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CompletedNCT05897944Updated Mar 19, 2025

Creating and Assessing a Voice Dataset for Automated Classification of Chronic Obstructive Pulmonary Disease

An observational study in Chronic Obstructive Pulmonary Disease, sponsored by Blekinge Institute of Technology. Completed at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-03-19.

Sponsored by Blekinge Institute of Technology · Observational

Study type
Observational
Model
Case-control
Time perspective
Cross-sectional
Enrollment
72
Ages
18 Years and older
Sex
All
01

Study summary

This work aims to evaluate whether voice recordings collected from patients diagnosed with COPD and healthy control groups can be used to detect the disease using machine learning techniques.

Read the detailed description

Voice data and sociodemographic data on gender and age will be collected through the "VoiceDiganostic" application from the company Voice Diagnostic, which allows one to participate without location dependency. Participants with a diagnosis will be marked as the COPD group, and others will be marked as the healthy control group. Private information such as known comorbidities, personal security numbers, health parameters and communication information will be separately noticed in a participation table for each group.

The collected data will be transformed into mathematical vocal measures called voice features. A dataset consisting of voice features in conjunction with demographics and health data will be constructed for further usage as an input to ML techniques.

Descriptive statistical analysis will be held on attributes containing information on input data and gained outcomes from ML algorithms. The achieved results will be presented in the form of summary tables and graphs.

02

Conditions studied

  • Chronic Obstructive Pulmonary Disease

Keywords

  • Automatic
  • Classification
  • COPD
  • Machine Learning
  • Mobile phone
03

In context

Pulmonary Disease, Chronic Obstructive

5,520 studies on the registry are indexed under Pulmonary Disease, Chronic Obstructive; 856 are open to participants now.

This study's enrollment of 72 is below the median of 158 across 1,497 observational studies indexed under Pulmonary Disease, Chronic Obstructive.

Browse Pulmonary Disease, Chronic Obstructive studies →

Lead sponsor

Blekinge Institute of Technology is the lead sponsor of 14 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Data will be collected from participants 18 years old and older with and without COPD diagnosis will be recruited.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • being 18 years old and older.

Exclusion criteria

Exclusion Criteria:

  • being under 18 years old.
05

Study design

Observational model
Case-control
Time perspective
Cross-sectional
Enrollment
72 participants (actual)
Patient registry
No

Groups and cohorts

  • COPD

    Participants with clinically diagnosed Chronic obstructive pulmonary disease. Total 34 recruitment, 18 Female, 16 Male

    Other: COPD

  • HC

    Participants without Chronic obstructive pulmonary disease diagnosis. Total 38 recruitment, 20 Female, 18 Male

    Other: COPD

Interventions

  • OtherCOPD

    A data set consisting of information from COPD and HC groups will be used to experiment with the classification performance of several Machine Learning techniques.

    Also known as: HC

06

What researchers measure

Primary outcomes

  1. Accuracy

    Binary detection performance of the ML algorithm

    Time frame: Week 51

  2. Input data importance scale

    Features used as input data will be ranked from most important to less important one.

    Time frame: Week 51

07

Study locations

1 site
  • Blekinge Institute of Technology
    Karlskrona, Blekinge 37179, Sweden
08

References and documents

Individual participant data

Plan to share: No — Participant data can not be shared due to the GDPR. However, the dataset created can be available upon request from the institution.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Dec 2021 to primary completion in Aug 2024, 31 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 1, 2023
First posted
Jun 9, 2023
StartActual
Dec 16, 2021
Primary completionActual
Aug 12, 2024
CompletionActual
Oct 30, 2024
Last update
Mar 19, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 19, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05897944
Lead sponsor
Blekinge Institute of Technology
Collaborators
Excellence Center at Linköping - Lund in Information Technology (ELLIIT)
Responsible party
Johan Sanmartin Berglund (Professor, MD, PhD, Blekinge Institute of Technology) — Principal investigator
First posted
Jun 9, 2023
Start date
Dec 16, 2021
Primary completion
Aug 12, 2024
Completion
Oct 30, 2024
Last update
Mar 19, 2025

Study contacts

Johan Sanmartin Berglund, MD, PhD
principal investigator · Blekinge Institute of Technology

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.

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