ClinicalTrials.gg
CompletedNCT03025308FINCH 4Updated Jul 27, 2026Results posted

Long Term Extension Study to Assess the Safety and Efficacy of Filgotinib in Adults With Rheumatoid Arthritis

A Phase 3 interventional study of Filgotinib and Placebo to match filgotinib in Rheumatoid Arthritis, sponsored by Alfasigma S.p.A.. Completed at 345 sites in 32 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-27.

Sponsored by Alfasigma S.p.A. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
2,731
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 17 studies testing GLPG0634 in Arthritis, Rheumatoid — 4 open to participants now, 4 under way, none of them phase 3. GLPG0634 · Arthritis, Rheumatoid.

Enrollment
Largest of 17
2,731 · median 287
Started
2017
the only one that year
Phase 3
5 of 17
none open now
Registered
9th of 17
by date
Lead sponsor
1 of 17
Alfasigma S.p.A.

Among the 17 studies testing GLPG0634 in Arthritis, Rheumatoid, this one has the largest enrollment, is the only one that started in 2017, is one of 5 in phase 3, and was the 9th registered.

By phase

17 studies; the count open now beside each. This study's row is marked.

Phase 26 · 0 open
Phase 3this study5 · 0 open
Phase 44 · 4 open
Phase 12 · 0 open

By the year they started

First in 2011; this study’s year is marked. 1 started in 2017.

Size and results

Median enrollment 287 across the 17 interventional studies. Of the 12 that completed or were terminated, 10 (83%) have results posted.

Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 17 studies testing GLPG0634 in Arthritis, Rheumatoid, or all of them as a file.
02

Study summary

The primary objective of this study is to evaluate the long-term safety and tolerability of filgotinib in participants who have completed one of the parent studies of filgotinib in rheumatoid arthritis (RA).

03

Conditions studied

  • Rheumatoid Arthritis
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  • Males or females who may benefit from filgotinib as judged by the investigator AND who completed a Gilead sponsored filgotinib parent study for RA as outlined below:

    • Have completed GS-US-417-0301, GS-US-417-0302 or GS-US-417-0303 on study drug

      • OR
    • Have completed GS-US-417-0302 on standard of care therapy due to RA non-responder status
  • Females of must have a negative pregnancy test prior to first dose of study drug in the long term extension (LTE)
  • Females of childbearing potential who engage in heterosexual intercourse must agree to protocol-approved methods of

Key Exclusion Criteria:

  • Diagnosis of an or inflammatory joint disease other than RA, which would put the participant at risk by participating in the study or would interfere with study assessments/data interpretation, per judgment of the investigator
  • Known to the study drug or its
  • Any medical condition which would put the participant at risk by participating in the study or would interfere with study assessments/data interpretation, per judgment of the investigator

NOTE: Other protocol defined Inclusion/ Exclusion criteria may apply.

Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
2,731 participants (actual)

Study arms

  • Experimental
    Blinded Phase: Filgotinib 200 mg

    Filgotinib 200 mg plus placebo to match (PTM) filgotinib 100 mg for up to 6 years

    Drug: Filgotinib · Drug: Placebo to match filgotinib

  • Experimental
    Blinded Phase: Filgotinib 100 mg

    Filgotinib 100 mg plus PTM filgotinib 200 mg for up to 6 years

    Drug: Filgotinib · Drug: Placebo to match filgotinib

  • Experimental
    Open Label Phase: Filgotinib 200 mg

    Filgotinib 200 mg for up to 6 years

    Drug: Filgotinib

  • Experimental
    Open Label Phase: Filgotinib 100 mg

    Filgotinib 100 mg for up to 6 years

    Drug: Filgotinib

Interventions

  • Tablet(s) administered orally once daily

    Also known as: GS-6034, GLPG0634

  • DrugPlacebo to match filgotinib

    Tablet(s) administered orally once daily

06

What researchers measure

Primary outcomes

  1. Number of Participants Who Reported Treatment-Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)

    An adverse event (AE) was any untoward medical occurrence in a clinical study participant after administration of an investigational product, whether or not considered related to the study treatment. An SAE was defined as any untoward medical occurrence that, at any dose, resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect or significant medical event. A TEAE was any AE with an onset date on or after the study drug start date and no later than 30 days after permanent discontinuation of study drug or premature discontinuation of study drug.

