- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04828122
Amyloid Prediction in Early Stage Alzheimer's Disease From Acoustic and Linguistic Patterns of Speech (AMYPRED)
September 3, 2021 updated by: Novoic Limited
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
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).
Study Overview
Status
Completed
Study Type
Observational
Enrollment (Actual)
141
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Birmingham, United Kingdom, B16 8LT
- RE:Cognition Health
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Guildford, United Kingdom, GU2 7YD
- RE:Cognition Health
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London, United Kingdom, W1G 9JF
- RE:Cognition Health
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Plymouth, United Kingdom, PL68BT
- RE:Cognition Health
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
50 years to 85 years (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
All participants of the study are based in the UK.
Description
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 Alzheimer's disease.
- 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 7 or above; or iOS 11 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 has access 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; AND 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 Generalised Anxiety Disorder (GAD).
- Diagnosis of Major Depressive Disorder (MDD).
- 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.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
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Arm 1: MCI amyloid positive
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Arm 2: MCI amyloid negative
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Arm 3: CN amyloid positive
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Arm 4: CN amyloid negative
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The area under the curve (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 using speech recordings as input.
Time Frame: baseline
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baseline
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The agreement between the PACC5 composite and the corresponding regression model predicting it in all four Arms, as measured by the coefficient of individual agreement (CIA).
Time Frame: baseline
|
baseline
|
The sensitivity, specificity and Cohen's kappa of the binary classifier distinguishing between amyloid positive (Arms 1 and 3) and amyloid negative (Arms 2 and 4) Arms.
Time Frame: baseline
|
baseline
|
The AUC, sensitivity, specificity and Cohen's kappa of the binary classifier distinguishing between amyloid positive cognitively normal (CN) (Arm 3) and amyloid negative cognitively normal (CN) (Arm 4) Arms.
Time Frame: baseline
|
baseline
|
The AUC, sensitivity, specificity and Cohen's kappa of the binary classifier distinguishing between amyloid positive MCI (Arm 1) and amyloid negative MCI (Arm 2) Arms.
Time Frame: baseline
|
baseline
|
The AUC, sensitivity, specificity and Cohen's kappa of the binary classifier distinguishing between the MCI (Arms 1 and 2) and the CN (Arms 3 and 4) Arms.
Time Frame: baseline
|
baseline
|
For each classifier/regressor in outcome 1-6, the correlation between the AUC/CIA and each age group, gender and speech-to-reverberation modulation energy ratio group, as measured by the Kendall rank correlation coefficient.
Time Frame: baseline
|
baseline
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Emil Fristed, MSc, Novoic Limited
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
November 19, 2020
Primary Completion (Actual)
August 6, 2021
Study Completion (Actual)
August 6, 2021
Study Registration Dates
First Submitted
March 26, 2021
First Submitted That Met QC Criteria
March 30, 2021
First Posted (Actual)
April 1, 2021
Study Record Updates
Last Update Posted (Actual)
September 5, 2021
Last Update Submitted That Met QC Criteria
September 3, 2021
Last Verified
March 1, 2021
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- NOV-0100
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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