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INREAL - Nintedanib for Changes in Dyspnea and Cough in Patients Suffering From Chronic Fibrosing Interstitial Lung Disease (ILD) With a Progressive Phenotype in Everyday Clinical Practice: a Real-world Evaluation

Prospective Observational Investigation of Possible Correlations Between Change in FVC and Change in Cough or Dyspnea Scores Using the Living With Pulmonary Fibrosis Questionnaire (L-PF) Between Baseline and After Approximately 52 Weeks of Nintedanib Treatment in Patients Suffering From Chronic Fibrosing ILD With a Progressive Phenotype

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04702893
Acronym
INREAL
Enrollment
108
Registered
2021-01-11
Start date
2021-05-28
Completion date
2024-04-09
Last updated
2025-04-25

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

Conditions

Lung Diseases, Interstitial

Brief summary

The primary objective of this observational study is to investigate the correlation between changes from baseline at 52 weeks in forced vital capacity (FVC) and changes from baseline at 52 weeks in dyspnea score points or cough score points as measured with the pulmonary fibrosis questionnaire (L-PF) questionnaire over 52 weeks of nintedanib treatment in patients suffering from chronic fibrosing interstitial lung disease (ILD) with a progressive phenotype (excluding idiopathic pulmonary fibrosis (IPF)).

Interventions

DRUGNintedanib

150 or 100 milligrams (mg) of nintedanib, when 150 mg is not tolerated, twice daily, administered 12 hours apart, according to the approved label.

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Adults ≥ 18 years at Visit 1 * Subjects must be contractually capable and mentally able to understand and follow the instructions of the study personnel * Physician's diagnosis of chronic fibrosing interstitial lung disease (ILD) with a progressive phenotype, except idiopathic pulmonary fibrosis (IPF) * Treatment with nintedanib in INREAL will be the first and only prescription of any antifibrotic treatment for each individual patient within this observational study after a physician's decision being made for this treatment option earlier * Outpatients not currently hospitalized with a life expectancy \> 12 months per investigator's assessment * Written informed consent prior to study participation * Current forced vital capacity (FVC) measurement (taken within the last 3 months) available in the patient file * Women of childbearing potential must take appropriate precautions against getting pregnant during the intake of nintedanib

Exclusion criteria

* Patients with contraindications according to Summary of Product Characteristics (SmPC) * Prior use of any antifibrotic treatment * Lack of informed consent * Pregnant or lactating females * Any physician diagnosed exacerbation of ILD in the patient's history file, irrespective of time since event * Current diagnosis of lung cancer * Respiratory failure (pH \< 7,35 and/ or respiratory rate \> 30/min) in the patient's history * Participation in a parallel interventional clinical trial * Patients being spouse or lateral relatives to the second degree or economically dependent from the investigator

Design outcomes

Primary

MeasureTime frameDescription
Correlation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [% Predicted] and Change From Baseline to Week 52 in Dyspnea Symptom ScoreAt baseline and at week 52±6.The correlation between the change from baseline to week 52 (week 52 - baseline) in forced vital capacity (FVC) \[% predicted\] and change from baseline to week 52 (week 52 - baseline) in dyspnea symptom score was calculated using the Pearson's coefficient of correlation. The forced vital capacity measures the amount of air that can be forcefully exhaled from the lungs after a maximum inhalation. The dyspnea symptom score was measured using the living with pulmonary fibrosis questionnaire (L-PF). The L-PF contained a dyspnea symptom module with 12 items to assess the severity of shortness of breath, where the higher the score, the greater the impairment. The coefficient of correlation ranges from -1 to 1, indicating a negative association between the variables the closer it is to -1 and a positive association the closer it is to 1.
Correlation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [% Predicted] and Change From Baseline to Week 52 in Cough Symptom ScoreAt baseline and at week 52±6.The correlation between the change from baseline to week 52 (week 52 - baseline) in forced vital capacity (FVC) \[% predicted\] and change from baseline to week 52 (week 52 - baseline) in cough symptom score was calculated using the Pearson's coefficient of correlation. The forced vital capacity measures the amount of air that can be forcefully exhaled from the lungs after a maximum inhalation. The cough symptom score was measured using the living with pulmonary fibrosis questionnaire (L-PF). The L-PF contained a cough symptom module with 6 items to assess the severity of cough symptoms, where the higher the score, the more severe the cough. The coefficient of correlation ranges from -1 to 1, indicating a negative association between the variables the closer it is to -1 and a positive association the closer it is to 1.

