rTMS 对甲基苯丙胺使用障碍的渴望
使用重复的跨磁刺激来解决甲基苯丙胺使用障碍中的目标渴望
The primary aim of this project is to use a randomized single-blind sham-controlled study to investigate if high frequency repetitive transmagnetic stimulation (HF-rTMS) can modulate cue-induced craving in adult methamphetamine (METH) users. The investigators hypothesize that HF-rTMS directed at left dorsolateral prefrontal cortex (DLPFC) will result in a reduction in craving for METH compared to sham-controlled rTMS in adults with methamphetamine use disorder (MUD) as evidenced by validated measures of METH craving. Neurobiologically, the investigators anticipate rTMS mediated stimulation of the DLPFC could result in inhibition of cue-induced craving through potential disruption of involved circuitry. The current project proposes that participants who are recently abstinent from METH will be randomized into four experimental groups to provide two rTMS conditions (real versus sham) and two picture cues conditions (METH versus neutral). The experiment will have an induction phase where each subject will receive 10 daily treatments within 2 weeks. Just before each rTMS/sham session participants will be shown visual cues (METH or neutral). Participants will then undergo a maintenance phase for an additional month with assessments to evaluate craving and relapse. Urine samples for urine drug screening (UDS) will be collected at screening day and on days 1, 5 and 10. Just before each rTMS/sham session participants will be shown visual cues (METH and neutral). VAS craving scores will be assessed before and after picture presentation and after the rTMS/sham session. Before the first and 10th treatment session, participants were evaluated by the the Stimulant Craving Questionnaire (STCQ) and the Severity of Dependence Scale (SDS) questionnaires. Participants will then undergo a maintenance phase for an additional month. During the first week of maintenance, three rTMS/sham sessions will be administered. During each of the following 3 weeks, one rTMS/sham session will be given per week. As with the induction phase, urine samples will be collected for screening and STCQ and the SDS questionnaires will be completed at each maintenance session. To evaluate the long-term effects of the rTMS treatment, the investigators plan on contacting participants 6 months after treatment termination for all subjects who completed the 10 treatment sessions. During that phone conversation, craving and relapse will again be assessed.
研究概览
地位
地位
条件
条件
干预/治疗
干预/治疗
研究类型
研究类型
注册 (估计的)
注册
阶段
阶段
- 不适用
联系人和位置
学习联系方式
学习联系方式
- 姓名:Brandon J Cornejo, MD, PhD
- 电话号码:503-721-7964
- 邮箱:brandon.cornejo@va.gov
研究联系人备份
- 姓名:Holly McCready
- 电话号码:503-721-7964
学习地点
-
-
Oregon
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Portland、Oregon、美国、97239
- 招聘中
- Veterans Affairs Portland Health Care System
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接触:
- Holly McCready
- 电话号码:503-721-7964
-
接触:
- Brandon J Cornejo, MD, PhD
- 电话号码:503-721-7964
-
首席研究员:
- Brandon J Cornejo, MD, PhD
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-
参与标准
资格标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Subjects must use at least 0.5 g per day at least 5 days per week and have a minimum 12-month history of METH abuse.
- Subjects must meet DSM V diagnosis for methamphetamine use disorder.
- Subjects must have a minimum 4-week period of detoxification and a desire to stop using methamphetamine.
Exclusion Criteria:
- Present or past history of neurological disorder
- The present history of a DSM IV Axis I or DSM V primary psychiatric disease (apart from MUD and depressive symptoms defined as a Hamilton Depression Scale Score < 7 ("normal"))
- Scores on the Hamilton Depression Scale > 8, possibly indicating clinical depression
- No current abuse of drugs other than methamphetamine (except nicotine). Urine-screening tests for psychoactive drugs will be performed to corroborate the lack of drug use.
- Individuals meeting criteria for cannabis use disorder or alcohol use disorder
- Medical illness that can affect brain function
- Past or present history of cardiovascular disease or high blood pressure
- Any history of epilepsy or a known history of seizure disorder
- A history of metal in the head or chest area (except dental fillings or braces)
- Current consumption of psychiatric medication
- Any other medical, neurological or neurosurgical condition that would preclude the administration of repetitive transmagnetic stimulation
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:三倍
手臂数量
武器和干预
参与者组/臂参与者组/臂 |
干预/治疗干预/治疗 |
|---|---|
|
实验性的:Treatment rTMS + meth pictures
Participants in this group will receive real repetitive transcranial magnetic stimulation treatments. Before each rTMS session they will be exposed to a series of methamphetamine-related pictures to evaluate response to methamphetamine visual cues while receiving real rTMS treatments. This group will be referred to as real METH (RM). |
A real magnet will be used during rTMS treatments, which will look identical to the sham magnet. The participants and treatment facilitator will be blinded to which magnet will be used. High frequency repetitive transmagnetic stimulation (rTMS) will be directed at left dorsolateral prefrontal cortex (DLPFC) during 10 daily treatments within two weeks then 6 more treatments during the following month.
