The primary objective of the study is to demonstrate the efficacy of SPD489 compared with placebo in adults (18 55 years of age inclusive) with moderate to severe Binge Eating Disorder at Visit 8 (Weeks 11 and 12) as measured by the number of binge days (defined as days during which at least 1 binge episode occurs) per week as assessed by clinical interview based on subject diary
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
383
50 or 70 mg administered orally, once-daily for up to 12 weeks
Administered once-daily, orally, for up to 12 weeks
Change From Baseline in the Number of Binge Days Per Week at Visit 8 (Weeks 11-12)
Binge days defined as days during which at least 1 binge episode occurred. As assessed by clinical interview based on participant binge diary.
Time frame: Baseline and Visit 8 (Weeks 11-12)
Percentage of Participants With Improvement on Clinical Global Impression-Improvement (CGI-I) Scores
CGI-I consists of a 7-point scale ranging from 1 (very much improved) to 7 (very much worse). Improvement is defined as a score of 1 (very much improved) or 2 (much improved) on the scale.
Time frame: Up to 12 weeks
Percentage of Participants With a 4-Week Cessation From Binge Eating
4-week cessation from binge eating is defined as no binge eating episodes for 28 consecutive days prior to the last study visit.
Time frame: Up to 12 weeks
Percent Change From Baseline in Body Weight at Week 12
Time frame: Baseline and Week 12
Change From Baseline in Yale-Brown Obsessive Compulsive Scale Modified for Binge Eating (Y-BOCS-BE) Total Score at Week 12
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). Total scores range from 0 to 40. Reduction in total score indicates improvement.
Time frame: Baseline and Week 12
Change From Baseline in Fasting Triglyceride Levels at Up to 12 Weeks
Time frame: Baseline and Week 12/Early termination (ET)
Change From Baseline In Fasting Total Cholesterol Levels at Up to 12 Weeks
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Birmingham Research Group
Birmingham, Alabama, United States
Clinical Study Centers, LLC
Little Rock, Arkansas, United States
Trimed Clinical Trials
Corona, California, United States
Pharmacology Research Institute
Encino, California, United States
Pharmacology Research Institute
Los Alamitos, California, United States
Pacific Research Partners, LLC
Oakland, California, United States
Research Across America
Santa Ana, California, United States
Western Affiliated Research Institute, Inc.
Denver, Colorado, United States
Gulfcoast Clinical Research
Fort Myers, Florida, United States
Clinical Neuroscience Solutions, Inc.
Jacksonville, Florida, United States
...and 40 more locations
Time frame: Baseline and Week 12/ET
Change From Baseline in Hemoglobin A1c Levels at Up to 12 Weeks
Time frame: Baseline and Week 12/ET
Binge Eating Response
Response is based on the reduction in the number of binge eating episodes. Percentage of participants with response was reported. Responses were categorized as follows: 1-week Cessation = 100% reduction in binge episodes during the preceding 7 days. Marked Reduction = 99% to 75% reduction during the time since the previous visit. Moderate Reduction = 74% to 50% reduction during the time since the previous visit. Negative to Minimal Reduction = \<50% reduction during the time since the previous visit.
Time frame: Week 12/ET
Change From Baseline in the Number of Binge Episodes Per Week at Visit 8 (Weeks 11-12)
Time frame: Baseline and Visit 8 (Weeks 11-12)
Change From Baseline in Eating Inventory Scores at Week 12
The Eating Inventory also known as the Three-Factor Eating Questionnaire is a 51-item self-reported questionnaire intended to assess 3 dimensions of eating behavior. There are 36 true/false items, 14 items on a 4-point Likert scale (1=eat rarely to 4=always), and 1 item on a 6-point Likert scale (1=eat whatever you want to 6=constantly limiting food intake). Cognitive Restraint score ranges from 0-21. Hunger score ranges from 0-14. Disinhibition score ranges from 0-16. Higher scores denote higher levels of restrained eating, disinhibited eating and predisposition to hunger.
Time frame: Baseline and Week 12
Change From Baseline in Binge Eating Scale (BES) Score at Week 12
The BES is a self-reported questionnaire containing 16 items designed to assess behavioral, affective, and attitudinal components of the subjective experience of binge eating. Each item is assessed based on 1 of 4 responses, with 1 denoting that a participant has greater control over eating behavior and 4 denoting that a participant had less control over eating behavior. A total score (sum of the 16 items) may range from 16-64. A lower score indicates greater control over eating behavior.
Time frame: Baseline and Week 12
Change From Baseline in Frontal Systems Behavior (FrSBe) Total Score at Week 12
The FrSBe is a 46-item self-rating scale designed to measure the neurobehavioral traits associated with the 3 primary regions of the prefrontal cortex. Participants were asked to indicate the frequency with which they have engaged in certain behaviors using a rating scale from "1" (almost never) to "5" (almost always). Summary scores were calculated and converted to t-score. A decrease from baseline in FrSBe total score represents improvement.
Time frame: Baseline and Week 12
EuroQoL Group 5-Dimension 5-Level Self-Report (EQ-5D-5L): Mobility
Quality of life was assessed using the EQ-5D-5L, which is one of the most widely used generic index measures of health-related quality of life. 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. Percentage of participants with various mobility conditions were reported.
Time frame: Up to 12 weeks
EuroQoL Group 5-Dimension 5-Level Self-Report (EQ-5D-5L): Self-Care
Quality of life was assessed using the EQ-5D-5L, which is one of the most widely used generic index measures of health-related quality of life. 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. Percentage of participants with various self-care conditions were reported.
Time frame: Up to 12 weeks
EuroQoL Group 5-Dimension 5-Level Self-Report (EQ-5D-5L): Usual Activities
Quality of life was assessed using the EQ-5D-5L, which is one of the most widely used generic index measures of health-related quality of life. 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. Percentage of participants with various usual activities conditions were reported.
Time frame: Up to 12 weeks
EuroQoL Group 5-Dimension 5-Level Self-Report (EQ-5D-5L): Pain/Discomfort
Quality of life was assessed using the EQ-5D-5L, which is one of the most widely used generic index measures of health-related quality of life. 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. Percentage of participants with various pain/discomfort conditions were reported.
Time frame: Up to 12 weeks
EuroQoL Group 5-Dimension 5-Level Self-Report (EQ-5D-5L): Anxiety/Depression
Quality of life was assessed using the EQ-5D-5L, which is one of the most widely used generic index measures of health-related quality of life. 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. Percentage of participants with various anxiety/depression conditions were reported.
Time frame: Up to 12 weeks
Columbia-Suicide Severity Rating Scale (C-SSRS)
C-SSRS is a semi-structured interview that captures the occurrence, severity, and frequency of suicide-related thoughts and behaviors during the assessment period. 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 assessment is done by the nature of the responses, not by a numbered scale. Number of participants with suicidal ideation and suicidal behavior were reported.
Time frame: Up to 12 weeks
Amphetamine Cessation Symptom Assessment (ACSA) Total Score
ACSA scale has 16 symptom items rated on a scale from 0 (not at all) to 4 (extremely) with a possible total score range of 0 to 64. Higher scores indicate greater withdrawal symptom severity.
Time frame: Up to 12 weeks