    Time frame: Day 1 to Week 376 (end of study)

  2. Number of Participants Who Reported Treatment-Emergent Graded Laboratory Abnormalities in Serum Chemistry Parameters

    Treatment-emergent laboratory abnormalities were defined as an increase of at least one toxicity grade from the LTE baseline at any post-baseline time point, up to and including 30 days after the last study drug dose for subjects who permanently discontinued treatment. Abnormalities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE), Version 4.03, as Grade 1 (mild), Grade 2 (moderate), Grade 3 (severe), and Grade 4 (life-threatening). Blood samples were collected by venipuncture in the arm at the specified time points. The laboratory values outside the normal range were flagged and the clinical relevance was determined by Medical Monitor and Clinical Investigators.

    Time frame: Day 1 to Week 376 (end of study)

  3. Number of Participants Who Reported Treatment-Emergent Graded Laboratory Abnormalities in Hematology Parameters

    Treatment-emergent laboratory abnormalities were defined as an increase of at least one toxicity grade from the LTE baseline at any post-baseline time point, up to and including 30 days after the last study drug dose for subjects who permanently discontinued treatment. Abnormalities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE), Version 4.03, as Grade 1 (mild), Grade 2 (moderate), and Grade 3 (severe) and Grade 4 (life-threatening). Blood samples were collected by venipuncture in the arm at the specified time points. The laboratory values outside the normal range were flagged and the clinical relevance was determined by Medical Monitor and Clinical Investigators.

    Time frame: Day 1 to Week 376 (end of study)

  4. Change From Baseline in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP)

    SBP and DBP were collected at specified timepoints after participants had remained in a resting position for at least 5 minutes. The LTE baseline value was defined as the last available value collected on or prior to the date of the first dose of any study drug in the LTE. Change from the LTE baseline to a postbaseline visit was defined as the postbaseline value minus the LTE baseline value.

    Time frame: Baseline and At Week 312

  5. Change From Baseline in Pulse Rate

    Pulse rate was collected at specified timepoints after participants had remained in a resting position for at least 5 minutes. The LTE baseline value was defined as the last available value collected on or prior to the date of the first dose of any study drug in the LTE. Change from the LTE baseline to a postbaseline visit was defined as the postbaseline value minus the LTE baseline value.

    Time frame: Baseline and At Week 312

  6. Change From Baseline in Respiration Rate

    Changes in respiration rates were collected at specified timepoints after participants had remained in a resting position for at least 5 minutes. The LTE baseline value was defined as the last available value collected on or prior to the date of the first dose of any study drug in the LTE. Change from the LTE baseline to a postbaseline visit was defined as the postbaseline value minus the LTE baseline value.

    Time frame: Baseline and At Week 312

Secondary outcomes

  1. Percentage of Participants Who Achieved American College of Rheumatology (ACR) for 20, 50 and 70

    ACR is the improvement from the parent study baseline in swollen joint count (66 joints) where joints were classified as swollen or not swollen, tender joint count (68) where scoring was performed on different aspects of tenderness, and improvement in 3 of 5 items: Subject pain assessment: pain score form Health Assessment Questionnaire Disability Index (HAQ-DI; scale 0=no difficulty to 3=unable to do) was calculated; Subject global assessment of disease activity: a horizontal visual analog scale (VAS; 0=best to 10=worst) was used to assess the participants arthritis status; Physicians global assessment of disease activity: A horizontal VAS (0=best to 10=worst) was used; Subject's assessment of physical function: HAQ-DI (scale 0=no difficulty to 3=unable to do) was used to calculate participants physical function and Acute-phase reactant value: C-reactive level protein is measured. ACR20, 50 and 70 responders were participants with at least 20%, 50% and 70% achievement respectively.

    Time frame: At Week 312

07

Results

Posted Jul 27, 2026

Participant flow

An open-label, multicenter, long-term extension study (LTE) that assessed safety and efficacy of filgotinib in participants with rheumatoid arthritis. Eligible participants from studies GS-US-417-0301(NCT02889796), GS-US-417-0302(NCT02873936), and GS-US-417-0303(NCT02886728) were enrolled. Participants who had received a fixed dose of filgotinib in the parent studies continued the same dosage, while those who had received placebo were randomized to receive either 100 mg or 200 mg of filgotinib.

