The purpose of this study is to evaluate the efficacy and safety of switching elderly participants with treatment-resistant depression (TRD) from a prior antidepressant treatment (to which they have not responded) to either intranasal esketamine plus a new oral antidepressant or switching to a new oral antidepressant plus intranasal placebo.
This is a randomized, double-blind (neither the researchers nor the participants know what treatment the participant is receiving), active-controlled, multicenter study (more than 1 study site) in elderly participants with TRD to assess the efficacy, safety, and tolerability of flexible doses of intranasal esketamine plus a newly initiated oral antidepressant compared with a newly initiated oral antidepressant (active comparator) plus intranasal placebo. The study will consist of 3 phases: Screening/Prospective Observational Phase (4 to 7 weeks), Double-blind induction Phase (4 weeks), Follow up Phase (2 weeks). Participants who rollover into a long-term open-label safety study will not participate in the Follow-up Phase. At the start of the Screening/Prospective observational Phase, participant must have had documented nonresponse to at least one antidepressant treatment (based on Massachusetts General Hospital - Antidepressant Treatment Response Questionnaire \[MGH-ATRQ\] criteria) in the current episode of depression, and the participant is taking a different oral antidepressant treatment on the MGH-ATRQ for at least the previous 2 weeks at or above the minimum therapeutic dose. This antidepressant treatment will be discontinued prior to the double-blind induction Phase. Participants taking benzodiazepines (at dosages equal to or less than the equivalent of 6 mg/day of lorazepam) and/or permitted non-benzodiazepine sleep medications (example, zolpidem, zaleplon) during the screening/prospective observational phase can continue these medications. All participants will start with first dose (Day 1 as 28 milligram \[mg\]); second dose (Day 4) is either 28 or 56 mg. All subsequent doses may be 28, 56 or 84 mg. After the first dose, all dosing decisions are determined by the investigator based on efficacy and tolerability. In addition, each participant will be assigned to receive 1 of 4 oral antidepressant medications from 2 different classes of antidepressant treatments, a Selective Serotonin Reuptake Inhibitor (SSRI) (escitalopram or sertraline) or a Serotonin and Norepinephrine Reuptake Inhibitor (SNRI) \[duloxetine or venlafaxine extended release (XR)\], initiated on Day 1 and continued through the double-blind induction Phase. Participants will be primarily evaluated for improvement in depressive symptoms as assessed by change in Montgomery Asberg Depression Rating Scale (MADRS) total score at Week 4. Participants' safety will be monitored throughout the study.
All participants will start with first dose (Day 1 as 28 milligram \[mg\]); second dose (Day 4) is either 28 or 56 mg. All subsequent doses may be 28, 56 or 84 mg. After the first dose, all dosing decisions are determined by the investigator based on efficacy and tolerability.
Participants will self-administer matching placebo, intranasally, twice per week for 4-weeks as a flexible dose regimen in the Double-Blind Induction Phase.
Duloxetine could be selected as the oral antidepressant medication by the investigator based on review of Massachusetts General Hospital -Antidepressant Treatment Response Questionnaire (MGH-ATRQ) and relevant prior antidepressant medication information. The minimum therapeutic dose is 60 milligram per day (mg/day).
Change From Baseline in Montgomery Asberg Depression Rating Scale (MADRS) Total Score up to Endpoint (Double-blind Induction Phase [Day 28])- Mixed-Effects Model Using Repeated Measures (MMRM) Analysis
The MADRS is a clinician-rated scale designed to measure depression severity and to detect changes due to antidepressant treatment. The scale consists of 10 items (to evaluates apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, inability to feel \[interest level\], pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), summed for a total possible score range of 0-60. Higher scores represent a more severe condition. Negative change in score indicates improvement.
Time frame: Baseline up to Endpoint (Double-blind Induction Phase[Day 28])
Change From Baseline in Montgomery Asberg Depression Rating Scale (MADRS) Total Score to Endpoint (Double-blind Induction Phase [Day 28])- Analysis of Covariance (ANCOVA) Analysis
The MADRS is a clinician-rated scale designed to measure depression severity and to detect changes due to antidepressant treatment. The scale consists of 10 items (to evaluates apparent sadness, reported sadness, inner tension, sleep, appetite, concentration, lassitude, inability to feel \[interest level\], pessimistic thoughts, and suicidal thoughts), each of which is scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), summed for a total possible score range of 0-60. Higher scores represent a more severe condition. Negative change in score indicates improvement. Missing data was imputed using Last Observation Carried Forward (LOCF) method and last post baseline observation during the double-blind induction phase was carried forward as the "End Point" for that phase.
Time frame: Baseline and Endpoint (Double-blind Induction Phase [Day 28])
Percentage of Participants Who Achieved >=50% Reduction From Baseline in MADRS Total Score at Endpoint (Double-blind Induction Phase [Day 28]) (LOCF Data)
Percentage of participants with greater than or equal to (\>=50) percent (%) reduction from baseline are reported. 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. Missing data was imputed using LOCF method and last post baseline observation during the double-blind induction phase was carried forward as the "End Point" for that phase.
