Depressive Disorder, Major
Conditions
Keywords
Major Depressive Disorder, Depression, Melancholia, Drug Therapy
Brief summary
The purpose of this study is to evaluate the efficacy, safety and tolerability of vortioxetine, once daily (QD), compared with placebo in adults with major depressive disorder.
Detailed description
The drug that was tested in this study is called Vortioxetine. Vortioxetine is being tested to treat depression in adults who have major depressive disorder (MDD). This study looked at MDD relief in people who took varying dosages of vortioxetine. The study enrolled 614 patients. Participants were randomly assigned (by chance, like flipping a coin) to one of the four treatment groups-which remained undisclosed to the patient and study doctor during the study (unless there was an urgent medical need): * Vortioxetine 15 mg * Vortioxetine 20 mg * Duloxetine 60 mg * Placebo (dummy inactive capsule) - this was a capsule that looked like the study drug but had no active ingredient. All participants were asked to take one capsule at the same time each day throughout the study. This multi-center trial was conducted in the United States. The overall time to participate in this study was up to 13 weeks. Participants made 9 visits to the clinic, and were contacted by telephone 4 weeks after the last dose of study drug for a follow-up assessment.
Interventions
Encapsulated vortioxetine immediate release tablets
Overencapsulated duloxetine delayed-release capsules
Placebo-matching capsules
Sponsors
Study design
Eligibility
Inclusion criteria
1. Man or a woman who suffers from a major depressive episode (MDE) recurrent as the primary diagnosis according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) criteria (classification code 296.3x) as confirmed by the Structured Clinical Interview for DSM Disorders (SCID). 2. The reported duration of the current MDE is at least 3 months. 3. Has a Montgomery Åsberg Depression Rating Scale (MADRS) total score of 26 or greater at Screening and Baseline Visits. 4. Has a Clinical Global Impression - Severity of Illness (CGI-S) score of 4 or greater at Screening and Baseline Visits.
Exclusion criteria
1. Has previously participated in a Lu AA21004 clinical study. 2. Has 1 or more the following: 1. Any current psychiatric disorder other than major depressive disorder (MDD) as defined in the DSM-IV-TR (as assessed by the SCID). 2. Current or past history of: manic or hypomanic episode, schizophrenia or any other psychotic disorder, including major depression with psychotic features, mental retardation, organic mental disorders, or mental disorders due to a general medical condition as defined in the DSM-IV-TR. 3. Diagnosis of any substance abuse or dependence (except nicotine and caffeine) as defined in the DSM-IV-TR that has not been in sustained full remission for at least 2 years prior to screening (subject must also have negative urine drug screen prior to Baseline). 4. Presence or history of a clinically significant neurological disorder (including epilepsy). 5. Neurodegenerative disorder (Alzheimer disease, Parkinson disease, multiple sclerosis, Huntington disease, etc). 6. Any Axis II disorder that might compromise the study. 3. The current depressive symptoms are considered by the investigator to have been resistant to 2 adequate antidepressant treatments of at least 6 weeks duration each. Has 1 or more laboratory values outside the normal range, based on the blood or urine samples taken at the Screening Visit, that are considered by the investigator to be clinically significant. 4. Has a thyroid stimulating hormone value outside the normal range at the Screening Visit that is deemed clinically significant by the investigator. 5. Has clinically significant abnormal vital signs as determined by the investigator. 6. Has an abnormal electrocardiogram as determined by the central reader and confirmed as clinically significant by the investigator. 7. Has an alanine aminotransferase, aspartate aminotransferase or total bilirubin level greater than 1.5 times the upper limits of normal. 8. Has a previous history of cancer that had been in remission for less than 5 years prior to the first dose of study medication. This criterion does not include those patients with basal cell or Stage I squamous cell carcinoma of the skin. 9. Has a disease or takes medication that, in the opinion of the investigator, could interfere with the assessments of safety, tolerability, or efficacy. 10. Has a known history of or currently has increased intraocular pressure or is at risk of acute narrow-angle glaucoma. 