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

A Phase 3, Randomized, Double-blind, Parallel-group, Placebo-controlled Multicenter 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
NCT03711162
Acronym
ISABELA1
Enrollment
525
Registered
2018-10-18
Start date
2018-11-28
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 your 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 got 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 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 121)Percentage of participants with respiratory related 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 in FVC Until EoSBaseline up to EoS (week 121)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 121)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 121)Percentage of participants with all cause hospitalization was reported for this measure.
Percentage of Participants With Respiratory Related Mortality Until EoSUp to EoS (week 121)Percentage of participants with respiratory related mortality until EoS were reported for this study.
Percentage of Participants Hospitalized for Non-elective Lung Transplant Until EoSUp to EoS (week 121)Percentage of Participants who were hospitalized for Non-elective lung transplant were reported for this measure.
Percentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoSUp to EoS (week 121)Percentage of participants with acute IPF exacerbation until EoS were reported for this measure.
Percentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoSUp to EoS (week 121)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 121)Percentage of participants with all-cause mortality or hospitalization for non-elective lung transplant 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 121)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 121)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.
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.
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.
Percentage of Participants With Disease Progression up to Week 52Up 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.
Change From Baseline in FVC at Week 112Baseline, week 112FVC (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 112Baseline, week 112FVC (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 112: FVC Change Within ≤5Baseline, week 112FVC (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 112: FVC Change Within ≤10Baseline, week 112FVC (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 30 days after the last dose (up to week 121)Safety was assessed by AEs, which included abnormalities identified during a medical test (example, 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 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 was a 19-item questionnaire split into three domains: physical, psychological, and social. Scores were calculated by domain (range from 1 to 7, higher scores indicated a better health status) 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.
Change 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).
Change From Baseline in European Quality Of Life (EQ) VAS at Week 52 and Week 100Baseline, week 52, week 100EuroQol outcome measurements is a printed 20 cm 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.
Change From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Baseline, week 52, week 100The K-BILD questionnaire was specifically developed to analyze the health status of participants with ILD. The questionnaire consists of 15 items (assessed by the participants on a scale ranging from 1 to 7, where 1 and 7 represent 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 (AUC) 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 Total Distance Walked in Six-minute Walk Test (6MWT) at Week 52 and Week 100Baseline, week 52, week 100The 6-MWT depicted the total distance covered by a participant during 6 minutes of 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, week 100Change from baseline in DLCO (percent predicted hemoglobin level corrected) was reported for this measure.mmol/min/kPa: Millimole per minute per kilopascal
FVC at Week 112Week 112FVC (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

Australia, Belgium, Brazil, Chile, Czechia, Denmark, Germany, Greece, Japan, Peru, Spain, Taiwan, Turkey (Türkiye), United Kingdom, United States

Participant flow

Recruitment details

Participants with centrally confirmed diagnosis of idiopathic pulmonary fibrosis (IPF) were enrolled at 106 sites.

Pre-assignment details

A total of 1116 participants were screened for the study, and 525 were randomized and 523 were treated.

Participants by arm

ArmCount
GLPG1690 600 mg
Participants received GLPG1690 (ziritaxestat) 600 mg, film-coated tablets orally once daily (mean GLPG1690 exposure was up to 325.3 days) in addition to local standard of care. 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).
174
GLPG1690 200 mg
Participants received GLPG1690 (ziritaxestat) 200 mg as film-coated tablet for oral use once daily (mean GLPG1690 exposure was up to 356.0 days) in addition to local standard of care. 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).
175
Placebo
Participants received GLPG1690 (ziritaxestat) matching placebo tablets for oral use once daily (mean GLPG1690 exposure was up to 353.4 days) in addition to local standard of care. 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).
174
Total523

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event524
Overall StudyDeath1178
Overall StudyLack of Efficacy002
Overall StudyLost to Follow-up101
Overall StudyMiscellaneous122
Overall StudyNot Treated101
Overall StudyPhysician Decision020
Overall StudyProtocol Specified Withdrawal Criteria Met001
Overall StudyStudy Terminated by Sponsor139152146
Overall StudyWithdrawal by Subject171010