Participant flow — Overall Study
MilestoneFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
Started1195336864336
Completed572158400129
Not completed623178464207
Withdrew: Withdrawal by subject1544211864
Withdrew: Adverse event1474512141
Withdrew: Physician decision63254322
Withdrew: Lost to follow-up41114022
Withdrew: Death3742011
Withdrew: Pregnancy7232
Withdrew: Study terminated by sponsor1604310542
Withdrew: Non-compliance with study drug6471
Withdrew: Protocol deviation7162
Withdrew: Missing1000
Withdrew: Participants did not receive study treatment0110

Outcome measures

PrimaryNumber of Participants Who Reported Treatment-Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)

An adverse event (AE) was any untoward medical occurrence in a clinical study participant after administration of an investigational product, whether or not considered related to the study treatment. An SAE was defined as any untoward medical occurrence that, at any dose, resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect or significant medical event. A TEAE was any AE with an onset date on or after the study drug start date and no later than 30 days after permanent discontinuation of study drug or premature discontinuation of study drug.

Time frame:
Day 1 to Week 376 (end of study)
Reported as:
Count of participants · Participants
Number of Participants Who Reported Treatment-Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)
ParticipantsFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
TEAE1071300769283
TESAE2887421287
PrimaryNumber of Participants Who Reported Treatment-Emergent Graded Laboratory Abnormalities in Serum Chemistry Parameters

Treatment-emergent laboratory abnormalities were defined as an increase of at least one toxicity grade from the LTE baseline at any post-baseline time point, up to and including 30 days after the last study drug dose for subjects who permanently discontinued treatment. Abnormalities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE), Version 4.03, as Grade 1 (mild), Grade 2 (moderate), Grade 3 (severe), and Grade 4 (life-threatening). Blood samples were collected by venipuncture in the arm at the specified time points. The laboratory values outside the normal range were flagged and the clinical relevance was determined by Medical Monitor and Clinical Investigators.

Time frame:
Day 1 to Week 376 (end of study)
Reported as:
Count of participants · Participants
Number of Participants Who Reported Treatment-Emergent Graded Laboratory Abnormalities in Serum Chemistry Parameters
ParticipantsFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
ALT (Increased) - Grade 139498274106
ALT (Increased) - Grade 24916389
ALT (Increased) - Grade 3187135
ALT (Increased) - Grade 40100
AST (Increased) - Grade 141498275109
AST (Increased) - Grade 23310275
AST (Increased) - Grade 312283
AST (Increased) - Grade 40100
Bilirubin (Increased) - Grade 163153421
Bilirubin (Increased) - Grade 219486
Bilirubin (Increased) - Grade 30110
Bilirubin (Increased) - Grade 40000
Creatine Kinase (Increased) - Grade 141513822599
Creatine Kinase (Increased) - Grade 283144818
Creatine Kinase (Increased) - Grade 3208123
Creatine Kinase (Increased) - Grade 49064
Creatinine (Increased) - Grade 156113614
Creatinine (Increased) - Grade 247233814
Creatinine (Increased) - Grade 38151
Creatinine (Increased) - Grade 40000
Phosphate (Decreased) - Grade 10000
Phosphate (Decreased) - Grade 287254218
Phosphate (Decreased) - Grade 3353137
Phosphate (Decreased) - Grade 40000
PrimaryNumber of Participants Who Reported Treatment-Emergent Graded Laboratory Abnormalities in Hematology Parameters

Treatment-emergent laboratory abnormalities were defined as an increase of at least one toxicity grade from the LTE baseline at any post-baseline time point, up to and including 30 days after the last study drug dose for subjects who permanently discontinued treatment. Abnormalities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE), Version 4.03, as Grade 1 (mild), Grade 2 (moderate), and Grade 3 (severe) and Grade 4 (life-threatening). Blood samples were collected by venipuncture in the arm at the specified time points. The laboratory values outside the normal range were flagged and the clinical relevance was determined by Medical Monitor and Clinical Investigators.

Time frame:
Day 1 to Week 376 (end of study)
Reported as:
Count of participants · Participants
Number of Participants Who Reported Treatment-Emergent Graded Laboratory Abnormalities in Hematology Parameters
ParticipantsFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
Hemoglobin (Anemia) - Grade 12476016560
Hemoglobin (Anemia) - Grade 286296730
Hemoglobin (Anemia) - Grade 32371310
Hemoglobin (Anemia) - Grade 40000
Hemoglobin (Increased) - Grade 13011128
Hemoglobin (Increased) - Grade 20010
Hemoglobin (Increased) - Grade 30000
Hemoglobin (Increased) - Grade 40000
Leukocytes (Decreased) - Grade 12367611645
Leukocytes (Decreased) - Grade 2120275622
Leukocytes (Decreased) - Grade 38162
Leukocytes (Decreased) - Grade 40000
Lymphocytes (Decreased) - Grade 172235114
Lymphocytes (Decreased) - Grade 22835814452
Lymphocytes (Decreased) - Grade 363163117
Lymphocytes (Decreased) - Grade 40000
Lymphocytes (Increased) - Grade 10000
Lymphocytes (Increased) - Grade 22811178
Lymphocytes (Increased) - Grade 30000
Lymphocytes (Increased) - Grade 40000
Platelets (Decreased) - Grade 152113812
Platelets (Decreased) - Grade 23010
Platelets (Decreased) - Grade 31010
Platelets (Decreased) - Grade 40000
PrimaryChange From Baseline in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP)

