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A Study to Find Out Whether BI 1015550 Improves Lung Function in People With Idiopathic Pulmonary Fibrosis (IPF)

A Double Blind, Randomized, Placebo-controlled Trial Evaluating the Efficacy and Safety of BI 1015550 Over at Least 52 Weeks in Patients With Idiopathic Pulmonary Fibrosis (IPF)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05321069
Enrollment
1177
Registered
2022-04-11
Start date
2022-10-06
Completion date
2024-12-17
Last updated
2025-10-20

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

This study is open to adults with a lung disease called Idiopathic Pulmonary Fibrosis (IPF). People can join the study if they are 40 years or older. If they already take nintedanib or pirfenidone for their IPF, they can continue treatment throughout the study. The purpose of this study is to find out whether a medicine called BI 1015550 helps people with IPF. Participants are put into 3 groups randomly, which means by chance. Participants in 2 groups take different doses of BI 1015550 as tablets twice a day. Participants in the placebo group take placebo tablets twice a day. Placebo tablets look like BI 1015550 tablets but do not contain any medicine. Participants are in the study for up to two and a half years. During the first year, they visit the study site 10 times. Afterwards, they visit the study site every 3 months. The doctors regularly test participants' lung function. The results of the lung function tests are compared between the groups. The doctors also regularly check participants' health and take note of any unwanted effects.

Interventions

DRUGBI 1015550

Participants received film-coated nerandomilast tablets orally twice daily at doses of either 9 mg or 18 mg, with each dose administered at least 12 hours apart and taken with 250 mL of water.

DRUGPlacebo

Participants received placebo matching 9 mg or 18 mg nerandomilast film-coated tablets orally twice daily, with doses given at least 12 hours apart and each taken with 250 mL of water.

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

1. Patients ≥40 years old at the time of signed informed consent. 2. Signed and dated written informed consent in accordance with ICH-GCP and local legislation prior to admission to the trial. 3. Diagnosis of Idiopathic Pulmonary Fibrosis (IPF). 4. Patients may be either: * on a stable therapy\* with nintedanib or pirfenidone for at least 12 weeks prior to Visit 1 and during screening and are planning to stay on this background treatment after randomization. Combination of nintedanib plus pirfenidone is not allowed. (\*stable therapy is defined as the individually and general tolerated regimen of either nintedanib or pirfenidone (no dose changes) for at least 12 weeks). * not on a treatment with nintedanib or pirfenidone for at least 8 weeks prior to Visit 1 and during the screening period (e.g. either Antifibrotic (AF)-treatment naïve or previously discontinued) and do not plan to start or re-start antifibrotic treatment. 5. Forced Vital Capacity (FVC) ≥45% of predicted normal at Visit 1. 6. Diffusing Capacity (of Lung) for Carbon Monoxide (DLCO) ≥25% of predicted normal corrected for hemoglobin (Hb) at Visit 1. 7. Women of childbearing potential (WOCBP) must be ready and able to use highly effective methods of birth control. WOCBP taking oral contraceptives (OCs) also have to use one barrier method.

Exclusion criteria

1. Prebronchodilator Forced Expiratory Volume in 1 second (FEV1)/Forced vital capacity (FVC) \<0.7 at Visit 1. 2. In the opinion of the Investigator, other clinically significant pulmonary abnormalities. 3. Acute Idiopathic Pulmonary Fibrosis (IPF) exacerbation within 3 months prior to Visit 1 and/or during the screening period (investigator-determined). 4. Relevant chronic or acute infections including human immunodeficiency virus (HIV) and viral hepatitis. 5. Confirmed infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) not fully recovered according to investigator judgement within the 4 weeks prior to randomization (Visit 2). 6. Major surgery (major according to the investigator's assessment) performed within 6 weeks prior to Visit 2 or planned during the trial period, e.g. hip replacement. Registration on lung transplantation list would not be considered as planned major surgery. 7. Any documented active or suspected malignancy or history of malignancy within 5 years prior to Visit 1, except appropriately treated basal cell carcinoma of the skin, in situ squamous cell carcinoma of the skin or in situ carcinoma of uterine cervix. 8. Aspartate aminotransferase (AST) or Alanine Aminotransferase (ALT) \>2.5 x Upper limit of normal (ULN) or total Bilirubin \>1.5 x ULN at Visit 1. Further

Design outcomes

Primary

MeasureTime frameDescription
Absolute Change From Baseline in Forced Vital Capacity (FVC) [mL] at Week 52The MMRM model is a longitudinal analysis, and it incorporated FVC measurements from baseline (Week -8 to Week -1) and Week 2, Week 6, Week 12, Week 18, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52The absolute change from baseline in Forced Vital Capacity (FVC) \[mL\] at Week 52 is reported. The absolute change from baseline in forced vital capacity (FVC) at Week 52 was analyzed using a restricted maximum likelihood (REML)-based mixed model with repeated measures (MMRM). The model included fixed categorical effects of treatment and baseline antifibrotic use at each visit, as well as the continuous effect of baseline FVC. Visit was treated as a repeated measure, with an unstructured covariance structure for within-patient variability.

