Alzheimer DiseaseAMYPREDNCT04828122
Amyloid Prediction in Early Stage Alzheimer's Disease From Acoustic and Linguistic Patterns of Speech
An observational study of Alzheimer Disease and Preclinical Alzheimer's Disease, run by Novoic Limited at 4 sites in United Kingdom.
Trial 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… Read more about this study
- Who is it for?
- Ages 50 to 85 yearsHealthy volunteers can take part
- Conditions the study is for
- Alzheimer Disease, Preclinical Alzheimer's Disease, Prodromal Alzheimer's Disease
- How many people
- 141 participants
- Where
- 4 sitesUnited Kingdom
- Study dates
- 19 Nov 2020to 6 Aug 2021
- How long will I take part?
- 2 Weeks
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 50 to 85 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: All participants of the study are based in the UK.
Who may be able to join
- 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.
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- 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.
Who cannot join
- 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.
Trial locations and contacts
4 sites in 1 country.
United Kingdom4 sites
Re:Cognition Health
Birmingham, B16 8LT
Re:Cognition Health
Guildford, GU2 7YD
Re:Cognition Health
London, W1G 9JF
Re:Cognition Health
Plymouth, PL68BT
About this study
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
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).
- Conditions
- Alzheimer Disease, Preclinical Alzheimer's Disease, Prodromal Alzheimer's Disease, Alzheimer's Disease (Incl Subtypes), Mild Cognitive Impairment
- Keywords
- Alzheimer's disease, Preclinical Alzheimer's disease, Prodromal Alzheimer's disease, Mild Cognitive Impairment, Normal Cognition, Amyloid, Speech, Acoustic, Language, Linguistic, Machine Learning, Artificial Intelligence
- Medical subject headings
- Alzheimer Disease, Cognitive Dysfunction, Speech, Language
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Arm 1: MCI amyloid positive | 1. Meet the National Institute of Aging - Alzheimer's Association (NIA-AA) core clinical criteria (2011) for MCI due to Alzheimer's or Mild Alzheimer's Dementia 2. Positive amyloid PET or amyloid CSF status. 3. MMSE 23-30 (inclusive) | |
| Arm 2: MCI amyloid negative | 1. Non-AD Mild Cognitive Impairment (MCI) 2. Negative amyloid PET or amyloid CSF status. 3. MMSE 23-30 (inclusive) | |
| Arm 3: CN amyloid positive | 1. Absence of a diagnosis of cognitive disorder and/or subjectively reported cognitive decline 2. Positive amyloid PET or amyloid CSF status. 3. MMSE 26-30 (inclusive) | |
| Arm 4: CN amyloid negative | 1. Absence of a diagnosis of cognitive disorder and/or subjectively reported cognitive decline 2. Negative amyloid PET or amyloid CSF status. 3. MMSE 26-30 (inclusive) |
What is being measured
The primary outcome is the main question the study is designed to answer.
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.
Measured: baseline
Secondary outcomes (6)
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.
Measured: 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.
Measured: 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.
Measured: 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.
Measured: baseline
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).
Measured: 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.
Measured: baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Apr 2021
- Study start19 Nov 2020
- Primary completion6 Aug 2021
- Study completion6 Aug 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Alzheimer DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 141 participants (actual)
- Target duration
- 2 Weeks
Sponsor and investigators
- Lead sponsor
- Novoic Limited
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Emil Fristed, MSc, Principal investigator, Novoic Limited
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04828122
- Sponsor's protocol ID
- NOV-0100
- Acronym
- AMYPRED
- Status last verified
- Mar 2021
- First submitted
- 26 Mar 2021
- Last updated
- 5 Sep 2021
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 5 Sep 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- 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
- ClinicalTrials.gov ID
- NCT04828122
- Acronym / sponsor ID
- AMYPRED / NOV-0100
- Conditions
- Alzheimer Disease, Preclinical Alzheimer's Disease, Prodromal Alzheimer's Disease, Alzheimer's Disease (Incl Subtypes), Mild Cognitive Impairment
- Keywords
- Alzheimer's disease, Preclinical Alzheimer's disease, Prodromal Alzheimer's disease, Mild Cognitive Impairment, Normal Cognition, Amyloid, Speech, Acoustic
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 141 participants (actual)
- Lead sponsor
- Novoic LimitedIndustry (pharma, biotech, devices)
- Study start
- 19 Nov 2020 (actual)
- Primary completion
- 6 Aug 2021 (actual)
- Study completion
- 6 Aug 2021 (actual)
- First posted
- 1 Apr 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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 design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Target follow-up
- 2 Weeks
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Arm 1: MCI amyloid positive | – | –1. Meet the National Institute of Aging - Alzheimer's Association (NIA-AA) core clinical criteria (2011) for MCI due to Alzheimer's or Mild Alzheimer's Dementia 2. Positive amyloid PET or amyloid CSF status. 3. MMSE 23-30 (inclusive) |
| Arm 2: MCI amyloid negative | – | –1. Non-AD Mild Cognitive Impairment (MCI) 2. Negative amyloid PET or amyloid CSF status. 3. MMSE 23-30 (inclusive) |
| Arm 3: CN amyloid positive | – | –1. Absence of a diagnosis of cognitive disorder and/or subjectively reported cognitive decline 2. Positive amyloid PET or amyloid CSF status. 3. MMSE 26-30 (inclusive) |
| Arm 4: CN amyloid negative | – | –1. Absence of a diagnosis of cognitive disorder and/or subjectively reported cognitive decline 2. Negative amyloid PET or amyloid CSF status. 3. MMSE 26-30 (inclusive) |
Who may qualify
- Ages
- 50 to 85 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- All participants of the study are based in the UK.
Key inclusion criteria (14 listed)
- 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.
Key exclusion criteria (6 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
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
6 secondary outcomes
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
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
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
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
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
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
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Sep 2021.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Emil Fristed, MSc principal investigator
Novoic Limited
4 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Alzheimer Disease and Preclinical Alzheimer's Disease, run by Novoic Limited at 4 sites in United Kingdom.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 14 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 5 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 4 sites in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
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). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Sep 2021.