11. Has a clinically significant unstable illness, for example, hepatic impairment or renal insufficiency, or a cardiovascular, pulmonary, gastrointestinal, endocrine, neurological, rheumatologic, immunologic, infectious, skin and subcutaneous tissue disorders, or metabolic disturbance. The following are also considered unstable due to the potential impact on assessment of MDD response: pain disorder, chronic fatigue syndrome, fibromyalgia, and obstructive sleep apnea. 12. Has a significant risk of suicide according to the investigator's opinion or has a score greater than or equal to 5 on item 10 (suicidal thoughts) of the Montgomery Åsberg Depression Rating Scale or has made a suicide attempt in the previous 6 months.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change From Baseline in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score | Baseline and Week 8 | The MADRS is a depression rating scale consisting of 10 items, each rated 0 (normal) to 6 (most abnormal). The 10 items represent the core symptoms of depressive illness. The overall score ranges from 0 (symptoms absent) to 60 (severe depression). A decrease in the total score or on individual items indicates improvement. Least squares (LS) means are from a mixed model for repeated measurements (MMRM) analysis of covariance (ANCOVA) with treatment, center, week, treatment-by-week interaction, Baseline MADRS total score-by-week as fixed effects. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of Participants With a MADRS Response at Week 8 | Baseline and Week 8 | Response is defined as a participant with a ≥50% decrease in Montgomery Åsberg Depression Rating Scale (MADRS) total score from Baseline. The MADRS is a depression rating scale consisting of 10 items, each rated 0 to 6. The 10 items represent the core symptoms of depressive illness. The overall score ranges from 0 (symptoms absent) to 60 (severe depression). Decrease in the total score or on individual items indicates improvement. |
| Mean Clinical Global Impression Scale - Improvement (CGI-I) Score at Week 8 | Week 8 | The Clinical Global Impression-Global Improvement scale assesses the participant's improvement (or worsening) as assessed by the clinician relative to Baseline on a 7-point scale: 1, very much improved; 2, much improved; 3, minimally improved; 4, no change; 5, minimally worse; 6, much worse; or 7, very much worse. LS means were from a mixed model for repeated measurements (MMRM) ANCOVA with treatment, center, week, treatment-by-week interaction, Baseline Clinical Global Impression Scale-Severity of Illness (CGI-S) score-by-week as fixed effects. |
| Change From Baseline in MADRS Total Score at Week 8 in Participants With Baseline Hamilton Anxiety Scale (HAM-A) Total Score ≥20 | Baseline and Week 8 | The MADRS is a depression rating scale consisting of 10 items, each rated 0 (normal) to 6 (most abnormal). The 10 items represent the core symptoms of depressive illness. The overall score ranges from 0 (symptoms absent) to 60 (severe depression). A decrease in the total score or on individual items indicates improvement. LS means are from a mixed model for repeated measurements (MMRM) ANCOVA with treatment, center, week, treatment-by-week interaction, Baseline MADRS total score-by-week as fixed effects. HAM-A is a 14 item rating scale to quantify anxiety severity rated on a 5-point scale from 0 (not present) to 4 (severe) with a total score range from 0 to 56, where lower scores indicate mild severity. |
| Percentage of Participants in MADRS Remission at Week 8 | Week 8 | Remission is defined as a participant with a Montgomery Åsberg Depression Rating Scale (MADRS) total score ≤10. The MADRS is a depression rating scale consisting of 10 items, each rated 0 to 6. The 10 items represent the core symptoms of depressive illness. The overall score ranges from 0 (symptoms absent) to 60 (severe depression). Decrease in the total score or on individual items indicates improvement. |
| Change From Baseline in Sheehan Disability Scale (SDS) Total Score at Week 8 | Baseline and Week 8 | The Sheehan Disability Scale assesses functional impairment in 3 domains: work/school, social life or leisure activities, and home life or family responsibilities. The participant rates the extent to which each aspect is impaired on a 10-point visual analog scale, from 0 (not at all) to 10 (extremely). The 3 scores are added together to calculate the total score, which ranges from 0 to 30, with higher scores indicating more impairment. LS means were from mixed model for repeated measurements (MMRM) ANCOVA with treatment, center, week, treatment-by-week interaction, Baseline SDS total score-by-week as fixed effects. |
Countries
United States
Participant flow
Recruitment details
Participants took part in the study at 58 investigative sites in the United States from 22 June 2010 to 20 March 2012.