Secondary

MeasureTime frameDescription
Time to First Acute IPF Exacerbation or Death Over the Duration of the TrialFrom first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.The time to first acute IPF exacerbation or death during the trial is reported as the number of participants who experienced either event. Acute IPF is defined as an acute, clinically significant respiratory deterioration characterized by evidence of new, widespread alveolar abnormality, with all of the following: Acute worsening or development of dyspnea, typically of less than 1 month's duration. Computed tomography showing new bilateral ground-glass opacity and/or consolidation superimposed on a background pattern consistent with IPF. Deterioration not fully explained by cardiac failure or fluid overload. If more than one component occurred on the same day, the patient was counted under the first event according to the following hierarchy: acute IPF exacerbation followed by death.
Time to Hospitalization for Respiratory Cause or Death Over the Duration of the TrialFrom first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.Time to hospitalization for respiratory cause or death over the duration of the trial is reported as the number of participants who experienced either event. Hospitalizations due to respiratory causes were recorded on a specific non-elective hospitalization CRF page. This page captured the hospitalization date, confirmation of a respiratory cause, and the primary admission diagnosis. If more than one component occurred on the same day, the patient was counted under the first event according to the hierarchy: hospitalization for respiratory cause, followed by death.
Time to Absolute Decline in Forced Vital Capacity (FVC) % Predicted of >10% From Baseline or Death Over the Duration of the TrialFrom first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.The time to absolute decline of more than 10% from baseline in forced vital capacity (FVC) percent predicted, or death, over the duration of the trial is reported as the number of participants who experienced either event. If more than one component occurred on the same day, the patient was counted under the first event according to the hierarchy; Absolute decline in FVC % predicted of \> 10% followed by death.
Time to Absolute Decline in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Percentage Predicted by More Than 15% From Baseline or Death, Measured Over the Duration of the TrialFrom first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.The time to absolute decline of more than 15% from baseline in diffusing capacity of the lungs for carbon monoxide (DLCO) percent predicted, or death, over the duration of the trial is reported as the number of participants who experienced either event. Predicted DLCO value was corrected for hemoglobin (Hb). If more than one component occurred on the same day, the patient was counted under the first event according to the hierarchy: Absolute decline in DLCO % predicted of \> 15%, followed by Death.
Time to Death Over the Duration of the TrialFrom first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.Time to death over the duration of the trial is reported as the number of participants who died. Time to death will be based either on the date of death on the AE report for patients with AEs leading to death or will be based on the information from the vital status assessment.
Key Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialFrom first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.Time to the first occurrence of any component of the composite endpoint-acute IPF exacerbation, hospitalization for a respiratory cause, or death (whichever occurred first)-is reported as the number of participants who experienced one or more of these events during the trial. Acute IPF is defined as an acute, clinically significant respiratory deterioration characterized by evidence of new, widespread alveolar abnormality, with all of the following: Acute worsening or development of dyspnea, typically of less than 1 month's duration. Computed tomography showing new bilateral ground-glass opacity and/or consolidation superimposed on a background pattern consistent with IPF. Deterioration not fully explained by cardiac failure or fluid overload. If more than one component occurred on the same day, the patient was counted under the first event according to the following hierarchy: acute IPF exacerbation, hospitalization, death.
Absolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Cough Domain Score at Week 52The MMRM model is a longitudinal analysis and it incorporated L-PF measurements from baseline (Week -8 to Week -1) and Week 12, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52.The absolute change from baseline in the L-PF Cough domain score at Week 52 is reported. This endpoint was analyzed using a Mixed Model for Repeated Measures (MMRM). The model included fixed effects for treatment, baseline antifibrotic therapy, and baseline L-PF Cough score at each visit, with an unstructured covariance matrix for repeated measures. The Living with Pulmonary Fibrosis (L-PF) questionnaire is a 44-item tool consisting of two modules: Symptoms (23 items) and Impacts (21 items). The Symptoms module yields three domain scores: Dyspnea, Cough, and Fatigue, as well as a Total Symptoms score. Scoring is based on the mean of item ratings within each domain, multiplied by 100. Scores range from 0 to 100, with higher scores indicating greater impairment.
Absolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Fatigue Domain Score at Week 52The MMRM model is a longitudinal analysis and it incorporated L-PF measurements from baseline (Week -8 to Week -1) and Week 12, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52.The absolute change from baseline in the Living with Pulmonary Fibrosis (L-PF) Fatigue domain score at Week 52 is reported. The analysis used a mixed model for repeated measures (MMRM) with fixed categorical effects for treatment, baseline antifibrotic (AF) therapy, and the fixed continuous effect of baseline L-PF score. Covariance was unstructured. Baseline AF therapy was a covariate. The Living with Pulmonary Fibrosis (L-PF) questionnaire is a 44-item tool consisting of two modules: Symptoms (23 items) and Impacts (21 items). The Symptoms module yields three domain scores: Dyspnea, Cough, and Fatigue, as well as a Total Symptoms score. Scoring is based on the mean of item ratings within each domain, multiplied by 100. Scores range from 0 to 100, with higher scores indicating greater impairment.
Absolute Change From Baseline in Forced Vital Capacity Percent Predicted at Week 52The MMRM model is a longitudinal analysis, and it incorporated FVC measurements from baseline (Week -8 to Week -1) and Week 1, Week 2, Week 6, Week 12, Week 18, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52.The absolute change from baseline in Forced Vital Capacity percent predicted at Week 52 is reported. Analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment at each visit, baseline use of antifibrotic therapy at each visit, and the fixed continuous effects of baseline forced vital capacity (FVC) percentage predicted at each visit. An unstructured covariance structure was used to model repeated measures within patients. Baseline use of antifibrotic therapy, as recorded in the concomitant medication case report form (CRF) page, was included as a covariate.
Absolute Change From Baseline in Diffusing Capacity of the Lungs for Carbon Monoxide Percent Predicted at Week 52The MMRM model is a longitudinal analysis and it incorporated DLCO measurements from baseline (Week -8 to Week -1) and Week 12, Week 26, and Week 52. The data represent the Least Squares Mean at Week 52.The absolute change from baseline in Diffusing Capacity of the Lungs for Carbon Monoxide percent predicted at Week 52 is reported. The analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment at each visit, baseline use of antifibrotic therapy at each visit, and the fixed continuous effects of baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted at each visit. An unstructured covariance structure was used to model repeated measures within patients. Baseline use of antifibrotic therapy, as recorded in the concomitant medication case report form (CRF) page, was included as a covariate.
Absolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Dyspnea Domain Score at Week 52The MMRM model is a longitudinal analysis and it incorporated L-PF measurements from baseline (Week -8 to Week -1) and Week 12, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52.The absolute change from baseline in the Living with Pulmonary Fibrosis (L-PF) Symptoms Dyspnea domain score at Week 52 is reported. This endpoint was analyzed using a Mixed Model for Repeated Measures (MMRM). The model included fixed effects for treatment, baseline use of antifibrotic therapy, and baseline dyspnea score at each visit, with an unstructured covariance structure to model repeated measures. The Living with Pulmonary Fibrosis (L-PF) questionnaire is a 44-item tool consisting of two modules: Symptoms (23 items) and Impacts (21 items). The Symptoms module yields three domain scores: Dyspnea, Cough, and Fatigue, as well as a Total Symptoms score. Scoring is based on the mean of item ratings within each domain, multiplied by 100. Scores range from 0 to 100, with higher scores indicating greater impairment.