Baseline characteristics

CharacteristicGLPG1690 600 mgGLPG1690 200 mgPlaceboTotal
Age, Continuous69.4 years
STANDARD_DEVIATION 7.2
70.0 years
STANDARD_DEVIATION 6.7
70.6 years
STANDARD_DEVIATION 7.7
70.0 years
STANDARD_DEVIATION 7.2
Ethnicity (NIH/OMB)
Hispanic or Latino
44 Participants27 Participants26 Participants97 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
129 Participants145 Participants148 Participants422 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants3 Participants0 Participants4 Participants
Forced Vital Capacity (FVC)2947.0 mL
STANDARD_DEVIATION 820.8
2873.2 mL
STANDARD_DEVIATION 815.8
2943.3 mL
STANDARD_DEVIATION 738.7
2921.1 mL
STANDARD_DEVIATION 791.9
Race (NIH/OMB)
American Indian or Alaska Native
10 Participants6 Participants6 Participants22 Participants
Race (NIH/OMB)
Asian
11 Participants9 Participants9 Participants29 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 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
152 Participants160 Participants159 Participants471 Participants
Sex: Female, Male
Female
32 Participants32 Participants28 Participants92 Participants
Sex: Female, Male
Male
142 Participants143 Participants146 Participants431 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
12 / 1748 / 1758 / 174
other
Total, other adverse events
91 / 17499 / 17582 / 174
serious
Total, serious adverse events
38 / 17438 / 17536 / 174

Outcome results

Primary

Annual Rate of Decline in 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 - Efficacy (FAS-EF) included all randomized participants who received at least 1 dose of investigational product and excluded participants from the site found to have serious good clinical practice (GCP)-noncompliance issues.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
GLPG1690 600 mgAnnual Rate of Decline in FVC up to Week 52-124.6 mL/yearStandard Error 27.15
GLPG1690 200 mgAnnual Rate of Decline in FVC up to Week 52-173.9 mL/yearStandard Error 26.31
PlaceboAnnual Rate of Decline in FVC up to Week 52-147.3 mL/yearStandard Error 26.72
p-value: 0.552595% CI: [-52.3, 97.6]Coefficient Regression Model
p-value: 0.477695% CI: [-100.5, 47.1]Coefficient Regression Model
Secondary

Annual Rate of Decline in 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 121)

Population: Full Analysis Set - Efficacy

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
GLPG1690 600 mgAnnual Rate of Decline in FVC Until EoS-127.0 mL/yearStandard Error 24.01
GLPG1690 200 mgAnnual Rate of Decline in FVC Until EoS-175.5 mL/yearStandard Error 22.97
PlaceboAnnual Rate of Decline in FVC Until EoS-146.4 mL/yearStandard Error 23.59
95% CI: [-46.9, 85.7]
95% CI: [-93.9, 35.8]
Secondary

Area Under The Concentration Time Curve (AUC) 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 (AUC) of Ziritaxtestat10367 Nanogram * milliliter per hour (ng*mL/h)
GLPG1690 200 mgArea Under The Concentration Time Curve (AUC) of Ziritaxtestat51136 Nanogram * milliliter per hour (ng*mL/h)
PlaceboArea Under The Concentration Time Curve (AUC) of Ziritaxtestat7095 Nanogram * milliliter per hour (ng*mL/h)
GLPG1690 600 mg/NintedanibArea Under The Concentration Time Curve (AUC) of Ziritaxtestat33796 Nanogram * milliliter per hour (ng*mL/h)
GLPG1690 200 mg/PirfenidoneArea Under The Concentration Time Curve (AUC) of Ziritaxtestat6375 Nanogram * milliliter per hour (ng*mL/h)
GLPG1690 600 mg/PirfenidoneArea Under The Concentration Time Curve (AUC) of Ziritaxtestat21188 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 DLCO (percent predicted hemoglobin level corrected) was reported for this measure.mmol/min/kPa: Millimole per minute per kilopascal

