A Prospective, Sixteen-Week, Double-Blind, Placebo-Controlled, Trial of Seroquel in Combination With Treatment as Usual in Patients With GAD and Remitted Comorbid Opiate Dependence
试验速览
- 阶段
- 4 期
- 状态
- 终止
- 入组人数
- 14
- 试验地点
- 1
- 主要终点
- Hamilton Anxiety Scale at 16 Weeks
研究概览
简要总结
This is a 16 week study of the efficacy of quetiapine in treating symptoms of generalized anxiety disorder (GAD) in subjects with comorbid opiate dependence. The study will be conducted in a prospective, randomized, double-blind, and placebo-controlled fashion. Study subjects will be inpatients at a residential drug-treatment facility, enrolled in a 1 year methadone-to-abstinence treatment plan. Subjects will be randomized to receive either quetiapine or placebo in addition to ongoing drug addiction treatment. Subjects will be followed for 16 weeks and a variety of psychometric assessments will be made.
Hypothesis One: Compared to placebo, Quetiapine will demonstrate a greater reduction in symptoms of anxiety in subjects with GAD and remitted comorbid opiate abuse.
Exploratory Hypotheses: Compared to placebo, Quetiapine will demonstrate a greater improvement in psychosocial functioning and compliance with community norms in subjects enrolled in a residential drug addiction treatment facility.
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
- Triple (Participant, Care Provider, Outcomes Assessor)
入排标准
- 年龄范围
- 21 Years 至 65 Years(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Provision of written informed consent
- •A diagnosis of opiate dependence as defined by Diagnostic and Statistical Manual of Mental Disorders- Fourth Edition (DSM-IV) during the past two years.
- •A diagnosis of generalized anxiety disorder as defined by Diagnostic and Statistical Manual of Mental Disorders- Fourth Edition (DSM-IV) within the past 6 months.
- •Males and females aged 21-55 years
- •Female patients of childbearing potential must be using a reliable method of contraception and have a negative urine human chorionic gonadotropin (HCG) test at enrollment
- •Able to understand and comply with the requirements of the study
- •Subjects must be free of illicit drug use for the past 3 months
- •Subjects must have received methadone maintenance therapy for at least 3 months, and have been at least 2 weeks methadone-free
- •Good health, as assessed by medical history, physical examination and laboratory tests
排除标准
- •Pregnancy or lactation
- •Current diagnosis of any Axis I disorder other than GAD, substance dependence in remission, or nicotine dependence
- •Patients who, in the opinion of the investigator, pose an imminent risk of suicide or a danger to self or others
- •Known intolerance or lack of response to quetiapine fumarate, as judged by the investigator
- •Use of any of the following cytochrome P450 3A4 inhibitors in the 14 days preceding enrolment including but not limited to: ketoconazole, itraconazole, fluconazole, erythromycin, clarithromycin, troleandomycin, indinavir, nelfinavir, ritonavir, fluvoxamine and saquinavir
- •Use of any of the following cytochrome P450 inducers in the 14 days preceding enrollment including but not limited to: phenytoin, carbamazepine, barbiturates, rifampin, St. John's Wort, and glucocorticoids
- •Administration of a depot antipsychotic injection within one dosing interval (for the depot) before randomisation
- •Medical conditions that would affect absorption, distribution, metabolism, or excretion of study treatment
- •Unstable or inadequately treated medical illness (e.g. diabetes, angina pectoris, hypertension) as judged by the investigator
- •Involvement in the planning and conduct of the study
- •Previous enrollment or randomisation of treatment in the present study.
- •Participation in another drug trial within 4 weeks prior enrollment into this study or longer in accordance with local requirements
- •A patient with Diabetes Mellitus (DM) fulfilling one of the following criteria:
- •Unstable DM defined as enrollment glycosylated hemoglobin (HbA1c) >8.5%.
- •Admitted to hospital for treatment of DM or DM related illness in past 12 weeks.
- •Not under physician care for DM
- •Physician responsible for patient's DM care has not indicated that patient's DM is controlled.
- •Physician responsible for patient's DM care has not approved patient's participation in the study
- •Has not been on the same dose of oral hypoglycaemic drug(s) and/or diet for the 4 weeks prior to randomization. For thiazolidinediones (glitazones) this period should not be less than 8 weeks.
- •Taking insulin whose daily dose on one occasion in the past 4 weeks has been more than 10% above or below their mean dose in the preceding 4 weeks Note: If a diabetic patient meets one of these criteria, the patient is to be excluded even if the treating physician believes that the patient is stable and can participate in the study.
- •An absolute neutrophil count (ANC) of 1.5 x 109 per liter
- •Positive urine drug screening test for drugs of abuse
研究组 & 干预措施
Seroquel
干预措施: Quetiapine (Drug)
结局指标
主要结局
Hamilton Anxiety Scale at 16 Weeks
时间窗: 16 weeks
Hamilton anxiety scale -- a well known quantitative measure for assessment of anxiety
次要结局
- Beck Depression Inventory at 16 Weeks(16 weeks)
