NCT03644043

Brief Summary

The Evidence Amyloid Study EEG (EASE) establishes an open-label, longitudinal cohort study to measure of neurological functioning during the onset and progression of cognitive decline in preclinical Alzheimer's patients using quantitative electroencephalography (qEEG) measures (P300, P50, and reaction time). Participants will be scanned using the ElectroCap (FDA Class II) and/or the WAVi headset with the WAVi EEG P300/P50 system, along with the structured clinical interviews and assessments for baseline screening or mild cognitive impairment which are standard of care.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
2,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2018

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 20, 2018

Completed
25 days until next milestone

First Submitted

Initial submission to the registry

August 14, 2018

Completed
9 days until next milestone

First Posted

Study publicly available on registry

August 23, 2018

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 15, 2020

Completed
15 days until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2020

Completed
Last Updated

August 23, 2018

Status Verified

August 1, 2018

Enrollment Period

2.3 years

First QC Date

August 14, 2018

Last Update Submit

August 22, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • Patient meeting Appropriate Use Criteria (AUC) with EEG brain scan - P300 and P50 will be measured for correlation between P300 and P50 with amyloid deposition.

    Test whether qEEG P300 and P50 waveform amplitudes and auditory response times will lead to correlation with amyloid deposition

    10 days

Study Arms (1)

Early stage of MCI symptoms

Subjects with cognitive decline representing MCI symptomology and with previous PET amyloid-beta (Aβ) imaging results.

Device: EEG scan

Interventions

EEG scanDEVICE

WAVi EEG and evoked potential platform. Participants will be scanned using the ElectroCap (FDA Class II) and/or the WAVi Headset with the WAVi Co EEG P300 system, along with the structured clinical interviews and assessments for the various ailments or baseline screenings

Early stage of MCI symptoms

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Participants must be referred by qualified dementia specialists for EEG brain scan.

You may qualify if:

  • and older;
  • Medicare beneficiary;
  • Diagnosis of MCI or dementia, according to DSM-IV and/or National Institutes of Aging-Alzheimer's Association criteria, verified by a dementia specialist within 24 months (American Psychiatric Association. 2000; McKhann et al. 2011; Albert et al. 2011);
  • Cognitive complaint verified by objectively confirmed cognitive impairment;

You may not qualify if:

  • Head MRI and/or CT within 24 months prior to enrollment;
  • Normal cognition or subjective complaints that are not verified by cognitive testing.
  • Knowledge of amyloid status, in the opinion of the referring dementia expert, may cause significant psychological harm or otherwise negatively impact the patient or family.
  • Scan being ordered for nonmedical purposes (e.g., legal, insurance coverage, or employment screening).
  • Cancer requiring active therapy (excluding non-melanoma skin cancer);
  • Life expectancy less than 24 months based on medical co-morbidities;
  • Residence in a skilled nursing facility.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Translational Cognitive Research

Houston, Texas, 77036, United States

RECRUITING

Related Publications (22)

  • Smailovic U, Koenig T, Kareholt I, Andersson T, Kramberger MG, Winblad B, Jelic V. Quantitative EEG power and synchronization correlate with Alzheimer's disease CSF biomarkers. Neurobiol Aging. 2018 Mar;63:88-95. doi: 10.1016/j.neurobiolaging.2017.11.005. Epub 2017 Nov 16.

    PMID: 29245058BACKGROUND
  • Kramberger MG, Kareholt I, Andersson T, Winblad B, Eriksdotter M, Jelic V. Association between EEG abnormalities and CSF biomarkers in a memory clinic cohort. Dement Geriatr Cogn Disord. 2013;36(5-6):319-28. doi: 10.1159/000351677. Epub 2013 Sep 10.

    PMID: 24022277BACKGROUND
  • Stomrud E, Hansson O, Minthon L, Blennow K, Rosen I, Londos E. Slowing of EEG correlates with CSF biomarkers and reduced cognitive speed in elderly with normal cognition over 4 years. Neurobiol Aging. 2010 Feb;31(2):215-23. doi: 10.1016/j.neurobiolaging.2008.03.025.

    PMID: 18462837BACKGROUND
  • Michel CM. Electrical Neuroimaging. Cambridge University Press, Cambridge 2009.

    BACKGROUND
  • Freire FR, Coelho F, Lacerda JR, da Silva MF, Goncalves VT, Machado S, Velasques B, Ribeiro P, Basile LFH, Oliveira AMP, Paiva WS, Kanda PAM, Anghinah R. Cognitive rehabilitation following traumatic brain injury. Dement Neuropsychol. 2011 Jan-Mar;5(1):17-25. doi: 10.1590/S1980-57642011DN05010004.

    PMID: 29213715BACKGROUND
  • 1. Cassani R, Falk TH, Fraga FJ, Cecchi M, Moore DK, Anghinah R. Towards automated electroencephalography-based Alzheimer's disease diagnosis using portable low-density devices. Biomedical Signal Processing and Control. 2017,33:261-71.

    BACKGROUND
  • Pratap-Chand R, Sinniah M, Salem FA. Cognitive evoked potential (P300): a metric for cerebral concussion. Acta Neurol Scand. 1988 Sep;78(3):185-9. doi: 10.1111/j.1600-0404.1988.tb03643.x.

    PMID: 3227804BACKGROUND
  • Olichney JM, Yang JC, Taylor J, Kutas M. Cognitive event-related potentials: biomarkers of synaptic dysfunction across the stages of Alzheimer's disease. J Alzheimers Dis. 2011;26 Suppl 3(0 3):215-28. doi: 10.3233/JAD-2011-0047.