Time frame: Baseline, week 52, week 100

Population: FAS - EF 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 52-0.640 mmol/min/kPaStandard Error 0.1205
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 100-0.215 mmol/min/kPaStandard Error 0.6737
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 52-0.137 mmol/min/kPaStandard Error 0.1288
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 100-1.670 mmol/min/kPa
PlaceboChange From Baseline in Diffusing Capacity of Lung for Carbon Monoxide (DLCO) (Corrected for Hemoglobin [Hb]) at Week 52 and Week 100Change at Week 52-0.193 mmol/min/kPaStandard Error 0.0907
PlaceboChange From Baseline in Diffusing Capacity of Lung for Carbon Monoxide (DLCO) (Corrected for Hemoglobin [Hb]) at Week 52 and Week 100Change at Week 100-2.134 mmol/min/kPaStandard Error 1.9836
Secondary

Change From Baseline in European Quality Of Life (EQ) VAS at Week 52 and Week 100

EuroQol outcome measurements is a printed 20 cm 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-EF with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690 600 mgChange From Baseline in European Quality Of Life (EQ) VAS at Week 52 and Week 100Change at Week 52-1.4 Score on a scaleStandard Deviation 16.2
GLPG1690 600 mgChange From Baseline in European Quality Of Life (EQ) VAS at Week 52 and Week 100Change at Week 1007.2 Score on a scaleStandard Deviation 12.3
GLPG1690 200 mgChange From Baseline in European Quality Of Life (EQ) VAS at Week 52 and Week 100Change at Week 52-6.1 Score on a scaleStandard Deviation 17.3
GLPG1690 200 mgChange From Baseline in European Quality Of Life (EQ) VAS at Week 52 and Week 100Change at Week 100-9.3 Score on a scaleStandard Deviation 25.2
PlaceboChange From Baseline in European Quality Of Life (EQ) VAS at Week 52 and Week 100Change at Week 52-3.7 Score on a scaleStandard Deviation 16.5
PlaceboChange From Baseline in European Quality Of Life (EQ) VAS at Week 52 and Week 100Change at Week 100-2.1 Score on a scaleStandard Deviation 23.8
Secondary

Change From Baseline in FVC at Week 112

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 112

Population: FAS - EF with available data at specified time point. No participant was available for analysis at Week 112 for arms GLPG1690 200 mg and Placebo.

ArmMeasureValue (MEAN)Dispersion
GLPG1690 600 mgChange From Baseline in FVC at Week 112-55.75 mLStandard Error 277.75
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-EF with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690 600 mgChange From Baseline in FVC at Week 52-145.94 mLStandard Error 31.799
GLPG1690 200 mgChange From Baseline in FVC at Week 52-182.29 mLStandard Error 30.286
PlaceboChange From Baseline in FVC at Week 52-133.24 mLStandard Error 31.819
Secondary

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

The K-BILD questionnaire was specifically developed to analyze the health status of participants with ILD. The questionnaire consists of 15 items (assessed by the participants on a scale ranging from 1 to 7, where 1 and 7 represent 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-EF with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690 600 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 52-0.256 Score on a scaleStandard Deviation 20.896
GLPG1690 600 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 1001.417 Score on a scaleStandard Deviation 19.427
GLPG1690 600 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 520.429 Score on a scaleStandard Deviation 18.24
GLPG1690 600 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 100-4.417 Score on a scaleStandard Deviation 30.117
GLPG1690 600 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 52-1.624 Score on a scaleStandard Deviation 20.367
GLPG1690 600 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 1000.850 Score on a scaleStandard Deviation 13.686
GLPG1690 600 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 52-0.276 Score on a scaleStandard Deviation 13.69
GLPG1690 600 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 100-0.383 Score on a scaleStandard Deviation 15.09
GLPG1690 200 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 52-2.583 Score on a scaleStandard Deviation 15.555
GLPG1690 200 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 52-2.306 Score on a scaleStandard Deviation 10.398
GLPG1690 200 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 100-6.478 Score on a scaleStandard Deviation 9.193
GLPG1690 200 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 52-2.095 Score on a scaleStandard Deviation 20.002
GLPG1690 200 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 100-2.667 Score on a scaleStandard Deviation 19.951
GLPG1690 200 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 52-5.031 Score on a scaleStandard Deviation 13.512
GLPG1690 200 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 100-9.733 Score on a scaleStandard Deviation 15.973
GLPG1690 200 mgChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 100-5.444 Score on a scaleStandard Deviation 7.726
PlaceboChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 52-2.421 Score on a scaleStandard Deviation 17.049
PlaceboChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 100-3.843 Score on a scaleStandard Deviation 19.788
PlaceboChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Breathlessness and Activities Score: Change at Week 52-4.545 Score on a scaleStandard Deviation 15.25
PlaceboChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Psychological Score: Change at Week 100-2.743 Score on a scaleStandard Deviation 10.93
PlaceboChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 52-2.484 Score on a scaleStandard Deviation 10.863
PlaceboChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 100-3.371 Score on a scaleStandard Deviation 16.023
PlaceboChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Chest Symptoms Score: Change at Week 52-2.790 Score on a scaleStandard Deviation 20.052
PlaceboChange From Baseline in King's Brief Interstitial Lung Disease (K-BILD) at Week 52 and Week 100Total Score: Change at Week 100-2.371 Score on a scaleStandard Deviation 10.52
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 - Efficacy

