A Randomized, Double-Blind, Parallel-Group, Comparative Study of Flexible Doses of Paliperidone Palmitate and Flexible Doses of Risperidone Long-Acting Intramuscular Injection in Subjects With Schizophrenia
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 1,221
- 主要终点
- Change in the Positive and Negative Syndrome Scale (PANSS) Total Score for Schizophrenia
研究概览
简要总结
The purpose of this study is to demonstrate the effectiveness of paliperidone palmitate in patients with Schizophrenia.
详细描述
This is a randomized (patients assigned to treatment groups by chance), double-blind (patient and study staff will not know the treatment assignment) study of paliperidone palmitate compared with RISPERDAL CONSTA (Risperidone Long-Acting Intramuscular Injection) in adult patients with schizophrenia. The total duration of the study will be approximately 14 weeks. For those patients without source documentation of tolerability to oral (by mouth) risperidone or paliperidone Extended Release (ER) tablets, injectable RISPERDAL CONSTA or paliperidone palmitate, or those patients who were not currently taking another antipsychotic, a minimum of 4 days and a maximum of 6 days of oral paliperidone ER treatment at a dosage of 6 mg/day will be administered for tolerability testing before the first injection of double-blind (DB) study drug (paliperidone palmitate or RISPERDAL CONSTA). During the DB period, study drug will be administered to patients as an intramuscular (i.m.) injection. Paliperidone palmitate (PP) 150mg equivalent (eq) (and RISPERDAL CONSTA placebo) at Baseline (BL) (Day 1), 100mg eq at Visit (V) 4 (Day 8), 50 or 100mg eq at V7 (Day 36), and 50,100,or 150mg eq at V9 (Day 64) or RISPERDAL CONSTA (RC) 25mg at V4 and V6 (Day 22), 25 or 37.5mg at V7, and 25, 37.5, or 50mg at V9 will be given as i.m. injections. Patients in the RC group will also take risperidone tablets (1-6 mg/day) at BL for 28 days and be given an injection of PP placebo at BL, V1, V7, and V9.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Meet diagnostic criteria for schizophrenia according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria as specified by the protocol for at least 1 year before screening
- •Prior medical records, written documentation or verbal information obtained from previous psychiatric providers obtained by the investigator must be consistent with the diagnosis of schizophrenia
- •A total PANSS score between 60 and 120, inclusive, at screening and baseline; Body mass index (BMI) at the screening visit BMI at least 17 kg/m2
- •Female patients must be postmenopausal for at least 2 years, surgically sterile, abstinent, or, if sexually active, be practicing an effective method of birth control before study entry and throughout the study as specified by the protocol. Women of childbearing potential must have a negative serum beta-human chorionic gonadotropin (b hCG) pregnancy test result at screening.
排除标准
- •Patient unable to provide consent or involuntarily committed to psychiatric hospitalization; A primary, active DSM-IV diagnosis on Axis I other than schizophrenia
- •A DSM-IV diagnosis of active substance dependence within 3 months before screening (nicotine and caffeine are not exclusionary)
- •History of treatment resistance as defined by failure to respond to 2 adequate treatments with different antipsychotic medications (an adequate treatment is defined as a minimum of 6 weeks at maximum tolerated dosage)
- •Relevant history or current presence of any significant or unstable cardiovascular, respiratory, neurologic (including seizures or significant cerebrovascular disease), renal, hepatic, hematologic, endocrine, immunologic, or other systemic disease including history of neuroleptic malignant syndrome; History of any severe pre-existing gastrointestinal narrowing or inability to swallow oral study drug whole with the aid of water (applies to those patients requiring oral tolerability only)
- •Significant risk of suicidal or violent behavior, as clinically assessed by the investigator ; History of life-threatening allergic reaction to any drug; Known or suspected hypersensitivity or intolerance to risperidone, paliperidone, 20% Intralipid, or any of their excipients (e.g., soybean oil, egg yolks, phospholipids, and glycerol)
- •Have received an experimental drug or experimental biologic, or used an experimental medical device within 6 months before screening; History of any active malignancy within the previous 5 years, with the exception of basal cell carcinomas
- •Women who are pregnant or breast-feeding or are planning to become pregnant uring the study
研究组 & 干预措施
RISPERDAL CONSTA
RISPERDAL CONSTA 25-50 mg eq every 2 weeks
干预措施: RISPERDAL CONSTA (Drug)
R092670
Paliperidone Palmitate 50-150 mg eq every 4 wks
干预措施: Paliperidone palmitate (Drug)
结局指标
主要结局
Change in the Positive and Negative Syndrome Scale (PANSS) Total Score for Schizophrenia
时间窗: Baseline to the last postrandomization assessment in the double-blind treatment period (approximately 13 weeks)
The PANSS scale is used to assess the neuropsychiatric symptoms of schizophrenia. The 30-item PANSS scale provides a total score (sum of the scores of all 30 items) and scores for 3 subscales, the positive subscale (7 items), the negative subscale (7 items),and the general psychopathology subscale (16 items), each item rated on a scale of 1 (absent) to 7 (extreme).
次要结局
- The Change From Baseline for the CGI-S Score(Baseline to the last postrandomization assessment in the double-blind treatment period (approximately 13 weeks)])
- The Change From Baseline in the PSP Score(Baseline to the last postrandomization assessment in the double-blind treatment period (approximately 13 weeks))