| Primary | Time to Relapse From Date of Randomization to Endpoint of The Randomized-withdrawal Period | Relapse status was assessed during the double-blind treatment phase and was defined as having 2 or more binge days per week for 2 consecutive weeks (14 consecutive days) prior to any visit and having an increase in Clinical Global Impressions-Severity (CGI-S) score of 2 or more points compared to the randomized-withdrawal baseline (date of relapse - date of randomization). Binge eating information was captured via a self-report paper diary. The binge diary captured the number of binges per day, total hours per day spent binging, type of binge (at mealtime or at another time other than mealtime), and a description of the binge (amounts and types of foods). Binge frequency was reviewed by the clinician with the subject to confirm reported binge episodes per day. The CGI-S was performed to rate the severity of a subject's condition using a 7-point scale ranging from 1 (normal, not at all ill) to 7 (among the most extremely ill). | The Full Analysis Set (FAS): participants in the Randomized Safety Analysis Set (RSAS) with at least 1 post-randomization CGI-S assessment. Three participants in the placebo group were randomized and included in the RSAS but not in the FAS. Visit 21 could include participants who discontinued but completed a final safety and efficacy assessment. | Posted | | Median | Inter-Quartile Range | days | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) | | | | ID | Title | Description |
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| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. | | OG001 | SPD489 (Randomized-withdrawal Period) | For participants randomized to SPD489, the optimal daily dose of 50 or 70mg was continued throughout the 26-week double-blind randomized-withdrawal phase. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. |
| | | Title | Denominators | Categories |
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| | | Title | Measurements |
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| - OG000NA(55.0 to NA)As neither treatment group had over 50% of subjects experiencing relapse during the 26-week randomized-withdrawal phase, the median time to relapse and inter-quartile range was not calculable.
- OG001NA(NA to NA)As neither treatment group had over 50% of subjects experiencing relapse during the 26-week randomized-withdrawal phase, the median time to relapse and inter-quartile range was not calculable.
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| | Group IDs | Group Description | Statistical Method | Statistical Comment | P-Value | P-Value Comment | Parameter Type | Parameter Value | Dispersion Type | Dispersion Value | Confidence Interval Sides | Confidence Interval % | CI Lower Limit | CI Upper Limit | CI Lower Limit Comment | CI Upper Limit Comment | Estimate Comment | Tested Non-Inferiority | Non-Inferiority Type | Non-Inferiority Comment | Other Analysis Description |
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| | Log Rank | | <0.001 | P-value based on a log-rank test, stratified by 4-week cessation status (Yes, No). 4-week cessation was defined as a subject having no binge days during the 4 weeks prior to randomization. | | | | | 2-Sided | | | | | | | | Superiority or Other (legacy) | | |
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| Secondary | Change From Randomized-Withdrawal Baseline in The Number of Binge- Eating Days Per Week During The Randomized-withdrawal Period | A binge day was defined as days during which at least 1 binge episode occurred. As assessed by clinical interview based on subject binge diary. Binge eating information was captured via a self-report paper diary. The binge diary captured the number of binges per day, total hours per day spent binging, type of binge (at mealtime or at another time other than mealtime), and a description of the binge (amounts and types of foods). Binge frequency was reviewed by the clinician with the subject to confirm reported binge episodes per day. A negative change from Baseline indicates that binge-related behavior decreased. The randomized -withdrawal-baseline was defined as the weekly average number of binge days for the 14 days prior to the Randomization Visit (Visit 8). | The FAS. Three participants in the placebo group were randomized and included in the RSAS but not in the FAS. Not all participants in the FAS had data collected for this outcome. Visit 21 included only participants who completed randomized treatment (placebo: n=50; SPD489: n=102). | Posted | | Least Squares Mean | Standard Error | days | | Randomized--withdrawal baseline (Visit 8; 12 weeks after start of open- label treatment [Week 12]), Visit 21 (26 weeks after randomization [Week 38]) | | | | ID | Title | Description |
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| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. |
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| Secondary | Percent of Participants Within Each Category of The Clinical Global Impression-Severity of Illness (CGI-S) Scale at Endpoint of The Randomized-withdrawal Period | The CGI-S permits a global evaluation of a subject's condition and severity of symptoms. The CGI-S was performed to rate the severity of a subject's condition based on a 7-point scale ranging from 1 (normal, not at all ill) to 7 (among the most extremely ill). | The FAS. Three participants in the placebo group were randomized and included in the RSAS but not in the FAS. Visit 21 could include participants who discontinued but completed a final safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) | | | | ID | Title | Description |
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| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. | | OG001 | SPD489 (Randomized-withdrawal Period) | For participants randomized to SPD489, the optimal daily dose of 50 or 70mg was continued throughout the 26-week double-blind randomized-withdrawal phase. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. |