ArmMeasureValue (LEAST_SQUARES_MEAN)
GLPG1690 600 mgChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 10011.4 Score on a scale
GLPG1690 200 mgChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 10010.5 Score on a scale
PlaceboChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 1007.7 Score on a scale
95% CI: [-11.5, 19]
95% CI: [-11.1, 16.8]
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- Efficacy

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
GLPG1690 600 mgChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 523.3 Score on a scaleStandard Error 1.41
GLPG1690 200 mgChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 524.1 Score on a scaleStandard Error 1.32
PlaceboChange From Baseline in St.George's Respiratory Questionnaire (SGRQ) Total Score at Week 523.8 Score on a scaleStandard Error 1.36
p-value: 0.78595% CI: [-4.4, 3.3]Mixed Models Analysis
p-value: 0.861795% CI: [-3.4, 4.1]Mixed Models Analysis
Secondary

Change From Baseline in Total Distance Walked in Six-minute Walk Test (6MWT) at Week 52 and Week 100

The 6-MWT depicted the total distance covered by a participant during 6 minutes of walking.

Time frame: Baseline, week 52, week 100

Population: FAS - EF with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690 600 mgChange From Baseline in Total Distance Walked in Six-minute Walk Test (6MWT) at Week 52 and Week 100Change at Week 52-36.34 MeterStandard Error 7.805
GLPG1690 600 mgChange From Baseline in Total Distance Walked in Six-minute Walk Test (6MWT) at Week 52 and Week 100Change at Week 100-83.00 MeterStandard Error 17.521
GLPG1690 200 mgChange From Baseline in Total Distance Walked in Six-minute Walk Test (6MWT) at Week 52 and Week 100Change at Week 52-15.65 MeterStandard Error 9.865
GLPG1690 200 mgChange From Baseline in Total Distance Walked in Six-minute Walk Test (6MWT) at Week 52 and Week 100Change at Week 100-79.00 MeterStandard Error 13
PlaceboChange From Baseline in Total Distance Walked in Six-minute Walk Test (6MWT) at Week 52 and Week 100Change at Week 52-34.75 MeterStandard Error 11.546
PlaceboChange From Baseline in Total Distance Walked in Six-minute Walk Test (6MWT) at Week 52 and Week 100Change at Week 100-137.87 MeterStandard Error 93.135
Secondary

Change 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-EF with available data at specified time point

