- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01457339
Assess the Safety and Pharmacokinetics of Ascending, Multiple Oral Doses of SPD489 in Adults With Schizophrenia
May 13, 2021 updated by: Shire
A Phase 1, Randomized, Double-blind, Placebo Controlled Study to Assess the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Ascending, Multiple Oral Doses of SPD489 (Lisdexamfetamine Dimesylate) in Clinically Stable Adults With Schizophrenia
This is a multiple ascending dose study; the purpose of this study is to examine the safety, tolerability and pharmacokinetics (levels of drug in the blood) of SPD489 in Schizophrenic Patients who are currently maintained on a stable dose of an antipsychotic medication.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
31
Phase
- Phase 1
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
California
-
Glendale, California, United States, 91206
- California Clinical Trials
-
Long Beach, California, United States, 90806
- Collaborative Neuroscience Network, Inc
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 65 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Subjects must be diagnosed with schizophrenia, on a stable dose of an antipsychotic and not have any cardiac risk factors
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Placebo Comparator: Placebo
|
Placebo Capsule(s) for oral use taken once daily for 30 days
|
|
Experimental: SPD489 (Lisdexamfetamine dimesylate)
|
SPD489 administered orally in ascending doses (50mg, 70mg, 100mg, 150mg, 200mg, 250mg).
Each of these doses will be administered once daily for 5 days.
Total number of days dosed is 30 days.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Change From Baseline in Systolic Blood Pressure at Day 5: 50 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Systolic Blood Pressure at Day 5: 70 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Systolic Blood Pressure at Day 5: 100 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Systolic Blood Pressure at Day 5: 150 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Systolic Blood Pressure at Day 5: 200 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Systolic Blood Pressure at Day 5: 250 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Diastolic Blood Pressure at Day 5: 50 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Diastolic Blood Pressure at Day 5: 70 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Diastolic Blood Pressure at Day 5: 100 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Diastolic Blood Pressure at Day 5: 150 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Diastolic Blood Pressure at Day 5: 200 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Diastolic Blood Pressure at Day 5: 250 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Pulse Rate at Day 5: 50 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Pulse Rate at Day 5: 70 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Pulse Rate at Day 5: 100 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Pulse Rate at Day 5: 150 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Pulse Rate at Day 5: 200 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
|
Change From Baseline in Pulse Rate at Day 5: 250 mg
Time Frame: Baseline and day 5
|
Blood pressure and pulse measurements were taken using an automated blood pressure monitoring device (ideally using the same device, the same arm and in the same position throughout the study).
Measurements of vital signs were performed in triplicate (3 measurements) after the subject had been in a sitting position for at least 5 minutes.
Each of the 3 triplicate readings were performed in succession, at least 1-2 minutes apart, with the cuff fully deflated between measurements.
It was expected that the triplicate measurements be obtained within a 5-6 minute period.
|
Baseline and day 5
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Area Under the Steady-state Plasma Concentration-time Curve (AUC) of Lisdexamfetamine Dimesylate on Day 5: 50 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
AUC can be used as a measure of drug exposure.
It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.
|
Day 5 (12-hour sampling period post-dose)
|
|
Area Under the Steady-state Plasma Concentration-time Curve (AUC) of Lisdexamfetamine Dimesylate on Day 5: 70 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
AUC can be used as a measure of drug exposure.
It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.
|
Day 5 (12-hour sampling period post-dose)
|
|
Area Under the Steady-state Plasma Concentration-time Curve (AUC) of Lisdexamfetamine Dimesylate on Day 5: 100 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
AUC can be used as a measure of drug exposure.
It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.
|
Day 5 (12-hour sampling period post-dose)
|
|
Area Under the Steady-state Plasma Concentration-time Curve (AUC) of Lisdexamfetamine Dimesylate on Day 5: 150 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
AUC can be used as a measure of drug exposure.
It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.
|
Day 5 (12-hour sampling period post-dose)
|
|
Area Under the Steady-state Plasma Concentration-time Curve (AUC) of Lisdexamfetamine Dimesylate on Day 5: 200 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
AUC can be used as a measure of drug exposure.