Pre-assignment details
Participants with a diagnosis of major depressive disorder were enrolled equally in 1 of 4 treatment groups, once a day placebo, 15 mg vortioxetine, 20 mg vortioxetine, or 60 mg duloxetine.
Participants by arm
| Arm | Count |
|---|---|
| Placebo Placebo-matching capsules, orally, once daily for up to 9 weeks. | 161 |
| Vortioxetine 15 mg Vortioxetine 10 mg, encapsulated tablets, orally, once daily for one week, then vortioxetine 15 mg, encapsulated tablets, orally, once daily for 7 weeks, then placebo-matching capsules, orally, once daily for one week. | 147 |
| Vortioxetine 20 mg Vortioxetine 10 mg, encapsulated tablets, orally, once daily for one week, then vortioxetine 20 mg, encapsulated tablets, orally, once daily for 7 weeks, then placebo-matching capsules, orally, once daily for one week. | 154 |
| Duloxetine 60 mg Duloxetine 30 mg capsules, orally, once daily for one week then duloxetine 60 mg, capsules, orally, once daily for 7 weeks, then duloxetine 30 mg capsules, once daily, for one week. | 152 |
| Total | 614 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 | FG002 | FG003 |
|---|---|---|---|---|---|
| Overall Study | Adverse Event | 4 | 14 | 14 | 10 |
| Overall Study | Lack of Efficacy | 9 | 0 | 2 | 1 |
| Overall Study | Lost to Follow-up | 8 | 8 | 11 | 15 |
| Overall Study | Noncompliance with Study Medication | 1 | 3 | 4 | 1 |
| Overall Study | Other | 1 | 1 | 3 | 2 |
| Overall Study | Protocol Deviations | 4 | 3 | 3 | 2 |
| Overall Study | Withdrawal of Consent | 5 | 5 | 4 | 6 |
Baseline characteristics
| Characteristic | Placebo | Total | Duloxetine 60 mg | Vortioxetine 20 mg | Vortioxetine 15 mg |
|---|---|---|---|---|---|
| Age Continuous | 42.4 years STANDARD_DEVIATION 12.55 | 42.9 years STANDARD_DEVIATION 12.35 | 43.4 years STANDARD_DEVIATION 12.24 | 42.8 years STANDARD_DEVIATION 12.4 | 43.1 years STANDARD_DEVIATION 12.28 |
| Age, Customized ≤55 years | 138 participants | 521 participants | 126 participants | 132 participants | 125 participants |
| Age, Customized >55 years | 23 participants | 93 participants | 26 participants | 22 participants | 22 participants |
| Alcohol consumption 2 to 6 times per week | 16 participants | 70 participants | 14 participants | 21 participants | 19 participants |
| Alcohol consumption Daily | 2 participants | 7 participants | 0 participants | 3 participants | 2 participants |
| Alcohol consumption Never | 61 participants | 237 participants | 67 participants | 61 participants | 48 participants |
| Alcohol consumption Once monthly or less often | 58 participants | 212 participants | 54 participants | 45 participants | 55 participants |
| Alcohol consumption Once per week | 24 participants | 88 participants | 17 participants | 24 participants | 23 participants |
| Body Mass Index (BMI) | 31.13 kg/m^2 STANDARD_DEVIATION 7.882 | 31.20 kg/m^2 STANDARD_DEVIATION 7.855 | 31.49 kg/m^2 STANDARD_DEVIATION 8.448 | 30.92 kg/m^2 STANDARD_DEVIATION 7.633 | 31.26 kg/m^2 STANDARD_DEVIATION 7.476 |
| Clinical Global Impression - Severity scale score | 4.6 scores on a scale STANDARD_DEVIATION 0.58 | 4.5 scores on a scale STANDARD_DEVIATION 0.58 | 4.5 scores on a scale STANDARD_DEVIATION 0.6 | 4.5 scores on a scale STANDARD_DEVIATION 0.6 | 4.5 scores on a scale STANDARD_DEVIATION 0.55 |
| Hamilton Anxiety Scale Total Score | 17.0 scores on a scale STANDARD_DEVIATION 5.12 | 17.7 scores on a scale STANDARD_DEVIATION 5.42 | 18.4 scores on a scale STANDARD_DEVIATION 5.81 | 17.8 scores on a scale STANDARD_DEVIATION 5.42 | 17.5 scores on a scale STANDARD_DEVIATION 5.28 |
