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Digital Auscultation Test - IPF Data Collection

Digital Auscultation Tool - Development of an Innovative Approach - Using Modern Technologies - to Improve the Diagnosis of Rare Lung Diseases - Expanded Data Collection Idiopathic Pulmonary Fibrosis

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03503188
Enrollment
274
Registered
2018-04-19
Start date
2018-03-28
Completion date
2019-01-03
Last updated
2020-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Idiopathic Pulmonary Fibrosis

Brief summary

The aim of this study is the data collection for patients with IPF and symptom matched controls to create a database of lung auscultation sounds and basic patient characteristics.

Interventions

DEVICELittmann ®

electronic stethoscope

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
45 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female patients * Age ≥ 45 years at the day of the study visit * Diagnosis: * For patients with confirmed Idiopathic Pulmonary Fibrosis (IPF) diagnosis - a clinical diagnosis of IPF within the last 24 months from the day of the study visit, according to the American Thoracic Society (ATS)/ European Respiratory Society (ERS) 2011 guideline \[P11-07084\] or * For the symptom matched control - patients without a IPF diagnosis but with one of the confirmed current conditions as: * asthma diagnosed according to GINA guidelines, * COPD diagnosed according to GOLD guidelines, * pneumonia, * upper respiratory tract infection, or * acute bronchitis. * Signed and dated written informed consent in accordance with Good Clinical Practice (GCP) and local legislation prior to admission to the study

Exclusion criteria

* Any other current respiratory condition other than the pulmonary disease which qualified the patient eligibility based on inclusion criterion 3 * Any condition, according to investigator's assessment, which will not allow the patient to comply with protocol assessments or need a legal representative * Patients with a history of lobectomy, pneumonectomy or lung transplant * Patients with a Body Mass Index (BMI) \>30,0 kg/m² * Previous enrolment in this study * Women who are pregnant

Design outcomes

Primary

MeasureTime frameDescription
Main Study - The Percentage of Collected Auscultation PointsDay 1 (Visit 1)For each participants the auscultation sound files were collected at 12 points of the body. In each defined region of the participant's body, auscultation was to be performed to maximize the sound quality according to the investigator's experience. Auscultations were recorded using a Littmann Digital Stethoscope (Model 3200) and the 3M Littmann StethAssist software on a computer provided for the study. The unit of the measure is Percentage of auscultation points collected per participants.

Secondary

MeasureTime frameDescription
Entire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) ScaleDay 1 (Visit 1)Dyspnoea was assessed for participants as grade 0 and 1 of the modified MRC scale, ranging from 0 to 4 with '0´ being minor and '4´ being severe. Where, 0 = I only get breathless with strenuous exercise; 1. = I get short of breath when hurrying on level ground or walking up a slight hill; 2. = On level ground, I walk slower than people of the same age because of breathlessness, or have to stop for breath when walking at my own pace; 3. = I stop for breath after walking about 100 meters or after a few minutes on level ground; 4. = I am too breathless to leave the house or I am breathless when dressing.
Entire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumDay 1 (Visit 1)Number of participants that reported symptoms of respiratory disease (Cough and Sputum) for day time (DT) and night time (NT) is presented.
Entire Study - Smoking StatusDay 1 (Visit 1)Smoking status is presented as ex-smokers, currently smokers and never smoked participants for main and sub-study combined (entire study).
Entire Study - Body Mass Index (BMI)Day 1 (Visit 1)BMI is defined as the body weight divided by the square of the body height is presented for main and sub-study combined (entire study).
Sub Study - The Percentage of Collected Auscultation PointsDay 1 (Visit 1)For each participants the auscultation sound files were collected at 12 points of the body. In each defined region of the participant's body, auscultation was to be performed to maximize the sound quality according to the investigator's experience. Auscultations were recorded using a Littmann 3200 and the Ekuore One stethoscope. The unit of the measure is Percentage of auscultation points collected per participants.

