OBJECTIVE:To evaluate outcomes of clinical use of risperidone long-acting injection (RLAI) and determine factors predicting continuation with treatment. METHOD:This prospective, 3-year follow-up of consecutive patients started on treatment with RLAI in normal clinical practice between August 2002 and September 2003 obtained demographic and clinical data from case notes, prescription charts, and hospital computer records. To determine predictors of continuation, a proportional hazards regression (Cox) model was constructed. RESULTS:The study included 211 evaluable patients. Over 3 years, 84% of subjects discontinued RLAI; 27.7% of these switched to oral risperidone. The Cox model showed that younger age (p = .001), longer duration of illness (p = .001), inpatient status at initiation (p = .002), and an RLAI dose of 25 mg/2 weeks (p < .001) predicted greater probability of discontinuation. CONCLUSION:A small proportion of patients initiated on treatment with RLAI continued for 3 years. Outcome is likely to be improved by targeting RLAI treatment at specific patient groups and by using a dose of more than 25 mg/2 weeks.

译文

目的:评估利培酮长效注射剂(RLAI)的临床使用结果,并确定预测继续治疗的因素。
方法:这项对连续患者进行的为期3年的前瞻性随访,从2002年8月至2003年9月在正常临床实践中开始接受RLAI治疗,从病例记录,处方表和医院计算机记录中获得了人口统计学和临床​​数据。为了确定持续性的预测因素,构建了比例风险回归(Cox)模型。
结果:该研究包括211名可评估的患者。在3年中,有84%的受试者终止了RLAI;其中27.7%改用口服利培酮。 Cox模型显示年龄更小(p = .001),病程更长(p = .001),开始时的住院状态(p = .002)和RLAI剂量为25 mg / 2周(p <。 001)预测停产的可能性更大。
结论:一小部分开始接受RLAI治疗的患者持续3年。通过针对特定患者组进行RLAI治疗并使用超过25 mg / 2周的剂量,可能会改善结果。

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