Countries

Argentina, Australia, Austria, Belgium, Brazil, Canada, Chile, China, Croatia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Japan, Malaysia, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Puerto Rico, Singapore, South Africa, South Korea, Spain, Sweden, Switzerland, Taiwan, Thailand, United Kingdom, United States

Participant flow

Recruitment details

This was a randomized, double-blind, placebo-controlled, multi-centre, Phase III trial evaluating the efficacy, safety, and tolerability of nerandomilast (BI 1015550) 9 mg and 18 mg bid versus placebo in patients with IPF. The trial included two parts: Treatment Period A lasted up to 52 weeks post-randomisation, followed by Treatment Period B with continued blinded treatment for a variable duration beyond 52 weeks.

Pre-assignment details

All participants were screened for eligibility prior to participation in the trial. Participants attended a specialist site which ensured that they (the participants) strictly met all inclusion and none of the exclusion criteria. Participants were not to be allocated to a treatment sequence if any of the entry criteria were violated.

Participants by arm

ArmCount
Placebo
Participants received placebo matching 9 mg or 18 mg nerandomilast orally twice daily, with doses given at least 12 hours apart and each taken with 250 mL of water.
393
Nerandomilast 9 mg BID
Participants received 9 mg film-coated nerandomilast tablets orally twice daily, with doses administered at least 12 hours apart, each taken with 250 mL of water.
392
Nerandomilast 18 mg BID
Participants received 18 mg film-coated nerandomilast tablets orally twice daily, with doses administered at least 12 hours apart, each taken with 250 mL of water.
392
Total1,177

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event525264
Overall StudyLack of Efficacy110
Overall StudyLost to Follow-up101
Overall StudyNo reason stated by the participants232216
Overall StudyProtocol Violation110
Overall StudyWithdrawal by Subject231812