    PMID: 21971462BACKGROUND
  • Cecchi M, Moore DK, Sadowsky CH, Solomon PR, Doraiswamy PM, Smith CD, Jicha GA, Budson AE, Arnold SE, Fadem KC. A clinical trial to validate event-related potential markers of Alzheimer's disease in outpatient settings. Alzheimers Dement (Amst). 2015 Oct 2;1(4):387-94. doi: 10.1016/j.dadm.2015.08.004. eCollection 2015 Dec.

    PMID: 27239520BACKGROUND
  • van Dinteren R, Arns M, Jongsma ML, Kessels RP. P300 development across the lifespan: a systematic review and meta-analysis. PLoS One. 2014 Feb 13;9(2):e87347. doi: 10.1371/journal.pone.0087347. eCollection 2014.

    PMID: 24551055BACKGROUND
  • Polich J, Corey-Bloom J. Alzheimer's disease and P300: review and evaluation of task and modality. Curr Alzheimer Res. 2005 Dec;2(5):515-25. doi: 10.2174/156720505774932214.

    PMID: 16375655BACKGROUND
  • Polich J, Ladish C, Bloom FE. P300 assessment of early Alzheimer's disease. Electroencephalogr Clin Neurophysiol. 1990 May-Jun;77(3):179-89. doi: 10.1016/0168-5597(90)90036-d.

    PMID: 1691970BACKGROUND
  • Frodl T, Hampel H, Juckel G, Burger K, Padberg F, Engel RR, Moller HJ, Hegerl U. Value of event-related P300 subcomponents in the clinical diagnosis of mild cognitive impairment and Alzheimer's Disease. Psychophysiology. 2002 Mar;39(2):175-81. doi: 10.1017/S0048577202010260.

    PMID: 12212666BACKGROUND
  • Bennys K, Portet F, Touchon J, Rondouin G. Diagnostic value of event-related evoked potentials N200 and P300 subcomponents in early diagnosis of Alzheimer's disease and mild cognitive impairment. J Clin Neurophysiol. 2007 Oct;24(5):405-12. doi: 10.1097/WNP.0b013e31815068d5.

    PMID: 17912065BACKGROUND
  • Papaliagkas VT, Anogianakis G, Tsolaki MN, Koliakos G, Kimiskidis VK. Combination of P300 and CSF beta-amyloid(1-42) assays may provide a potential tool in the early diagnosis of Alzheimer's disease. Curr Alzheimer Res. 2010 Jun;7(4):295-9. doi: 10.2174/156720510791162421.

    PMID: 19939224BACKGROUND
  • Korzyukov O, Pflieger ME, Wagner M, Bowyer SM, Rosburg T, Sundaresan K, Elger CE, Boutros NN. Generators of the intracranial P50 response in auditory sensory gating. Neuroimage. 2007 Apr 1;35(2):814-26. doi: 10.1016/j.neuroimage.2006.12.011. Epub 2006 Dec 19.

    PMID: 17293126BACKGROUND
  • Golob EJ, Johnson JK, Starr A. Auditory event-related potentials during target detection are abnormal in mild cognitive impairment. Clin Neurophysiol. 2002 Jan;113(1):151-61. doi: 10.1016/s1388-2457(01)00713-1.

    PMID: 11801437BACKGROUND
  • Green DL, Payne L, Polikar R, Moberg PJ, Wolk DA, Kounios J. P50: A candidate ERP biomarker of prodromal Alzheimer's disease. Brain Res. 2015 Oct 22;1624:390-397. doi: 10.1016/j.brainres.2015.07.054. Epub 2015 Aug 6.

    PMID: 26256251BACKGROUND
  • Boutros NN, Belger A. Midlatency evoked potentials attenuation and augmentation reflect different aspects of sensory gating. Biol Psychiatry. 1999 Apr 1;45(7):917-22. doi: 10.1016/s0006-3223(98)00253-4.

    PMID: 10202580BACKGROUND
  • Amenedo E, Diaz F. Ageing-related changes in the processing of attended and unattended standard stimuli. Neuroreport. 1999 Aug 2;10(11):2383-8. doi: 10.1097/00001756-199908020-00030.

    PMID: 10439468BACKGROUND
  • Azumi T, Nakashima K, Takahashi K. Aging effects on auditory middle latency responses. Electromyogr Clin Neurophysiol. 1995 Nov;35(7):397-401.

    PMID: 8549430BACKGROUND
  • Hubl D, Kleinlogel H, Frolich L, Weinandi T, Maurer K, Holstein W, Czekalla J, Dierks T. Multilead quantitative electroencephalogram profile and cognitive evoked potentials (P300) in healthy subjects after a single dose of olanzapine. Psychopharmacology (Berl). 2001 Nov;158(3):281-8. doi: 10.1007/s002130100861.

    PMID: 11713618BACKGROUND

MeSH Terms

Conditions

Alzheimer DiseaseCognitive Dysfunction

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental DisordersCognition Disorders

Central Study Contacts

Dewey Brown II, PhD

CONTACT

Kenneth O Russell

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
24 Months
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 14, 2018

First Posted

August 23, 2018

Study Start

July 20, 2018

Primary Completion

November 15, 2020

Study Completion

November 30, 2020

Last Updated

August 23, 2018

Record last verified: 2018-08

Locations