| Height | 168.46 cm STANDARD_DEVIATION 9.757 | 167.55 cm STANDARD_DEVIATION 9.395 | 166.40 cm STANDARD_DEVIATION 9.851 | 168.03 cm STANDARD_DEVIATION 9.53 | 167.23 cm STANDARD_DEVIATION 8.254 |
| Montgomery Åsberg Depression Rating Scale (MADRS) total score | 31.6 scores on a scale STANDARD_DEVIATION 4.18 | 32.1 scores on a scale STANDARD_DEVIATION 4.27 | 32.9 scores on a scale STANDARD_DEVIATION 4.39 | 32.0 scores on a scale STANDARD_DEVIATION 4.36 | 31.9 scores on a scale STANDARD_DEVIATION 4.08 |
| Race/Ethnicity, Customized American Indian or Alaska Native | 1 participants | 1 participants | 0 participants | 0 participants | 0 participants |
| Race/Ethnicity, Customized Asian | 1 participants | 7 participants | 1 participants | 3 participants | 2 participants |
| Race/Ethnicity, Customized Black | 37 participants | 136 participants | 32 participants | 36 participants | 31 participants |
| Race/Ethnicity, Customized Caucasian (or White, including Hispanic) | 122 participants | 470 participants | 119 participants | 115 participants | 114 participants |
| Race/Ethnicity, Customized Hispanic or Latino | 18 participants | 79 participants | 23 participants | 18 participants | 20 participants |
| Race/Ethnicity, Customized Native Hawaiian or Other Pacific Islander | 0 participants | 0 participants | 0 participants | 0 participants | 0 participants |
| Race/Ethnicity, Customized Non-Hispanic and non-Latino | 143 participants | 535 participants | 129 participants | 136 participants | 127 participants |
| Region of Enrollment United States | 161 participants | 614 participants | 152 participants | 154 participants | 147 participants |
| Sex: Female, Male Female | 116 Participants | 453 Participants | 119 Participants | 114 Participants | 104 Participants |
| Sex: Female, Male Male | 45 Participants | 161 Participants | 33 Participants | 40 Participants | 43 Participants |
| Smoking classification Current smoker | 46 participants | 164 participants | 39 participants | 41 participants | 38 participants |
| Smoking classification Ex-smoker | 33 participants | 141 participants | 38 participants | 40 participants | 30 participants |
| Smoking classification Never smoked | 82 participants | 309 participants | 75 participants | 73 participants | 79 participants |
| Waist circumference | 98.73 cm STANDARD_DEVIATION 18.232 | 97.47 cm STANDARD_DEVIATION 17.678 | 97.73 cm STANDARD_DEVIATION 17.971 | 96.47 cm STANDARD_DEVIATION 18.301 | 96.86 cm STANDARD_DEVIATION 16.116 |
| Weight | 88.61 kg STANDARD_DEVIATION 24.786 | 87.67 kg STANDARD_DEVIATION 23.574 | 87.16 kg STANDARD_DEVIATION 24.196 | 87.44 kg STANDARD_DEVIATION 23.806 | 87.42 kg STANDARD_DEVIATION 21.431 |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk |
|---|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — | — / — |
| other Total, other adverse events | 94 / 159 | 101 / 147 | 112 / 154 | 119 / 150 |
| serious Total, serious adverse events | 0 / 159 | 2 / 147 | 0 / 154 | 0 / 150 |
Outcome results
Change From Baseline in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score
The MADRS is a depression rating scale consisting of 10 items, each rated 0 (normal) to 6 (most abnormal). The 10 items represent the core symptoms of depressive illness. The overall score ranges from 0 (symptoms absent) to 60 (severe depression). A decrease in the total score or on individual items indicates improvement. Least squares (LS) means are from a mixed model for repeated measurements (MMRM) analysis of covariance (ANCOVA) with treatment, center, week, treatment-by-week interaction, Baseline MADRS total score-by-week as fixed effects.