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690 600 mgChange From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 1008.0 mmStandard Deviation 23.1
GLPG1690 600 mgChange From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 522.9 mmStandard Deviation 27.9
GLPG1690 200 mgChange From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 1000.3 mmStandard Deviation 24
GLPG1690 200 mgChange From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 523.2 mmStandard Deviation 25.1
PlaceboChange From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 522.3 mmStandard Deviation 27.3
PlaceboChange From Baseline in Visual Analogue Score (VAS): Cough at Week 52 and Week 100Change at Week 10025.4 mmStandard Deviation 39.1
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-EF 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 1005.7 mmStandard Deviation 22
GLPG1690 600 mgChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 521.8 mmStandard Deviation 26.8
GLPG1690 200 mgChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 521.5 mmStandard Deviation 23.2
GLPG1690 200 mgChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 100-1.9 mmStandard Deviation 24.8
PlaceboChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 521.1 mmStandard Deviation 24.9
PlaceboChange From Baseline in Visual Analogue Score (VAS): Urge to Cough at Week 52 and Week 100Change at Week 10024.3 mmStandard Deviation 40.6
Secondary

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

Cough was evaluated using the LCQ. The LCQ was a 19-item questionnaire split into three domains: physical, psychological, and social. Scores were calculated by domain (range from 1 to 7, higher scores indicated a better health status) 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 - EF with available data at specified time point.

ArmMeasureGroupValue (MEAN)Dispersion
GLPG1690 600 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological Score: Change at Week 100-0.595 Score on a scaleStandard Deviation 0.941
GLPG1690 600 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical Score: Change at Week 520.024 Score on a scaleStandard Deviation 1.218
GLPG1690 600 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical Score: Change at Week 100-0.208 Score on a scaleStandard Deviation 0.452
GLPG1690 600 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological Score: Change at Week 52-0.122 Score on a scaleStandard Deviation 1.397
GLPG1690 600 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social Score: Change at Week 52-0.065 Score on a scaleStandard Deviation 1.344
GLPG1690 600 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social Score: Change at Week 100-0.458 Score on a scaleStandard Deviation 1.269
GLPG1690 600 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total Score: Change at Week 52-0.163 Score on a scaleStandard Deviation 3.778
GLPG1690 600 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total Score: Change at Week 100-1.262 Score on a scaleStandard Deviation 2.295
GLPG1690 200 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total Score: Change at Week 52-0.791 Score on a scaleStandard Deviation 3.028
GLPG1690 200 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological Score: Change at Week 100-0.254 Score on a scaleStandard Deviation 0.892
GLPG1690 200 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social Score: Change at Week 52-0.351 Score on a scaleStandard Deviation 1.147
GLPG1690 200 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social Score: Change at Week 100-0.333 Score on a scaleStandard Deviation 1.237
GLPG1690 200 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical Score: Change at Week 52-0.215 Score on a scaleStandard Deviation 0.966
GLPG1690 200 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total Score: Change at Week 100-0.810 Score on a scaleStandard Deviation 0.9249
GLPG1690 200 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical Score: Change at Week 100-0.222 Score on a scaleStandard Deviation 1.2
GLPG1690 200 mgChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological Score: Change at Week 52-0.225 Score on a scaleStandard Deviation 1.204
PlaceboChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical Score: Change at Week 52-0.151 Score on a scaleStandard Deviation 0.835
PlaceboChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological Score: Change at Week 52-0.044 Score on a scaleStandard Deviation 1.02
PlaceboChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social Score: Change at Week 1000.321 Score on a scaleStandard Deviation 0.997
PlaceboChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Psychological Score: Change at Week 1000.367 Score on a scaleStandard Deviation 0.899
PlaceboChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total Score: Change at Week 52-0.247 Score on a scaleStandard Deviation 2.68
PlaceboChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Physical Score: Change at Week 100-0.286 Score on a scaleStandard Deviation 0.847
PlaceboChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Social Score: Change at Week 52-0.052 Score on a scaleStandard Deviation 1.08
PlaceboChanges From Baseline Leicester Cough Questionnaire (LCQ) Total Score and Individual Domain Score at Week 52 and Week 100Total Score: Change at Week 1000.403 Score on a scaleStandard Deviation 2.497
Secondary

FVC at Week 112

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 112

Population: FAS-EF with available data at specified time point. No participant was available for analysis at Week 112 for arm GLPG1690 200 mg and Placebo.