Secondary

MeasureTime frameDescription
Correlation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [mL] and Change From Baseline to Week 52 in Dyspnea Symptom ScoreAt baseline and at week 52±6.The correlation between the change from baseline to week 52 (week 52 - baseline) in forced vital capacity (FVC) \[mL\] and change from baseline to week 52 (week 52 - baseline) in dyspnea symptom score was calculated using the Pearson's coefficient of correlation. The forced vital capacity measures the amount of air that can be forcefully exhaled from the lungs after a maximum inhalation. The dyspnea symptom score was measured using the living with pulmonary fibrosis questionnaire (L-PF). The L-PF contained a dyspnea symptom module with 12 items to assess the severity of shortness of breath, where the higher the score, the greater the impairment. The coefficient of correlation ranges from -1 to 1, indicating a negative association between the variables the closer it is to -1 and a positive association the closer it is to 1.
Correlation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [mL] and Change From Baseline to Week 52 in Cough Symptom ScoreAt baseline and at week 52±6.The correlation between the change from baseline to week 52 (week 52 - baseline) in forced vital capacity (FVC) \[mL\] and change from baseline to week 52 (week 52 - baseline) in cough symptom score was calculated using the Pearson's coefficient of correlation. The forced vital capacity measures the amount of air that can be forcefully exhaled from the lungs after a maximum inhalation. The cough symptom score was measured using the living with pulmonary fibrosis questionnaire (L-PF). The L-PF contained a cough symptom module with 6 items to assess the severity of cough symptoms, where the higher the score, the more severe the cough. The coefficient of correlation ranges from -1 to 1, indicating a negative association between the variables the closer it is to -1 and a positive association the closer it is to 1.
Absolute Change From Baseline in Living With Pulmonary Fibrosis Questionnaire (L-PF) Cough Symptom Score [Points] at Week 52MMRM included measurements at week 13±6, week 26±6, week 39±6 and week 52±6. Change from baseline values at week 52±6 is reported.This outcome measured the absolute change from baseline to week 52 in the cough symptom score, assessed by the living with pulmonary fibrosis questionnaire (L-PF). The L-PF includes a cough symptom module with 6 items to evaluate the severity of cough symptoms. Each item is scored on a scale of 0 to 4, with higher scores indicating more severe symptoms. The total cough symptom score was calculated using the formula: (sum of each individual score/24)\*100, ranging from 0 to 100, where the higher the score, the more severe the cough. Results were calculated as \[Week 52\] - \[Baseline\]. The analysis was performed using a mixed model for repeated measures (MMRM) with fixed independent effects for baseline value, visit, and baseline-by-visit interaction, and a random effect for each patient. Within-patient errors were represented using an unstructured variance-covariance structure.
Absolute Change From Baseline in Living With Pulmonary Fibrosis Questionnaire (L-PF) Dyspnea Symptom Score [Points] at Week 52MMRM included measurements at week 13±6, week 26±6, week 39±6 and week 52±6. Change from baseline values at week 52±6 is reported.This outcome measured the absolute change from baseline to week 52 in the dyspnea symptom score, assessed by the living with pulmonary fibrosis questionnaire (L-PF). The L-PF includes a dyspnea symptom module with 12 items to evaluate the severity of dyspnea symptoms. Each item is scored on a scale of 0 to 5, with higher scores indicating more severe symptoms. The total dyspnea symptom score was calculated using the formula: (sum of each individual score/total score possible)\*100, ranging from 0 to 100, where the higher the score, the more severe the dyspnea. Results were calculated as \[Week 52\] - \[Baseline\]. The analysis was performed using a mixed model for repeated measures (MMRM) with fixed independent effects for baseline value, visit, and baseline-by-visit interaction, and a random effect for each patient. Within-patient errors were represented using an unstructured variance-covariance structure.

Countries

Germany

Participant flow

Recruitment details

Single-arm, open-label observational cohort study investigating the effect of nintedanib on patient-reported outcomes (PROs) like dyspnea and cough in chronic interstitial lung disease (ILD) patients (excluding idiopathic pulmonary fibrosis (IPF)) over 52 weeks.

Pre-assignment details

Only patients that met all inclusion and none of the exclusion criteria were included.

