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A Clinical Study to Test How Effective and Safe GLPG1690 is for Participants With Idiopathic Pulmonary Fibrosis (IPF) When Used Together With Standard of Care

A Phase 3, Randomized, Double-blind, Parallel-group, Placebo-controlled, Multi-center Study to Evaluate the Efficacy and Safety of Two Doses of GLPG1690 in Addition to Local Standard of Care for Minimum 52 Weeks in Subjects With Idiopathic Pulmonary Fibrosis

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03733444
Acronym
ISABELA2
Enrollment
781
Registered
2018-11-07
Start date
2018-11-05
Completion date
2021-03-30
Last updated
2022-07-29

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 main purpose of this study was to see how GLPG1690 works together with the current standard treatment on your lung function and IPF disease in general. The study also investigated how well GLPG1690 is tolerated (for example if you get any side effects while on study drug).

Interventions

GLPG1690, film-coated tablets for oral use.

DRUGPlacebo

Matching placebo, film-coated tablets for oral use.

Sponsors

Galapagos NV
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

* Male or female subject aged ≥40 years on the day of signing the Informed Consent Form (ICF). * A diagnosis of IPF within 5 years prior to the screening visit, as per applicable American Thoracic Society (ATS)/European Respiratory Society (ERS)/Japanese Respiratory Society (JRS)/Latin American Thoracic Association (ALAT) guidelines at the time of diagnosis. * Chest high-resolution computed tomography (HRCT) historically performed within 12 months prior to the screening visit and according to the minimum requirements for IPF diagnosis by central review based on subject's HRCT only (if no lung biopsy (LB) available), or based on both HRCT and LB (with application of the different criteria in either situation). If an evaluable HRCT \<12 months prior to screening is not available, an HRCT can be performed at screening to determine eligibility, according to the same requirements as the historical HRCT. * Subjects receiving local standard of care for the treatment of IPF, defined as either pirfenidone or nintedanib, at a stable dose for at least two months before screening, and during screening; or neither pirfenidone or nintedanib (for any reason). A stable dose is defined as the highest dose tolerated by the subject during those two months. * The extent of fibrotic changes is greater than the extent of emphysema on the most recent HRCT scan (investigator-determined). * Meeting all of the following criteria during the screening period: FVC ≥45% predicted of normal, Forced expiratory volume in 1 second (FEV1)/FVC ≥0.7, diffusing capacity of the lung for carbon monoxide (DLCO) corrected for Hb ≥30% predicted of normal. * Estimated minimum life expectancy of at least 30 months for non IPF related disease in the opinion of the investigator. * Male subjects and female subjects of childbearing potential agree to use highly effective contraception/preventive exposure measures from the time of first dose of investigational medicinal product (IMP) (for the male subject) or the signing of the ICF (for the female subject), during the study, and until 90 days (male) or 30 days (female) after the last dose of IMP. * Able to walk at least 150 meters during the 6-Minute Walk Test (6MWT) at screening Visit 1; without having a contraindication to perform the 6MWT or without a condition putting the subject at risk of falling during the test (investigator's discretion). The use of a cane is allowed, the use of a stroller is not allowed at all for any condition. At Visit 2, for the oxygen titration test, resting oxygen saturation (SpO2) should be ≥88% with maximum 6 L O2/minute; during the walk, SpO2 should be ≥83% with 6 L O2/minute or ≥88% with 0, 2 or 4 L O2/minute.

Exclusion criteria

* History of malignancy within the past 5 years (except for carcinoma in situ of the uterine cervix, basal cell carcinoma of the skin that has been treated with no evidence of recurrence, prostate cancer that has been medically managed through active surveillance or watchful waiting, squamous cell carcinoma of the skin if fully resected, and Ductal Carcinoma In Situ). * Clinically significant abnormalities detected on ECG of either rhythm or conduction, a QT interval corrected for heart rate using Fridericia's formula (QTcF) \>450 ms, or a known long QT syndrome. Patients with implantable cardiovascular devices (e.g. pacemaker) affecting the QT interval time may be enrolled in the study based upon investigator judgment following cardiologist consultation if deemed necessary, and only after discussion with the medical monitor. * Acute IPF exacerbation within 6 months prior to screening and/or during the screening period. The definition of an acute IPF exacerbation is as follows: Previous or concurrent diagnosis of IPF; Acute worsening or development of dyspnea typically \< 1 month duration; Computed tomography with new bilateral ground-glass opacity and/or consolidation superimposed on a background pattern consistent with usual interstitial pneumonia pattern and deterioration not fully explained by cardiac failure or fluid overload. * Lower respiratory tract infection requiring treatment within 4 weeks prior to screening and/or during the screening period. * Interstitial lung disease associated with known primary diseases (e.g. sarcoidosis and amyloidosis), exposures (e.g. radiation, silica, asbestos, and coal dust), or drugs (e.g. amiodarone). * Diagnosis of severe pulmonary hypertension (investigator determined). * Unstable cardiovascular, pulmonary (other than IPF), or other disease within 6 months prior to screening or during the screening period (e.g. acute coronary disease, heart failure, and stroke). * Had gastric perforation within 3 months prior to screening or during screening, and/or underwent major surgery within 3 months prior to screening, during screening or have major surgery planned during the study period. * History of nintedanib-related increase in ALT and/or AST of \>5 x upper limit of the normal range (ULN) and increased susceptibility to elevated LFT; moderate to severe hepatic impairment (Child-Pugh B or C) and/or abnormal liver function test (LFT) at screening, defined as aspartate aminotransferase (AST), and/or alanine aminotransferase (ALT), and/or total bilirubin ≥1.5 x upper limit of the normal range (ULN), and/or gamma glutamyl transferase (GGT) ≥3 x ULN. Retesting is allowed once for abnormal LFT. * Abnormal renal function defined as estimated creatinine clearance, calculated according to Cockcroft-Gault calculation (CCr) \<30 mL/min. Retesting is allowed once. * Use of any of the following therapies within 4 weeks prior to screening and during the screening period, or planned during the study: warfarin, imatinib, ambrisentan, azathioprine, cyclophosphamide, cyclosporine A, bosentan, methotrexate, sildenafil (except for occasional use), prednisone at steady dose \>10 mg/day or equivalent.