ArmMeasureValue (MEAN)Dispersion
GLPG1690 600 mgFVC at Week 1123262.00 mLStandard Error 15
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-EF with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690 600 mgFVC at Week 522886.20 mLStandard Error 83.969
GLPG1690 200 mgFVC at Week 522662.90 mLStandard Error 79.056
PlaceboFVC at Week 523021.99 mLStandard Error 78.415
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 Ziritaxtestat864 Nanogram per milliliter (ng/mL)
GLPG1690 200 mgMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat3962 Nanogram per milliliter (ng/mL)
PlaceboMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat583 Nanogram per milliliter (ng/mL)
GLPG1690 600 mg/NintedanibMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat2686 Nanogram per milliliter (ng/mL)
GLPG1690 200 mg/PirfenidoneMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat591 Nanogram per milliliter (ng/mL)
GLPG1690 600 mg/PirfenidoneMaximum Observed Plasma Concentration (Cmax) of Ziritaxtestat2009 Nanogram per milliliter (ng/mL)
Secondary

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

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

Time frame: Up to EoS (week 121)

Population: Full Analysis Set - Efficacy

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants Hospitalized for Non-elective Lung Transplant Until EoS0.0 Percentage of participants
GLPG1690 200 mgPercentage of Participants Hospitalized for Non-elective Lung Transplant Until EoS0.0 Percentage of participants
PlaceboPercentage of Participants Hospitalized for Non-elective Lung Transplant Until EoS0.0 Percentage of participants
Secondary

Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 112: 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 112

Population: FAS - EF with available data at specified time point. No participant was available for analysis at Week 112 for arms GLPG1690 200 mg and Placebo.

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 112: FVC Change Within ≤10100 Percentage of participants
Secondary

Percentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 112: 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 112

Population: FAS - EF with available data at specified time point. No participant was available for analysis at Week 112 for arms GLPG1690 200 mg and Placebo.

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 112: FVC Change Within ≤550.0 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 - EF 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 ≤1097.6 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤1097.9 Percentage of participants
PlaceboPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤1096.8 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 - EF 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 ≤590.2 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤592.8 Percentage of participants
PlaceboPercentage of Participants With Absolute Categorical Change From Baseline in Percent FVC at Week 52: FVC Change Within ≤589.4 Percentage of participants
Secondary

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

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

Time frame: Up to EoS (week 121)

Population: Full Analysis Set - Efficacy

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoS4.7 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoS4.7 Percentage of participants
PlaceboPercentage of Participants With Acute Idiopathic Pulmonary Fibrosis (IPF) Exacerbation Until EoS3.7 Percentage of participants
95% CI: [0.44, 3.81]
95% CI: [0.42, 3.5]
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 121)

Population: Full Analysis Set - Efficacy

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With All Cause Hospitalization Until EoS18.3 Percentage of participants
GLPG1690 200 mgPercentage of Participants With All Cause Hospitalization Until EoS21.6 Percentage of participants
PlaceboPercentage of Participants With All Cause Hospitalization Until EoS18.9 Percentage of participants
95% CI: [0.65, 1.78]
95% CI: [0.76, 1.98]
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 non-elective lung transplant or hospitalization for qualifying for lung transplant were reported for this measure.

Time frame: Up to EoS (week 121)

Population: Full Analysis Set - Efficacy

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 EoS7.1 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 EoS4.7 Percentage of participants
PlaceboPercentage of Participants With All Cause Mortality, Hospitalization for Non-elective Lung Transplant or Hospitalization for Qualifying for Lung Transplant Until EoS4.9 Percentage of participants
95% CI: [0.66, 4.08]
95% CI: [0.36, 2.61]
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 121)

Population: FAS - EF with available data at specified time point.

