Home monitoring for acutely unwell patients being managed at home as part of a virual ward care pathway: a feasibility study

ISRCTN ISRCTN11298549
DOI https://doi.org/10.1186/ISRCTN11298549
IRAS number 325766
Secondary identifying numbers IRAS 325766
Submission date
20/11/2023
Registration date
12/02/2024
Last edited
27/01/2025
Recruitment status
No longer recruiting
Overall study status
Ongoing
Condition category
Signs and Symptoms
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
The Oxford University Hospital (OUH) acute hospital-at-home service cares for patients in their own homes. The VIABLE study will use vital-sign monitoring devices that automatically transmit patient measurements to the hospital. Here, the measurements can be reviewed by the responsible clinicians via a digital dashboard. The VIABLE study will check that data collected via the monitoring system is efficient and accurate. The study will assess whether blood pressure monitoring and thermometer use (which can be difficult for patients to manage by themselves) are feasible in this potentially frail and elderly cohort. The study will also confirm that all the equipment is not intrusive and is easy to use. Clinical staff will be invited to contribute to the refinement of the clinical dashboard to ensure it is helpful for remotely evaluating the patient’s status and is easy to use. This feasibility study will inform the design of a future trial of the monitoring system. This trial will test whether monitoring using the remote system reduces the number of home visits required, improves the scheduling of home visits when they are needed, and reduces the need for further hospital assessments when compared to current care protocols.

Who can participate?
Patients with an acute illness (such as breathlessness or an acute infection) aged 18 years old and over

What does the study involve?
The VIABLE feasibility study will look at 35 patients using the remote vital sign monitoring platform whilst admitted to the acute hospital-at-home service. This will include a pulse oximeter to measure blood oxygen levels and a vital-sign chest patch that will measure pulse and breathing rate. Each patient will also be provided with a blood pressure monitor and a thermometer. Patients taking part in the study will have an acute illness (such as breathlessness or an acute infection) and will have been assigned ongoing care via the virtual ward. Participants will be asked to complete a short interview about their experiences at the end of their study period. They will also be asked to provide permission to link their study data to selected data from the OUH data warehouse.

What are the possible benefits and risks of participating?
Participating patients may benefit from the increased monitoring as their caring clinicians may be more aware of their condition and response to treatments due to the monitoring data being presented on the digital clinicians' dashboard. This could lead to an improved quality of care and more efficient and informed visits from their healthcare professionals over the course of their time on the virtual ward. As usual care will continue for all participants the risks of participating are minimal. There is the possibility of some discomfort caused by the blood pressure monitor when taking readings or of minor skin irritation by the vital-sign chest patch.

Where is the study run from?
The University of Oxford (UK)

When is the study starting and how long is it expected to run for?
May 2023 to September 2025

Who is funding the study?
NIHR Oxford Biomedical Research Centre (UK)

Who is the main contact?
Prof Andrew Farmer, andrew.farmer@phc.ox.ac.uk (UK)

Study website

Contact information

Prof Andrew Farmer
Public, Scientific, Principal Investigator

Gibson Building
1st Floor
Radcliffe Observatory Quarter
Woodstock Road
Oxford
OX2 6GG
United Kingdom

ORCiD logoORCID ID 0000-0002-6170-4402
Phone +44 (0)1865 617942
Email andrew.farmer@phc.ox.ac.uk

Study information

Study designNon-interventional feasibility study
Primary study designObservational
Secondary study designCase series
Study setting(s)Home, Hospital
Study typeOther
Participant information sheet Patient information material can be found at: https://www.phc.ox.ac.uk/research/DLTC/studies/viable
Scientific titleRemote monitoring in virtual wards for acutely unwell patients being managed and treated on an ambulatory care pathway: feasibility study
Study acronymVIABLE
Study objectivesIt is feasible to remotely monitor NHS virtual ward patients in their own home.
Ethics approval(s)

Approved 10/07/2023, London - Camden & Kings Cross Research Ethics Committee (2 Redman Place, Stratford, London, E20 1JQ, United Kingdom; +44 (0)2071048086; CamdenandKingsCross.REC@hra.nhs.uk), ref: 23/LO/0559

Health condition(s) or problem(s) studiedAcutely unwell patients receiving care from the Oxford University Hospital (OUH) acute hospital-at-home services
InterventionParticipants will be provided with the VIABLE monitoring system which consists of an adhesive chest patch that will collect vital signs data (e.g. heart rate), and a pulse oximeter; both devices relay data continuously to a tablet computer that transfers data to a clinician's dashboard. Participants will also be provided with a blood pressure monitor and an in-ear thermometer and will be asked to take regular measurements with these devices and record these in a participant diary.
Intervention typeOther
Primary outcome measureFeasibility of continuous remote vital-sign monitoring measured using data coverage (data received remotely on each day of virtual ward care) including reliable heart rate in any 4-hour sliding window and reliable blood oxygen level (SpO2) received in any 12-hour sliding window over the monitoring period.
Secondary outcome measures1. To test the acceptability of remote vital-sign monitoring participants will be asked to complete a Technology Assessment Questionnaire 1 - 4 weeks after the end of monitoring
2. To determine the feasibility of intermittent blood pressure and temperature monitoring, the proportion of individuals able to place monitors, activate measurements and then provide data during the monitoring period will be analysed.
3. Collect clinical data using the VIABLE system over the course of the monitoring period to determine the optimal combination of vital sign data and frequency of review required to monitor acute virtual ward patients remotely.
4. Collect clinical data using the VIABLE system over the course of the monitoring period to refine threshold limits for safety, changes in clinical treatment and prioritisation for review as presented on the clinical dashboard.
5. Collect clinical data from the Oxford University Hospital (OUH) Clinical Data Warehouse approximately 6 months after the end of the monitoring period to develop clinically appropriate outcome measures for further evaluation.
6. Collect clinical data from the OUH Clinical Data Warehouse approximately 6 months after the end of the monitoring period to link to vital-sign data to demonstrate the feasibility of data linkage for refining clinical prediction rules.
Overall study start date01/05/2023
Completion date01/09/2025