SBP and DBP were collected at specified timepoints after participants had remained in a resting position for at least 5 minutes. The LTE baseline value was defined as the last available value collected on or prior to the date of the first dose of any study drug in the LTE. Change from the LTE baseline to a postbaseline visit was defined as the postbaseline value minus the LTE baseline value.

Time frame:
Baseline and At Week 312
Reported as:
Mean · millimeters of mercury (mmHg)
Change From Baseline in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP)
millimeters of mercury (mmHg)Filgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
SBP2 ± 14.11 ± 12.62 ± 14.43 ± 12.9
DBP1 ± 9.90 ± 9.51 ± 9.62 ± 9.0
PrimaryChange From Baseline in Pulse Rate

Pulse rate was collected at specified timepoints after participants had remained in a resting position for at least 5 minutes. The LTE baseline value was defined as the last available value collected on or prior to the date of the first dose of any study drug in the LTE. Change from the LTE baseline to a postbaseline visit was defined as the postbaseline value minus the LTE baseline value.

Time frame:
Baseline and At Week 312
Reported as:
Mean · beats/minute
Change From Baseline in Pulse Rate
beats/minuteFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
Change From Baseline in Pulse Rate2 ± 9.70 ± 10.41 ± 10.71 ± 9.4
PrimaryChange From Baseline in Respiration Rate

Changes in respiration rates were collected at specified timepoints after participants had remained in a resting position for at least 5 minutes. The LTE baseline value was defined as the last available value collected on or prior to the date of the first dose of any study drug in the LTE. Change from the LTE baseline to a postbaseline visit was defined as the postbaseline value minus the LTE baseline value.

Time frame:
Baseline and At Week 312
Reported as:
Mean · breaths/min
Change From Baseline in Respiration Rate
breaths/minFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
Change From Baseline in Respiration Rate0 ± 2.10 ± 2.40 ± 2.00 ± 2.8
SecondaryPercentage of Participants Who Achieved American College of Rheumatology (ACR) for 20, 50 and 70

ACR is the improvement from the parent study baseline in swollen joint count (66 joints) where joints were classified as swollen or not swollen, tender joint count (68) where scoring was performed on different aspects of tenderness, and improvement in 3 of 5 items: Subject pain assessment: pain score form Health Assessment Questionnaire Disability Index (HAQ-DI; scale 0=no difficulty to 3=unable to do) was calculated; Subject global assessment of disease activity: a horizontal visual analog scale (VAS; 0=best to 10=worst) was used to assess the participants arthritis status; Physicians global assessment of disease activity: A horizontal VAS (0=best to 10=worst) was used; Subject's assessment of physical function: HAQ-DI (scale 0=no difficulty to 3=unable to do) was used to calculate participants physical function and Acute-phase reactant value: C-reactive level protein is measured. ACR20, 50 and 70 responders were participants with at least 20%, 50% and 70% achievement respectively.

Time frame:
At Week 312
Reported as:
Number · percentage of participants
Percentage of Participants Who Achieved American College of Rheumatology (ACR) for 20, 50 and 70
percentage of participantsFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
ACR 2093.3 (90.7 to 96.0)89.8 (83.3 to 96.3)86.6 (82.4 to 90.9)77.0 (68.3 to 85.7)
ACR 5075.4 (70.9 to 79.9)81.3 (72.9 to 89.6)69.3 (63.6 to 75.0)59.4 (49.3 to 69.5)
ACR 7057.6 (52.5 to 62.7)59.2 (48.9 to 69.4)49.6 (43.5 to 55.8)42.2 (32.1 to 52.2)

