40赫兹无创光疗系统效果研究
ALZLIGHT Stage III - 40赫兹无创光疗系统效果研究
研究概览
详细说明
最近对阿尔茨海默病 (AD) 小鼠模型的研究表明,每天暴露于 40 Hz 频闪光疗法一小时,可减缓疾病进展并产生多种神经保护作用,例如认知和记忆恢复,甚至清除 tau 蛋白和 Aβ 蛋白种类。 因此,40 Hz 频闪光疗法在治疗人类方面具有相当大的潜力。
这项研究将通过改变白光的光谱成分来利用一种新颖的掩蔽光方式,使闪烁对良心感知不可见,同时仍会在大脑中引起 40 Hz 的振荡。
在这项研究中,62 名可能患有轻度至中度 AD 的患者每天将通过光疗系统 (LTS)(主动设置)暴露于不可见光谱闪烁光或连续非闪烁白光(假设置)1 小时。 假设置是一种高质量的假干预,因为受试者将对设置视而不见,两者都显示为白光。
每个参与者的研究将持续 8.5 个月,包括 3 个阶段:1 个月的登记期、6 个月的干预期和 1.5 个月的干预后随访期。
为了测试 LTS 干预是否是 AD 的潜在治疗方法,将在基线和随访时通过神经心理学测试来测量认知。 为了更好地了解潜在影响,将测试基于 MRI、MRS、EEG 和血液样本的功效标记。
这项研究的结果将增加对伽马振荡对人脑影响的理解,以及如何将其用作治疗神经退行性疾病的新型重要工具。
研究类型
注册 (估计的)
阶段
- 不适用
联系人和位置
学习联系方式
- 姓名:Peter Høgh, MD, Phd
- 电话号码:47322809
- 邮箱:phh@regionsjaelland.dk
研究联系人备份
- 姓名:Maibritt Horning, MSc
- 电话号码:+45 81949649
- 邮箱:maibho@regionsjaelland.dk
学习地点
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Roskilde、丹麦、4000
- 招聘中
- Zealand University Hospital
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接触:
- Peter Høgh, MD, Phd
- 电话号码:47322809
- 邮箱:phh@regionsjaelland.dk
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接触:
- Maibritt Horning, MSc
- 电话号码:+4581949649
- 邮箱:maibho@regionsjaelland.dk
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首席研究员:
- Peter Høgh, MD, Phd
-
副研究员:
- Maibritt Horning, MSc
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副研究员:
- Mikkel Pejstrup Agger, MD
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
描述
纳入标准:
- 成年主管人员,能够理解研究的性质并给出书面知情同意书。
- 根据 NIA-AA 诊断标准,被诊断为可能患有轻度至中度 AD。
- 年龄 > 55 岁。 女性必须绝经后。
- 丹麦语流利。
- > 8年师范学校教育
- 通过色盲测试(石原颜色测试)
- 具有视觉和听觉能力,以及神经心理学测试所需的语言能力。
- 参与者必须有指定的看护人,该看护人可以为参与者提供必要的帮助,帮助他们在家中使用 LTS 设备和 Actigraph 可穿戴设备,并协助进行临床访问和其他实际问题
排除标准:
- 严重视力障碍(视力 > 0.5)可根据需要配戴眼镜进行矫正
- 与大脑重要部位相关的显着异常,例如视觉系统、前额叶皮层或海马体,或预审成像检测到的相关病变。
- 与视觉系统或大脑相关的重大疾病的既往史。
- 药物治疗:不包括使用任何抗癫痫药物、神经调节药物或高剂量镇静剂。
- 过去 2 年内有药物滥用史。
- 任何可能导致难以遵守协议的重大全身性疾病或不稳定的医疗状况(由 PI 自行决定)
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
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的:积极的
连续几天每天暴露于设置为 40 Hz 不可见光谱闪烁的 LTS 设备 1 小时
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连续几天每天暴露 1 小时
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假比较器:假
连续几天每天暴露于 LTS 设备设置为连续颜色匹配的白光 1 小时
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连续几天每天暴露 1 小时
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Gamma oscillations assessment
大体时间:Change from Baseline to 6 months
|
Determine the total gamma power at 40 Hz, with no concomitant LTS device stimulation, assess changes in the gamma power at 40 Hz.