It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.
|
Day 5 (12-hour sampling period post-dose)
|
|
Area Under the Steady-state Plasma Concentration-time Curve (AUC) of Lisdexamfetamine Dimesylate on Day 5: 250 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
AUC can be used as a measure of drug exposure.
It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.
|
Day 5 (12-hour sampling period post-dose)
|
|
Maximum Plasma Concentration (Cmax) of Lisdexamfetamine Dimesylate on Day 5: 50 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.
|
Day 5 (12-hour sampling period post-dose)
|
|
Maximum Plasma Concentration (Cmax) of Lisdexamfetamine Dimesylate on Day 5: 70 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.
|
Day 5 (12-hour sampling period post-dose)
|
|
Maximum Plasma Concentration (Cmax) of Lisdexamfetamine Dimesylate on Day 5: 100 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.
|
Day 5 (12-hour sampling period post-dose)
|
|
Maximum Plasma Concentration (Cmax) of Lisdexamfetamine Dimesylate on Day 5: 150 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.
|
Day 5 (12-hour sampling period post-dose)
|
|
Maximum Plasma Concentration (Cmax) of Lisdexamfetamine Dimesylate on Day 5: 200 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.
|
Day 5 (12-hour sampling period post-dose)
|
|
Maximum Plasma Concentration (Cmax) of Lisdexamfetamine Dimesylate on Day 5: 250 mg
Time Frame: Day 5 (12-hour sampling period post-dose)
|
Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.
|
Day 5 (12-hour sampling period post-dose)
|
|
Change From Baseline in Positive and Negative Syndrome Scale (PANSS) Total Score at Day 5: 50 mg
Time Frame: Baseline and Day 5
|
The PANSS is a validated measure that evaluates the presence, absence, and severity of 30 symptoms of schizophrenia including both positive and negative symptoms and general psychopathology.
Each of the 30-items are rated on a scale of 1 (absent) to 7 (extreme) with a total scoring range of 30 to 210.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Positive and Negative Syndrome Scale (PANSS) Total Score at Day 5: 70 mg
Time Frame: Baseline and Day 5
|
The PANSS is a validated measure that evaluates the presence, absence, and severity of 30 symptoms of schizophrenia including both positive and negative symptoms and general psychopathology.
Each of the 30-items are rated on a scale of 1 (absent) to 7 (extreme) with a total scoring range of 30 to 210.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Positive and Negative Syndrome Scale (PANSS) Total Score at Day 5: 100 mg
Time Frame: Baseline and Day 5
|
The PANSS is a validated measure that evaluates the presence, absence, and severity of 30 symptoms of schizophrenia including both positive and negative symptoms and general psychopathology.
Each of the 30-items are rated on a scale of 1 (absent) to 7 (extreme) with a total scoring range of 30 to 210.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Positive and Negative Syndrome Scale (PANSS) Total Score at Day 5: 150 mg
Time Frame: Baseline and Day 5
|
The PANSS is a validated measure that evaluates the presence, absence, and severity of 30 symptoms of schizophrenia including both positive and negative symptoms and general psychopathology.
Each of the 30-items are rated on a scale of 1 (absent) to 7 (extreme) with a total scoring range of 30 to 210.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Positive and Negative Syndrome Scale (PANSS) Total Score at Day 5: 200 mg
Time Frame: Baseline and Day 5
|
The PANSS is a validated measure that evaluates the presence, absence, and severity of 30 symptoms of schizophrenia including both positive and negative symptoms and general psychopathology.
Each of the 30-items are rated on a scale of 1 (absent) to 7 (extreme) with a total scoring range of 30 to 210.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Positive and Negative Syndrome Scale (PANSS) Total Score at Day 5: 250 mg
Time Frame: Baseline and Day 5
|
The PANSS is a validated measure that evaluates the presence, absence, and severity of 30 symptoms of schizophrenia including both positive and negative symptoms and general psychopathology.
Each of the 30-items are rated on a scale of 1 (absent) to 7 (extreme) with a total scoring range of 30 to 210.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Scale for the Assessment of Negative Symptoms (SANS-18) Total Score at Day 5: 50 mg
Time Frame: Baseline and Day 5
|
The SANS was modified by eliminating the global and attention items; the score of the remaining non-global items is referred to as the SANS-18 total score.