Baseline characteristics

CharacteristicTotalNerandomilast 18 mg BIDNerandomilast 9 mg BIDPlacebo
Age, Continuous70.2 Years
STANDARD_DEVIATION 7.7
70.3 Years
STANDARD_DEVIATION 7.8
70.5 Years
STANDARD_DEVIATION 7.8
69.9 Years
STANDARD_DEVIATION 7.5
Ethnicity (NIH/OMB)
Hispanic or Latino
95 Participants44 Participants23 Participants28 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1082 Participants348 Participants369 Participants365 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Forced Vital Capacity (FVC) at baseline2842.8 Milliliters (mL)
STANDARD_DEVIATION 781.1
2827.3 Milliliters (mL)
STANDARD_DEVIATION 758
2837.2 Milliliters (mL)
STANDARD_DEVIATION 781.4
2863.9 Milliliters (mL)
STANDARD_DEVIATION 804.6
Race (NIH/OMB)
American Indian or Alaska Native
5 Participants2 Participants2 Participants1 Participants
Race (NIH/OMB)
Asian
367 Participants130 Participants121 Participants116 Participants
Race (NIH/OMB)
Black or African American
6 Participants1 Participants3 Participants2 Participants
Race (NIH/OMB)
More than one race
2 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
797 Participants258 Participants266 Participants273 Participants
Sex: Female, Male
Female
200 Participants69 Participants75 Participants56 Participants
Sex: Female, Male
Male
977 Participants323 Participants317 Participants337 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
42 / 39336 / 39226 / 392
other
Total, other adverse events
316 / 393319 / 392337 / 392
serious
Total, serious adverse events
181 / 393159 / 392165 / 392

Outcome results

Primary

Absolute Change From Baseline in Forced Vital Capacity (FVC) [mL] at Week 52

The absolute change from baseline in Forced Vital Capacity (FVC) \[mL\] at Week 52 is reported. The absolute change from baseline in forced vital capacity (FVC) at Week 52 was analyzed using a restricted maximum likelihood (REML)-based mixed model with repeated measures (MMRM). The model included fixed categorical effects of treatment and baseline antifibrotic use at each visit, as well as the continuous effect of baseline FVC. Visit was treated as a repeated measure, with an unstructured covariance structure for within-patient variability.

Time frame: The MMRM model is a longitudinal analysis, and it incorporated FVC measurements from baseline (Week -8 to Week -1) and Week 2, Week 6, Week 12, Week 18, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug. only patients with baseline measurement and at least one post-baseline measurement are included.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboAbsolute Change From Baseline in Forced Vital Capacity (FVC) [mL] at Week 52-183.48 Milliliters (mL)
Nerandomilast 9 mg BIDAbsolute Change From Baseline in Forced Vital Capacity (FVC) [mL] at Week 52-138.60 Milliliters (mL)
Nerandomilast 18 mg BIDAbsolute Change From Baseline in Forced Vital Capacity (FVC) [mL] at Week 52-114.65 Milliliters (mL)
Comparison: Based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment at each visit, baseline use of antifibrotic therapy at each visit, and fixed continuous effects of baseline forced vital capacity (FVC) in milliliters at each visit. Patients were treated as a random effect. Visit was treated as the repeated measure, and an unstructured covariance structure was used to model the within-patient measurements.p-value: 0.022295% CI: [6.44, 83.33]Mixed Models Analysis
Comparison: Based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment at each visit, baseline use of antifibrotic therapy at each visit, and fixed continuous effects of baseline forced vital capacity (FVC) in milliliters at each visit. Patients were treated as a random effect. Visit was treated as the repeated measure, and an unstructured covariance structure was used to model the within-patient measurements.p-value: 0.000595% CI: [30.26, 107.39]Mixed Models Analysis
Secondary

Absolute Change From Baseline in Diffusing Capacity of the Lungs for Carbon Monoxide Percent Predicted at Week 52

The absolute change from baseline in Diffusing Capacity of the Lungs for Carbon Monoxide percent predicted at Week 52 is reported. The analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment at each visit, baseline use of antifibrotic therapy at each visit, and the fixed continuous effects of baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted at each visit. An unstructured covariance structure was used to model repeated measures within patients. Baseline use of antifibrotic therapy, as recorded in the concomitant medication case report form (CRF) page, was included as a covariate.

Time frame: The MMRM model is a longitudinal analysis and it incorporated DLCO measurements from baseline (Week -8 to Week -1) and Week 12, Week 26, and Week 52. The data represent the Least Squares Mean at Week 52.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug. Only patients with baseline measurement and at least one post-baseline measurement are included.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboAbsolute Change From Baseline in Diffusing Capacity of the Lungs for Carbon Monoxide Percent Predicted at Week 52-6.14 DLCO percent predicted
Nerandomilast 9 mg BIDAbsolute Change From Baseline in Diffusing Capacity of the Lungs for Carbon Monoxide Percent Predicted at Week 52-3.66 DLCO percent predicted
Nerandomilast 18 mg BIDAbsolute Change From Baseline in Diffusing Capacity of the Lungs for Carbon Monoxide Percent Predicted at Week 52-4.47 DLCO percent predicted
Comparison: Based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment, baseline use of antifibrotic therapy, and the fixed continuous effects of baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted at each visit. An unstructured covariance structure was used to model repeated measures within patients.~Baseline use of antifibrotic therapy, as recorded in the concomitant medication CRF page, was included as a covariate.p-value: 0.004295% CI: [0.79, 4.19]Mixed Models Analysis
Comparison: Based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment, baseline use of antifibrotic therapy, and the fixed continuous effects of baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted at each visit. An unstructured covariance structure was used to model repeated measures within patients.~Baseline use of antifibrotic therapy, as recorded in the concomitant medication CRF page, was included as a covariate.p-value: 0.05395% CI: [-0.02, 3.37]Mixed Models Analysis
Secondary