Design outcomes

Primary

MeasureTime frameDescription
Annual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52Baseline up to week 52FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Secondary

MeasureTime frameDescription
Percentage of Participants With Respiratory-Related Hospitalization Until End of Study (EoS)Up to EoS (week 125)Percentage of participants with respiratory related to hospitalization were reported in this measure.
Change From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 52Baseline, week 52SGRQ is a 50-item paper questionnaire designed to measure and quantify the impact of chronic respiratory disease on health-related quality of life (QOL) and well-being, split into 3 domains: symptoms score assessing the frequency and severity of respiratory symptoms (Items 1-8), activity score assessing the effects of breathlessness on mobility and physical activity (Items 11-17 and 36 to 44), and impacts score assessing the psychosocial impact of the disease (Items 9-10, 18-35 and 45-50). Each item has a specific weight. Domain scores = 100 \* summed weights from positive items in that component/sum of maximum weights for all non-missing items in that component Total score = 100 \* summed weights from positive items in the questionnaire/sum of maximum weights for all non-missing items in the questionnaire Scores were weighted such that each domain score ranged from 0 to 100 and the total score ranged from 0 to 100, with higher scores indicating the poorer health-related QOL.
Annual Rate of Decline of FVC Until EoSBaseline up to EoS (week 125)FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percentage of Participants With Disease Progression Until EoSUp to EoS (week 125)Disease progression was defined as the composite occurrence of \>=10% absolute decline in percent predicted %FVC or all-cause mortality. FVC (in mL\]) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Change From Baseline in St. George's Respiratory Questionnaire (SGRQ) Total Score at Week 100Baseline, week 100SGRQ is a 50-item paper questionnaire designed to measure and quantify the impact of chronic respiratory disease on health-related quality of life (QOL) and well-being, split into 3 domains: symptoms score assessing the frequency and severity of respiratory symptoms (Items 1-8), activity score assessing the effects of breathlessness on mobility and physical activity (Items 11-17 and 36 to 44), and impacts score assessing the psychosocial impact of the disease (Items 9-10, 18-35 and 45-50). Each item has a specific weight. Domain scores = 100 \* summed weights from positive items in that component/sum of maximum weights for all non-missing items in that component Total score = 100 \* summed weights from positive items in the questionnaire/sum of maximum weights for all non-missing items in the questionnaire Scores were weighted such that each domain score ranged from 0 to 100 and the total score ranged from 0 to 100, with higher scores indicating the poorer health-related QOL.
Percentage of Participants With All Cause Hospitalization Until EoSUp to EoS (week 125)Percentage of participants with all cause hospitalization was reported for this measure.
Percentage of Participants With Respiratory Related Mortality Until EoSUp to EoS (week 125)Percentage of participants with respiratory related mortality until end of study were reported for this study.
Percentage of Participants Hospitalized for Non-Elective Lung Transplant Until EoSUp to EoS (week 125)Percentage of Participants who were hospitalized for lung transplant were reported for this measure.
Change From Baseline in FVC at Week 100Baseline, week 100FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percent Change From Baseline in FVC at Week 100Baseline, week 100FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoSUp to EoS (week 125)Percentage of participants with acute IPF exacerbation until end of study were reported for this measure.
Percentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoSUp to EoS (week 125)Percentage of participants with all-cause mortality or hospitalization for non-elective lung transplant were reported for this measure.
Percentage of Participants With All Cause Mortality, Hospitalization for Non-elective Lung Transplant or Hospitalization for Qualifying for Lung Transplant Until EoSUp to EoS (week 125)Percentage of participants with all-cause mortality or hospitalization for qualifying for lung transplant were reported for this measure.
Percentage of Participants With All-Cause Mortality or Hospitalization That Meets >=10% Absolute Decline in %FVC or Respiratory-Related Hospitalization Until EoSUp to EoS (week 125)Percentage of participants with all-cause mortality or respiratory related hospitalization that meets \>=10% absolute decline in %FVC or respiratory-related hospitalization were reported for this measure.
Percentage of Participants With All-Cause Mortality or Respiratory-Related Hospitalizations Until EoSUp to EoS (week 125)Percentage of participants with all-cause mortality or respiratory related hospitalization were reported for this measure.
FVC at Week 52Week 52FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percentage of Participants With Disease Progression Up to 52 WeeksUp to week 52Disease progression was defined as the composite occurrence of more than or equal to (\>=)10 percent (%) absolute decline in percent predicted forced vital capacity (%FVC) or all-cause mortality. FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percent Change From Baseline in FVC at Week 52Baseline, week 52FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
FVC at Week 100Week 100FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤5Baseline, week 52FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤5Baseline, week 100FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤10Baseline, week 52FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤10Baseline, week 100FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.
Percentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsBaseline up to EoS (up to Week 125)Safety was assessed by adverse events (AEs), which included abnormalities identified during a medical test (e.g. laboratory tests, vital signs, electrocardiogram, etc.) if the abnormality induced clinical signs or symptoms, needed active intervention, interruption or discontinuation of study drug or was clinically significant. A Treatment emergent AE (TEAE) was defined as any AE that started or worsened after the first dose of study drug up to 30 days after the last dose of study drug. AEs were considered serious (SAEs) if the AE resulted in death, was life-threatening, resulted in persistent or significant disability/incapacity or substantial disruption of the ability to conduct normal life functions, resulted in congenital anomaly, or birth defect or required inpatient hospitalization or led to prolongation of hospitalization.
Changes From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Baseline, week 52, week 100Cough was evaluated using the LCQ. The LCQ is a 19-item questionnaire split into three domains: physical, psychological, and social. Scores were calculated by domain (range from 1 to 7) and then the total score was calculated by adding the individual domain score. Total score ranged from 3 to 21, with higher scores indicated a better health status.
Changes From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Baseline, week 52, week 100Cough was assessed using VAS score, ranged from 0 (no cough) to 100 millimeter (mm) (worst possible cough).
Change From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Baseline, week 52, week 100Urge to Cough was assessed using VAS score, ranged from 0 (no urge to cough) to 100 mm (highest urge to cough).
Changes From Baseline in EuroQOL 5-Dimensions Questionnaire at Week 52 and Week 100Baseline, week 52, week 100EuroQol outcome measurements was a printed 20 centimeter (cm) EQ visual analogue scale (EQ VAS) that appears somewhat like a thermometer, on which a score from 0 (worst imaginable health state or death) to 100 (best imaginable health state) was marked by the participant (or, when necessary, their proxy) with the scale in view.
Changes From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Baseline, week 52, week 100The King's Brief Interstitial Lung Disease questionnaire (K-BILD) was specifically developed to analyze the health status of participants with OLD, the questionnaire consists of of 15 items (assessed by participants on scale ranging from 1 to 7, where 1 and 7 represents worst and best health status). Items are compiled into 3 domains: breathlessness and activities (range: 0-21), psychological (range: 0-34), and chest symptoms (range: 0-8). To score the K-BILD, the Likert response scale weightings for individual items are combined and scores are transformed to a range of 0-100 by using logit values (higher scores indicate better health status).
Area Under The Concentration Time Curve of ZiritaxtestatSparse samples collected on day 1 pre-dose, day 85 post-dose, day 237 post-dose, day 183 pre-dose, day 365 pre-doseArea under the concentration time curve of ziritaxtestat was reported
Maximum Observed Plasma Concentration (Cmax) of ZiritaxtestatSparse samples collected on day 1 pre-dose, day 85 post-dose, day 237 post-dose, day 183 pre-dose, day 365 pre-doseMaximum Observed Plasma Concentration of Ziritaxtestat was reported.
Change From Baseline in Functional Exercise Capacity, Assessed by The 6-Minute Walk Test (6MWT) Distance, at Week 52 and Week 100Baseline, week 52, week 100The 6MWT depicts the total distance covered by a participant during 6 minutes walking.
Change From Baseline in Diffusing Capacity of Lung for Carbon Monoxide (DLCO) (Corrected for Hemoglobin [Hb]) at Week 52 and Week 100Baseline, week 52 and week 100Change from baseline in diffusing capacity of the lung for carbon monoxide (percent predicted hemoglobin level corrected) was reported for this measure. mmol/min/kPa: Millimole per minute per kilopascal
Change From Baseline in FVC at Week 52Baseline, week 52FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Countries