Participants by arm

ArmCount
Nintedanib-treated Patients
Patients diagnosed with chronic fibrosing interstitial lung disease (ILD) with a progressive phenotype (excluding idiopathic pulmonary fibrosis (IPF)), who did not receive previous antifibrotic treatment, received 150 milligrams (mg) of nintedanib twice daily, administered 12 hours apart, according to the approved label, for approximately 52 weeks. Participants who did not tolerate 150 mg of nintedanib switched to 100 mg twice daily.
102
Total102

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath10
Overall StudyLost to Follow-up7
Overall StudyNot treated6
Overall StudyOther reasons than listed11
Overall StudyWithdrawal by Subject3

Baseline characteristics

CharacteristicNintedanib-treated Patients
Age, Continuous70.47 Years
STANDARD_DEVIATION 10.74
Forced vital capacity (FVC) [% predicted]65.18 Percentage
STANDARD_DEVIATION 18.86
Living with pulmonary fibrosis questionnaire (L-PF) cough symptom score37.46 Units on a scale
STANDARD_DEVIATION 25.67
Living with pulmonary fibrosis questionnaire (L-PF) dyspnea symptom score24.71 Units on a scale
STANDARD_DEVIATION 18.56
Race and Ethnicity Not Collected— Participants
Sex: Female, Male
Female
38 Participants
Sex: Female, Male
Male
64 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
10 / 102
other
Total, other adverse events
45 / 102
serious
Total, serious adverse events
16 / 102

Outcome results

Primary

Correlation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [% Predicted] and Change From Baseline to Week 52 in Cough Symptom Score

The correlation between the change from baseline to week 52 (week 52 - baseline) in forced vital capacity (FVC) \[% predicted\] and change from baseline to week 52 (week 52 - baseline) in cough symptom score was calculated using the Pearson's coefficient of correlation. The forced vital capacity measures the amount of air that can be forcefully exhaled from the lungs after a maximum inhalation. The cough symptom score was measured using the living with pulmonary fibrosis questionnaire (L-PF). The L-PF contained a cough symptom module with 6 items to assess the severity of cough symptoms, where the higher the score, the more severe the cough. The coefficient of correlation ranges from -1 to 1, indicating a negative association between the variables the closer it is to -1 and a positive association the closer it is to 1.

Time frame: At baseline and at week 52±6.

Population: Treated set (TS): All patients with signed informed consent who received at least one dose of nintedanib. Patients with missing data were excluded from the analysis.

ArmMeasureValue (NUMBER)
Nintedanib-treated PatientsCorrelation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [% Predicted] and Change From Baseline to Week 52 in Cough Symptom Score-0.1093 Pearson's coefficient of correlation
p-value: 0.5135Z-test of correlation
Primary

Correlation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [% Predicted] and Change From Baseline to Week 52 in Dyspnea Symptom Score

The correlation between the change from baseline to week 52 (week 52 - baseline) in forced vital capacity (FVC) \[% predicted\] and change from baseline to week 52 (week 52 - baseline) in dyspnea symptom score was calculated using the Pearson's coefficient of correlation. The forced vital capacity measures the amount of air that can be forcefully exhaled from the lungs after a maximum inhalation. The dyspnea symptom score was measured using the living with pulmonary fibrosis questionnaire (L-PF). The L-PF contained a dyspnea symptom module with 12 items to assess the severity of shortness of breath, where the higher the score, the greater the impairment. The coefficient of correlation ranges from -1 to 1, indicating a negative association between the variables the closer it is to -1 and a positive association the closer it is to 1.

Time frame: At baseline and at week 52±6.

Population: Treated set (TS): All patients with signed informed consent who received at least one dose of nintedanib. Patients with missing data were excluded from the analysis.

ArmMeasureValue (NUMBER)
Nintedanib-treated PatientsCorrelation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [% Predicted] and Change From Baseline to Week 52 in Dyspnea Symptom Score-0.2576 Pearson's coefficient of correlation
p-value: 0.1185Z-test of correlation
Secondary

Absolute Change From Baseline in Living With Pulmonary Fibrosis Questionnaire (L-PF) Cough Symptom Score [Points] at Week 52

This outcome measured the absolute change from baseline to week 52 in the cough symptom score, assessed by the living with pulmonary fibrosis questionnaire (L-PF). The L-PF includes a cough symptom module with 6 items to evaluate the severity of cough symptoms. Each item is scored on a scale of 0 to 4, with higher scores indicating more severe symptoms. The total cough symptom score was calculated using the formula: (sum of each individual score/24)\*100, ranging from 0 to 100, where the higher the score, the more severe the cough. Results were calculated as \[Week 52\] - \[Baseline\]. The analysis was performed using a mixed model for repeated measures (MMRM) with fixed independent effects for baseline value, visit, and baseline-by-visit interaction, and a random effect for each patient. Within-patient errors were represented using an unstructured variance-covariance structure.