Absolute Change From Baseline in Forced Vital Capacity Percent Predicted at Week 52

The absolute change from baseline in Forced Vital Capacity percent predicted at Week 52 is reported. Analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment at each visit, baseline use of antifibrotic therapy at each visit, and the fixed continuous effects of baseline forced vital capacity (FVC) percentage predicted at each visit. An unstructured covariance structure was used to model repeated measures within patients. Baseline use of antifibrotic therapy, as recorded in the concomitant medication case report form (CRF) page, was included as a covariate.

Time frame: The MMRM model is a longitudinal analysis, and it incorporated FVC measurements from baseline (Week -8 to Week -1) and Week 1, Week 2, Week 6, Week 12, Week 18, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug. Only patients with baseline measurement and at least one post-baseline measurement are included.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboAbsolute Change From Baseline in Forced Vital Capacity Percent Predicted at Week 52-4.92 FVC percent predicted
Nerandomilast 9 mg BIDAbsolute Change From Baseline in Forced Vital Capacity Percent Predicted at Week 52-3.75 FVC percent predicted
Nerandomilast 18 mg BIDAbsolute Change From Baseline in Forced Vital Capacity Percent Predicted at Week 52-3.19 FVC percent predicted
Comparison: Analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment, baseline use of antifibrotic therapy, and the fixed continuous effects of baseline forced vital capacity (FVC) percentage predicted at each visit. An unstructured covariance structure was used to model repeated measures within patients.~Baseline use of antifibrotic therapy, as recorded in the concomitant medication case report form (CRF) page, was included as a covariate.p-value: 0.02895% CI: [0.13, 2.22]Mixed Models Analysis
Comparison: Analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed, categorical effects of treatment, baseline use of antifibrotic therapy, and the fixed continuous effects of baseline forced vital capacity (FVC) percentage predicted at each visit. An unstructured covariance structure was used to model repeated measures within patients.~Baseline use of antifibrotic therapy, as recorded in the concomitant medication case report form (CRF) page, was included as a covariate.p-value: 0.001395% CI: [0.68, 2.78]Mixed Models Analysis
Secondary

Absolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Cough Domain Score at Week 52

The absolute change from baseline in the L-PF Cough domain score at Week 52 is reported. This endpoint was analyzed using a Mixed Model for Repeated Measures (MMRM). The model included fixed effects for treatment, baseline antifibrotic therapy, and baseline L-PF Cough score at each visit, with an unstructured covariance matrix for repeated measures. The Living with Pulmonary Fibrosis (L-PF) questionnaire is a 44-item tool consisting of two modules: Symptoms (23 items) and Impacts (21 items). The Symptoms module yields three domain scores: Dyspnea, Cough, and Fatigue, as well as a Total Symptoms score. Scoring is based on the mean of item ratings within each domain, multiplied by 100. Scores range from 0 to 100, with higher scores indicating greater impairment.

Time frame: The MMRM model is a longitudinal analysis and it incorporated L-PF measurements from baseline (Week -8 to Week -1) and Week 12, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug. Only patients with baseline measurement and at least one post-baseline measurement are included.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Cough Domain Score at Week 524.54 Score on a scale
Nerandomilast 9 mg BIDAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Cough Domain Score at Week 524.44 Score on a scale
Nerandomilast 18 mg BIDAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Cough Domain Score at Week 523.95 Score on a scale
Comparison: The analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed categorical effects for treatment group at each visit, baseline use of antifibrotic therapy at each visit, and fixed continuous effects of the baseline Living with Pulmonary Fibrosis (L-PF) Cough domain score at each visit. An unstructured covariance structure modeled repeated measures. Baseline antifibrotic use, recorded in the concomitant medication case report form (CRF), was included as a covariate.p-value: 0.944295% CI: [-2.98, 2.77]Mixed Models Analysis
Comparison: The analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed categorical effects for treatment group at each visit, baseline use of antifibrotic therapy at each visit, and fixed continuous effects of the baseline Living with Pulmonary Fibrosis (L-PF) Cough domain score at each visit. An unstructured covariance structure modeled repeated measures. Baseline antifibrotic use, recorded in the concomitant medication case report form (CRF), was included as a covariate.p-value: 0.686295% CI: [-3.47, 2.28]Mixed Models Analysis
Secondary

Absolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Dyspnea Domain Score at Week 52

The absolute change from baseline in the Living with Pulmonary Fibrosis (L-PF) Symptoms Dyspnea domain score at Week 52 is reported. This endpoint was analyzed using a Mixed Model for Repeated Measures (MMRM). The model included fixed effects for treatment, baseline use of antifibrotic therapy, and baseline dyspnea score at each visit, with an unstructured covariance structure to model repeated measures. The Living with Pulmonary Fibrosis (L-PF) questionnaire is a 44-item tool consisting of two modules: Symptoms (23 items) and Impacts (21 items). The Symptoms module yields three domain scores: Dyspnea, Cough, and Fatigue, as well as a Total Symptoms score. Scoring is based on the mean of item ratings within each domain, multiplied by 100. Scores range from 0 to 100, with higher scores indicating greater impairment.

