The Effects of Repetitive Transcranial Magnetic Stimulation in Older Adults With Mild Cognitive Impairment - Randomized Controlled Study
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 60
- 试验地点
- 2
- 主要终点
- Comparison of efficiency of rTMS active and sham-placebo stimulation Change from baseline to END of stimulation regarded as reduction of symptoms of cognitive disorders measured by DemTect test.
研究概览
简要总结
The study is planned as a randomized, double-blind, and sham-controlled parallel trial, in which raters and participants will be blinded to the group selection. A total of 60 participants, meeting the eligibility criteria, will be enrolled in the study and divided randomly into 3 groups (2 experimental ones with active rTMS, one of which with the addition of cognitive training RehaCom, one control group with sham-placebo rTMS).
详细描述
The study is planned as a randomized, double-blind, and sham-controlled parallel trial, in which raters and participants will be blinded to the group selection. A total of 60 participants, meeting the eligibility criteria, will be enrolled in the study and divided randomly into 3 groups (2 experimental ones with active rTMS, with and without the addition of cognitive training RehaCom, one control group with sham-placebo rTMS).
Experimental group 1 (E1, n=20): patients undergoing rTMS and computerized cognitive training Experimental group 2 (E2, n=20) patients undergoing TMS without training of cognitive function Control group (CG, n=20) - patients with placebo TMS - sham coil without cognitive training
The following stimulation protocol will be used to conduct research into the treatment of mild cognitive impairment.
The target area in rTMS is the dorsolateral prefrontal cortex of the left hemisphere of the brain, mostly responsible for operational memory, memory of everyday events, information processing and learning. Delivering rTMS protocol is characterized by two thousand pulses at 10 Hz, 5-s train duration, and 25-seconds intervals at 110% of motor threshold five times a week for two weeks. The following protocol has been chosen based on reports from the article by Hellen Livia Drumond et at. (2015). In this study the research group has demonstrated that after 10 sessions of active TMS (two thousand pulses at 10 Hz, 5-s train duration, and 25-seconds intervals at 110% of motor threshold five times a week for two weeks) crucial for MCI cognitive domains such as episodic memory and logical memory.
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
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 55 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Detailed inclusion Criteria:
- •participants of both sexes with MCI
- •informed consent to undergo rTMS and study protocol
- •Screening procedure of cognitive deficits:
- •confirmation of the diagnosis of MCI according to Petersen's criteria (concern related to the change in cognitive performance, deterioration in one or more cognitive areas, maintaining the independent ability of daily functioning, lack of dementia)
- •confirmation of the diagnosis of MCI based on the results obtained in neuropsychological tests (MoCA, Montreal Cognitive Assessment test and CDR, Clinical Dementia Rate)
排除标准
- •(TMS and fMRI)
- •Contraindications to treatments using TMS:
- •positive history of epileptic seizures or a positive family history of epilepsy
- •magnetic or ferromagnetic implants, both electronic (e.g., heart/brain stimulators) as well as mechanical (eg bone anastomoses) within the head and neck
- •previous stroke or head injury with identified neurological deficits
- •increased intracranial pressure or a positive history of increased intracranial pressure
- •pregnant women and women during lactation
- •Contraindications to MR examinations:
- •claustrophobia
- •magnetic or ferromagnetic implants, both electronic (e.g., cardiac/brain stimulators) as well as mechanical (eg bone anastomoses) within the head and neck
- •other psychiatric disorders (i.e. depression, anxiety disorders), which may affect cognitive performance (GDS-15, 15-Item Geriatric Depression Scale; HAMA-14, 14-Item Hamilton Anxiety Scale)
- •occurrence of significant pathologies in the cerebrum area (tumors, hydrocephalus, strokes)
- •lack of patient's informed consent
- •documented persistent lack of cooperation in treatment
结局指标
主要结局
Comparison of efficiency of rTMS active and sham-placebo stimulation Change from baseline to END of stimulation regarded as reduction of symptoms of cognitive disorders measured by DemTect test.
时间窗: END of stimulation
Comparison of efficiency of rTMS active and rTMS sham placebo stimulation from baseline to end of stimulation measured by DemTect scale. DemTect is a screening test for MCI and early stages of dementia, especially sensitive to memory deficits. The whole test consists of 5 subscales: (1) a word list, (2) number transcoding, (3) supermarket (semantic fluency), (4) digit span reverse and (5) word list delayed recall.
Comparison of efficiency of rTMS active and rTMS sham placebo stimulation from baseline to end of stimulation measured by neuroimaging parameters derived from volumetry, DTI and rs fMRI.
时间窗: END of stimulation
Comparison of efficiency of rTMS active and rTMS sham placebo stimulation from baseline to end of stimulation measured by neuroimaging parameters derived from volumetry, DTI and rs fMRI. Brain MRI will be performed with a 3 Tesla (Ingenia, Philips Best) scanner using standard anatomical sequences include the following high resolution sequences: 3D T1-weighted, 3D-T2-weighted, 3D Flair and post gadolinium 3DT1-weighted imaging followed by new advanced techniques such as brain volumetry, DTI and rs-fMRI. All participants will undergo brain standard MR imaging using a 32-channel coil dedicated for head examination before and after rTMS.
Comparison of efficiency of rTMS active and sham-placebo stimulation Change from baseline to END of stimulation regarded as reduction of symptoms of cognitive disorders measured by FAS test
时间窗: END of stimulation
Comparison of efficiency of rTMS active and rTMS sham placebo stimulation from baseline to end of stimulation measured by verbal fluency FAS test. Verbal fluency is measured by requesting an individual to orally produce as many words as possible that begin with the letters F, A, and S within a prescribed time frame (1 minute in the research).
Comparison of efficiency of rTMS active and sham-placebo stimulation Change from baseline to END of stimulation regarded as reduction of symptoms of cognitive disorders measured by CANTAB test
时间窗: END of stimulation
Comparison of efficiency of rTMS active and rTMS sham placebo stimulation from baseline to end of stimulation measured with The Cambridge Neuropsychological Test Automated Battery (CANTAB). The CANTAB includes highly sensitive, precise and objective measures of cognitive function, correlated to neural networks with demonstrated sensitivity to detecting changes in neuropsychological performance. The battery includes tests of working memory, learning and executive function; visual, verbal and episodic memory; attention, information processing and reaction time; social and emotion recognition, decision making and response control.Cognitive performance testing using selected CANTAB will examine: attention (Reaction Time test), visual memory (Paired Association Learning, Pattern Recognition Memory), executive functions and operating memory (Spatial Working Memory).
次要结局
- Comparison of efficiency of rTMS active and sham-placebo stimulation Change from baseline to END of stimulation regarded as reduction of symptoms of apathy measured by AES scale.(END of stimulation)