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Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
139
Escitalopram could be selected as the oral antidepressant medication by the investigator based on review of MGH-ATRQ and relevant prior antidepressant medication information. Escitalopram will be given at a dose of 10 mg/day throughout the Double-Blind Induction Phase. This dose (10 mg/day) is the also the minimum therapeutic dose.
Sertraline could be selected as the oral antidepressant medication by the investigator based on review of MGH-ATRQ and relevant prior antidepressant medication information. Sertraline may be titrated up to a dose of 150 mg/day, but if not tolerated the dose can be reduced to the minimum therapeutic dose of 50 mg/day.
Venlafaxine Extended Release could be selected as the oral antidepressant medication by the investigator based on review of MGH-ATRQ and relevant prior antidepressant medication information. Venlafaxine Extended Release may be titrated up to a dose of 150 mg/day, but if not tolerated the dose can be reduced to the minimum therapeutic dose of 75 mg/day.
Unnamed facility
San Diego, California, United States
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New Haven, Connecticut, United States
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Miami, Florida, United States
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Marietta, Georgia, United States
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Iowa City, Iowa, United States
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Baltimore, Maryland, United States
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Watertown, Massachusetts, United States
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New York, New York, United States
Unnamed facility
Staten Island, New York, United States
Unnamed facility
Cincinnati, Ohio, United States
...and 59 more locations
Time frame: At Endpoint-Double-blind Induction Phase [Day 28]
Percentage of Participants in Remission (MADRS<=12) at Endpoint (Double-blind Induction Phase [Day 28]) (LOCF Data)
Remission was defined as participants who had a MADRS total score of less than or equal to (=\<) 12. 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. Missing data was imputed using LOCF method and last post baseline observation during the double-blind induction phase was carried forward as the "End Point" for that phase.
Time frame: At Endpoint-Double-blind Induction Phase [Day 28]
Change From Baseline in Clinical Global Impression-Severity (CGI-S) Score to Endpoint (Double-blind Induction Phase [Day 28])- ANCOVA Analysis on Ranks
CGI-S provides an overall clinician-determined summary measure of the severity of the participants illness including participants history, psychosocial circumstances, symptoms, behavior, and the impact of the symptoms on the participants ability to function. The CGI-S evaluates the severity of psychopathology on a scale of 0 to 7. Considering total clinical experience, a participant is assessed on severity of mental illness at the time of rating 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 the most extremely ill patients. Missing data was imputed using LOCF method and last post baseline observation during the double-blind induction phase was carried forward as the "End Point" for that phase.
Time frame: Baseline and Endpoint (Double-blind Induction Phase [Day 28])
Change From Baseline in EuroQol-5 Dimension-5 Level (EQ-5D-5L) to Endpoint (Double-blind Induction Phase [Day 28]): Health Status Index
EQ-5D-5L is a 2-part instrument for use as a measure of health outcome, designed for self-completion by respondents. It consists of EQ-5D-5L descriptive system and EQ VAS. EQ-5D-5L descriptive system comprises of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each has 5 levels of perceived problems (1-no problem, 2-slight problems, 3-moderate problems, 4-severe problems, 5-extreme problems). Participant selects answer for each of 5 dimensions considering response that best matches his/her health "today". Responses were used to generate a health status index (HSI). HSI ranges from -0.148 (health state value equal to dead) and 0.949 (full health), is anchored at 0 (dead) and 1 (full health).
Time frame: Baseline and Endpoint (Double-blind Induction Phase [Day 28])
Change From Baseline in EuroQol-5 Dimension-5 Level (EQ-5D-5L) to Endpoint (Double-blind Induction Phase [Day 28]): EQ-VAS
EQ-5D-5L is a 2-part instrument for use as a measure of health outcome, designed for self-completion by respondents. It consists of EQ-5D-5L descriptive system and EQ VAS. The EQ VAS self-rating records the respondent's own assessment of his or her overall health status at the time of completion, on a scale of 0 (the worst health you can imagine) to 100 (the best health you can imagine).
Time frame: Baseline and Endpoint (Double-blind Induction Phase [Day 28])
Change From Baseline in EuroQol-5 Dimension-5 Level (EQ-5D-5L) to Endpoint (Double-blind Induction Phase [Day 28]): Sum Score
EQ-5D-5L consists of EQ-5D-5L descriptive system and EQ visual analogue scale (EQ VAS). EQ-5D-5L descriptive system comprises of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each has 5 levels of perceived problems (1-no problem, 2-slight problems, 3-moderate problems, 4-severe problems, 5-extreme problems). Participant selects answer for each of 5 dimensions considering response that best matches his/her health "today". Responses were used to generate a Health Status Index (HSI). HSI ranges from -0.148 (health state value equal to dead) and 0.949 (full health). EQ VAS self-rating records the respondent's own assessment of his/her overall health status at time of completion, on a scale of 0 (worst health you can imagine) to 100 (best health you can imagine). Sum score ranges from 0 to 100 where, sum score = (sum of the scores from the 5 dimensions minus 5) \*5. Higher score indicates worst health state.
Time frame: Baseline and Endpoint (Double-blind Induction Phase [Day 28])