Eligibility

Participant type(s)Patient
Age groupMixed
Lower age limit18 Years
SexBoth
Target number of participants35
Total final enrolment29
Key inclusion criteria1. The AAU clinical team has determined it is clinically appropriate to manage the patient at home and the patient will be admitted to the Hospital at Home virtual ward
2. Acutely ill (a deterioration in health that has taken place over days or weeks) and assessed as requiring diagnostic tests and treatments including the following interventions (oxygen, fluids, diuretics, intravenous antibiotics) that can be delivered at home.
3. Assessed as having at least one of the following diagnoses (multiple acute problems may present together):
3.1. Lowerrespiratorytractinfection
3.2. Cellulitis
3.3. Urinary tract infection
3.4. Systemic evidence of acute infection but unclear primary source of infection
3.5. Acute Kidney Injury due to dehydration, infection, medication, or heart failure
3.6. Heart failure with acute fluid overload
4. Willing and able to go home with a skin contact vital-sign monitoring system (chest patch)
5. Resides within the area served by an acute hospital at-home service
6. Participant is EITHER:
6.1. Willing and able to give informed consent for participation in the study, OR
6.2. Favourable consultee advice is provided for those lacking capacity
7. Male or Female aged 18 years or above
Key exclusion criteria1. The research team is not satisfied that remote monitoring can be safely established in the patient’s home
2. Pregnancy
3. Unable to comply with the study procedures
4. The mobile phone network at the patient’s residence is unsuitable for safe and effective monitoring
Date of first enrolment05/12/2023
Date of final enrolment03/11/2024

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Oxford University Hospitals
John Radcliffe Hospital
Headley Way
Headington
Oxford
OX3 9DU
United Kingdom

Sponsor information

University of Oxford
University/education

Research Governance, Ethics and Assurance Joint Research Office
Boundary Brook House
Churchill Drive
Headington
Oxford
OX3 7GB
England
United Kingdom

Phone None provided
Email RGEA.Sponsor@admin.ox.ac.uk
Website https://www.ox.ac.uk/
ROR logo "ROR" https://ror.org/052gg0110

Funders

Funder type

Research organisation

NIHR Oxford Biomedical Research Centre
Private sector organisation / Research institutes and centers
Alternative name(s)
NIHR Biomedical Research Centre, Oxford, OxBRC
Location
United Kingdom

Results and Publications

Intention to publish date01/12/2025
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPlanned publication in a relevant peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the VIABLE study are not expected to be made available due to this being a small feasibility study with a small patient cohort.

Editorial Notes

27/01/2025: The following changes were made to the study record:
1. The overall study end date was changed from 01/01/2025 to 01/09/2025.
2. The intention to publish date was changed from 01/03/2025 to 01/12/2025.
07/11/2024: Total final enrolment added.
15/10/2024: The following changes were made:
1. The recruitment end date was changed from 18/10/2024 to 03/11/2024.
2. The intention to publish date was changed from 30/11/2024 to 01/03/2025.
05/07/2024: The recruitment end date was changed from 17/09/2024 to 18/10/2024.
03/07/2024: The following changes were made:
1. The condition was changed from "Acutely unwell patients from the Oxford University Hospital (OUH) Ambulatory Assessment Unit referred to the OUH Acute Hospital at Home virtual ward" to "Acutely unwell patients receiving care from the Oxford University Hospital (OUH) acute hospital-at-home services".
2. As of 02/07/2024, recruitment recommenced.
3. The recruitment end date was changed from 17/05/2024 to 17/09/2024.
05/03/2024: The following changes were made to the study record:
1. Ethics approval details added.
2. The recruitment start date was changed from 30/11/2023 to 05/12/2023.
3. The recruitment end date was changed from 02/03/2024 to 17/05/2024.
4. The overall study end date was changed from 31/08/2024 to 01/01/2025.
5. As of 23/02/2024, study recruitment has been temporarily suspended (due to very low recruitment rates). An amendment to widen recruitment options and extend the recruitment period is currently being reviewed by the sponsor. Once this has been approved by the relevant bodies recruitment will recommence.
21/11/2023: Study's existence confirmed by the London - Camden & Kings Cross Research Ethics Committee (HRA) (UK).