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NCT04928976 | COMPLETED | Alzheimer Disease

Amyloid Prediction in Early Stage Alzheimer's Disease Through Speech Phenotyping
Sponsor:

Novoic Limited

Brief Summary:

The primary objective of the study is to evaluate whether a set of algorithms analysing acoustic and linguistic patterns of speech can detect amyloid-specific cognitive impairment in early stage Alzheimer's disease, as measured by the AUC of the receiver operating characteristic (ROC) curve of the binary classifier distinguishing between amyloid positive (Arms 1 and 3) and amyloid negative (Arms 2 and 4) Arms. Secondary objectives include (1) evaluating whether similar algorithms can detect amyloid-specific cognitive impairment in the cognitively normal (CN) and MCI Arms respectively, as measured on binary classifier performance; (2) whether they can detect MCI, as measured on binary classifier performance (AUC, sensitivity, specificity, Cohen's kappa), and the agreement between the PACC5 composite and the corresponding regression model predicting it in all Arms pooled (Wilcoxon signed-rank test, CIA); (3) evaluating variables that can impact performance of such algorithms of covariates from the speaker (age, gender, education level) and environment (measures of acoustic quality).

Condition or disease

Alzheimer Disease

Preclinical Alzheimer's Disease

Prodromal Alzheimer's Disease

Alzheimer's Disease (Incl Subtypes)

Mild Cognitive Impairment

Study Type : OBSERVATIONAL
Estimated Enrollment : 67 participants
Official Title : A Study to Evaluate the Ability of Speech- and Language-based Digital Biomarkers to Detect and Characterise Prodromal and Preclinical Alzheimer's Disease in a Clinical Setting
Actual Study Start Date : 2021-01-22
Estimated Primary Completion Date : 2021-07-30
Estimated Study Completion Date : 2021-07-30

Information not available for Arms and Intervention/treatment

Ages Eligible for Study: 50 Years to 85 Years
Sexes Eligible for Study: ALL
Accepts Healthy Volunteers: 1
Criteria
Inclusion Criteria
  • * Amyloid status must be known, based on an amyloid PET scan or CSF amyloid test, no older than 30 months at the time of consent for Arm 2 and Arm 4 participants (amyloid negative Arms).
  • * Amyloid status must be known, based on an amyloid PET scan or CSF amyloid test, no older than 60 months at the time of consent for Arm 1 and Arm 3 (amyloid positive Arms).
  • * Subjects must be aged 50-85 (inclusive).
  • * Subjects must have MMSE scores of 23-30 (inclusive) based on a test not older than 1 month at the time of the visit.
  • * Date of diagnosis (if applicable) maximum of five years prior to consent.
  • * Subjects' first language must be English.
  • * Willing to participate in a study investigating speech and dementia.
  • * Availability of a person ('caregiver') who in the investigator's judgment has frequent and sufficient in-person contact with the participant, and is able to provide accurate information regarding the participant's cognitive and functional abilities. This is most likely met when living with a caregiver.
  • * Able to provide valid informed consent.
  • * Able to use, or has a caregiver who is able to use a smartphone device.
  • * Has access to a smartphone device running an operation system of Android 6 or above; or iOS 10 or above.
  • If taking part in the study through virtual visits, the following inclusion criteria also applies
    • * Able to use, or has a caregiver who is able to use a personal computer, notebook or tablet.
    • * Has access to a personal computing device of that is:
    • * Running an operating system of macOS X with macOS 10.9 or later; or Windows 7 or above; or Ubuntu 12.04 or higher; or
    • * Have access to one of following internet browser software Internet Explorer version 11 or above; or Microsoft Edge version 12 or above; or Firefox version 27 or above; or Google Chrome version 30 or above; or Safari version 7 or above; capable of audio and video recording; and able to connect to the internet.
    Exclusion Criteria
    • * Clinically significant unstable psychiatric illness in 6 months.
    • * Diagnosis of General Anxiety Disorder.
    • * Current, or history within the past 2 years of major depressive disorder diagnosis (according to DSM-5 criteria); or psychiatric symptoms that, in the opinion of the investigator, could interfere with study procedures.
    • * History or presence of stroke within the past 2 years.
    • * Documented history of transient ischemic attack or unexplained loss of consciousness within the last 12 months.
    • * The participant is using drugs to treat symptoms related to AD, and the doses of these drugs were not stable for at least 8 weeks prior to consent.
Amyloid Prediction in Early Stage Alzheimer's Disease Through Speech Phenotyping

Location Details

NCT04928976

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How to Participate

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Locations

Not yet recruiting

United States, California

Syrentis Clinical Research

Santa Anna, California, United States, 92705