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoS7.1 Percentage of participants
GLPG1690 200 mgPercentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoS4.7 Percentage of participants
PlaceboPercentage of Participants With All Cause Mortality or Hospitalization for Non-elective Lung Transplant Until EoS4.9 Percentage of participants
95% CI: [0.66, 4.08]
95% CI: [0.36, 2.61]
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 121)

Population: Full Analysis Set - Efficacy

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 EoS13.6 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 EoS11.1 Percentage of participants
PlaceboPercentage of Participants With All-Cause Mortality or Hospitalization That Meets >=10% Absolute Decline in %FVC or Respiratory-Related Hospitalization Until EoS14.0 Percentage of participants
95% CI: [0.59, 1.91]
95% CI: [0.43, 1.46]
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 121)

Population: Full Analysis Set - Efficacy

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With All-Cause Mortality or Respiratory-Related Hospitalizations Until EoS13.6 Percentage of participants
GLPG1690 200 mgPercentage of Participants With All-Cause Mortality or Respiratory-Related Hospitalizations Until EoS11.1 Percentage of participants
PlaceboPercentage of Participants With All-Cause Mortality or Respiratory-Related Hospitalizations Until EoS14.0 Percentage of participants
95% CI: [0.59, 1.91]
95% CI: [0.43, 1.46]
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 121)

Population: Full Analysis Set - Efficacy

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With Disease Progression Until EoS23.1 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Disease Progression Until EoS24.6 Percentage of participants
PlaceboPercentage of Participants With Disease Progression Until EoS21.3 Percentage of participants
95% CI: [0.68, 1.95]
95% CI: [0.74, 2.09]
Secondary

Percentage of Participants With Disease Progression up to Week 52

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- Efficacy

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With Disease Progression up to Week 5217.8 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Disease Progression up to Week 5218.7 Percentage of participants
PlaceboPercentage of Participants With Disease Progression up to Week 5218.3 Percentage of participants
p-value: 0.964895% CI: [0.56, 1.74]Regression, Logistic
p-value: 0.85395% CI: [0.6, 1.84]Regression, Logistic
Secondary

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

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

Time frame: Up to EoS (week 121)

Population: Full Analysis Set- Efficacy

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With Respiratory-Related Hospitalization Until End of Study (EoS)9.5 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Respiratory-Related Hospitalization Until End of Study (EoS)9.4 Percentage of participants
PlaceboPercentage of Participants With Respiratory-Related Hospitalization Until End of Study (EoS)9.8 Percentage of participants
95% CI: [0.5, 2.05]
95% CI: [0.47, 1.88]
Secondary

Percentage of Participants With Respiratory Related Mortality Until EoS

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

Time frame: Up to EoS (week 121)

Population: Full Analysis Set - Efficacy

ArmMeasureValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With Respiratory Related Mortality Until EoS3.6 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Respiratory Related Mortality Until EoS4.1 Percentage of participants
PlaceboPercentage of Participants With Respiratory Related Mortality Until EoS1.8 Percentage of participants
Secondary

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

Safety was assessed by AEs, which included abnormalities identified during a medical test (example, 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 30 days after the last dose (up to week 121)

Population: FAS consisted of all randomized participants who received at least 1 dose of investigational product.

ArmMeasureGroupValue (NUMBER)
GLPG1690 600 mgPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsTEAEs78.7 Percentage of participants
GLPG1690 600 mgPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsSerious TEAEs21.8 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsTEAEs84.6 Percentage of participants
GLPG1690 200 mgPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsSerious TEAEs21.7 Percentage of participants
PlaceboPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsTEAEs84.5 Percentage of participants
PlaceboPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEsSerious TEAEs20.7 Percentage of participants
Secondary

Percent Change From Baseline in FVC at Week 112

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 112

Population: FAS - EF with available data at specified time point. No participant was available for analysis at Week 112 for arms GLPG1690 200 mg and Placebo.

ArmMeasureValue (MEAN)Dispersion
GLPG1690 600 mgPercent Change From Baseline in FVC at Week 112-0.95 Percent changeStandard Error 8.288
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-EF with available data at specified time point.

ArmMeasureValue (MEAN)Dispersion
GLPG1690 600 mgPercent Change From Baseline in FVC at Week 52-4.57 Percent changeStandard Error 0.992
GLPG1690 200 mgPercent Change From Baseline in FVC at Week 52-6.46 Percent changeStandard Error 1.115
PlaceboPercent Change From Baseline in FVC at Week 52-4.48 Percent changeStandard Error 0.978

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