Countries

Germany

Participant flow

Recruitment details

Multicenter, single-visit study to collect new data of participants with confirmed diagnosis of idiopathic pulmonary disease (IPF) and symptomatic controls (non-IPF). Participants were grouped based on their diagnosis at screening. Data for main study was collected from April2018 to July2018 and for substudy from September2018 to January2019.

Pre-assignment details

All participants were screened for eligibility to participate in the trial. Participants attended specialist sites which would then ensure that all participants met all inclusion/exclusion criteria. Participants were not to be entered in the trial if any one of the specific entry criteria were not met.

Participants by arm

ArmCount
IPF Group
All the participants with confirmed diagnosis of idiopathic pulmonary disease (IPF) according to the American Thoracic Society (ATS) and European Respiratory Society (ERS) 2011 guideline, based on their diagnosis at screening were included in this group.
128
Non-IPF Group
All the participants with the symptomatic control group (non-IPF group). Patients of this control group had to be diagnosed with a confirmed current condition of asthma, Chronic Obstructive Pulmonary Disease (COPD), upper respiratory tract infection, acute bronchitis or pneumonia as the symptoms of these diseases are similar to the symptoms of IPF, based on their diagnosis at screening were included in this group.
145
Total273

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyNon eligible in the sub study01

Baseline characteristics

CharacteristicIPF GroupNon-IPF GroupTotal
Age, Continuous72.1 Years
STANDARD_DEVIATION 7.9
64.1 Years
STANDARD_DEVIATION 9.9
67.8 Years
STANDARD_DEVIATION 9.8
Race and Ethnicity Not Collected0 Participants
Sex: Female, Male
Female
26 Participants76 Participants102 Participants
Sex: Female, Male
Male
102 Participants69 Participants171 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Main Study - The Percentage of Collected Auscultation Points

For each participants the auscultation sound files were collected at 12 points of the body. In each defined region of the participant's body, auscultation was to be performed to maximize the sound quality according to the investigator's experience. Auscultations were recorded using a Littmann Digital Stethoscope (Model 3200) and the 3M Littmann StethAssist software on a computer provided for the study. The unit of the measure is Percentage of auscultation points collected per participants.

Time frame: Day 1 (Visit 1)

Population: Main study- All participants entered main study set (ENMST): This included all participants for whom visit data were available and who did not take part in the substudy.

ArmMeasureValue (MEAN)Dispersion
IPF GroupMain Study - The Percentage of Collected Auscultation Points100 PercentageOfAuscultationPointsCollectedStandard Deviation 0
Non-IPF GroupMain Study - The Percentage of Collected Auscultation Points100 PercentageOfAuscultationPointsCollectedStandard Deviation 0
Secondary

Entire Study - Body Mass Index (BMI)

BMI is defined as the body weight divided by the square of the body height is presented for main and sub-study combined (entire study).

Time frame: Day 1 (Visit 1)

Population: ENT

ArmMeasureValue (MEAN)Dispersion
IPF GroupEntire Study - Body Mass Index (BMI)25.31 Kilogram/ meter^2 (kg/ m^2)Standard Deviation 2.46
Non-IPF GroupEntire Study - Body Mass Index (BMI)23.99 Kilogram/ meter^2 (kg/ m^2)Standard Deviation 3.3
Secondary

Entire Study - Participants Reported Symptoms of Respiratory Disease - Cough and Sputum

Number of participants that reported symptoms of respiratory disease (Cough and Sputum) for day time (DT) and night time (NT) is presented.