Each of the 18-items is scored on a scale from 0 (not at all) to 5 (severe) with a total scoring range of 0 to 90.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Scale for the Assessment of Negative Symptoms (SANS-18) Total Score at Day 5: 70 mg
Time Frame: Baseline and Day 5
|
The SANS was modified by eliminating the global and attention items; the score of the remaining non-global items is referred to as the SANS-18 total score.
Each of the 18-items is scored on a scale from 0 (not at all) to 5 (severe) with a total scoring range of 0 to 90.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Scale for the Assessment of Negative Symptoms (SANS-18) Total Score at Day 5: 100 mg
Time Frame: Baseline and Day 5
|
The SANS was modified by eliminating the global and attention items; the score of the remaining non-global items is referred to as the SANS-18 total score.
Each of the 18-items is scored on a scale from 0 (not at all) to 5 (severe) with a total scoring range of 0 to 90.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Scale for the Assessment of Negative Symptoms (SANS-18) Total Score at Day 5: 150 mg
Time Frame: Baseline and Day 5
|
The SANS was modified by eliminating the global and attention items; the score of the remaining non-global items is referred to as the SANS-18 total score.
Each of the 18-items is scored on a scale from 0 (not at all) to 5 (severe) with a total scoring range of 0 to 90.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Scale for the Assessment of Negative Symptoms (SANS-18) Total Score at Day 5: 200 mg
Time Frame: Baseline and Day 5
|
The SANS was modified by eliminating the global and attention items; the score of the remaining non-global items is referred to as the SANS-18 total score.
Each of the 18-items is scored on a scale from 0 (not at all) to 5 (severe) with a total scoring range of 0 to 90.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Scale for the Assessment of Negative Symptoms (SANS-18) Total Score at Day 5: 250 mg
Time Frame: Baseline and Day 5
|
The SANS was modified by eliminating the global and attention items; the score of the remaining non-global items is referred to as the SANS-18 total score.
Each of the 18-items is scored on a scale from 0 (not at all) to 5 (severe) with a total scoring range of 0 to 90.
Higher scores indicate more impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Calgary Depression Scale for Schizophrenia (CDSS) Total Score at Day 5: 50 mg
Time Frame: Baseline and Day 5
|
CDSS is a 9-item scale to evaluate depression in subjects who have schizophrenia rated from 0 (absence of symptoms) to 3 (severe symptoms) with a total score range of 0 to 27.
Lower scores indicate less depression.
|
Baseline and Day 5
|
|
Change From Baseline in Calgary Depression Scale for Schizophrenia (CDSS) Total Score at Day 5: 70 mg
Time Frame: Baseline and Day 5
|
CDSS is a 9-item scale to evaluate depression in subjects who have schizophrenia rated from 0 (absence of symptoms) to 3 (severe symptoms) with a total score range of 0 to 27.
Lower scores indicate less depression.
|
Baseline and Day 5
|
|
Change From Baseline in Calgary Depression Scale for Schizophrenia (CDSS) Total Score at Day 5: 100 mg
Time Frame: Baseline and Day 5
|
CDSS is a 9-item scale to evaluate depression in subjects who have schizophrenia rated from 0 (absence of symptoms) to 3 (severe symptoms) with a total score range of 0 to 27.
Lower scores indicate less depression.
|
Baseline and Day 5
|
|
Change From Baseline in Calgary Depression Scale for Schizophrenia (CDSS) Total Score at Day 5: 150 mg
Time Frame: Baseline and Day 5
|
CDSS is a 9-item scale to evaluate depression in subjects who have schizophrenia rated from 0 (absence of symptoms) to 3 (severe symptoms) with a total score range of 0 to 27.
Lower scores indicate less depression.
|
Baseline and Day 5
|
|
Change From Baseline in Calgary Depression Scale for Schizophrenia (CDSS) Total Score at Day 5: 200 mg
Time Frame: Baseline and Day 5
|
CDSS is a 9-item scale to evaluate depression in subjects who have schizophrenia rated from 0 (absence of symptoms) to 3 (severe symptoms) with a total score range of 0 to 27.
