The use of a smartphone app to detect changes in health from voice recordings of people with cystic fibrosis

ISRCTN ISRCTN49949826
DOI https://doi.org/10.1186/ISRCTN49949826
IRAS number 289665
Secondary identifying numbers P02706, IRAS 289665
Submission date
05/05/2023
Registration date
15/08/2023
Last edited
19/12/2024
Recruitment status
No longer recruiting
Overall study status
Ongoing
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Sonde Health is a health technology company with a platform that provides voice-enabled health detection and monitoring capabilities for brain, respiratory and muscular impairment. Analysis of vocal biomarkers can give early insight into health and wellness. Sonde enables most companies and developers with Android or iOS mobile applications to integrate health condition detection and monitoring capabilities powered by voice.
Royal Papworth Hospital has demonstrated that daily recordings of a range of physiological parameters (e.g. spirometry, pulse oximetry, activity, heart rate, etc) in combination with self-reported survey responses (e.g. general wellness, cough, sleep quality) in people with cystic fibrosis (CF) holds promise to more accurately track fluctuations in health condition, in particular the start of pulmonary exacerbations. These data are collected remotely at the study participant’s home using remote/virtual online tools, as part of a larger effort to take a more virtual approach to clinics. Smartphone-based collection of voice samples for vocal biomarker analysis is a natural extension of this approach.
The aim of this study is to explore the potential of vocal biomarkers to assist in or improve the detection of health conditions in people with CF. The emphasis is on identifying the onset and progression of pulmonary exacerbations.

Who can participate?
Patients who are 18 years old or over who have a diagnosis of cystic fibrosis, are able to perform home monitoring and are already using the Project Breathe remote monitoring kit

What does the study involve?
Participants will be asked to do a daily voice recording of an 'ahhh' sound twice into an app downloaded onto a personal smartphone. They will also need to continue to use the Project Breathe home monitoring kit, which includes weighing scales, lung function spirometer, activity watch and recording self-reported measures of coughing and wellness. Participants will be enrolled for 1 year and it will have no impact on usual care.

What are the possible benefits of participating?
There are no potential immediate benefits to taking part but if the study proves successful it has the potential to improve the early diagnosis of pulmonary exacerbations at home. There are no known risks to taking part.

Where is the study run from?
Royal Papworth NHS Foundation Trust (UK)

When is the study starting and how long is it expected to run for?
January 2021 to December 2026

Who is funding the study?
1. Cystic Fibrosis Trust (UK)
2. LifeArc (UK)

Who is the main contact?
Prof. Andres Floto, arf27@cam.ac.uk

Contact information

Prof Andres Floto
Principal Investigator

Royal Papworth Hospital
Papworth Road
Cambridge
CB2 0AY
United Kingdom

ORCiD logoORCID ID 0000-0002-2188-5659
Phone +44 (0)1223 638000
Email arf27@cam.ac.uk
Mrs Lucy Gale
Public

Royal Papworth Hospital
Papworth Road
Cambridge
CB2 0AY
United Kingdom

ORCiD logoORCID ID 0000-0002-5697-810X
Phone +44 (0)1223638000
Email lucy.gale1@nhs.net
Mrs Lucy Gale
Scientific