Time frame: The MMRM model is a longitudinal analysis and it incorporated L-PF measurements from baseline (Week -8 to Week -1) and Week 12, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug. Only patients with baseline measurement and at least one post-baseline measurement are included.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Dyspnea Domain Score at Week 527.26 Score on a scale
Nerandomilast 9 mg BIDAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Dyspnea Domain Score at Week 526.26 Score on a scale
Nerandomilast 18 mg BIDAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Dyspnea Domain Score at Week 526.63 Score on a scale
Comparison: The analysis used a Mixed Model for Repeated Measures (MMRM) with fixed categorical effects for treatment group and baseline antifibrotic therapy at each visit, and fixed continuous effects of baseline Living with Pulmonary Fibrosis (L-PF) Dyspnea domain score. An unstructured covariance structure accounted for within-patient correlations. Baseline antifibrotic use, as recorded in the concomitant medication case report form (CRF), was included as a covariate.p-value: 0.369795% CI: [-3.2, 1.19]Mixed Models Analysis
Comparison: The analysis used a Mixed Model for Repeated Measures (MMRM) with fixed categorical effects for treatment group and baseline antifibrotic therapy at each visit, and fixed continuous effects of baseline Living with Pulmonary Fibrosis (L-PF) Dyspnea domain score. An unstructured covariance structure accounted for within-patient correlations. Baseline antifibrotic use, as recorded in the concomitant medication case report form (CRF), was included as a covariate.p-value: 0.573495% CI: [-2.83, 1.57]Mixed Models Analysis
Secondary

Absolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Fatigue Domain Score at Week 52

The absolute change from baseline in the Living with Pulmonary Fibrosis (L-PF) Fatigue domain score at Week 52 is reported. The analysis used a mixed model for repeated measures (MMRM) with fixed categorical effects for treatment, baseline antifibrotic (AF) therapy, and the fixed continuous effect of baseline L-PF score. Covariance was unstructured. Baseline AF therapy was a covariate. The Living with Pulmonary Fibrosis (L-PF) questionnaire is a 44-item tool consisting of two modules: Symptoms (23 items) and Impacts (21 items). The Symptoms module yields three domain scores: Dyspnea, Cough, and Fatigue, as well as a Total Symptoms score. Scoring is based on the mean of item ratings within each domain, multiplied by 100. Scores range from 0 to 100, with higher scores indicating greater impairment.

Time frame: The MMRM model is a longitudinal analysis and it incorporated L-PF measurements from baseline (Week -8 to Week -1) and Week 12, Week 26, Week 36, Week 44 and Week 52. The data represent the Least Squares Mean at Week 52.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug. Only patients with baseline measurement and at least one post-baseline measurement are included.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Fatigue Domain Score at Week 525.40 Score on a scale
Nerandomilast 9 mg BIDAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Fatigue Domain Score at Week 525.59 Score on a scale
Nerandomilast 18 mg BIDAbsolute Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Symptoms Fatigue Domain Score at Week 525.82 Score on a scale
Comparison: The analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed categorical effects for treatment group at each visit, baseline use of antifibrotic therapy at each visit, and fixed continuous effects of the baseline Living with Pulmonary Fibrosis (L-PF) Fatigue domain score at each visit. An unstructured covariance structure modeled repeated measures. Baseline antifibrotic use, recorded in the concomitant medication case report form (CRF), was included as a covariate.p-value: 0.875995% CI: [-2.25, 2.63]Mixed Models Analysis
Comparison: The analysis was based on a Mixed Model for Repeated Measures (MMRM), which included fixed categorical effects for treatment group at each visit, baseline use of antifibrotic therapy at each visit, and fixed continuous effects of the baseline Living with Pulmonary Fibrosis (L-PF) Fatigue domain score at each visit. An unstructured covariance structure modeled repeated measures. Baseline antifibrotic use, recorded in the concomitant medication case report form (CRF), was included as a covariate.p-value: 0.73295% CI: [-2.02, 2.87]Mixed Models Analysis
Secondary

Key Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the Trial

Time to the first occurrence of any component of the composite endpoint-acute IPF exacerbation, hospitalization for a respiratory cause, or death (whichever occurred first)-is reported as the number of participants who experienced one or more of these events during the trial. Acute IPF is defined as an acute, clinically significant respiratory deterioration characterized by evidence of new, widespread alveolar abnormality, with all of the following: Acute worsening or development of dyspnea, typically of less than 1 month's duration. Computed tomography showing new bilateral ground-glass opacity and/or consolidation superimposed on a background pattern consistent with IPF. Deterioration not fully explained by cardiac failure or fluid overload. If more than one component occurred on the same day, the patient was counted under the first event according to the following hierarchy: acute IPF exacerbation, hospitalization, death.

