LungSpy - Identifying lung disease by using novel imaging techniques

ISRCTN ISRCTN10996089
DOI https://doi.org/10.1186/ISRCTN10996089
IRAS number 278327
Secondary identifying numbers AC18083, IRAS 278327
Submission date
08/03/2022
Registration date
11/04/2022
Last edited
24/03/2025
Recruitment status
No longer recruiting
Overall study status
Ongoing
Condition category
Respiratory
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
When trying to identify lung diseases the current methods used only provide a snapshot of what is occurring in the lung. By using new technologies we hope to be able to characterise what is happening deep in the lung in order to provide new ways of diagnosing and treating lung disease. In the LungSpy study we hope to be able to develop and test novel technologies to be able to characterise disease deep in the lung. The technology includes tiny cameras that can reach far into the lung and can also deliver small volumes of fluid, called Smartprobes, which light up when they come into contact with cells that signify lung disease. Our imaging systems attach to the camera to allow these images to be viewed.

Who can participate?
We aim to recruit up to 80 participants with a variety of lung conditions. Participants must be aged over 16, have capacity to provide informed consent, deemed suitable for bronchoscopy and study procedures by attending consultant (including consideration of routine medical interventions) and they must be undergoing a clinically indicated bronchoscopy or agree to undergo a research only bronchoscopy for the purpose of the study.

What does the study involve?
Eligibility screening involves a chest x-ray, a cardio respiratory examination and baseline clinical observations including, pulse, blood pressure, temperature and oxygen saturations.

The bronchoscope will be navigated into the lungs and a camera will be passed down the bronchoscope to the areas of interest. Small amounts of Smartprobes (less than a teaspoon of fluid) passed down a thin tube beside the camera into the lungs. Images of the lungs will be captured by the camera onto the video equipment (imaging system) The imaging and fluid delivery may be repeated in different areas of the lungs . As part of the bronchoscopy, the clinical team and the research team may need to collect some fluid samples from the lungs - this is called a bronchoalveolar lavage or BAL for short. It involves flushing some saline through the bronchoscope and collecting a fluid sample.

After the procedure, routine clinical observations will be recorded and participants may require a chest x-ray before being discharged home. 24 hours after the procedure, a member of the research team may contact the participant to check how they are.

What are the potential benefits and risks of participating?
We are testing these new imaging technologies to see if they can help clinicians distinguish between healthy and diseased lung tissue. The information we gain from this study will help us improve our understanding of lung disease and inform future development of the systems.

This is the first time that the imaging fibre (camera) has been used in humans. It has been tested extensively in the laboratory to image lung cancer, infection and inflammation. The imaging fibre comes into direct contact with the lung, therefore prior to being tested in humans, it has undergone rigorous safety testing to ensure that the materials used will not cause any harm. The imaging fibre will only be operated by a qualified member of the research team.

The imaging systems (video equipment) will not come into direct contact with the participant. There are two possible systems that can be utilised during the study. This is the first time one of the systems has been used in humans. The other system has been tested in two previous human research studies. Both systems have undergone all the required testing to ensure they are safe for use and will only be operated by qualified members of the research team.

We do not anticipate any adverse reactions to the Smartprobes that may be used in this study - only a very small amount of the Smartprobe will be used (also known as a microdose) and we have conducted extensive toxicology studies to demonstrate their safety for use in humans. Two out of the three Smartprobes have already been tested in humans and no side effects were experienced. If, however, an unexpected reaction was to occur, all of the necessary treatments are available in the hospital.

The risks of bronchoscopy are very low, with complications occurring in less than 1-2% of procedures. The main risk is air becoming trapped next to the lung which may require a chest drain. This is extremely rare. In addition, people can commonly experience cough, fever and sore throats within 24 hours following bronchoscopy.

Participants may have two chest x-rays (one before and one after the bronchoscopy). These procedures use ionising radiation to form images of your body and provide your doctor with clinical information. Ionising radiation can cause cell damage that may, after many years or decades, turn cancerous. We are all at risk of developing cancer during our lifetime. The normal risk is that this will happen to about 50% of people at some point in their life. Taking part in this study will add only a very small chance of this happening. The radiation exposure associated with these two additional x-rays is equivalent to approximately 7 days natural background radiation in the UK.

