Transcranial Direct Current Stimulation (tDCS) to Reduce Craving in Cocaine Addiction
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 25
- 试验地点
- 2
- 主要终点
- Change in Cocaine Craving from Baseline (Obsessive-Compulsive Cocaine Scale score)
研究概览
简要总结
Transcranial direct current stimulation (tDCS) is a form of non-invasive brain stimulation in which low level electrical currents are applied to the scalp in order to alter brain function. In the present study, tDCS will be administered with the goal of assessing the tolerability and feasibility of this approach to 1) reduce an individual's level of drug craving and 2) provide evidence to support the use of this device by the patient for future unsupervised stimulation in a non-clinical setting.
Research Questions:
- Can tDCS be used successfully to train cocaine addicted individuals for self-administration purposes?
- Can active tDCS be used to decrease drug craving in individuals with cocaine use disorders?
- Does active tDCS outperform sham tDCS in reducing drug craving?
详细描述
The ultimate goal of this project is to develop a portable neuromodulatory intervention to reduce craving in cocaine addiction. This proposed project is in response to NIH/NIDA's solicitation titled "Development of Portable Neuromodulatory Device for the Treatment of Substance Use Disorders (SUDs)." The present study aims to evaluate the tolerability and feasibility of repeated administration of tDCS to reduce drug craving in individuals with cocaine addiction, with the aim of using these data to support a phase II study and, ultimately, support of approval of usage of this device without clinical supervision.
The specific objectives are:
- Establish the feasibility and safety of using tDCS to reduce self-reported cravings in individuals addicted to cocaine.
- Train cocaine addicted individuals to self-administer tDCS (under supervision) to test the feasibility of future home self-administration in this population.
Substance use disorders present a treatment challenge for clinicians, as well as a socioeconomic burden on individuals and society at large. Cocaine use disorder occurs when someone experiences clinically significant impairment caused by the recurrent use of cocaine, including health problems, physical withdrawal with discontinuation of use, persistent/escalating use, and failure to meet major personal, occupational, or educational responsibilities. At present, no FDA approved medicines are available to treat cocaine dependence, and behavioral therapy may be used to treat this addiction, though with limited efficacy. Drug craving (strong obsessions about and/or irresistible urges or compulsions to consume a drug) is a central driving force for perpetuation of substance use and subsequent addiction, as well as relapse after abstinence. Currently, no treatments exist that are targeted at reducing drug craving, which is intrusive and distressing to patients. The prefrontal cortex (PFC) plays an important role inhibiting these intrusive cravings. However, decades of data have shown that PFC activity is impaired in addictions. In this study, our goal is to increase PFC activity with non-invasive neuromodulation. Given the role of the PFC in the processing and regulation of craving behavior, this brain region is a key target for brain stimulation.
This study will recruit individuals with a diagnosis of cocaine use disorder (per DSM-5 criteria) who are receiving treatment for their substance use disorder at Samaritan Daytop Village (SDV) and other similar treatment facilities (e.g., Phoenix House, Mount Sinai's network of hospitals and clinics). Patients will be randomly assigned to receive either active or sham (placebo) tDCS. Participants will receive 20 minutes of stimulation per tDCS day, three days per week for five weeks.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Device Feasibility
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •DSM-5 diagnosis of cocaine use disorder
- •Ability to understand the risks/benefits of the study, provide informed consent and perform tasks as per protocol
- •English speaking
- •For females of childbearing capacity, current use of a medically acceptable form of birth control
排除标准
- •Current or past history of a major neurological disorder (e.g. mental retardation, Parkinson's disease, Lewy body disease, Huntington's disease, MS, ALS, stroke, delirium tremens) or seizures, including those symptoms associated with periods of cocaine withdrawal or abstinence
- •History of Axis I disorder, other than substance use disorder, that is associated with psychotic symptoms (e.g. schizophrenia) or neurodevelopmental disorder (e.g., autism)
- •Use of medications (current or in the past 6 months) with known CNS effects or which may alter cerebral function, except psychotropics for depression/anxiety/PTSD (e.g. SSRIs)
- •Clinically significant unstable medical illness or infection (e.g. HIV, hepatitis, etc.)
- •Presence of contraindicated metallic implants or devices which may be impacted by electrical stimulation (e.g. cardiac pacemaker/defibrillator, medication pump, cochlear implant, implanted brain stimulator)
- •Head trauma with loss of consciousness for more than 30 minutes
- •Pregnancy or breast feeding
研究组 & 干预措施
Active tDCS
Active Transcranial Direct Current Stimulation (tDCS), Soterix Medical mini-CT tDCS stimulator
干预措施: Soterix Medical mini-CT tDCS stimulator (Device)
Sham tDCS
Sham (Placebo) Transcranial Direct Current Stimulation (tDCS), Soterix Medical mini-CT tDCS stimulator
干预措施: Soterix Medical mini-CT tDCS stimulator (Device)
结局指标
主要结局
Change in Cocaine Craving from Baseline (Obsessive-Compulsive Cocaine Scale score)
时间窗: Baseline (pre-tDCS), post-tDCS sessions (approx. week 6), Follow-up (every three months for up to 1 year)
Craving for cocaine will be assessed with a brief scale composed of 5 items (1, 2, 4, 5, and 13) from the Obsessive-Compulsive Cocaine Scale (OCCS; Vorspan et al., 2012).
次要结局
- Change in Anxiety symptoms from Baseline (HAM-A score)(Baseline (pre-tDCS), post-tDCS sessions (approx. week 6), Follow-up (every three months for up to 1 year))
- Change in Quality of Life from Baseline (WHOQOL-BREF score)(Baseline (pre-tDCS), post-tDCS sessions (approx. week 6), Follow-up (every three months for up to 1 year))
- Change in Depression symptoms from Baseline (Ham-D score)(Baseline (pre-tDCS), post-tDCS sessions (approx. week 6), Follow-up (every three months for up to 1 year))