Time frame: From first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialHospitalisation for respiratory cause as the first event49 Participants
PlaceboKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialAcute IPF exacerbation as the first event38 Participants
PlaceboKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialDeath as the first event16 Participants
Nerandomilast 9 mg BIDKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialHospitalisation for respiratory cause as the first event45 Participants
Nerandomilast 9 mg BIDKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialAcute IPF exacerbation as the first event32 Participants
Nerandomilast 9 mg BIDKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialDeath as the first event13 Participants
Nerandomilast 18 mg BIDKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialAcute IPF exacerbation as the first event38 Participants
Nerandomilast 18 mg BIDKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialDeath as the first event8 Participants
Nerandomilast 18 mg BIDKey Secondary Endpoint: Time to the First Occurrence of Any of the Components of the Composite Endpoint: Time to First Acute IPF Exacerbation, First Hospitalization for Respiratory Cause, or Death (Whichever Occurs First) Over the Duration of the TrialHospitalisation for respiratory cause as the first event47 Participants
Comparison: The hazard ratio (HR) was estimated using a Cox proportional hazards model with treatment group, baseline antifibrotic therapy use, age (continuous), baseline FVC % predicted, and baseline DLCO % predicted (hemoglobin-corrected) as covariates. Breslow's method was applied for tied event times. A two-sided p-value from the Wald test assessed the treatment effect. P-values were not adjusted for multiplicity.p-value: 0.544395% CI: [0.69, 1.22]Regression, Cox
Comparison: Based on Cox proportional hazards model including treatment, baseline antifibrotic therapy, age, baseline Forced Vital Capacity (FVC) percent predicted, and baseline Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) percent predicted (corrected for haemoglobin) as covariates. p-values not adjusted for multiplicity.p-value: 0.951295% CI: [0.75, 1.31]Regression, Cox
Secondary

Time to Absolute Decline in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Percentage Predicted by More Than 15% From Baseline or Death, Measured Over the Duration of the Trial

The time to absolute decline of more than 15% from baseline in diffusing capacity of the lungs for carbon monoxide (DLCO) percent predicted, or death, over the duration of the trial is reported as the number of participants who experienced either event. Predicted DLCO value was corrected for hemoglobin (Hb). If more than one component occurred on the same day, the patient was counted under the first event according to the hierarchy: Absolute decline in DLCO % predicted of \> 15%, followed by Death.

Time frame: From first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboTime to Absolute Decline in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Percentage Predicted by More Than 15% From Baseline or Death, Measured Over the Duration of the TrialAbsolute decline in DLCO % predicted of > 15%38 Participants
PlaceboTime to Absolute Decline in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Percentage Predicted by More Than 15% From Baseline or Death, Measured Over the Duration of the TrialDeath28 Participants
Nerandomilast 9 mg BIDTime to Absolute Decline in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Percentage Predicted by More Than 15% From Baseline or Death, Measured Over the Duration of the TrialAbsolute decline in DLCO % predicted of > 15%35 Participants
Nerandomilast 9 mg BIDTime to Absolute Decline in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Percentage Predicted by More Than 15% From Baseline or Death, Measured Over the Duration of the TrialDeath24 Participants
Nerandomilast 18 mg BIDTime to Absolute Decline in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Percentage Predicted by More Than 15% From Baseline or Death, Measured Over the Duration of the TrialAbsolute decline in DLCO % predicted of > 15%43 Participants
Nerandomilast 18 mg BIDTime to Absolute Decline in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Percentage Predicted by More Than 15% From Baseline or Death, Measured Over the Duration of the TrialDeath16 Participants
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.925195% CI: [0.69, 1.41]Regression, Cox
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.498895% CI: [0.62, 1.26]Regression, Cox
Secondary

Time to Absolute Decline in Forced Vital Capacity (FVC) % Predicted of >10% From Baseline or Death Over the Duration of the Trial

The time to absolute decline of more than 10% from baseline in forced vital capacity (FVC) percent predicted, or death, over the duration of the trial is reported as the number of participants who experienced either event. If more than one component occurred on the same day, the patient was counted under the first event according to the hierarchy; Absolute decline in FVC % predicted of \> 10% followed by death.