Where is the study run from?
The study is being run from the Royal Infirmary of Edinburgh (UK)

When is the study starting and how long is it expected to run for?
January 2021 to April 2027

Who is funding the study?
Wellcome Trust (UK)
UK Research and Innovation (UK)
Combating Antibiotic-Resistant Bacteria Biopharmaceutical Accelerator (UK)
Engineering and Physical Sciences Research Council (UK)

Who is the main contact?
Mrs Joanne Mair, j.mair@ed.ac.uk

Contact information

Prof Kev Dhaliwal
Scientific

Translational Healthcare Technologies Group
Queens Medical Research Institute
Centre for Inflammation Research
47 Little France Crescent
Edinburgh
EH16 4TJ
United Kingdom

ORCiD logoORCID ID 0000-0002-3925-3174
Phone +44 1312429180
Email kev.dhaliwal@ed.ac.uk
Mrs Joanne Mair
Public

Translational Healthcare Technologies Group
Queens Medical Research Institute
Centre for Inflammation Research
47 Little France Crescent
Edinburgh
EH16 4TJ
United Kingdom

Phone +44 1312429180
Email j.mair@ed.ac.uk
Mrs Katie Hamilton
Public

Translational Healthcare Technologies Group
Queens Medical Research Institute
Centre for Inflammation Research
47 Little France Crescent
Edinburgh
EH16 4TJ
United Kingdom

Phone +44 1312429180
Email k.hamilton@ed.ac.uk

Study information

Study designSingle centre observational cohort study
Primary study designObservational
Secondary study designCohort study
Study setting(s)Hospital
Study typeOther
Participant information sheet 41318 PIS v1.0 11June2021.pdf
Scientific titleProbing molecular signatures in human lung disease using novel optical technologies; Lung Spy
Study acronymLungSpy
Study objectivesInterventional fibre-based microendoscopy is safe, feasible and demonstrates early proof-of-concept. We will evaluate a suite of novel technologies to characterise tissues in the lung. We will evaluate technologies as part of platform trial with different imaging and spectroscopy systems. chemical sensors and fibre devices.
Ethics approval(s)Approved 07/10/2021, West Midlands - Edgbaston Research Ethics Committee (3rd Floor Barlow House, Minshull Street, Manchester, M1 3DZ, UK; +44 207 104 8070; edgbaston.rec@hra.nhs.uk), ref: 21/WM/0199
Health condition(s) or problem(s) studiedLung disease including infection inflammation and cancer
InterventionParticipants will undergo a bronchoscopy. A camera will be passed down the bronchoscope to the areas of interest. Small amounts of Smartprobes may be passed down the bronchoscope into the lungs. Images will be captured by the camera onto the imaging system. Patricipants may also have avleolar fluid sampled and biopsies undertaken.

A maximum of 2 chest x-rays will be performed (pre and post procedure)
Intervention typeDevice
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)bronchoscopy
Primary outcome measureFeasibility outcomes:
1. Completion of the research element of the bronchoscopy procedure utilising the technology (yes/no)
2. The imaging fibre reaches and is navigated to areas of interest in the lung (yes/no)
3. Imaging fibre delivers small volumes of liquids to areas of interest in the lung (Smartprobes and/or saline) (yes/no)