Argentina, Canada, France, Germany, Hungary, Israel, Italy, Japan, Mexico, Netherlands, New Zealand, Poland, South Africa, South Korea, United States

Participant flow

Recruitment details

Participants with a centrally confirmed diagnosis of idiopathic pulmonary fibrosis (IPF) were enrolled at 121 sites.

Pre-assignment details

A total of 1431 participants were screened for the study, and 781 were randomized and 777 were treated.

Participants by arm

ArmCount
GLPG1690, 600 mg
Participants received GLPG1690 (ziritaxestat) 600 mg as film-coated tablet orally, once daily (mean treatment duration was 332.9 days). Standard of care included either pirfenidone or nintedanib at a stable dose for at least 2 months before screening, and during screening; or neither pirfenidone or nintedanib (for any reason).
259
GLPG1690, 200 mg
Participants received GLPG1690 (ziritaxestat) 200 mg as film-coated tablet orally, once daily (mean treatment duration was 336.9 days). Standard of care included either pirfenidone or nintedanib at a stable dose for at least 2 months before screening, and during screening; or neither pirfenidone or nintedanib (for any reason).
260
Placebo
Participants received GLPG1690 (ziritaxestat) matching placebo tablets orally, once daily (mean treatment duration was 346.2 days). Standard of care included either pirfenidone or nintedanib at a stable dose for at least 2 months before screening, and during screening; or neither pirfenidone or nintedanib (for any reason).
258
Total777

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event8105
Overall StudyDeath201911
Overall StudyLack of Efficacy011
Overall StudyLost to Follow-up301
Overall StudyMiscellaneous101
Overall StudyNot Treated121
Overall StudyPhysician Decision210
Overall StudyProtocol Specified Withdrawal Criteria Met112
Overall StudyProtocol Violation210
Overall StudyStudy Terminated by Sponsor203209221
Overall StudyWithdrawal by Subject191816

Baseline characteristics

CharacteristicGLPG1690, 600 mgGLPG1690, 200 mgPlaceboTotal
Age, Continuous69.2 years
STANDARD_DEVIATION 7.2
69.7 years
STANDARD_DEVIATION 7.3
70.6 years
STANDARD_DEVIATION 6.6
69.8 years
STANDARD_DEVIATION 7.1
Ethnicity (NIH/OMB)
Hispanic or Latino
32 Participants34 Participants28 Participants94 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
217 Participants215 Participants218 Participants650 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
10 Participants11 Participants12 Participants33 Participants
Forced Vital Capacity2775.66 Milliliter (mL)
STANDARD_DEVIATION 823.17
2768.63 Milliliter (mL)
STANDARD_DEVIATION 701.9
2749.54 Milliliter (mL)
STANDARD_DEVIATION 785.1
2764.67 Milliliter (mL)
STANDARD_DEVIATION 770.66
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants1 Participants2 Participants5 Participants
Race (NIH/OMB)
Asian
72 Participants72 Participants68 Participants212 Participants
Race (NIH/OMB)
Black or African American
2 Participants0 Participants1 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants2 Participants3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants1 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
8 Participants8 Participants6 Participants22 Participants
Race (NIH/OMB)
White
174 Participants178 Participants178 Participants530 Participants
Sex: Female, Male
Female
50 Participants47 Participants49 Participants146 Participants
Sex: Female, Male
Male
209 Participants213 Participants209 Participants631 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
12 / 25823 / 25921 / 260
other
Total, other adverse events
117 / 258141 / 259134 / 260
serious
Total, serious adverse events
42 / 25864 / 25963 / 260