Time frame: From first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboTime to Absolute Decline in Forced Vital Capacity (FVC) % Predicted of >10% From Baseline or Death Over the Duration of the TrialAbsolute decline in FVC % predicted of > 10%91 Participants
PlaceboTime to Absolute Decline in Forced Vital Capacity (FVC) % Predicted of >10% From Baseline or Death Over the Duration of the TrialDeath20 Participants
Nerandomilast 9 mg BIDTime to Absolute Decline in Forced Vital Capacity (FVC) % Predicted of >10% From Baseline or Death Over the Duration of the TrialAbsolute decline in FVC % predicted of > 10%89 Participants
Nerandomilast 9 mg BIDTime to Absolute Decline in Forced Vital Capacity (FVC) % Predicted of >10% From Baseline or Death Over the Duration of the TrialDeath18 Participants
Nerandomilast 18 mg BIDTime to Absolute Decline in Forced Vital Capacity (FVC) % Predicted of >10% From Baseline or Death Over the Duration of the TrialAbsolute decline in FVC % predicted of > 10%80 Participants
Nerandomilast 18 mg BIDTime to Absolute Decline in Forced Vital Capacity (FVC) % Predicted of >10% From Baseline or Death Over the Duration of the TrialDeath14 Participants
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.769595% CI: [0.74, 1.25]Regression, Cox
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.206895% CI: [0.64, 1.1]Regression, Cox
Secondary

Time to Death Over the Duration of the Trial

Time to death over the duration of the trial is reported as the number of participants who died. Time to death will be based either on the date of death on the AE report for patients with AEs leading to death or will be based on the information from the vital status assessment.

Time frame: From first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
PlaceboTime to Death Over the Duration of the Trial28 Participants
Nerandomilast 9 mg BIDTime to Death Over the Duration of the Trial26 Participants
Nerandomilast 18 mg BIDTime to Death Over the Duration of the Trial21 Participants
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.908495% CI: [0.6, 1.76]Regression, Cox
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.468295% CI: [0.46, 1.43]Regression, Cox
Secondary

Time to First Acute IPF Exacerbation or Death Over the Duration of the Trial

The time to first acute IPF exacerbation or death during the trial is reported as the number of participants who experienced either event. Acute IPF is defined as an acute, clinically significant respiratory deterioration characterized by evidence of new, widespread alveolar abnormality, with all of the following: Acute worsening or development of dyspnea, typically of less than 1 month's duration. Computed tomography showing new bilateral ground-glass opacity and/or consolidation superimposed on a background pattern consistent with IPF. Deterioration not fully explained by cardiac failure or fluid overload. If more than one component occurred on the same day, the patient was counted under the first event according to the following hierarchy: acute IPF exacerbation followed by death.

Time frame: From first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboTime to First Acute IPF Exacerbation or Death Over the Duration of the TrialAcute IPF exacerbation30 Participants
PlaceboTime to First Acute IPF Exacerbation or Death Over the Duration of the TrialDeath19 Participants
Nerandomilast 9 mg BIDTime to First Acute IPF Exacerbation or Death Over the Duration of the TrialAcute IPF exacerbation31 Participants
Nerandomilast 9 mg BIDTime to First Acute IPF Exacerbation or Death Over the Duration of the TrialDeath20 Participants
Nerandomilast 18 mg BIDTime to First Acute IPF Exacerbation or Death Over the Duration of the TrialAcute IPF exacerbation38 Participants
Nerandomilast 18 mg BIDTime to First Acute IPF Exacerbation or Death Over the Duration of the TrialDeath12 Participants
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.558395% CI: [0.76, 1.67]Regression, Cox
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.589695% CI: [0.75, 1.65]Regression, Cox
Secondary

Time to Hospitalization for Respiratory Cause or Death Over the Duration of the Trial

Time to hospitalization for respiratory cause or death over the duration of the trial is reported as the number of participants who experienced either event. Hospitalizations due to respiratory causes were recorded on a specific non-elective hospitalization CRF page. This page captured the hospitalization date, confirmation of a respiratory cause, and the primary admission diagnosis. If more than one component occurred on the same day, the patient was counted under the first event according to the hierarchy: hospitalization for respiratory cause, followed by death.

Time frame: From first administration of any trial drug (Nerandomilast or Placebo) up to 22.9 months.

Population: Full Analysis Set (FAS): This patient set includes all randomized patients who received at least one dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboTime to Hospitalization for Respiratory Cause or Death Over the Duration of the TrialHospitalization for respiratory cause59 Participants
PlaceboTime to Hospitalization for Respiratory Cause or Death Over the Duration of the TrialDeath14 Participants
Nerandomilast 9 mg BIDTime to Hospitalization for Respiratory Cause or Death Over the Duration of the TrialHospitalization for respiratory cause57 Participants
Nerandomilast 9 mg BIDTime to Hospitalization for Respiratory Cause or Death Over the Duration of the TrialDeath11 Participants
Nerandomilast 18 mg BIDTime to Hospitalization for Respiratory Cause or Death Over the Duration of the TrialHospitalization for respiratory cause68 Participants
Nerandomilast 18 mg BIDTime to Hospitalization for Respiratory Cause or Death Over the Duration of the TrialDeath7 Participants
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.903895% CI: [0.7, 1.36]Regression, Cox
Comparison: Analysis was performed using a Cox proportional hazards regression model that included baseline use of antifibrotic therapy (antifibrotic group vs non-antifibrotic group), age, baseline forced vital capacity (FVC) percentage predicted, baseline diffusing capacity of the lungs for carbon monoxide (DLCO) percentage predicted (corrected for hemoglobin levels), and treatment group as covariates.p-value: 0.468795% CI: [0.82, 1.56]Regression, Cox

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026