Royal Papworth Hospital
Papworth Road
Cambridge
CB2 0AY
United Kingdom

Phone +44 (0)1223 638000
Email lucy.gale1@nhs.net

Study information

Study designSingle-centre observational prospective cohort study
Primary study designObservational
Secondary study designCohort study
Study setting(s)Home, Hospital
Study typeOther
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleVOICE-CF: Vocal Biomarker Analysis for Health Condition Detection in People with Cystic Fibrosis
Study acronymVOICE-CF
Study objectivesThe aim of this study is to explore the potential of vocal biomarkers to assist in or improve the detection of health conditions in people with cystic fibrosis. The emphasis is on identifying the onset and progression of pulmonary exacerbations and to evaluate whether daily respiratory symptom risk monitoring can assist the remote care of patients with cystic fibrosis.
Ethics approval(s)Approved 19/02/2021, North East - Newcastle & North Tyneside 1 Research Ethics Committee (NHSBT Newcastle Blood Donor Centre, Holland Drive, Newcastle upon Tyne, NE2 4NQ, UK; +44 (0)2071048285; newcastlenorthtyneside1.rec@hra.nhs.uk), ref: 21/NE/0013
Health condition(s) or problem(s) studiedCystic fibrosis
InterventionParticipants will complete two daily voice recordings on the Sonde app using a personal smartphone. Each daily voice sample will take approximately 1 minute to complete a 6-second held vowel “ahhh.” Participants will also continue with usual home monitoring such as weight, lung function, activity and self-reported measures as part of the Project Breathe study.
Intervention typeDevice
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Sonde smartphone app
Primary outcome measureThe accuracy of the Sonde predictive algorithm to predict when antibiotics will be required to treat an acute pulmonary exacerbation. This will be from the sensitivity and specificity of the predictive algorithm when compared to the Project Breathe predictive algorithm over a 12-month period.
Secondary outcome measuresThe accuracy of the Sonde predictive algorithm to substitute for spirometry and pulse oximetry. This will be from the sensitivity and specificity of the Sonde predictive algorithm when compared to spirometry and pulse oximetry over a 12-month period.
Overall study start date18/01/2021
Completion date31/12/2026

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants100 then interim analysis with option to increase to 300
Total final enrolment41
Key inclusion criteria1. Diagnosis of cystic fibrosis based on genetic testing and/or sweat chloride levels
2. Age between >/= 18 to </= 65 years of age at time of consent
3. Able to provide written informed consent
4. Patients who are currently undertaking home monitoring/virtual clinics
5. Patients who have the use of a smartphone
Key exclusion criteria1. Patients unable to provide written informed consent
2. Patients who are currently not undertaking home monitoring/virtual clinics
3. Lung transplant recipients
Date of first enrolment21/06/2021
Date of final enrolment25/02/2022

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Royal Papworth Hospital NHS Foundation Trust
Papworth Road
Cambridge Biomedical Campus
Cambridge
CB2 0AY
United Kingdom

Sponsor information

Royal Papworth NHS Foundation Trust
Hospital/treatment centre

Papworth Road
Cambridge
CB2 0AY
England
United Kingdom

Phone +44 (0)1223 638000
Email victoria.hughes1@nhs.net
Website https://royalpapworth.nhs.uk/research-and-development

Funders

Funder type

Charity

Cystic Fibrosis Trust
Private sector organisation / Other non-profit organizations
Alternative name(s)
Cystic Fibrosis, CF
Location
United Kingdom
LifeArc
Private sector organisation / Other non-profit organizations
Location
United Kingdom

Results and Publications

Intention to publish date31/12/2026
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal. Participants will be informed of the
results by newsletter.
IPD sharing planThe data-sharing plans for the current study are unknown and will be made available at a later date. The datasets generated and/or data analysed during the current study are not expected to be made available until the end of all of the home monitoring studies that are currently underway/planned by this group.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file version 3.0 19/03/2021 17/05/2023 No No
HRA research summary 20/09/2023 No No

Additional files

43601_PROTOCOL_V3.0_19Mar21.pdf

Editorial Notes

19/12/2024: The intention to publish date was changed from 31/12/2025 to 31/12/2026.
18/12/2024: The overall study end date was changed from 31/12/2024 to 31/12/2026.
19/01/2024: The following changes were made:
1. The overall study end date was changed from 01/12/2022 to 31/12/2024.
2. The intention to publish date was changed from 25/02/2024 to 31/12/2025.
20/09/2023: A link to the HRA research summary was added.
17/05/2023: Study's existence confirmed by the Royal Papworth NHS Foundation Trust.