Outcome results

Primary

Annual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline up to week 52

Population: Full Analysis Set

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
GLPG1690, 600 mgAnnual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52-173.8 mL/yearStandard Error 18.04
GLPG1690, 200 mgAnnual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52-174.9 mL/yearStandard Error 17.65
PlaceboAnnual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52-176.6 mL/yearStandard Error 17.74
p-value: 0.912395% CI: [-46.9, 52.4]Coefficient Regression Model
p-value: 0.945695% CI: [-47.4, 50.8]Coefficient Regression Model
Secondary

Annual Rate of Decline of FVC Until EoS

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
GLPG1690, 600 mgAnnual Rate of Decline of FVC Until EoS-179.5 mL/yearStandard Error 15.96
GLPG1690, 200 mgAnnual Rate of Decline of FVC Until EoS-174.4 mL/yearStandard Error 15.63
PlaceboAnnual Rate of Decline of FVC Until EoS-182.4 mL/yearStandard Error 15.72
95% CI: [-41.1, 46.8]
95% CI: [-35.5, 51.5]
Secondary

Area Under The Concentration Time Curve of Ziritaxtestat

Area under the concentration time curve of ziritaxtestat was reported

Time frame: Sparse samples collected on day 1 pre-dose, day 85 post-dose, day 237 post-dose, day 183 pre-dose, day 365 pre-dose

Population: Pharmacokinetic Analysis Set: All randomized participants who received at least one dose of IP and for whom evaluable PK data were available.

ArmMeasureValue (MEDIAN)
GLPG1690, 600 mgArea Under The Concentration Time Curve of Ziritaxtestat12058 Nanogram * milliliter per hour (ng*mL/h)
GLPG1690, 200 mgArea Under The Concentration Time Curve of Ziritaxtestat43640 Nanogram * milliliter per hour (ng*mL/h)
PlaceboArea Under The Concentration Time Curve of Ziritaxtestat8006 Nanogram * milliliter per hour (ng*mL/h)
GLPG1690 600 mg/NintedanibArea Under The Concentration Time Curve of Ziritaxtestat36135 Nanogram * milliliter per hour (ng*mL/h)
GLPG1690 200 mg/PirfenidoneArea Under The Concentration Time Curve of Ziritaxtestat6570 Nanogram * milliliter per hour (ng*mL/h)
GLPG1690 600 mg/PirfenidoneArea Under The Concentration Time Curve of Ziritaxtestat24777 Nanogram * milliliter per hour (ng*mL/h)
Secondary

Change From Baseline in Diffusing Capacity of Lung for Carbon Monoxide (DLCO) (Corrected for Hemoglobin [Hb]) at Week 52 and Week 100

Change from baseline in diffusing capacity of the lung for carbon monoxide (percent predicted hemoglobin level corrected) was reported for this measure. mmol/min/kPa: Millimole per minute per kilopascal

Time frame: Baseline, week 52 and week 100

Population: FAS with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690, 600 mgChange From Baseline in Diffusing Capacity of Lung for Carbon Monoxide (DLCO) (Corrected for Hemoglobin [Hb]) at Week 52 and Week 100Change at week 52-0.307 mmol/min/kPaStandard Error 0.1004
GLPG1690, 200 mgChange From Baseline in Diffusing Capacity of Lung for Carbon Monoxide (DLCO) (Corrected for Hemoglobin [Hb]) at Week 52 and Week 100Change at week 52-0.247 mmol/min/kPaStandard Error 0.1019
PlaceboChange From Baseline in Diffusing Capacity of Lung for Carbon Monoxide (DLCO) (Corrected for Hemoglobin [Hb]) at Week 52 and Week 100Change at week 52-0.394 mmol/min/kPaStandard Error 0.1104
PlaceboChange From Baseline in Diffusing Capacity of Lung for Carbon Monoxide (DLCO) (Corrected for Hemoglobin [Hb]) at Week 52 and Week 100Change at week 100-1.323 mmol/min/kPa
Secondary

Change From Baseline in Functional Exercise Capacity, Assessed by The 6-Minute Walk Test (6MWT) Distance, at Week 52 and Week 100

The 6MWT depicts the total distance covered by a participant during 6 minutes walking.

Time frame: Baseline, week 52, week 100

Population: FAS with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690, 600 mgChange From Baseline in Functional Exercise Capacity, Assessed by The 6-Minute Walk Test (6MWT) Distance, at Week 52 and Week 100Change at Week 52-14.47 MeterStandard Error 6.61
GLPG1690, 200 mgChange From Baseline in Functional Exercise Capacity, Assessed by The 6-Minute Walk Test (6MWT) Distance, at Week 52 and Week 100Change at Week 52-36.33 MeterStandard Error 15.383
PlaceboChange From Baseline in Functional Exercise Capacity, Assessed by The 6-Minute Walk Test (6MWT) Distance, at Week 52 and Week 100Change at Week 52-22.58 MeterStandard Error 6.128
PlaceboChange From Baseline in Functional Exercise Capacity, Assessed by The 6-Minute Walk Test (6MWT) Distance, at Week 52 and Week 100Change at Week 100-3.00 Meter
Secondary