Lower scores indicate less depression.
|
Baseline and Day 5
|
|
Change From Baseline in Calgary Depression Scale for Schizophrenia (CDSS) Total Score at Day 5: 250 mg
Time Frame: Baseline and Day 5
|
CDSS is a 9-item scale to evaluate depression in subjects who have schizophrenia rated from 0 (absence of symptoms) to 3 (severe symptoms) with a total score range of 0 to 27.
Lower scores indicate less depression.
|
Baseline and Day 5
|
|
Change From Baseline in Simpson Angus Scale (SAS) Total Score at Day 5: 50 mg
Time Frame: Baseline and Day 5
|
SAS is a 10-item scale used to evaluate the presence and severity of extrapyramidal symptoms.
The items are scored on a scale from 0 to 4 with item-specific definitions given for each point.
Total scores range from 0 to 40.
Lower scores indicate less impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Simpson Angus Scale (SAS) Total Score at Day 5: 70 mg
Time Frame: Baseline and Day 5
|
SAS is a 10-item scale used to evaluate the presence and severity of extrapyramidal symptoms.
The items are scored on a scale from 0 to 4 with item-specific definitions given for each point.
Total scores range from 0 to 40.
Lower scores indicate less impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Simpson Angus Scale (SAS) Total Score at Day 5: 100 mg
Time Frame: Baseline and Day 5
|
SAS is a 10-item scale used to evaluate the presence and severity of extrapyramidal symptoms.
The items are scored on a scale from 0 to 4 with item-specific definitions given for each point.
Total scores range from 0 to 40.
Lower scores indicate less impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Simpson Angus Scale (SAS) Total Score at Day 5: 150 mg
Time Frame: Baseline and Day 5
|
SAS is a 10-item scale used to evaluate the presence and severity of extrapyramidal symptoms.
The items are scored on a scale from 0 to 4 with item-specific definitions given for each point.
Total scores range from 0 to 40.
Lower scores indicate less impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Simpson Angus Scale (SAS) Total Score at Day 5: 200 mg
Time Frame: Baseline and Day 5
|
SAS is a 10-item scale used to evaluate the presence and severity of extrapyramidal symptoms.
The items are scored on a scale from 0 to 4 with item-specific definitions given for each point.
Total scores range from 0 to 40.
Lower scores indicate less impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Simpson Angus Scale (SAS) Total Score at Day 5: 250 mg
Time Frame: Baseline and Day 5
|
SAS is a 10-item scale used to evaluate the presence and severity of extrapyramidal symptoms.
The items are scored on a scale from 0 to 4 with item-specific definitions given for each point.
Total scores range from 0 to 40.
Lower scores indicate less impairment.
|
Baseline and Day 5
|
|
Change From Baseline in Barnes Akathisia Scale (BAS) Total Score at Day 5: 50 mg
Time Frame: Baseline and Day 5
|
BAS scale has objective, subjective, and global impression components of akathisia (motor restlessness that manifests itself with an inability to sit still or remain motionless).
Objective and subjective components are rated on a scale from 0 (normal/absence) to 3 (severe) and are summed yielding a total score of 0 to 9. Global impression is rated on a scale from 0 (absent) to 5 (severe) with a total score ranging from 0 to 5. Lower scores indicate reduced restlessness.
|
Baseline and Day 5
|
|
Change From Baseline in Barnes Akathisia Scale (BAS) Total Score at Day 5: 70 mg
Time Frame: Baseline and Day 5
|
BAS scale has objective, subjective, and global impression components of akathisia (motor restlessness that manifests itself with an inability to sit still or remain motionless).
Objective and subjective components are rated on a scale from 0 (normal/absence) to 3 (severe) and are summed yielding a total score of 0 to 9. Global impression is rated on a scale from 0 (absent) to 5 (severe) with a total score ranging from 0 to 5. Lower scores indicate reduced restlessness.
|
Baseline and Day 5
|
|
Change From Baseline in Barnes Akathisia Scale (BAS) Total Score at Day 5: 100 mg
Time Frame: Baseline and Day 5
|
BAS scale has objective, subjective, and global impression components of akathisia (motor restlessness that manifests itself with an inability to sit still or remain motionless).
