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COPDSLPCOPDNCT04584801

SLP Model Development in the Diagnosis of COPD Patients

An observational study of COPD and Healthy Smoker, run by Pneumacare Ltd at 7 sites in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is an observational, comparative, multicentre study to develop a model for the Thora3Di™ against standard practice in patients who are undergoing investigation for COPD. The core methodology involves capturing of data during a short period of measurement of breathing using SLP against spirometric outcomes. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
COPD, Healthy Smoker
What is being tested?
Structured Light Plethysmography
Type of treatment
Medical device
How many people
201 participants
Where
7 sitesUnited Kingdom
Study dates
5 May 2021to 15 Jun 2023
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 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Development Phase (Original Part A) * Cohort A (N=50): COPD stage 1 * Cohort B (N=50): COPD stage 2 * Cohort C (N=50): COPD stage 3 * Cohort D (N=50): COPD stage 4 * Cohort E (N=50): Healthy Smokers (≥35 years old, current or ex-smoker with a history of ≥10 pack-years (20 cigarettes smoked per day for 1 year)

Who may be able to join

  • Any adult (≥18 years old) who has been diagnosed with COPD guide GOLD criteria (FEV1/FVC ratio post bronchodilator <0.70)
  • Healthy Smokers (≥35 years old, current or ex-smoker with a history of ≥10 pack years (20 cigarettes smoked per day for 10 year))

Who cannot join

  • Be unable to sit in an upright position for required period
  • Have had deteriorated COPD symptoms since the last spirometry unless willing to undergo spirometry testing
  • Have significant co-morbidities (i.e. Chest work or spinal deformity, OSA, AHI >30 secs
  • Any other significant disease or disorder which, in the opinion of the investigator, may either put the participants at risk because of participation in the study, or may influence the result of the study, or the participants' ability to participate in the study
  • Height > 194 cm
  • BMI >40
  • Female participant who is pregnant, lactating or planning pregnancy during the course of the study
  • Be unable to consent or comply with the study protocol

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

United Kingdom7 sites
  • Buckinghamshire Healthcare NHS Trust - Stoke Mandeville Hospital

    Aylesbury

  • University Hospitals Birmingham NHS Foundation Trust

    Birmingham

  • Medway Community Healthcare

    Gillingham

  • Liverpool Heart and Chest Hospital

    Liverpool

  • Liverpool University Hospitals NHS Foundation Trust

    Liverpool

  • Barts Health NHS Trust - the Royal London Hospital

    London

  • Oxford University Hospitals NHS Foundation Trust

    Oxford

Other trials in United Kingdom

About this study

Official title: A Comparative, Multi Centre Study, to Develop a Model for Structured Light Plethysmography Against Standard of Care in the Diagnosis of Chronic Obstructive Pulmonary Disease for Patients Who Plan to Undergo Spirometry Testing

This is an observational, comparative, multicentre study to develop a model for the Thora3Di™ against standard practice in patients who are undergoing investigation for COPD. The core methodology involves capturing of data during a short period of measurement of breathing using SLP against spirometric outcomes.

Read the detailed description

This study will generate data to characterise the tidal breathing patterns and parameters with Thora-3Di™ against spirometry FEV1/FVC and %predicted. Subjects will have a Part A visit (Development Phase) to develop algorithms for COPD diagnosis. At Part A visit, subjects will have two 5-minute SLP measurements (Pre and Post bronchodilator). The SLP measurement should be performed prior to standard lung function tests with minimal impact on clinical time and no change to hospital attendance. Also, subjects will be asked to report concomitant medications and adverse events and fill in COPD assessment test (CAT™).

Conditions
COPD, Healthy Smoker
Being tested
Structured Light Plethysmography
Medical subject headings
Pulmonary Disease, Chronic Obstructive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Structured Light PlethysmographyDevice

    Also called Thora-3Di™

    Development Phase (Original Part A): Participants will have two 5-minute SLP measurements (Pre and Post bronchodilator).

    Participants will also undergo standard of care spirometry assessment

Study groups in NCT04584801
Study groupRoleWhat they receive
COPD PatientsDevelopment Phase Any adult (≥18 years old) who has been diagnosed with COPD guide GOLD criteria (FEV1/FVC ratio post bronchodilator <0.70) * Cohort A (N=50): COPD stage 1 * Cohort B (N=50): COPD stage 2 * Cohort C (N=50): COPD stage 3 * Cohort D (N=50): COPD stage 4
Receives: Device: Structured Light Plethysmography
Healthy Smoker Subjects• Cohort E (N=50): Healthy Smokers (≥35 years old, current or ex-smoker with a history of ≥10 pack-years (20 cigarettes smoked per day for 1 year)
Receives: Device: Structured Light Plethysmography

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To develop a machine learning model to use SLP data in patients diagnosed with COPD or healthy smokers to predict historical spirometry results (within 6 months) or prospective spirometry results, and classify subjects according to COPD/non-COPD.

    The proportion of points falling between the upper and lower 95% CIs of the Bland-Altman plot of the average of FEV1/FVC spirometer values and the output from the model using the SLP parameters against the difference between the spirometer values and their SLP parameter model counterparts.

    Measured: 2 years

Secondary outcomes (1)
  1. To evaluate the safety of the Thora-3Di™

    Incidence of adverse events while the SLP techniques are carried out.

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Oct 2020
  2. Study start5 May 2021
  3. Primary completion15 Jun 2023
  4. Study completion15 Jun 2023

Resources

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
Cohort
Time perspective
Prospective
Enrolment
201 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04584801
Sponsor's protocol ID
PMC-SLPCOPD-2020
Acronym
SLPCOPD
Status last verified
Jan 2024
First submitted
6 Oct 2020
Last updated
19 Sep 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Via UK NIHR website

Questions about this trial

What is this clinical trial studying?

An observational study of COPD and Healthy Smoker, run by Pneumacare Ltd at 7 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 2 inclusion and 8 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 19 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 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?

To develop a machine learning model to use SLP data in patients diagnosed with COPD or healthy smokers to predict historical spirometry results (within 6 months) or prospective spirometry results, and classify subjects according to COPD/non-COPD. (time frame: 2 years). 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 19 Sep 2024.

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