Change From Baseline in FVC at Week 100

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline, week 100

Population: FAS with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690, 600 mgChange From Baseline in FVC at Week 100-328.58 mLStandard Error 123.456
GLPG1690, 200 mgChange From Baseline in FVC at Week 100134.0 mLStandard Error 3
PlaceboChange From Baseline in FVC at Week 100-93.64 mLStandard Error 321.208
Secondary

Change From Baseline in FVC at Week 52

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline, week 52

Population: FAS with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690, 600 mgChange From Baseline in FVC at Week 52-153.78 mLStandard Error 21.291
GLPG1690, 200 mgChange From Baseline in FVC at Week 52-156.34 mLStandard Error 17.41
PlaceboChange From Baseline in FVC at Week 52-177.39 mLStandard Error 21.349
Secondary

Change From Baseline in St. George's Respiratory Questionnaire (SGRQ) Total Score at Week 100

SGRQ is a 50-item paper questionnaire designed to measure and quantify the impact of chronic respiratory disease on health-related quality of life (QOL) and well-being, split into 3 domains: symptoms score assessing the frequency and severity of respiratory symptoms (Items 1-8), activity score assessing the effects of breathlessness on mobility and physical activity (Items 11-17 and 36 to 44), and impacts score assessing the psychosocial impact of the disease (Items 9-10, 18-35 and 45-50). Each item has a specific weight. Domain scores = 100 \* summed weights from positive items in that component/sum of maximum weights for all non-missing items in that component Total score = 100 \* summed weights from positive items in the questionnaire/sum of maximum weights for all non-missing items in the questionnaire Scores were weighted such that each domain score ranged from 0 to 100 and the total score ranged from 0 to 100, with higher scores indicating the poorer health-related QOL.

Time frame: Baseline, week 100

Population: Full Analysis Set

ArmMeasureValue (LEAST_SQUARES_MEAN)
GLPG1690, 600 mgChange From Baseline in St. George's Respiratory Questionnaire (SGRQ) Total Score at Week 10012.1 Score on a scale
GLPG1690, 200 mgChange From Baseline in St. George's Respiratory Questionnaire (SGRQ) Total Score at Week 10014.8 Score on a scale
PlaceboChange From Baseline in St. George's Respiratory Questionnaire (SGRQ) Total Score at Week 10011.2 Score on a scale
95% CI: [-12.4, 14.1]
95% CI: [-10.4, 17.6]
Secondary

Change From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 52

SGRQ is a 50-item paper questionnaire designed to measure and quantify the impact of chronic respiratory disease on health-related quality of life (QOL) and well-being, split into 3 domains: symptoms score assessing the frequency and severity of respiratory symptoms (Items 1-8), activity score assessing the effects of breathlessness on mobility and physical activity (Items 11-17 and 36 to 44), and impacts score assessing the psychosocial impact of the disease (Items 9-10, 18-35 and 45-50). Each item has a specific weight. Domain scores = 100 \* summed weights from positive items in that component/sum of maximum weights for all non-missing items in that component Total score = 100 \* summed weights from positive items in the questionnaire/sum of maximum weights for all non-missing items in the questionnaire Scores were weighted such that each domain score ranged from 0 to 100 and the total score ranged from 0 to 100, with higher scores indicating the poorer health-related QOL.

Time frame: Baseline, week 52

Population: Full Analysis Set

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
GLPG1690, 600 mgChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 524.6 Score on a scaleStandard Error 1.13
GLPG1690, 200 mgChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 524.3 Score on a scaleStandard Error 1.08
PlaceboChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 524.7 Score on a scaleStandard Error 1.1
p-value: 0.93795% CI: [-3.2, 3]Mixed Models Analysis
p-value: 0.806495% CI: [-3.4, 2.7]Mixed Models Analysis
Secondary

Change From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100

Urge to Cough was assessed using VAS score, ranged from 0 (no urge to cough) to 100 mm (highest urge to cough).

Time frame: Baseline, week 52, week 100

Population: FAS with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690, 600 mgChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 524.8 mmStandard Deviation 26.3
GLPG1690, 600 mgChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 1008.7 mmStandard Deviation 27.4
GLPG1690, 200 mgChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 521.9 mmStandard Deviation 25.9
GLPG1690, 200 mgChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 1005.0 mmStandard Deviation 17.1
PlaceboChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 526.7 mmStandard Deviation 28.2
PlaceboChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 100-15.8 mmStandard Deviation 19.3
Secondary

Changes From Baseline in EuroQOL 5-Dimensions Questionnaire at Week 52 and Week 100

EuroQol outcome measurements was a printed 20 centimeter (cm) EQ visual analogue scale (EQ VAS) that appears somewhat like a thermometer, on which a score from 0 (worst imaginable health state or death) to 100 (best imaginable health state) was marked by the participant (or, when necessary, their proxy) with the scale in view.

Time frame: Baseline, week 52, week 100

Population: FAS with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690, 600 mgChanges From Baseline in EuroQOL 5-Dimensions Questionnaire at Week 52 and Week 100Change at Week 52-5.9 Score on a scaleStandard Deviation 13.5
GLPG1690, 600 mgChanges From Baseline in EuroQOL 5-Dimensions Questionnaire at Week 52 and Week 100Change at Week 100-11.2 Score on a scaleStandard Deviation 19.4
GLPG1690, 200 mgChanges From Baseline in EuroQOL 5-Dimensions Questionnaire at Week 52 and Week 100Change at Week 52-6.1 Score on a scaleStandard Deviation 15.3
GLPG1690, 200 mgChanges From Baseline in EuroQOL 5-Dimensions Questionnaire at Week 52 and Week 100Change at Week 100-11.6 Score on a scaleStandard Deviation 20.1
PlaceboChanges From Baseline in EuroQOL 5-Dimensions Questionnaire at Week 52 and Week 100Change at Week 100-4.7 Score on a scaleStandard Deviation 17.7
PlaceboChanges From Baseline in EuroQOL 5-Dimensions Questionnaire at Week 52 and Week 100Change at Week 52-3.7 Score on a scaleStandard Deviation 16.8
Secondary

Changes From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100

The King's Brief Interstitial Lung Disease questionnaire (K-BILD) was specifically developed to analyze the health status of participants with OLD, the questionnaire consists of of 15 items (assessed by participants on scale ranging from 1 to 7, where 1 and 7 represents worst and best health status). Items are compiled into 3 domains: breathlessness and activities (range: 0-21), psychological (range: 0-34), and chest symptoms (range: 0-8). To score the K-BILD, the Likert response scale weightings for individual items are combined and scores are transformed to a range of 0-100 by using logit values (higher scores indicate better health status).