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Change from Baseline to 6 months
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Induction of 40 Hz Gamma oscillations
大体时间:Change from Baseline to 6 months
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Estimate the change in electrical field patterns by EEG SSVEP, assess the difference between placebo and treatment for power spectral density signal to noise ratio at baseline measured by EEG SSVEP
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Change from Baseline to 6 months
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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可行性评估
大体时间:基线至 6 个月
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调查参与者是否可以满足每天坐在 LTS 设备前 1 小时的要求。 LTS 干预的可行性将通过每天正确使用设备的时间量(以分钟为单位)以及通过合规性/可行性问卷(对参与者自我报告的使用情况和对LTS 设备)。 单位:每天使用分钟数 |
基线至 6 个月
|
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合规评估
大体时间:基线至 6 个月
|
通过问卷调查(结构化访谈)调查 LTS 干预的耐受性,该问卷由违反协议的总数衡量,即在干预期间不遵守每天一小时的光刺激,并根据合规性/可行性问卷进行定性评估(关于参与者自我报告的 LTS 设备使用情况和感知的结构化访谈)。 单位:违反协议的总次数 |
基线至 6 个月
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Cognition and memory assessment
大体时间:Change from Baseline to 6 months and 12 months
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Assess changes in cognition measured by the Alzheimer's Disease Assessment Scale -Cognitive Subscale plus Executive Functioning and Functional Ability (ADAS Cog plus EF & FA).
The score ranges from 0 to 135.
A higher score reflects greater cognitive impairment.
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Change from Baseline to 6 months and 12 months
|
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Cognition and memory assessment
大体时间:Change from Baseline to 6 months and 12 months
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Assess changes in cognition measured by the Alzheimer's Disease Cooperative Study - Activities of Daily Living Inventory (ADCS-ADL).
The score ranges from 0 to 78.
A higher score reflects a better outcome.
|
Change from Baseline to 6 months and 12 months
|
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Cognition and memory assessment
大体时间:Change from Baseline to 6 months and 12 months
|
Assess changes in cognition measured by the Montreal Cognitive Assessment (MoCA).
The score ranges from 0 to 30.
A higher score reflects a better outcome.
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Change from Baseline to 6 months and 12 months
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Connectivity measures
大体时间:Change from Baseline to 6 months
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rs-fMRI Connectivity: Estimate the temporal correlation between cortical regions, assess changes in correlation between cortical regions from baseline to 6 months
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Change from Baseline to 6 months
|
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Connectivity measures
大体时间:Change from Baseline to 6 months
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EEG Connectivity: Estimate the temporal correlation between cortical regions, assess changes in correlation between cortical regions from baseline to 6 months
|
Change from Baseline to 6 months
|
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MR Spectroscopy
大体时间:Change from Baseline to 6 months
|
MR Spectroscopy biomarkers: Assess changes from baseline to 6 months
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Change from Baseline to 6 months
|
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Sleep Quality
大体时间:Change from Baseline to 6 months
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Assess changes from baseline to 6 months of total sleep time in minutes, measured by actigraphy data and self-reported sleeping patterns (self-reported sleep quality scores based on patient's subjective report alone are often inaccurate). Unit: total sleep time in minutes |
Change from Baseline to 6 months
|
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Sleep Quality
大体时间:Change from Baseline to 6 months
|
Assess changes from baseline to 6 months of wakefulness after sleep onset, measured in minutes of wakefulness after a patient has fallen asleep based on actigraphy data. Unit: total time of wakefulness in minutes |
Change from Baseline to 6 months
|
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Biomarkers of Alzheimer's Disease
大体时间:Change from Baseline to 6 months
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Assess changes in biomarkers of Alzheimer's Disease in blood sampled from the participants from baseline to 6 months.
Markers of AD will be measured via ultrasensitive assays using fluid-based biomarkers such as plasma levels associated with amyloid pathology (plasma Aβ42/40 ratio), tau (plasma P-tau181 and P-tau231), neurodegeneration (plasma neurofilament light), and astrocytic function (glial fibrillary acidic protein).
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Change from Baseline to 6 months
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Safety Assessment
大体时间:12 months
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Estimate the safety of the LTS therapy, assess device- and procedure-related adverse events (DR/PR-AEs) including serious AEs (SAEs) occuring at any time during the trial
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12 months
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MRI Atrophy assessment
大体时间:Change from Baseline to 6 months
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Assess changes from baseline to 6 months of global atrophy (ventricular volume and hippocampal volume) using advanced MR techniques on structural MRI data, i.e., including but not limited to voxel-based analysis.
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Change from Baseline to 6 months
|
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MRI perfusion assessment
大体时间:Change from Baseline to 6 months
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Assess MRI perfusion: Changes from baseline to 6 months.
|
Change from Baseline to 6 months
|
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EEG: Spectral feature assessment
大体时间:Change from Baseline to 6 months
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Assess spectral features via rs-EEG Fourier power.