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| Secondary | Change From Randomized-Withdrawal Baseline in The Total Score of The Yale-Brown Obsessive Compulsive Scale Modified for Binge Eating (Y-BOCS-BE) During The Randomized-withdrawal Period | The Y-BOCS-BE measures the obsession of binge eating thoughts and compulsiveness of binge eating behaviors. The scale is a clinician rated, 10-item scale, each item rated from 0 (no symptoms) to 4 (extreme symptoms). The scale includes questions regarding the amount of time spent on obsessions, impairment or distress experienced, and resistance and control over these thoughts. The same types of questions were asked about compulsions (ie, time spent, interference, etc.).Total scores range from 0 to 40. A total score of 0-7 is sub-clinical, 8-15 is mild, 16-23 is moderate, 24-31 is severe, and 32-40 is extreme. A decrease from baseline in Y-BOCS-BE Total Score represents an improvement in obsession with binge-eating thoughts or compulsiveness of binge-eating behaviors. | The FAS. Three participants in the placebo group were randomized and included in the RSAS but not in the FAS. Not all participants in the FAS had data collected for this outcome. Visit 21 included only participants who completed randomized treatment (placebo: n=54; SPD489: n=107). | Posted | | Least Squares Mean | Standard Error | units on a scale | | Randomized-withdrawal baseline (Visit 8; 12 weeks after start of open-label treatment [Week 12]), Visit 21 (26 weeks after randomization [Week 38]) | | | | ID | Title | Description |
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| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Mobility at Endpoint of The Open-label Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The Open-label Safety Population (OSP), defined as participants who had taken at least 1 dose of SPD489 in the open-label period and who had a post-baseline safety assessment. Not all participants had data collected for this outcome. Visit 8 could include participants who discontinued but completed a safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 8 (12 weeks after start of open-label treatment [Week 12] or Early Termination) | | | | ID | Title | Description |
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| OG000 | Open-label Safety Population | The Open-label Safety Population included all participants who had taken at least 1 dose of SPD489 in the open-label period and who had a post-baseline safety assessment. |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5--Dimension 5--Level Self--Report Questionnaire (EQ--5D--5L) For Mobility at Endpoint of The Randomized-withdrawal Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The FAS. Three participants in the placebo group were randomized and included in the RSAS but not in the FAS. Not all participants in the FAS had data collected for this outcome. Visit 21 could include participants who discontinued but completed a final safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) | | | | ID | Title | Description |
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| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. | | OG001 | SPD489 (Randomized-withdrawal Period) | |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Self Care at Endpoint of The Open-label Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The OSP. Not all participants had data collected for this outcome. Visit 8 could include participants who discontinued but completed a safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 8 (12 weeks after start of open-label treatment [Week 12] or Early Termination) | | | | ID | Title | Description |
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| OG000 | Open-label Safety Population | The Open-label Safety Population included all participants who had taken at least 1 dose of SPD489 in the open-label period and who had a post-baseline safety assessment. |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Self Care at Endpoint of The Randomized-withdrawal Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The FAS. Three participants in the placebo group were randomized and included in the RSAS but not included in the FAS. Not all participants in the FAS had data collected for this outcome. Visit 21 could include participants who discontinued but completed a final safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) | | | | ID | Title | Description |
|---|
| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. | | OG001 | SPD489 (Randomized-withdrawal Period) | |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Usual Activities at Endpoint of The Open-label Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The OSP. Not all participants had data collected for this outcome. Visit 8 could include participants who discontinued but completed a safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 8 (12 weeks after start of open-label treatment [Week 12] or Early Termination) | | | | ID | Title | Description |
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| OG000 | Open-label Safety Population | The Open-label Safety Population included all participants who had taken at least 1 dose of SPD489 in the open-label period and who had a post-baseline safety assessment. |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Usual Activities at Endpoint of The Randomized-withdrawal Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The FAS. Three participants in the placebo group were randomized and included in the RSAS but not in the FAS. Not all participants in the FAS had data collected for this outcome. Visit 21 could include participants who discontinued but completed a final safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) | | | | ID | Title | Description |
|---|
| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. | | OG001 | SPD489 (Randomized-withdrawal Period) | |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Pain and Discomfort at Endpoint of The Open-label Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The OSP. Not all participants had data collected for this outcome. Visit 8 could include participants who discontinued but completed a safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 8 (12 weeks after start of open-label treatment [Week 12] or Early Termination) | | | | ID | Title | Description |
|---|
| OG000 | Open-label Safety Population | The Open-label Safety Population included all participants who had taken at least 1 dose of SPD489 in the open-label period and who had a post-baseline safety assessment. |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Pain and Discomfort at Endpoint of The Randomized-withdrawal Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The FAS. Three participants in the placebo group were randomized and included in the RSAS but not included in the FAS. Not all participants in the FAS had data collected for this outcome. Visit 21 could include participants who discontinued but completed a final safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) | | | | ID | Title | Description |
|---|
| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. | | OG001 | SPD489 (Randomized-withdrawal Period) | |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Anxiety And Depression at Endpoint of The Open-label Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The OSP. Not all participants had data collected for this outcome. Visit 8 could include participants who discontinued but completed a safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 8 (12 weeks after start of open-label treatment [Week 12] or Early Termination) | | | | ID | Title | Description |