Time frame: Baseline, week 52, week 100

Population: FAS with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690, 600 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 100-5.080 Score on a scaleStandard Deviation 8.977
GLPG1690, 600 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 52-4.213 Score on a scaleStandard Deviation 17.865
GLPG1690, 600 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 100-4.170 Score on a scaleStandard Deviation 14.095
GLPG1690, 600 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 52-2.876 Score on a scaleStandard Deviation 14.375
GLPG1690, 600 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 52-2.241 Score on a scaleStandard Deviation 9.816
GLPG1690, 600 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 100-8.530 Score on a scaleStandard Deviation 10.854
GLPG1690, 600 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 100-4.760 Score on a scaleStandard Deviation 16.485
GLPG1690, 600 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 52-3.508 Score on a scaleStandard Deviation 14.858
GLPG1690, 200 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 52-3.897 Score on a scaleStandard Deviation 13.668
GLPG1690, 200 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 100-14.425 Score on a scaleStandard Deviation 12.995
GLPG1690, 200 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 52-0.334 Score on a scaleStandard Deviation 16.875
GLPG1690, 200 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 1001.337 Score on a scaleStandard Deviation 22.141
GLPG1690, 200 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 52-2.980 Score on a scaleStandard Deviation 17.775
GLPG1690, 200 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 100-17.275 Score on a scaleStandard Deviation 21.758
GLPG1690, 200 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 52-1.397 Score on a scaleStandard Deviation 10.03
GLPG1690, 200 mgChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 100-6.125 Score on a scaleStandard Deviation 14.278
PlaceboChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 100-1.411 Score on a scaleStandard Deviation 19.779
PlaceboChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 52-2.009 Score on a scaleStandard Deviation 9.876
PlaceboChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 1004.333 Score on a scaleStandard Deviation 13.605
PlaceboChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 52-2.414 Score on a scaleStandard Deviation 15.146
PlaceboChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 1000.778 Score on a scaleStandard Deviation 17.225
PlaceboChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 52-1.769 Score on a scaleStandard Deviation 15.757
PlaceboChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 100-0.156 Score on a scaleStandard Deviation 11.25
PlaceboChanges From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 52-5.159 Score on a scaleStandard Deviation 18.986
Secondary

Changes From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100

Cough was evaluated using the LCQ. The LCQ is a 19-item questionnaire split into three domains: physical, psychological, and social. Scores were calculated by domain (range from 1 to 7) and then the total score was calculated by adding the individual domain score. Total score ranged from 3 to 21, with higher scores indicated a better health status.

Time frame: Baseline, week 52, week 100

Population: FAS with available data at specified time point,

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690, 600 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social score: Change at Week 100-0.450 Score on a scaleStandard Deviation 1.039
GLPG1690, 600 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological score: Change at Week 100-0.857 Score on a scaleStandard Deviation 1.313
GLPG1690, 600 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total score: Change at Week 100-1.770 Score on a scaleStandard Deviation 3.038
GLPG1690, 600 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social score: Change at Week 52-0.178 Score on a scaleStandard Deviation 0.979
GLPG1690, 600 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical score: Change at Week 100-0.463 Score on a scaleStandard Deviation 0.825
GLPG1690, 600 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical score: Change at Week 52-0.187 Score on a scaleStandard Deviation 0.857
GLPG1690, 600 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total score: Change at Week 52-0.569 Score on a scaleStandard Deviation 2.606
GLPG1690, 600 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological score: Change at Week 52-0.205 Score on a scaleStandard Deviation 1.004
GLPG1690, 200 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological score: Change at Week 52-0.040 Score on a scaleStandard Deviation 1.146
GLPG1690, 200 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical score: Change at Week 52-0.103 Score on a scaleStandard Deviation 0.925
GLPG1690, 200 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical score: Change at Week 100-0.734 Score on a scaleStandard Deviation 1.141
GLPG1690, 200 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological score: Change at Week 100-0.518 Score on a scaleStandard Deviation 1.426
GLPG1690, 200 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social score: Change at Week 52-0.028 Score on a scaleStandard Deviation 1.122
GLPG1690, 200 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social score: Change at Week 100-0.563 Score on a scaleStandard Deviation 1.406
GLPG1690, 200 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total score: Change at Week 52-0.171 Score on a scaleStandard Deviation 2.884
GLPG1690, 200 mgChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total score: Change at Week 100-1.815 Score on a scaleStandard Deviation 3.755
PlaceboChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical score: Change at Week 52-0.219 Score on a scaleStandard Deviation 1.087
PlaceboChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social score: Change at Week 100-0.139 Score on a scaleStandard Deviation 1.888
PlaceboChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical score: Change at Week 1000.000 Score on a scaleStandard Deviation 1.427
PlaceboChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total score: Change at Week 1000.067 Score on a scaleStandard Deviation 3.999
PlaceboChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological score: Change at Week 1000.206 Score on a scaleStandard Deviation 1.136
PlaceboChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total score: Change at Week 52-0.711 Score on a scaleStandard Deviation 3.291
PlaceboChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social score: Change at Week 52-0.232 Score on a scaleStandard Deviation 1.252
PlaceboChanges From Baseline in Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological score: Change at Week 52-0.260 Score on a scaleStandard Deviation 1.215
Secondary

Changes From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100

Cough was assessed using VAS score, ranged from 0 (no cough) to 100 millimeter (mm) (worst possible cough).

