Treatment Phase) ANCOVA Analysis-1.7 ± 0.88-1.5 ± 1.34-3.1 ± 1.34-5.1 ± 1.30-1.7 ± 0.68-1.9 ± 0.94-3.2 ± 1.03
SecondaryPanel A and B: Change From Baseline (Day 8) in Generalized Anxiety Disorder-7 Total Score at Day 15 (Double-Blind Treatment Phase)- ANCOVA Analysis

GAD-7 is a brief and validated 7-item self-report assessment of overall anxiety. Participants respond to each item using a 4-point scale with response categories of 0=not at all, 1=several days, 2=more than half the days, and 3=nearly every day. Item responses are summed to yield a total score with a range of 0 to 21, where higher scores indicate more anxiety. The recall period is 2 weeks. The severity of the GAD-7 is categorized as follows: None (0-4), Mild (5-9), Moderate (10-14) and Severe (15 -21).

Time frame:
Baseline (Day 8) and Endpoint (Day 15) of Period 2
Reported as:
Least squares mean · Unit on a scale
Panel A and B: Change From Baseline (Day 8) in Generalized Anxiety Disorder-7 Total Score at Day 15 (Double-Blind Treatment Phase)- ANCOVA Analysis
Unit on a scalePanel A: Period 2 PlaceboPanel A: Period 2 Esketamine 28 mgPanel A: Period 2 Esketamine 56 mgPanel A: Period 2 Esketamine 84 mgPanel B: Period 2 PlaceboPanel B: Period 2 Esketamine 14 mgPanel B: Period 2 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 8) in Generalized Anxiety Disorder-7 Total Score at Day 15 (Double-Blind Treatment Phase)- ANCOVA Analysis0.4 ± 1.02-1.6 ± 0.871.0 ± 0.98-0.9 ± 1.02-2.7 ± 1.68-6.6 ± 1.68-0.7 ± 2.27
SecondaryPanel A and B: Change From Baseline (Day 1) in Patient Global Impression of Severity (PGI-S) Score Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks

PGI-S is a patient-rated scale that assesses the severity of their illness at the time of assessment, relative to participants past experience. It is a 4-point (1 to 4) scale in response to the question 'Considering all aspects of your depression right now would you say your depression is?' with scores as follows: 1: none; 2: mild; 3: moderate; 4: severe. A higher score implies a more severe condition.

Time frame:
Baseline (Day 1) and Endpoint (Day 8) of Period 1
Reported as:
Median · Unit on a scale
Panel A and B: Change From Baseline (Day 1) in Patient Global Impression of Severity (PGI-S) Score Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks
Unit on a scalePanel A: Period 1 PlaceboPanel A: Period 1 Esketamine 28 mgPanel A: Period 1 Esketamine 56 mgPanel A: Period 1 Esketamine 84 mgPanel B: Period 1 PlaceboPanel B: Period 1 Esketamine 14 mgPanel B: Period 1 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 1) in Patient Global Impression of Severity (PGI-S) Score Total Score at Day 8 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks3.0 (2 to 4)3.0 (1 to 4)3.0 (1 to 3)3.0 (1 to 4)3.0 (2 to 4)3.0 (1 to 3)3.0 (2 to 3)
SecondaryPanel A and B: Change From Baseline (Day 8) in Patient Global Impression of Severity Score Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks

PGI-S is a patient-rated scale that assesses the severity of their illness at the time of assessment, relative to participants past experience. It is a 4-point (1 to 4) scale in response to the question 'Considering all aspects of your depression right now would you say your depression is?' with scores as follows: 1: none; 2: mild; 3: moderate; 4: severe. A higher score implies a more severe condition. A negative change in score indicates improvement.