Objective and subjective components are rated on a scale from 0 (normal/absence) to 3 (severe) and are summed yielding a total score of 0 to 9. Global impression is rated on a scale from 0 (absent) to 5 (severe) with a total score ranging from 0 to 5. Lower scores indicate reduced restlessness.
|
Baseline and Day 5
|
|
Change From Baseline in Barnes Akathisia Scale (BAS) Total Score at Day 5: 150 mg
Time Frame: Baseline and Day 5
|
BAS scale has objective, subjective, and global impression components of akathisia (motor restlessness that manifests itself with an inability to sit still or remain motionless).
Objective and subjective components are rated on a scale from 0 (normal/absence) to 3 (severe) and are summed yielding a total score of 0 to 9. Global impression is rated on a scale from 0 (absent) to 5 (severe) with a total score ranging from 0 to 5. Lower scores indicate reduced restlessness.
|
Baseline and Day 5
|
|
Change From Baseline in Barnes Akathisia Scale (BAS) Total Score at Day 5: 200 mg
Time Frame: Baseline and Day 5
|
BAS scale has objective, subjective, and global impression components of akathisia (motor restlessness that manifests itself with an inability to sit still or remain motionless).
Objective and subjective components are rated on a scale from 0 (normal/absence) to 3 (severe) and are summed yielding a total score of 0 to 9. Global impression is rated on a scale from 0 (absent) to 5 (severe) with a total score ranging from 0 to 5. Lower scores indicate reduced restlessness.
|
Baseline and Day 5
|
|
Change From Baseline in Barnes Akathisia Scale (BAS) Total Score at Day 5: 250 mg
Time Frame: Baseline and Day 5
|
BAS scale has objective, subjective, and global impression components of akathisia (motor restlessness that manifests itself with an inability to sit still or remain motionless).
Objective and subjective components are rated on a scale from 0 (normal/absence) to 3 (severe) and are summed yielding a total score of 0 to 9. Global impression is rated on a scale from 0 (absent) to 5 (severe) with a total score ranging from 0 to 5. Lower scores indicate reduced restlessness.
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Groton Maze Learning Test, 50 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Groton Maze Learning Test, 70 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Groton Maze Learning Test, 100 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Groton Maze Learning Test, 150 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Groton Maze Learning Test, 200 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Groton Maze Learning Test, 250 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Detection Task, 50 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Detection Task, 70 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Detection Task, 100 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Detection Task, 150 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Detection Task, 200 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Detection Task, 250 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Identification Task, 50 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Identification Task, 70 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Identification Task, 100 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Identification Task, 150 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Identification Task, 200 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: Identification Task, 250 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: One Card Learning Task, 50 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: One Card Learning Task, 70 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: One Card Learning Task, 100 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: One Card Learning Task, 150 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: One Card Learning Task, 200 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
|
Change From Baseline in Cognitive Test Battery (CogState Battery) Score at Day 5: One Card Learning Task, 250 mg
Time Frame: Baseline and Day 5
|
This battery is a series of 4 computerized cognition tests (Groton Maze Learning Test, Detection Task, Identification Task, and One Card Learning Task) designed to measure reaction time, visual learning and reasoning, and problem solving.
The entire battery takes approximately 12 minutes to complete.
CogState scores are measured on a linear scale (no maximum score).
The Groton Maze Learning Test measures total number of errors made in problem solving (lower score = better performance).
The Detection Task is measured by speed of performance (lower score = better performance).
The Identification Task is measured by speed of performance (lower score = better performance).
One Card Learning Task measures the accuracy of performance (higher score = better performance).
|
Baseline and Day 5
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
October 21, 2011
Primary Completion (Actual)
January 20, 2012
Study Completion (Actual)
January 20, 2012
Study Registration Dates
First Submitted
October 19, 2011
First Submitted That Met QC Criteria
October 19, 2011
First Posted (Estimate)
October 21, 2011
Study Record Updates
Last Update Posted (Actual)
June 3, 2021
Last Update Submitted That Met QC Criteria
May 13, 2021
Last Verified
May 1, 2021
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Mental Disorders
- Schizophrenia Spectrum and Other Psychotic Disorders
- Schizophrenia
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Neurotransmitter Uptake Inhibitors
- Membrane Transport Modulators
- Dopamine Agents
- Dopamine Uptake Inhibitors
- Central Nervous System Stimulants
- Lisdexamfetamine Dimesylate
Other Study ID Numbers
- SPD489-119
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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