其他名称:
Just before each rTMS session, participants will be shown methamphetamine-related pictures |
|
有源比较器:Treatment rTMS + neutral pictures
Participants in this group will receive real repetitive transcranial magnetic stimulation treatments. Before each rTMS session they will be exposed to a series of neutral pictures to evaluate response to neutral visual cues while receiving real rTMS treatments. This group will be referred to as real neutral (RN). |
A real magnet will be used during rTMS treatments, which will look identical to the sham magnet. The participants and treatment facilitator will be blinded to which magnet will be used. High frequency repetitive transmagnetic stimulation (rTMS) will be directed at left dorsolateral prefrontal cortex (DLPFC) during 10 daily treatments within two weeks then 6 more treatments during the following month.
其他名称:
Just before each rTMS session, participants will be shown neutral pictures |
|
假比较器:Sham rTMS + meth pictures
Participants in this group will receive sham repetitive transcranial magnetic stimulation treatments. Before each rTMS session they will be exposed to a series of methamphetamine-related pictures to evaluate response to methamphetamine visual cues while receiving sham rTMS treatments. This group will be referred to as sham METH (SM). |
Just before each rTMS session, participants will be shown methamphetamine-related pictures A sham magnet will be used during rTMS treatments, which will look identical to the real magnet. The participants and treatment facilitator will be blinded to which magnet will be used. The sham rTMS treatments will be directed at left dorsolateral prefrontal cortex (DLPFC) during 10 daily treatments within two weeks then 6 more treatments during the following month. |
|
假比较器:Sham rTMS + neutral pictures
Participants in this group will receive sham repetitive transcranial magnetic stimulation treatments. Before each rTMS session they will be exposed to a series of neutral pictures to evaluate response to neutral visual cues while receiving sham rTMS treatments. This group will be referred to as sham neutral (SN). |
Just before each rTMS session, participants will be shown neutral pictures A sham magnet will be used during rTMS treatments, which will look identical to the real magnet. The participants and treatment facilitator will be blinded to which magnet will be used. The sham rTMS treatments will be directed at left dorsolateral prefrontal cortex (DLPFC) during 10 daily treatments within two weeks then 6 more treatments during the following month. |
研究衡量的是什么?
主要结果指标
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Effect of rTMS directed at left DLPFC on craving for methamphetamine as assessed by the Severity of Dependence Scale.
大体时间:6 weeks
|
The Severity of Dependence Scale (SDS) is a 5-item questionnaire that provides a score indicating the severity of dependence on methamphetamine. Each of the five items is scored on a 4-point scale (0-3). The total score is obtained through the addition of the 5-item ratings and will range from 0 to 15. The higher the score the higher the level of dependence. Pre and post differences in craving will be assessed. |
6 weeks
|
|
Effect of rTMS directed at left DLPFC on craving for methamphetamine as assessed by a Visual Analog Scale (VAS).
大体时间:6 weeks
|
The visual analogue scale (VAS) is a fixed-length horizontal line on which the participant draws a line between the two anchors of "no cravings at all" and "most intense craving imaginable". The distance between the "no cravings at all" anchor and the participants line is measured and reported as a value between 0 and 100. The higher the value, the more intense the participants cravings are. Pre and post differences in craving will be assessed. |
6 weeks
|
|
Effect of rTMS directed at left DLPFC on craving for methamphetamine as assessed by the Stimulant Craving Questionnaire (STCQ).
大体时间:6 weeks
|
The Stimulant Craving Questionnaire-Brief (STCQ) is a 10-item self-report measure that assesses current craving for methamphetamine, using a seven-point scale, with answers ranging from 0 ("strongly disagree") to 6 ("strongly agree"). A composite score is generated for each participant by averaging the responses over all 10 questions. The scores can range from 0 to 6. The higher the composite score, the stronger the current craving. Pre and post differences in craving will be assessed. |
6 weeks
|
次要结果测量
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Effect of craving for methamphetamine on relapse status after rTMS directed at left DLPFC.
大体时间:5 months
|
Relapse will be determined by self-report and/or positive urine drug screens. |
5 months
|
|
Effect of cue type (methamphetamine versus neutral) on methamphetamine craving after rTMS treatment.
大体时间:6 weeks
|
A composite craving score will be generated by adding each of the three craving measure scores (Severity of Dependence, Visual Analog Scale, and Stimulant Craving Questionnaire) for each participant who received real rTMS treatments. The composite score can range from 0 to 121, where 0 indicates no cravings for methamphetamine and 121 is the strongest possible cravings for methamphetamine. Pre and post differences in craving will be compared between participants who were exposed to methamphetamine cues before each session and those who were exposed to neutral cues. |
6 weeks
|
合作者和调查者
研究记录日期
研究主要日期
学习开始 (实际的)
学习开始
初级完成 (估计的)
初级完成
研究完成 (估计的)
研究完成
研究注册日期
首次提交
首次提交
首先提交符合 QC 标准的
首先提交符合 QC 标准的
首次发布 (实际的)
首次发布
研究记录更新
最后更新发布 (实际的)
最后更新发布
上次提交的符合 QC 标准的更新
上次提交的符合 QC 标准的更新
最后验证
最后验证
更多信息
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