Time frame: Day 1 (Visit 1)

Population: ENT

ArmMeasureGroupValue (NUMBER)
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumNo cough (DT)41 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and Sputum1 month short period (DT)27 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and Sputum≥2 month short periods (DT)13 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumFrequentCoughWithoutInterferingUsualActivities(DT)27 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumFrequentCoughWithInterferingUsualActivities (DT)14 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumDistressing cough most of the day (DT)6 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumNo cough (NT)97 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumCough on waking only/cough ongoing toSleepOnly(NT)23 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumAwoken once or woken early due to coughing (NT)3 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumFrequent waking due to cough (NT)5 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumFrequent coughs, most of the night (NT)0 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumPatients with sputum25 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumFrequent coughs, most of the night (NT)4 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumNo cough (DT)64 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumNo cough (NT)99 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and Sputum1 month short period (DT)16 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumFrequent waking due to cough (NT)9 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and Sputum≥2 month short periods (DT)27 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumCough on waking only/cough ongoing toSleepOnly(NT)19 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumFrequentCoughWithoutInterferingUsualActivities(DT)17 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumPatients with sputum30 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumFrequentCoughWithInterferingUsualActivities (DT)18 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumAwoken once or woken early due to coughing (NT)14 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Cough and SputumDistressing cough most of the day (DT)3 Participants
Secondary

Entire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale

Dyspnoea was assessed for participants as grade 0 and 1 of the modified MRC scale, ranging from 0 to 4 with '0´ being minor and '4´ being severe. Where, 0 = I only get breathless with strenuous exercise; 1. = I get short of breath when hurrying on level ground or walking up a slight hill; 2. = On level ground, I walk slower than people of the same age because of breathlessness, or have to stop for breath when walking at my own pace; 3. = I stop for breath after walking about 100 meters or after a few minutes on level ground; 4. = I am too breathless to leave the house or I am breathless when dressing.

Time frame: Day 1 (Visit 1)

Population: All Patients Entered Set (ENT): ENT included all participants (Main Study and Sub Study) for whom visit data were available.

ArmMeasureGroupValue (NUMBER)
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale141 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale323 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale231 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale44 Participants
IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale029 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale45 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale040 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale128 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale244 Participants
Non-IPF GroupEntire Study - Participants Reported Symptoms of Respiratory Disease - Dyspnoea Recorded Via a Modified Medical Research Council (MRC) Scale328 Participants
Secondary

Entire Study - Smoking Status

Smoking status is presented as ex-smokers, currently smokers and never smoked participants for main and sub-study combined (entire study).

Time frame: Day 1 (Visit 1)

Population: ENT

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
IPF GroupEntire Study - Smoking StatusEx-smoker85 Participants
IPF GroupEntire Study - Smoking StatusCurrently smokes1 Participants
IPF GroupEntire Study - Smoking StatusNever smoked42 Participants
Non-IPF GroupEntire Study - Smoking StatusEx-smoker78 Participants
Non-IPF GroupEntire Study - Smoking StatusCurrently smokes26 Participants
Non-IPF GroupEntire Study - Smoking StatusNever smoked41 Participants
Secondary

Sub Study - The Percentage of Collected Auscultation Points

For each participants the auscultation sound files were collected at 12 points of the body. In each defined region of the participant's body, auscultation was to be performed to maximize the sound quality according to the investigator's experience. Auscultations were recorded using a Littmann 3200 and the Ekuore One stethoscope. The unit of the measure is Percentage of auscultation points collected per participants.

Time frame: Day 1 (Visit 1)

Population: Substudy- All participants entered substudy set (ENSST): This included all participants for whom visit data were available and who took part in the substudy.

ArmMeasureGroupValue (MEAN)Dispersion
IPF GroupSub Study - The Percentage of Collected Auscultation PointsLittmann 3200100 PercentageOfAuscultationPointsCollectedStandard Deviation 0
IPF GroupSub Study - The Percentage of Collected Auscultation PointsEkuore One stethoscope100 PercentageOfAuscultationPointsCollectedStandard Deviation 0
Non-IPF GroupSub Study - The Percentage of Collected Auscultation PointsLittmann 3200100 PercentageOfAuscultationPointsCollectedStandard Deviation 0
Non-IPF GroupSub Study - The Percentage of Collected Auscultation PointsEkuore One stethoscope100 PercentageOfAuscultationPointsCollectedStandard Deviation 0

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026