Time frame:
Baseline (Day 8) and Endpoint (Day 15) of Period 2
Reported as:
Median · Unit on a scale
Panel A and B: Change From Baseline (Day 8) in Patient Global Impression of Severity Score Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks
Unit on a scalePanel A: Period 2 PlaceboPanel A: Period 2 Esketamine 28 mgPanel A: Period 2 Esketamine 56 mgPanel A: Period 2 Esketamine 84 mgPanel B: Period 2 PlaceboPanel B: Period 2 Esketamine 14 mgPanel B: Period 2 Esketamine 56 mg
Panel A and B: Change From Baseline (Day 8) in Patient Global Impression of Severity Score Total Score at Day 15 in the Double-Blind Treatment Phase- ANCOVA Analysis on Ranks3.0 (2 to 4)3.0 (2 to 4)4.0 (2 to 4)3.0 (2 to 4)3.0 (2 to 3)3.0 (2 to 3)3.0 (2 to 4)

Adverse events

Collected over Up to 21 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo (Panel A and B: Period 1)—0/54 (0%)27/54 (50%)
Esketamine 28 mg (Panel A: Period 1)—0/11 (0%)8/11 (72.7%)
Placebo (Panel A and B: Period 2) QIDS >=11 Participants—1/23 (4.3%)15/23 (65.2%)
Placebo to Esketamine 14mg (Panel B: Period 2)—0/5 (0%)5/5 (100%)
Placebo to Esketamine 28mg (Panel A: Period 2)—0/8 (0%)4/8 (50%)
Placebo to Esketamine 56mg (Panel A and B: Period 2)—0/12 (0%)11/12 (91.7%)
Placebo to Esketamine 84 mg (Panel A: Period 2)—0/5 (0%)5/5 (100%)
Placebo (Panel A and Panel B: Period 2)—1/23 (4.3%)12/23 (52.2%)
Esketamine 14 mg (Panel B: Period 2)—0/16 (0%)11/16 (68.8%)
Esketamine 28 mg (Panel A: Period 2)—0/16 (0%)8/16 (50%)
Esketamine 56 mg (Panel A and B: Period 2)—0/32 (0%)26/32 (81.3%)
Placebo/Placebo/Open Label Esketamine (Panel A and B)—0/23 (0%)23/23 (100%)
Placebo/Esketamine/Open Label Esketamine (Panel A and B)—0/27 (0%)22/27 (81.5%)
Esketamine/Esketamine/Open Label Esketamine (Panel A and B)—1/46 (2.2%)39/46 (84.8%)
Placebo: Follow up Phase—0/1 (0%)0/1 (0%)
Esketamine 14 mg: Follow up Phase—0/4 (0%)1/4 (25%)
Esketamine 28 mg: Follow up Phase—1/12 (8.3%)4/12 (33.3%)
Esketamine 56 mg: Follow up Phase—1/39 (2.6%)10/39 (25.6%)
Esketamine 84 mg: Follow up Phase—1/42 (2.4%)7/42 (16.7%)
Esketamine 14 mg (Panel B: Period 1)—0/11 (0%)6/11 (54.5%)
Esketamine 56 mg (Panel A and B: Period 1)—0/20 (0%)18/20 (90%)
Esketamine 84 mg (Panel A: Period 1)—0/12 (0%)10/12 (83.3%)
Esketamine 84 mg (Panel A: Period 2)—0/17 (0%)12/17 (70.6%)
Most frequent serious events
Most frequent serious events
EventPlacebo (Panel A and B: Period 1)Esketamine 28 mg (Panel A: Period 1)Placebo (Panel A and B: Period 2) QIDS >=11 ParticipantsPlacebo to Esketamine 14mg (Panel B: Period 2)Placebo to Esketamine 28mg (Panel A: Period 2)Placebo to Esketamine 56mg (Panel A and B: Period 2)Placebo to Esketamine 84 mg (Panel A: Period 2)Placebo (Panel A and Panel B: Period 2)Esketamine 14 mg (Panel B: Period 2)Esketamine 28 mg (Panel A: Period 2)Esketamine 56 mg (Panel A and B: Period 2)Placebo/Placebo/Open Label Esketamine (Panel A and B)Placebo/Esketamine/Open Label Esketamine (Panel A and B)Esketamine/Esketamine/Open Label Esketamine (Panel A and B)Placebo: Follow up PhaseEsketamine 14 mg: Follow up PhaseEsketamine 28 mg: Follow up PhaseEsketamine 56 mg: Follow up PhaseEsketamine 84 mg: Follow up PhaseEsketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel A and B: Period 1)Esketamine 84 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 2)