Time frame: Baseline, week 52, week 100

Population: FAS with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690, 600 mgChanges From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 522.8 mmStandard Deviation 26.4
GLPG1690, 600 mgChanges From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 10011.0 mmStandard Deviation 34
GLPG1690, 200 mgChanges From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 522.8 mmStandard Deviation 23.5
GLPG1690, 200 mgChanges From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 10014.0 mmStandard Deviation 16.3
PlaceboChanges From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 526.7 mmStandard Deviation 28.9
PlaceboChanges From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 100-9.7 mmStandard Deviation 18
Secondary

FVC at Week 100

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Week 100

Population: FAS with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690, 600 mgFVC at Week 1002474.0 mLStandard Error 210.66
GLPG1690, 200 mgFVC at Week 1002897.50 mLStandard Error 613.5
PlaceboFVC at Week 1002937.67 mLStandard Error 349.968
Secondary

FVC at Week 52

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Week 52

Population: FAS with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690, 600 mgFVC at Week 522707.73 mLStandard Error 66.096
GLPG1690, 200 mgFVC at Week 522652.20 mLStandard Error 61.173
PlaceboFVC at Week 522654.66 mLStandard Error 73.437
Secondary

Maximum Observed Plasma Concentration (Cmax) of Ziritaxtestat

Maximum Observed Plasma Concentration of Ziritaxtestat was reported.

Time frame: Sparse samples collected on day 1 pre-dose, day 85 post-dose, day 237 post-dose, day 183 pre-dose, day 365 pre-dose

Population: Pharmacokinetic Analysis Set

ArmMeasureValue (MEDIAN)
GLPG1690, 600 mgMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat968 Nanogram per milliliter (ng/mL)
GLPG1690, 200 mgMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat3529 Nanogram per milliliter (ng/mL)
PlaceboMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat638 Nanogram per milliliter (ng/mL)
GLPG1690 600 mg/NintedanibMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat2822 Nanogram per milliliter (ng/mL)
GLPG1690 200 mg/PirfenidoneMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat606 Nanogram per milliliter (ng/mL)
GLPG1690 600 mg/PirfenidoneMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat2280 Nanogram per milliliter (ng/mL)
Secondary

Percentage of Participants Hospitalized for Non-Elective Lung Transplant Until EoS

Percentage of Participants who were hospitalized for lung transplant were reported for this measure.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants Hospitalized for Non-Elective Lung Transplant Until EoS0 Percentage of participants
GLPG1690, 200 mgPercentage of Participants Hospitalized for Non-Elective Lung Transplant Until EoS0 Percentage of participants
PlaceboPercentage of Participants Hospitalized for Non-Elective Lung Transplant Until EoS0 Percentage of participants
Secondary

Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤10

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline, week 100

Population: FAS with available data at specified time point.

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤10100 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤10100 Percentage of participants
PlaceboPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤1066.7 Percentage of participants
Secondary

Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤5

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline, week 100

Population: FAS with available data at specified time point

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤5100 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤5100 Percentage of participants
PlaceboPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 100: FVC Change Within ≤566.7 Percentage of participants
Secondary

Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤10

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline, week 52

Population: FAS with available data at specified time point.

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤1098.4 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤10100 Percentage of participants
PlaceboPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤1099.2 Percentage of participants
Secondary

Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤5

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline, week 52

Population: FAS with available data at specified time point.

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤594.5 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤594.2 Percentage of participants
PlaceboPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤596.2 Percentage of participants
Secondary

Percentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoS

Percentage of participants with acute IPF exacerbation until end of study were reported for this measure.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoS5.4 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoS3.1 Percentage of participants
PlaceboPercentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoS1.9 Percentage of participants
95% CI: [1.04, 8.14]
95% CI: [0.55, 5.13]
Secondary

Percentage of Participants With All Cause Hospitalization Until EoS

Percentage of participants with all cause hospitalization was reported for this measure.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With All Cause Hospitalization Until EoS20.8 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With All Cause Hospitalization Until EoS18.8 Percentage of participants
PlaceboPercentage of Participants With All Cause Hospitalization Until EoS14.0 Percentage of participants
95% CI: [1.01, 2.35]
95% CI: [0.91, 2.16]
Secondary

Percentage of Participants With All Cause Mortality, Hospitalization for Non-elective Lung Transplant or Hospitalization for Qualifying for Lung Transplant Until EoS

Percentage of participants with all-cause mortality or hospitalization for qualifying for lung transplant were reported for this measure.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With All Cause Mortality, Hospitalization for Non-elective Lung Transplant or Hospitalization for Qualifying for Lung Transplant Until EoS8.1 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With All Cause Mortality, Hospitalization for Non-elective Lung Transplant or Hospitalization for Qualifying for Lung Transplant Until EoS6.9 Percentage of participants
PlaceboPercentage of Participants With All Cause Mortality, Hospitalization for Non-elective Lung Transplant or Hospitalization for Qualifying for Lung Transplant Until EoS3.9 Percentage of participants
95% CI: [1.06, 4.82]
95% CI: [0.86, 4.06]
Secondary

Percentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoS

Percentage of participants with all-cause mortality or hospitalization for non-elective lung transplant were reported for this measure.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoS8.1 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoS6.9 Percentage of participants
PlaceboPercentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoS3.9 Percentage of participants
95% CI: [1.06, 4.82]
95% CI: [0.86, 4.06]
Secondary

