Efficacy, Safety, and Tolerability of SPD489 in Adults With Schizophrenia and Predominant Negativ… (NCT00922272) | Clinical Trial Compass
CompletedPhase 2
Efficacy, Safety, and Tolerability of SPD489 in Adults With Schizophrenia and Predominant Negative Symptoms
United States92 participantsStarted 2009-09-14
Plain-language summary
To explore the efficacy of SPD489, as adjunctive therapy to a stable dose of atypical antipsychotic medication, on negative symptoms in adult subjects with clinically stable schizophrenia and predominant negative symptoms, as measured by the Scale for the Assessment of Negative Symptoms (SANS).
Who can participate
Age range
18 Years – 55 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Adults aged 18-55
* Clinically stable Schizophrenia and predominant negative symptoms
* Taking a stable dose of antipsychotic medication
Exclusion Criteria:
* Clinically notable positive symptoms defined by PANSS
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Change From Open-label Baseline in Modified Scale for the Assessment of Negative Symptoms (SANS-18) Total Score at Week 10 Open-label Phase, Last Observation Carried Forward (LOCF)
Timeframe: Open-label Baseline and Week 10 Open-label Phase
2
Change From Double-blind Randomization Baseline in SANS-18 Total Score at Week 4 Double-blind Phase, Termination Observation Carried Forward (TOCF)
Timeframe: Double-blind Randomization Baseline and Week 4 Double-blind Phase