Schizophrenia Clinical Trial
Official title:
Symptomatic Remission and Social Function in Patients Treated With Paliperidone ER
The purpose of this study is to explore the relationship between achieving symptomatic remission status by means of the 8 items of Positive and Negative Syndrome Scale (PANSS), and personal and social functioning by means of the Personal and Social Performance (PSP) scale in participants treated with flexibly dosed paliperidone ER.
Status | Completed |
Enrollment | 480 |
Est. completion date | June 2009 |
Est. primary completion date | June 2009 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Participants who meet the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV) criteria for schizophrenia (psychiatric disorder with symptoms of emotional instability, detachment from reality, often with delusions and hallucinations, and withdrawal into the self) - Participant is drug naive or participant's previous treatment is considered unsuccessful due to one or more of the following reasons: lack of efficacy, lack of tolerability or safety, lack of compliance and/or other reasons - Participants or their legally acceptable representatives had signed an informed consent document indicating that they understand the purpose of and procedures required for the study and were willing to participate in the study - Women must be postmenopausal for at least 1 year, surgically sterile, abstinent, or, if sexually active, agree to practice an effective method of birth control before entry and throughout the study and must have a negative urine pregnancy test at screening Exclusion Criteria: - Participants with use of clozapine, paliperidone extended release (ER), any conventional depot neuroleptic or Risperdal CONSTA during the last 3 months - Participants with serious unstable medical condition, including known clinically relevant laboratory abnormalities - Participants with history of neuroleptic malignant syndrome (high fever, rigid muscles, shaking, confusion, sweating more than usual, increased heart rate or blood pressure, or muscle pain or weakness) - Participants with known hypersensitivity to paliperidone ER or risperidone - Participants with inability to swallow the whole study medication tablet with aid of water |
Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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Johnson & Johnson Taiwan Ltd |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Change From Baseline in Positive and Negative Syndrome Scale (PANSS) Total Score at Week 12 | The PANSS is a 30-item scale to assess the neuropsychiatric symptoms of schizophrenia. The PANSS provides a total score and scores for 3 subscales, the positive subscale (7 items), the negative subscale (7 items), and the general psychopathology subscale (16 items), each item scored on a scale of 1 (absent) to 7 (extreme). The total score ranges from 30 to 210 and higher score indicates greater severity. | Baseline, Week 12 | No |
Other | Change From Baseline in Total Personal and Social Performance (PSP) Score at Week 12 | The PSP is 100-point validated clinician-rated scale that assesses degree of difficulty in 4 areas of functioning: socially useful activities, personal and social relationships, self-care, disturbing and aggressive behaviors rated on 6-point scale (1=absent to 6=very severe).Total transformed score from 1 to 100 is generated from raw score based on clinical interpretation of scores generated in 4 areas of functioning, with higher transformed score indicating better function. Total score is divided into 3 levels: 71-100 (mild difficulty); 31-70 (marked difficulty) and 1-30 (severe difficulty). | Baseline, Week 12 | No |
Primary | Percentage of Participants Achieving Symptomatic Remission by Means of Positive and Negative Syndrome Scale (PANSS) | The PANSS is a 30-item scale to assess the neuropsychiatric symptoms of schizophrenia (psychiatric disorder with symptoms of emotional instability, detachment from reality, often with delusions and hallucinations, and withdrawal into the self). The PANSS provides a total score and scores for 3 subscales, the positive subscale (7 items), the negative subscale (7 items), and the general psychopathology subscale (16 items), each item scored on a scale of 1 (absent), 2 (minimal), 3 (mild), 4 (moderate), 5 (moderately severe), 6 (severe) and 7 (extreme). The total score ranges from 30 to 210 and higher score indicates greater severity. Symptomatic remission was defined as achieving intensity level of mild or moderate on PANSS scale by all 8 items as the determinants for symptomatic remission: delusions, unusual thought content, hallucinatory behavior, conceptual disorganization, mannerisms/posturing, blunted affect, social withdrawal, lack of spontaneity. | End of study (Up to Week 12) | No |
Primary | Percentage of Participants Achieving Improvement in Personal and Social Performance (PSP) Score by at Least One Category on PSP Scale | The PSP is 100-point validated clinician-rated scale that assesses degree of difficulty in 4 areas of functioning: socially useful activities, personal and social relationships, self-care, disturbing and aggressive behaviors rated on 6-point scale (1=absent to 6=very severe).Total transformed score from 1 to 100 is generated from raw score based on clinical interpretation of scores generated in 4 areas of functioning, with higher transformed score indicating better function. Total score is divided into 3 levels: 71-100 (mild difficulty); 31-70 (marked difficulty) and 1-30 (severe difficulty). Percentage of participants achieving improvement in PSP score by at least one category was reported. | End of study (Up to Week 12) | No |
Secondary | Social Functioning Scale (SFS) Score | The SFS is a 36-item scale designed to assess social functioning in schizophrenia. It assesses abilities and performance in seven areas: social engagement, interpersonal communication, activities of daily living, recreation, social activities, competence at independent living, and occupation/employment. Total score ranges from 1 to 100 where higher score indicates a more favorable health state. | End of study (Up to Week 12) | No |
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