Time frame: Baseline and Week 8
Population: The full analysis set (FAS) included all randomized patients who received at least 1 dose of study drug, and had at least 1 valid post-baseline value for assessment of primary efficacy. A mixed model for repeated measurements (MMRM) based on observed cases was used.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) | Dispersion |
|---|---|---|---|
| Placebo | Change From Baseline in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score | -12.83 scores on a scale | Standard Error 0.834 |
| Vortioxetine 15 mg | Change From Baseline in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score | -14.30 scores on a scale | Standard Error 0.89 |
| Vortioxetine 20 mg | Change From Baseline in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score | -15.57 scores on a scale | Standard Error 0.88 |
| Duloxetine 60 mg | Change From Baseline in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score | -16.90 scores on a scale | Standard Error 0.884 |
Change From Baseline in MADRS Total Score at Week 8 in Participants With Baseline Hamilton Anxiety Scale (HAM-A) Total Score ≥20
The MADRS is a depression rating scale consisting of 10 items, each rated 0 (normal) to 6 (most abnormal). The 10 items represent the core symptoms of depressive illness. The overall score ranges from 0 (symptoms absent) to 60 (severe depression). A decrease in the total score or on individual items indicates improvement. LS means are from a mixed model for repeated measurements (MMRM) ANCOVA with treatment, center, week, treatment-by-week interaction, Baseline MADRS total score-by-week as fixed effects. HAM-A is a 14 item rating scale to quantify anxiety severity rated on a 5-point scale from 0 (not present) to 4 (severe) with a total score range from 0 to 56, where lower scores indicate mild severity.
Time frame: Baseline and Week 8
Population: Full analysis set patients with a HAM-A Baseline score ≥20. A mixed model for repeated measurements (MMRM) based on observed cases was used.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) | Dispersion |
|---|---|---|---|
| Placebo | Change From Baseline in MADRS Total Score at Week 8 in Participants With Baseline Hamilton Anxiety Scale (HAM-A) Total Score ≥20 | -14.27 scores on a scale | Standard Error 1.676 |
| Vortioxetine 15 mg | Change From Baseline in MADRS Total Score at Week 8 in Participants With Baseline Hamilton Anxiety Scale (HAM-A) Total Score ≥20 | -13.34 scores on a scale | Standard Error 1.624 |
| Vortioxetine 20 mg | Change From Baseline in MADRS Total Score at Week 8 in Participants With Baseline Hamilton Anxiety Scale (HAM-A) Total Score ≥20 | -14.89 scores on a scale | Standard Error 1.777 |
| Duloxetine 60 mg | Change From Baseline in MADRS Total Score at Week 8 in Participants With Baseline Hamilton Anxiety Scale (HAM-A) Total Score ≥20 | -18.31 scores on a scale | Standard Error 1.573 |
Change From Baseline in Sheehan Disability Scale (SDS) Total Score at Week 8
The Sheehan Disability Scale assesses functional impairment in 3 domains: work/school, social life or leisure activities, and home life or family responsibilities. The participant rates the extent to which each aspect is impaired on a 10-point visual analog scale, from 0 (not at all) to 10 (extremely). The 3 scores are added together to calculate the total score, which ranges from 0 to 30, with higher scores indicating more impairment. LS means were from mixed model for repeated measurements (MMRM) ANCOVA with treatment, center, week, treatment-by-week interaction, Baseline SDS total score-by-week as fixed effects.