Percentage of Participants With All-Cause Mortality or Hospitalization That Meets >=10% Absolute Decline in %FVC or Respiratory-Related Hospitalization Until EoS

Percentage of participants with all-cause mortality or respiratory related hospitalization that meets \>=10% absolute decline in %FVC or respiratory-related hospitalization were reported for this measure.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With All-Cause Mortality or Hospitalization That Meets >=10% Absolute Decline in %FVC or Respiratory-Related Hospitalization Until EoS16.6 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With All-Cause Mortality or Hospitalization That Meets >=10% Absolute Decline in %FVC or Respiratory-Related Hospitalization Until EoS12.7 Percentage of participants
PlaceboPercentage of Participants With All-Cause Mortality or Hospitalization That Meets >=10% Absolute Decline in %FVC or Respiratory-Related Hospitalization Until EoS8.9 Percentage of participants
95% CI: [1.2, 3.31]
95% CI: [0.88, 2.54]
Secondary

Percentage of Participants With All-Cause Mortality or Respiratory-Related Hospitalizations Until EoS

Percentage of participants with all-cause mortality or respiratory related hospitalization were reported for this measure.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With All-Cause Mortality or Respiratory-Related Hospitalizations Until EoS16.6 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With All-Cause Mortality or Respiratory-Related Hospitalizations Until EoS12.7 Percentage of participants
PlaceboPercentage of Participants With All-Cause Mortality or Respiratory-Related Hospitalizations Until EoS8.9 Percentage of participants
95% CI: [1.2, 3.31]
95% CI: [0.88, 2.54]
Secondary

Percentage of Participants With Disease Progression Until EoS

Disease progression was defined as the composite occurrence of \>=10% absolute decline in percent predicted %FVC or all-cause mortality. FVC (in mL\]) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Disease Progression Until EoS31.7 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Disease Progression Until EoS27.7 Percentage of participants
PlaceboPercentage of Participants With Disease Progression Until EoS26.7 Percentage of participants
95% CI: [0.9, 1.94]
95% CI: [0.72, 1.56]
Secondary

Percentage of Participants With Disease Progression Up to 52 Weeks

Disease progression was defined as the composite occurrence of more than or equal to (\>=)10 percent (%) absolute decline in percent predicted forced vital capacity (%FVC) or all-cause mortality. FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Up to week 52

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Disease Progression Up to 52 Weeks23.9 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Disease Progression Up to 52 Weeks23.1 Percentage of participants
PlaceboPercentage of Participants With Disease Progression Up to 52 Weeks22.1 Percentage of participants
p-value: 0.516295% CI: [0.76, 1.74]Regression, Logistic
p-value: 0.756695% CI: [0.71, 1.62]Regression, Logistic
Secondary

Percentage of Participants With Respiratory-Related Hospitalization Until End of Study (EoS)

Percentage of participants with respiratory related to hospitalization were reported in this measure.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Respiratory-Related Hospitalization Until End of Study (EoS)13.5 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Respiratory-Related Hospitalization Until End of Study (EoS)10.8 Percentage of participants
PlaceboPercentage of Participants With Respiratory-Related Hospitalization Until End of Study (EoS)6.6 Percentage of participants
95% CI: [1.2, 3.85]
95% CI: [0.93, 3.1]
Secondary

Percentage of Participants With Respiratory Related Mortality Until EoS

Percentage of participants with respiratory related mortality until end of study were reported for this study.

Time frame: Up to EoS (week 125)

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Respiratory Related Mortality Until EoS5.8 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Respiratory Related Mortality Until EoS4.2 Percentage of participants
PlaceboPercentage of Participants With Respiratory Related Mortality Until EoS1.6 Percentage of participants
Secondary

Percentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEs

Safety was assessed by adverse events (AEs), which included abnormalities identified during a medical test (e.g. laboratory tests, vital signs, electrocardiogram, etc.) if the abnormality induced clinical signs or symptoms, needed active intervention, interruption or discontinuation of study drug or was clinically significant. A Treatment emergent AE (TEAE) was defined as any AE that started or worsened after the first dose of study drug up to 30 days after the last dose of study drug. AEs were considered serious (SAEs) if the AE resulted in death, was life-threatening, resulted in persistent or significant disability/incapacity or substantial disruption of the ability to conduct normal life functions, resulted in congenital anomaly, or birth defect or required inpatient hospitalization or led to prolongation of hospitalization.

Time frame: Baseline up to EoS (up to Week 125)

Population: Full Analysis Set

ArmMeasureGroupValue (NUMBER)
GLPG1690, 600 mgPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsTEAE81.1 Percentage of participants
GLPG1690, 600 mgPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsSerious TEAE24.7 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsTEAE85.8 Percentage of participants
GLPG1690, 200 mgPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsSerious TEAE24.2 Percentage of participants
PlaceboPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsTEAE75.6 Percentage of participants
PlaceboPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsSerious TEAE16.3 Percentage of participants
Secondary

Percent Change From Baseline in FVC at Week 100

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline, week 100

Population: FAS with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690, 600 mgPercent Change From Baseline in FVC at Week 100-11.75 Percent changeStandard Error 4.481
GLPG1690, 200 mgPercent Change From Baseline in FVC at Week 1005.07 Percent changeStandard Error 1.012
PlaceboPercent Change From Baseline in FVC at Week 100-1.46 Percent changeStandard Error 11.279
Secondary

Percent Change From Baseline in FVC at Week 52

FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry.

Time frame: Baseline, week 52

Population: FAS with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690, 600 mgPercent Change From Baseline in FVC at Week 52-5.71 Percent changeStandard Error 0.77
GLPG1690, 200 mgPercent Change From Baseline in FVC at Week 52-5.85 Percent changeStandard Error 0.69
PlaceboPercent Change From Baseline in FVC at Week 52-6.42 Percent changeStandard Error 0.807

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026