Confusional StatePsychiatric disorders0/10/30/230/50/80/120/50/110/80/160/120/230/270/460/10/41/120/390/42————
OesophagitisGastrointestinal disorders0/540/111/230/50/80/120/51/230/160/160/320/230/270/460/10/40/120/390/420/110/200/120/17
Completed SuicidePsychiatric disorders0/10/30/230/50/80/120/50/110/80/160/120/230/270/460/10/40/121/390/42————
General Physical Health DeteriorationGeneral disorders0/10/30/230/50/80/120/50/110/80/160/120/230/270/460/10/40/120/391/42————
Ectopic PregnancyPregnancy, puerperium and perinatal conditions0/10/30/230/50/80/120/50/110/80/160/120/230/271/460/10/40/120/390/42————
Most frequent other events
Showing 10 of 133
Most frequent other events
EventPlacebo (Panel A and B: Period 1)Esketamine 28 mg (Panel A: Period 1)Placebo (Panel A and B: Period 2) QIDS >=11 ParticipantsPlacebo to Esketamine 14mg (Panel B: Period 2)Placebo to Esketamine 28mg (Panel A: Period 2)Placebo to Esketamine 56mg (Panel A and B: Period 2)Placebo to Esketamine 84 mg (Panel A: Period 2)Placebo (Panel A and Panel B: Period 2)Esketamine 14 mg (Panel B: Period 2)Esketamine 28 mg (Panel A: Period 2)Esketamine 56 mg (Panel A and B: Period 2)Placebo/Placebo/Open Label Esketamine (Panel A and B)Placebo/Esketamine/Open Label Esketamine (Panel A and B)Esketamine/Esketamine/Open Label Esketamine (Panel A and B)Placebo: Follow up PhaseEsketamine 14 mg: Follow up PhaseEsketamine 28 mg: Follow up PhaseEsketamine 56 mg: Follow up PhaseEsketamine 84 mg: Follow up PhaseEsketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel A and B: Period 1)Esketamine 84 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 2)
DizzinessNervous system disorders1/544/110/232/50/84/123/50/232/162/1611/327/239/2714/460/10/40/120/390/421/117/205/125/17
DysgeusiaNervous system disorders9/542/116/231/51/82/123/54/232/161/164/324/236/279/460/10/40/120/390/421/114/203/124/17
NauseaGastrointestinal disorders5/542/113/231/50/82/122/52/231/161/163/324/236/276/460/10/40/120/390/421/115/202/122/17
Feeling AbnormalGeneral disorders1/542/111/232/50/80/120/51/234/160/163/324/234/277/460/10/40/120/390/422/114/201/121/17
HeadacheNervous system disorders4/544/115/230/52/83/121/54/231/162/163/324/235/275/460/11/40/120/394/422/114/202/121/17
DissociationPsychiatric disorders1/540/110/231/50/84/121/50/231/160/168/322/234/278/460/10/40/120/390/420/116/203/122/17
SomnolenceNervous system disorders3/541/117/231/50/82/120/56/231/161/165/327/235/275/460/10/40/120/390/422/112/200/120/17
Dissociative DisorderPsychiatric disorders0/541/110/230/51/80/121/50/230/161/161/324/232/273/460/10/40/120/390/420/111/203/123/17
InsomniaPsychiatric disorders1/540/111/230/50/82/120/50/230/160/162/320/230/270/460/11/41/121/390/420/110/200/120/17
HypertensionVascular disorders2/540/110/230/50/83/120/50/231/160/163/320/231/272/460/10/40/120/390/420/111/201/121/17

