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Sponsored by: |
Janssen-Ortho Inc., Canada |
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Information provided by: | Janssen-Ortho Inc., Canada |
ClinicalTrials.gov Identifier: | NCT00246272 |
The purpose of this study is to evaluate the maintenance of clinical effect of a rapidly-dissolving tablet form of risperidone (an antipsychotic medication) in adult schizophrenia patients switched from their previous equivalent dose of RISPERDAL® tablets
Condition | Intervention | Phase |
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Schizophrenia |
Drug: risperidone |
Phase III |
Study Type: | Interventional |
Study Design: | Treatment, Non-Randomized, Open Label, Single Group Assignment, Safety/Efficacy Study |
Official Title: | An Open-Label Study Evaluating the Maintenance of Clinical Effect in Adults With Schizophrenia Switched From RISPERDAL® Tablets (Risperidone) to an Equivalent Dose of a Rapidly-Dissolving Tablet Formulation of Risperdone |
Enrollment: | 82 |
Study Start Date: | October 2004 |
Study Completion Date: | May 2006 |
This trial is a non-randomized, open-label, single arm, multicentre study aimed at evaluating the maintenance of clinical effect of the rapidly-dissolving tablet dosage form of risperidone, in patients switched from their previous equivalent dose of conventional risperidone tablets (doses of 0.5 mg, 1 mg, 2 mg, 3 mg or 4 mg/day).
Approximately 100 adult schizophrenia patients (ages >= 18 years) who are symptomatically stable will be enrolled. Patients will be asked to take an equivalent dose of the rapidly-dissolving tablet form of risperidone for 4 weeks of treatment. Other psychotropic medications taken at study entry may be continued throughout the study, providing the dose was stable prior to entry for a minimum of 4 weeks and will remain stable throughout the course of the study. Dose escalation/reduction of rapidly-dissolving risperidone tablets is not permitted.
Study visits will take place twice over the 4 week period, once at study entry and again at the final visit. The primary efficacy parameter will be the CGI-Severity (CGI-S) score for maintenance of clinical effect.
Secondarily, two 5-point Likert scales will be completed, one measuring clinician's assessment of anxiety symptoms and the other measuring clinician's assessment of depressive symptoms. Patients with existing symptoms of psychosis will be clinician rated on a 5-point Likert scale. Other secondary assessments include: Visual Analogue Scale (VAS) for risperidone acceptability, completed by the patient or the caregiver (if applicable).
For each subject, the VAS score will be calculated on a 10 cm line ranging from a score of "0" (not acceptable) to "10" (very acceptable). Safety evaluations during the study will include vital signs and physical examination, body weight, adverse event surveillance, and urine pregnancy tests for females of childbearing potential. The study hypothesis is that the clinical effect will be maintained when schizophrenia patients previously stabilized on risperidone conventional tablets are treated with rapidly-dissolving risperidone tablets, and that risperidone rapidly dissolving tablets will be well tolerated.
Subjects who are stable on conventional risperidone tablets (0.5, 1, 2, 3 or 4 mg/day) for at least 2 weeks will be switched to an equivalent dose of rapidly-dissolving risperidone tablets (0.5, 1, 2, 3 or 4 mg/day). The study medication will be taken orally for 4 weeks, using the same frequency of dosing (once-daily, twice-daily, etc.) as with their previous conventional tablet regimen.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Study ID Numbers: | CR005956 |
Study First Received: | October 28, 2005 |
Last Updated: | April 23, 2009 |
ClinicalTrials.gov Identifier: | NCT00246272 History of Changes |
Health Authority: | United States: Institutional Review Board |
risperidone schizophrenia rapidly-dissolving |
Neurotransmitter Agents Tranquilizing Agents Risperidone Psychotropic Drugs Central Nervous System Depressants Antipsychotic Agents Serotonin |
Schizophrenia Dopamine Mental Disorders Psychotic Disorders Dopamine Agents Schizophrenia and Disorders with Psychotic Features |
Neurotransmitter Agents Tranquilizing Agents Molecular Mechanisms of Pharmacological Action Physiological Effects of Drugs Psychotropic Drugs Risperidone Central Nervous System Depressants Dopamine Antagonists Antipsychotic Agents |
Pharmacologic Actions Schizophrenia Serotonin Antagonists Serotonin Agents Mental Disorders Therapeutic Uses Dopamine Agents Central Nervous System Agents Schizophrenia and Disorders with Psychotic Features |