Time frame: MMRM included measurements at week 13±6, week 26±6, week 39±6 and week 52±6. Change from baseline values at week 52±6 is reported.

Population: Treated set (TS): All patients with signed informed consent who received at least one dose of nintedanib. Only patients with at least one post baseline value and baseline value were included in the analysis.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Nintedanib-treated PatientsAbsolute Change From Baseline in Living With Pulmonary Fibrosis Questionnaire (L-PF) Cough Symptom Score [Points] at Week 523.86 Units on a scaleStandard Error 3.28
Secondary

Absolute Change From Baseline in Living With Pulmonary Fibrosis Questionnaire (L-PF) Dyspnea Symptom Score [Points] at Week 52

This outcome measured the absolute change from baseline to week 52 in the dyspnea symptom score, assessed by the living with pulmonary fibrosis questionnaire (L-PF). The L-PF includes a dyspnea symptom module with 12 items to evaluate the severity of dyspnea symptoms. Each item is scored on a scale of 0 to 5, with higher scores indicating more severe symptoms. The total dyspnea symptom score was calculated using the formula: (sum of each individual score/total score possible)\*100, ranging from 0 to 100, where the higher the score, the more severe the dyspnea. Results were calculated as \[Week 52\] - \[Baseline\]. The analysis was performed using a mixed model for repeated measures (MMRM) with fixed independent effects for baseline value, visit, and baseline-by-visit interaction, and a random effect for each patient. Within-patient errors were represented using an unstructured variance-covariance structure.

Time frame: MMRM included measurements at week 13±6, week 26±6, week 39±6 and week 52±6. Change from baseline values at week 52±6 is reported.

Population: Treated set (TS): All patients with signed informed consent who received at least one dose of nintedanib. Only patients with at least one post baseline value and baseline value were included in the analysis.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Nintedanib-treated PatientsAbsolute Change From Baseline in Living With Pulmonary Fibrosis Questionnaire (L-PF) Dyspnea Symptom Score [Points] at Week 526.26 Units on a scaleStandard Error 2.35
Secondary

Correlation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [mL] and Change From Baseline to Week 52 in Cough Symptom Score

The correlation between the change from baseline to week 52 (week 52 - baseline) in forced vital capacity (FVC) \[mL\] and change from baseline to week 52 (week 52 - baseline) in cough symptom score was calculated using the Pearson's coefficient of correlation. The forced vital capacity measures the amount of air that can be forcefully exhaled from the lungs after a maximum inhalation. The cough symptom score was measured using the living with pulmonary fibrosis questionnaire (L-PF). The L-PF contained a cough symptom module with 6 items to assess the severity of cough symptoms, where the higher the score, the more severe the cough. The coefficient of correlation ranges from -1 to 1, indicating a negative association between the variables the closer it is to -1 and a positive association the closer it is to 1.

Time frame: At baseline and at week 52±6.

Population: Treated set (TS): All patients with signed informed consent who received at least one dose of nintedanib. Patients with missing data were excluded from the analysis.

ArmMeasureValue (NUMBER)
Nintedanib-treated PatientsCorrelation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [mL] and Change From Baseline to Week 52 in Cough Symptom Score-0.1566 Pearson's coefficient of correlation
p-value: 0.3478Z-test of correlation
Secondary

Correlation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [mL] and Change From Baseline to Week 52 in Dyspnea Symptom Score

The correlation between the change from baseline to week 52 (week 52 - baseline) in forced vital capacity (FVC) \[mL\] and change from baseline to week 52 (week 52 - baseline) in dyspnea symptom score was calculated using the Pearson's coefficient of correlation. The forced vital capacity measures the amount of air that can be forcefully exhaled from the lungs after a maximum inhalation. The dyspnea symptom score was measured using the living with pulmonary fibrosis questionnaire (L-PF). The L-PF contained a dyspnea symptom module with 12 items to assess the severity of shortness of breath, where the higher the score, the greater the impairment. The coefficient of correlation ranges from -1 to 1, indicating a negative association between the variables the closer it is to -1 and a positive association the closer it is to 1.

Time frame: At baseline and at week 52±6.

Population: Treated set (TS): All patients with signed informed consent who received at least one dose of nintedanib. Patients with missing data were excluded from the analysis.

ArmMeasureValue (NUMBER)
Nintedanib-treated PatientsCorrelation Between Change From Baseline to Week 52 in Forced Vital Capacity (FVC) [mL] and Change From Baseline to Week 52 in Dyspnea Symptom Score-0.2909 Pearson's coefficient of correlation
p-value: 0.0764Z-test of correlation

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026