Baseline characteristics

Age, Continuous
Age, Continuous(years)Placebo (Panel A: Period 1)Esketamine 28 mg (Panel A: Period 1)Esketamine 56 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 1)Placebo (Panel B: Period 1)Esketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel B: Period 1)Total
Mean44.4 ± 9.6042.1 ± 10.3142.7 ± 11.2349.8 ± 9.2945.3 ± 7.6642.2 ± 9.4345.6 ± 7.3544.6 ± 9.29
Sex: Female, Male
Sex: Female, Male(Participants)Placebo (Panel A: Period 1)Esketamine 28 mg (Panel A: Period 1)Esketamine 56 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 1)Placebo (Panel B: Period 1)Esketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel B: Period 1)Total
Female1859694455
Male15626127553
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Placebo (Panel A: Period 1)Esketamine 28 mg (Panel A: Period 1)Esketamine 56 mg (Panel A: Period 1)Esketamine 84 mg (Panel A: Period 1)Placebo (Panel B: Period 1)Esketamine 14 mg (Panel B: Period 1)Esketamine 56 mg (Panel B: Period 1)Total
American Indian or Alaska Native00100001
Asian00002111941
Native Hawaiian or Other Pacific Islander00000000
Black or African American944100018
White24761100048
More than one race00000000
Unknown or Not Reported00000000
08

Study locations

25 sites
  • Birmingham, Alabama, United States
  • Garden Grove, California, United States
  • Hartford, Connecticut, United States
  • Jacksonville, Florida, United States
  • Tampa, Florida, United States
  • Atlanta, Georgia, United States
  • Chicago, Illinois, United States
  • Hoffman Estates, Illinois, United States
  • Rockville, Maryland, United States
  • Cedarhurst, New York, United States
  • New York, New York, United States
  • Allentown, Pennsylvania, United States
  • Philadelphia, Pennsylvania, United States
  • Memphis, Tennessee, United States
  • Lede, Belgium
  • Akita, Japan
  • Hiroshima, Japan
  • Ichikawa, Japan
  • Kanzaki, Japan
  • Kashihara, Japan
  • Kitakyushu, Japan
  • Kodaira, Japan
  • Kumamoto, Japan
  • Nagano, Japan
  • Shibukawa, Japan
09

References and documents

Publications

  • Perez-Ruixo C, Rossenu S, Zannikos P, Nandy P, Singh J, Drevets WC, Perez-Ruixo JJ. Population Pharmacokinetics of Esketamine Nasal Spray and its Metabolite Noresketamine in Healthy Subjects and Patients with Treatment-Resistant Depression. Clin Pharmacokinet. 2021 Apr;60(4):501-516. doi: 10.1007/s40262-020-00953-4. Epub 2020 Oct 31. PubMed 33128208 ↗
  • Daly EJ, Singh JB, Fedgchin M, Cooper K, Lim P, Shelton RC, Thase ME, Winokur A, Van Nueten L, Manji H, Drevets WC. Efficacy and Safety of Intranasal Esketamine Adjunctive to Oral Antidepressant Therapy in Treatment-Resistant Depression: A Randomized Clinical Trial. JAMA Psychiatry. 2018 Feb 1;75(2):139-148. doi: 10.1001/jamapsychiatry.2017.3739. PubMed 29282469 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 29, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01998958
Lead sponsor
Janssen Research & Development, LLC
Responsible party
Sponsor
First posted
Dec 3, 2013
Start date
Jan 27, 2014
Primary completion
Jul 21, 2015
Completion
Sep 25, 2015
Results posted
Jun 12, 2019
Last update
Apr 29, 2025

Study contacts

Janssen Research & Development, LLC Clinical Trial
study director · Janssen Research & Development, LLC

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
View the source record on ClinicalTrials.gov ↗

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