NCT03446833终止不适用
Local Field Potential (LFP) Beta Adaptive Deep Brain Stimulation (aDBS) Feasibility Study
适应症
干预措施
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 1
- 试验地点
- 4
- 主要终点
- Operational Performance: Stimulation amplitude and LFP signals
研究概览
简要总结
The purpose of this study is to use local field potentials as control signals for adjusting DBS stimulation settings under varying patient states and to assess patient outcomes.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Device Feasibility
- 盲法
- None
入排标准
- 年龄范围
- 22 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Preoperative:
- •Subject has the ability to understand and provide written informed consent for participation in the study prior to the study-related procedures being conducted
- •Subject with levodopa-responsive PD of at least 4 years' duration, with symptoms not adequately controlled with medication, including individuals with motor complications of recent onset (from 4 months to 3 years) or with motor complications of longer-standing duration, and who are eligible for bilateral STN DBS surgery
- •Subject is ≥ 22 years of age at time of informed consent
- •Subject is a male or non-pregnant female. If female of child-bearing potential, and if sexually active, must be using, or agree to use, a medically-acceptable method of birth control as confirmed by the investigator
- •Subject has documented improvement in motor signs ON versus OFF dopaminergic medication, with a change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III score of > 30% OFF to ON medication
- •Based on the opinion of the Neurosurgeon, the subject is an acceptable candidate for implant of a DBS System that includes: bilateral DBS leads targeted to the STN, extensions, and neurostimulator
- •Subject can read and understand English
- •Subject is willing and able to attend all study-required visits and complete the study procedures
- •Subject is willing and able to be awake during left and right DBS lead implant surgery and for intraoperative LFP recordings
- •Intraoperative:
- •Required beta band (13 - 30 Hz) signal detected on left and right DBS leads
- •Exclusion Criteria
- •Subject has tremor dominant PD ≥ 2 at rest in head, upper, or lower extremities as measured on the UPDRS Part III Question 20
- •Subject requires diathermy, transcranial magnetic stimulation (TMS), or electroconvulsive therapy (ECT)
- •Subject has a history of prior intracranial surgery (eg, DBS, lesioning, previous surgical ablation)
- •Subject is unable to undergo Magnetic Resonance Imaging (MRI) of the head for planning the surgical DBS lead implants
- •Based on the opinion of the Neurosurgeon, the subject has a clinically significant structural abnormality(ies) of the brain that would jeopardize subject safety during the DBS lead implant, conduct of the study, or confound the subject's assessments
- •Subject has a metallic implant in the head, (eg, aneurysm clip, cochlear implant)
- •Subject has a major comorbidity increasing the risk of surgery (eg, prior stroke, severe diabetes, severe hypertension, immunocompromised, seizure disorder, active infection, need for chronic anticoagulation other than aspirin)
- •Subject has a neurocognitive impairment which exceeds the criteria for PD mild cognitive impairment (PD-MCI) as determined from the center's clinical neuropsychological evaluation prior to DBS for PD
- •Subject has, or plans to obtain, an implanted electrical stimulation medical device anywhere in the body (eg, cardiac pacemaker, defibrillator, spinal cord stimulator)
- •Subject has, or plans to obtain, an implanted medication pump (eg, DUOPATM infusion pump) and/or portable infusion pump
- •Based on the opinion of the investigator, the subject has an abnormal neurological examination that would preclude them from study participation
- •Subject is breast feeding
- •Subject has Mattis Dementia Rating Scale-2 (DRS-2) score ≤ 130
- •Subject has Beck Depression Inventory II (BDI-II) > 25
- •Subject is currently participating, or plans to participate, in another investigational study unless written approval is provided by the Medtronic study team
排除标准
- 未提供
研究组 & 干预措施
All Subjects
Experimental
Subjects who meet the intraoperative criteria will receive The LFP Beta aDBS System.
干预措施: The LFP Beta aDBS System (Device)
结局指标
主要结局
Operational Performance: Stimulation amplitude and LFP signals
时间窗: Approximately 6 months post implant
To characterize the stimulation amplitude and LFP signals during execution of the Medtronic LFP -based aDBS adaptive algorithm. Descriptive statistics will be reported across different PD medication states and subject activities.
次要结局
- Acute Clinical Effect: speech(Approximately 6 months post implant)
- Acute Clinical Effect: dyskinesia(Approximately 6 months post implant)
- Acute Clinical Effect: motor examination(Approximately 6 months post implant)
研究者
研究点 (4)
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