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| OG000 | Open-label Safety Population | The Open-label Safety Population included all participants who had taken at least 1 dose of SPD489 in the open-label period and who had a post-baseline safety assessment. |
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| Secondary | Percent of Participants Within Each Category of The EuroQuol Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) For Anxiety And Depression at Endpoint of The Randomized-withdrawal Period | The EuroQoL Group 5-Dimension 5-Level Self-Report Questionnaire (EQ-5D-5L) is a health-related quality of life (QoL) measure that assesses mobility, self-care, usual activities, pain/discomfort, and anxiety/depression as well as current overall health. It consists of a 5-item descriptive system that measures 5 dimensions of health, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is represented by a single item with 5 levels of responses, from poor health to good health. | The FAS. Three participants in the placebo group were randomized and included in the RSAS but not in the FAS. Not all participants in the FAS had data collected for this outcome. Visit 21 could include participants who discontinued but completed a final safety and efficacy assessment. | Posted | | Number | | percentage of participants | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) | | | | ID | Title | Description |
|---|
| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. | | OG001 | SPD489 (Randomized-withdrawal Period) | |
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| Secondary | Number of Participants With a Positive Response on The Columbia Suicide Severity Rating Scale (C-SSRS) at Endpoint of The Open-label Period | The C-SSRS is a semistructured interview that captures the occurrence, severity, and frequency of suicide-related thoughts and behaviors. The interview includes definitions and suggested questions to solicit the type of information needed to determine if a suicide-related thought or behaviour occurred. The interview was initiated with 5 (yes/no) questions, presented in ascending order of severity, about suicidal ideation. The most severe type of ideation was rated for frequency, duration, controllability, deterrents, and reason. If the answer to the first 2 ideation questions was "yes," the clinician asked questions 3-5. Active suicidal ideation included any participant who answered "yes" to questions 2-5. If the answers to ideation questions 1 and 2 were "No," then the clinician proceeded to 5 (yes/no) questions that addressed suicidal behavior, which was categorized as actual attempt, interrupted attempt, aborted attempt, preparatory acts or behaviors, and completed suicide. | The OSP. Three participants in the OSP did not have data collected for this outcome. Visit 8 included only participants who completed open-label treatment. | Posted | | Number | | participants | | Visit 8 (12 weeks after start of open-label treatment [Week 12]) | | | | ID | Title | Description |
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| OG000 | Open-label Safety Population | The Open-label Safety Population included all participants who had taken at least 1 dose of SPD489 in the open-label phase and who had a post-baseline safety assessment. |
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| Secondary | Number of Participants With a Positive Response on The Columbia Suicide Severity Rating Scale (C-SSRS) at Endpoint of The Randomized-withdrawal Period | The C-SSRS is a semistructured interview that captures the occurrence, severity, and frequency of suicide-related thoughts and behaviors. The interview includes definitions and suggested questions to solicit the type of information needed to determine if a suicide-related thought or behaviour occurred. The interview was initiated with 5 (yes/no) questions, presented in ascending order of severity, about suicidal ideation. The most severe type of ideation was rated for frequency, duration, controllability, deterrents, and reason. If the answer to the first 2 ideation questions was "yes," the clinician asked questions 3-5. Active suicidal ideation included any participant who answered "yes" to questions 2-5. If the answers to ideation questions 1 and 2 were "No," then the clinician proceeded to 5 (yes/no) questions that addressed suicidal behavior, which was categorized as actual attempt, interrupted attempt, aborted attempt, preparatory acts or behaviors, and completed suicide. | The Randomized Safety Analysis Set (RSAS), defined as participants in the SAS who were randomized and took at least 1 dose of investigational product in the randomized-withdrawal period. Four (placebo) and one (SPD489) participants were randomized but not treated and thus not included in the RSAS. Three participants had no data for this outcome. | Posted | | Number | | participants | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) | | | | ID | Title | Description |
|---|
| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. |
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| Secondary | Total Scores For The Amphetamine Cessation Symptom Assessment (ACSA) Scale During Follow-up | The ACSA was used in this study to assess potential withdrawal symptoms associated with chronic use of SPD489. The ACSA is a self-completed scale used to assess withdrawal symptoms. The scale has 16 symptom items rated on a 5-point scale ranging from 0 (not at all) to 4 (extremely). The ACSA total score ranges from 0-64, where a higher score indicates greater withdrawal symptom severity. | The RSAS. Four (placebo) and one (SPD489) participants were randomized but not treated and thus not included in the RSAS. Visits 21 and 22 could include participants who discontinued but completed a final safety and efficacy assessment. Not all participants had data for this outcome. | Posted | | Mean | Standard Deviation | units on a scale | | Visit 21 (26 weeks after randomization [Week 38] or Early Termination) and Visit 22 (7 days post last dose) | | | | ID | Title | Description |
|---|
| OG000 | Placebo (Randomized-withdrawal Period) | During the 26-week double-blind randomized-withdrawal phase, participants randomized to placebo received matching placebo capsules daily. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. | | OG001 | SPD489 (Randomized-withdrawal Period) | For participants randomized to SPD489, the optimal daily dose of 50 or 70mg was continued throughout the 26-week double-blind randomized-withdrawal phase. After the 26-week double-blind randomized-withdrawal phase, participants were followed for 1 week. |
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