Time frame: Baseline and Week 8
Population: Full analysis set. A mixed model for repeated measurements (MMRM) based on observed cases was used.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) | Dispersion |
|---|---|---|---|
| Placebo | Change From Baseline in Sheehan Disability Scale (SDS) Total Score at Week 8 | -7.68 scores on a scale | Standard Error 0.776 |
| Vortioxetine 15 mg | Change From Baseline in Sheehan Disability Scale (SDS) Total Score at Week 8 | -7.73 scores on a scale | Standard Error 0.821 |
| Vortioxetine 20 mg | Change From Baseline in Sheehan Disability Scale (SDS) Total Score at Week 8 | -8.55 scores on a scale | Standard Error 0.81 |
| Duloxetine 60 mg | Change From Baseline in Sheehan Disability Scale (SDS) Total Score at Week 8 | -9.66 scores on a scale | Standard Error 0.834 |
Mean Clinical Global Impression Scale - Improvement (CGI-I) Score at Week 8
The Clinical Global Impression-Global Improvement scale assesses the participant's improvement (or worsening) as assessed by the clinician relative to Baseline on a 7-point scale: 1, very much improved; 2, much improved; 3, minimally improved; 4, no change; 5, minimally worse; 6, much worse; or 7, very much worse. LS means were from a mixed model for repeated measurements (MMRM) ANCOVA with treatment, center, week, treatment-by-week interaction, Baseline Clinical Global Impression Scale-Severity of Illness (CGI-S) score-by-week as fixed effects.
Time frame: Week 8
Population: The Full Analysis Set. A mixed model for repeated measurements (MMRM) based on observed cases was used.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) | Dispersion |
|---|---|---|---|
| Placebo | Mean Clinical Global Impression Scale - Improvement (CGI-I) Score at Week 8 | 2.65 scores on a scale | Standard Error 0.096 |
| Vortioxetine 15 mg | Mean Clinical Global Impression Scale - Improvement (CGI-I) Score at Week 8 | 2.54 scores on a scale | Standard Error 0.102 |
| Vortioxetine 20 mg | Mean Clinical Global Impression Scale - Improvement (CGI-I) Score at Week 8 | 2.47 scores on a scale | Standard Error 0.101 |
| Duloxetine 60 mg | Mean Clinical Global Impression Scale - Improvement (CGI-I) Score at Week 8 | 2.31 scores on a scale | Standard Error 0.101 |
Percentage of Participants in MADRS Remission at Week 8
Remission is defined as a participant with a Montgomery Åsberg Depression Rating Scale (MADRS) total score ≤10. The MADRS is a depression rating scale consisting of 10 items, each rated 0 to 6. The 10 items represent the core symptoms of depressive illness. The overall score ranges from 0 (symptoms absent) to 60 (severe depression). Decrease in the total score or on individual items indicates improvement.
Time frame: Week 8
Population: Full analysis set, last observation carried forward was used.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Placebo | Percentage of Participants in MADRS Remission at Week 8 | 26.8 percentage of participants |
| Vortioxetine 15 mg | Percentage of Participants in MADRS Remission at Week 8 | 26.9 percentage of participants |
| Vortioxetine 20 mg | Percentage of Participants in MADRS Remission at Week 8 | 29.3 percentage of participants |
| Duloxetine 60 mg | Percentage of Participants in MADRS Remission at Week 8 | 26.0 percentage of participants |
Percentage of Participants With a MADRS Response at Week 8
Response is defined as a participant with a ≥50% decrease in Montgomery Åsberg Depression Rating Scale (MADRS) total score from Baseline. The MADRS is a depression rating scale consisting of 10 items, each rated 0 to 6. The 10 items represent the core symptoms of depressive illness. The overall score ranges from 0 (symptoms absent) to 60 (severe depression). Decrease in the total score or on individual items indicates improvement.
Time frame: Baseline and Week 8
Population: Full analysis set, last observation carried forward was used.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Placebo | Percentage of Participants With a MADRS Response at Week 8 | 39.2 percentage of participants |
| Vortioxetine 15 mg | Percentage of Participants With a MADRS Response at Week 8 | 44.1 percentage of participants |
| Vortioxetine 20 mg | Percentage of Participants With a MADRS Response at Week 8 | 44.2 percentage of participants |
| Duloxetine 60 mg | Percentage of Participants With a MADRS Response at Week 8 | 54.8 percentage of participants |