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Change from Baseline to 6 months
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合作者和调查者
调查人员
- 学习椅:Maibritt Horning, MSc、Zealand University Hospital, Department of Neurology
- 学习椅:Mikkel Pejstrup Agger, MD、Zealand Univeristy Hospital, Department of Neurology
- 首席研究员:Peter Høgh, MD, Phd、Zealand Univeristy Hospital, Department of Neurology
出版物和有用的链接
一般刊物
- Kasteleijn-Nolst Trenite D, Rubboli G, Hirsch E, Martins da Silva A, Seri S, Wilkins A, Parra J, Covanis A, Elia M, Capovilla G, Stephani U, Harding G. Methodology of photic stimulation revisited: updated European algorithm for visual stimulation in the EEG laboratory. Epilepsia. 2012 Jan;53(1):16-24. doi: 10.1111/j.1528-1167.2011.03319.x. Epub 2011 Nov 16.
- Adaikkan C, Middleton SJ, Marco A, Pao PC, Mathys H, Kim DN, Gao F, Young JZ, Suk HJ, Boyden ES, McHugh TJ, Tsai LH. Gamma Entrainment Binds Higher-Order Brain Regions and Offers Neuroprotection. Neuron. 2019 Jun 5;102(5):929-943.e8. doi: 10.1016/j.neuron.2019.04.011. Epub 2019 May 7.
- Martorell AJ, Paulson AL, Suk HJ, Abdurrob F, Drummond GT, Guan W, Young JZ, Kim DN, Kritskiy O, Barker SJ, Mangena V, Prince SM, Brown EN, Chung K, Boyden ES, Singer AC, Tsai LH. Multi-sensory Gamma Stimulation Ameliorates Alzheimer's-Associated Pathology and Improves Cognition. Cell. 2019 Apr 4;177(2):256-271.e22. doi: 10.1016/j.cell.2019.02.014. Epub 2019 Mar 14.
- Adaikkan C, Tsai LH. Gamma Entrainment: Impact on Neurocircuits, Glia, and Therapeutic Opportunities. Trends Neurosci. 2020 Jan;43(1):24-41. doi: 10.1016/j.tins.2019.11.001. Epub 2019 Dec 10.
- Herrmann CS. Human EEG responses to 1-100 Hz flicker: resonance phenomena in visual cortex and their potential correlation to cognitive phenomena. Exp Brain Res. 2001 Apr;137(3-4):346-53. doi: 10.1007/s002210100682.
- Alawode DOT, Heslegrave AJ, Ashton NJ, Karikari TK, Simren J, Montoliu-Gaya L, Pannee J, O Connor A, Weston PSJ, Lantero-Rodriguez J, Keshavan A, Snellman A, Gobom J, Paterson RW, Schott JM, Blennow K, Fox NC, Zetterberg H. Transitioning from cerebrospinal fluid to blood tests to facilitate diagnosis and disease monitoring in Alzheimer's disease. J Intern Med. 2021 Sep;290(3):583-601. doi: 10.1111/joim.13332. Epub 2021 Jun 26.
- Benedet AL, Mila-Aloma M, Vrillon A, Ashton NJ, Pascoal TA, Lussier F, Karikari TK, Hourregue C, Cognat E, Dumurgier J, Stevenson J, Rahmouni N, Pallen V, Poltronetti NM, Salvado G, Shekari M, Operto G, Gispert JD, Minguillon C, Fauria K, Kollmorgen G, Suridjan I, Zimmer ER, Zetterberg H, Molinuevo JL, Paquet C, Rosa-Neto P, Blennow K, Suarez-Calvet M; Translational Biomarkers in Aging and Dementia (TRIAD) study, Alzheimer's and Families (ALFA) study, and BioCogBank Paris Lariboisiere cohort. Differences Between Plasma and Cerebrospinal Fluid Glial Fibrillary Acidic Protein Levels Across the Alzheimer Disease Continuum. JAMA Neurol. 2021 Dec 1;78(12):1471-1483. doi: 10.1001/jamaneurol.2021.3671.
- Iaccarino HF, Singer AC, Martorell AJ, Rudenko A, Gao F, Gillingham TZ, Mathys H, Seo J, Kritskiy O, Abdurrob F, Adaikkan C, Canter RG, Rueda R, Brown EN, Boyden ES, Tsai LH. Gamma frequency entrainment attenuates amyloid load and modifies microglia. Nature. 2016 Dec 7;540(7632):230-235. doi: 10.1038/nature20587.
- Agger MP, Horning M, Carstensen MS, Danielsen ER, Baandrup AO, Nguyen M, Hogh P, Miskowiak K, Petersen PM, Madsen KH, Kjaer TW. Study on the effect of 40 Hz non-invasive light therapy system. A protocol for a randomized, double-blinded, placebo-controlled clinical trial. Front Aging Neurosci. 2023 Oct 12;15:1250626. doi: 10.3389/fnagi.2023.1250626. eCollection 2023.
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (估计的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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