Safety assessed using routine clinical observations:
4. Pre-and post-procedure pulse, temperature, BP and cardiorespiratory exam.
5. O2 saturation during bronchoscopy procedure
6. Pre discharge (from bronchoscopy) BP, temp and pulse
7. Recording adverse events that occur up to 4 hours post procedure (pre discharge) and 24 hours post procedure.
8. Safety reporting for the medical devices
Secondary outcome measuresMeasured at the time of procedure unless otherwise noted:
1. Delivery of SmartProbes will be assessed by the fluid leaving the syringe attached to the imaging fibre.
2. FLIM signatures obtained during visualisation of suspected cancerous tissue will be compared with clinical pathology results from the patient’s resected tissue and ex vivo imaging of the resected lung tissue. Images obtained demonstrating bacterial presence and inflammatory signatures will be compared with the participants suspected pathology.
3. Safety of the procedure will be assessed by routine clinical monitoring – and recording any adverse events that occur during and/or post-procedure (up to 1 hour post procedure) and pre discharge (up to 4 hours post procedure).
4. The ability to perform a distal microlavage will be measured by the retrieval of a sufficient volume of Alveolar lavage to perform PCR. The lavage sample results will be compared to the appropriate SmartProbe signature.
Overall study start date01/01/2021
Completion date01/04/2027

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit16 Years
SexBoth
Target number of participants80
Key inclusion criteria1. Aged ≥ 16 years
2. Deemed suitable for bronchoscopy and study procedures by attending consultant (including consideration of routine medical interventions)
3. Capacity to provide informed consent
4. Readily accessible target areas with bronchoscopy (or navigational bronchoscopy where clinically indicated) and fibre based endoscopy
5. Complies with sponsor co-enrolment criteria
6. Undergoing a clinically indicated bronchoscopy or agrees to undergo a research only bronchoscopy for the purpose of the study
Key exclusion criteria1. History of anaphylaxis
2. Documented history of allergy to fluorescein
3. Women (of childbearing potential) who are pregnant or are breastfeeding
4. Currently prescribed drugs that cause increased autofluorescence in the lung, specifically amiodarone and methotrexate
Date of first enrolment01/04/2022
Date of final enrolment21/07/2022

Locations

Countries of recruitment

  • Scotland
  • United Kingdom

Study participating centre

Royal Infirmary of Edinburgh
51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA
United Kingdom

Sponsor information

University of Edinburgh
University/education

The Queen’s Medical Research Institute
Edinburgh
EH16 4TJ
Scotland
United Kingdom

Phone +44 1312423326
Email resgov@accord.scot
Website http://accord.scot/
ROR logo "ROR" https://ror.org/01nrxwf90
NHS Lothian
Hospital/treatment centre

University of Edinburgh
The Queen's Medical Research Institute
47 Little France Crescent
Edinburgh
EH16 4TJ
Scotland
United Kingdom

Phone +44 1312423325
Email accord@nhslothian.scot.nhs.uk
Website https://www.accord.scot
ROR logo "ROR" https://ror.org/03q82t418

Funders

Funder type

Charity

Wellcome Trust
Private sector organisation / Trusts, charities, foundations (both public and private)
Alternative name(s)
Wellcome, WT
Location
United Kingdom
UK Research and Innovation
Government organisation / National government
Alternative name(s)
UKRI
Location
United Kingdom
Combating Antibiotic-Resistant Bacteria Biopharmaceutical Accelerator
Private sector organisation / International organizations
Alternative name(s)
Combating Antibiotic Resistant Bacteria Biopharmaceutical Accelerator, CARB-X
Location
United States of America
Engineering and Physical Sciences Research Council
Government organisation / National government
Alternative name(s)
UKRI Engineering and Physical Sciences Research Council, Engineering and Physical Sciences Research Council - UKRI, Engineering & Physical Sciences Research Council, EPSRC
Location
United Kingdom

Results and Publications

Intention to publish date01/07/2027
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planThe results of this study will be published in peer reviewed journals and disseminated to clinical colleagues
IPD sharing planThe datasets generated during the current study will be available upon request from the study team following completion of the study.
j.mair@ed.ac.uk

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet version 1.0 11/06/2021 16/03/2022 No Yes
HRA research summary 26/07/2023 No No
Basic results 20/03/2025 21/03/2025 No No

Additional files

41318 PIS v1.0 11June2021.pdf
ISRCTN10996089_Basic Results_20March2025.pdf

Editorial Notes

24/03/2025: The recruitment end date was changed from 01/01/2027 to 21/07/2022.
21/03/2025: Basic results added.
16/03/2022: Trial's existence confirmed by West Midlands - Edgbaston Research Ethics Committee