Adverse events

Collected over Day 1 to Week 376 (end of study). Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Filgotinib 200 mg: With Prior Filgotinib Exposure45/1,195 (3.8%)288/1,195 (24.1%)1,071/1,195 (89.6%)
Filgotinob 200 mg: Without Prior Filgotinob Exposure6/335 (1.8%)74/335 (22.1%)300/335 (89.6%)
Filgotinib 100 mg: With Prior Filgotinib Exposure26/863 (3%)212/863 (24.6%)769/863 (89.1%)
Filgotinib 100 mg: Without Prior Filgotinib Exposure13/336 (3.9%)87/336 (25.9%)283/336 (84.2%)
Most frequent serious events
Showing 10 of 496
Most frequent serious events
EventFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
COVID-19Infections and infestations26/11956/33510/8636/336
PneumoniaInfections and infestations16/11954/3354/8636/336
OsteoarthritisMusculoskeletal and connective tissue disorders11/11951/33511/8635/336
Atrial fibrillationCardiac disorders5/11954/3353/8631/336
COVID-19 pneumoniaInfections and infestations8/11953/3357/8634/336
Rheumatoid arthritisMusculoskeletal and connective tissue disorders1/11953/3354/8633/336
Acute respiratory failureRespiratory, thoracic and mediastinal disorders4/11953/3351/8630/336
SepsisInfections and infestations4/11950/3350/8633/336
Intervertebral disc protrusionMusculoskeletal and connective tissue disorders2/11950/3357/8630/336
Transient ischaemic attackNervous system disorders1/11950/3356/8631/336
Most frequent other events
Showing 10 of 17
Most frequent other events
EventFilgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib Exposure
COVID-19Infections and infestations219/119558/335132/86362/336
NasopharyngitisInfections and infestations157/119538/335130/86333/336
Rheumatoid arthritisMusculoskeletal and connective tissue disorders110/119540/335120/86341/336
Upper respiratory tract infectionInfections and infestations131/119544/33599/86340/336
HypertensionVascular disorders90/119538/33591/86335/336
Urinary tract infectionInfections and infestations126/119537/33587/86337/336
HeadacheNervous system disorders93/119533/33572/86324/336
ArthralgiaMusculoskeletal and connective tissue disorders79/119526/33578/86325/336
BronchitisInfections and infestations93/119521/33553/86319/336
Latent tuberculosisInfections and infestations67/119514/33545/86326/336

Baseline characteristics

Safety Analysis Set included all participants who enrolled in the LTE and received at least 1 dose of filgotinib in the LTE.

Age, Continuous
Age, Continuous(years)Filgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib ExposureTotal
Mean53 ± 13.254 ± 12.154 ± 12.455 ± 13.954 ± 12.9
Sex: Female, Male
Sex: Female, Male(Participants)Filgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib ExposureTotal
Female9602676992722198
Male2356816464531
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Filgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib ExposureTotal
Hispanic or Latino2216915072512
Not Hispanic or Latino9682657042642201
Unknown or Not Reported619016
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Filgotinib 200 mg: With Prior Filgotinib ExposureFilgotinob 200 mg: Without Prior Filgotinob ExposureFilgotinib 100 mg: With Prior Filgotinib ExposureFilgotinib 100 mg: Without Prior Filgotinib ExposureTotal
American Indian or Alaska Native82255827192
Asian2516018660557
Native Hawaiian or Other Pacific Islander10001
Black or African American3213212086
White8172335852261861
More than one race00000
Unknown or Not Reported12413332
08

Study locations

345 sites
  • Rheumatology Associates of North Alabama, PC
    Huntsville, Alabama 35801, United States
  • Arthrocare, Arthritis Care & Research PC
    Gilbert, Arizona 85234, United States
  • Arizona Arthritis & Rheumatology Associates, P.C.
    Phoenix, Arizona 85037, United States
  • Arizona Arthritis & Rheumatology Associates, P.C.
    Tucson, Arizona 85704, United States
  • Medvin Clinical Research
    Covina, California 91722, United States
  • C.V. Mehta M.D. Medical Corporation
    Hemet, California 92543, United States
  • University of California San Diego (UCSD) - Perlman Ambulatory Clinic
    La Jolla, California 92037, United States
  • Keck Medicine of USC- Division of Rheumatology
    Los Angeles, California 90033, United States
  • Desert Medical Advances
    Palm Desert, California 92260, United States
  • Stanford University Hospitals and Clinics (Immunology & Rheumatology)
    Palo Alto, California 94305, United States
  • C.V. Mehta Medical Corporation
    Riverside, California 92518, United States
  • Inland Rheumatology Clinical Trials, Inc.
    Upland, California 91786, United States
  • Desert Valley Medical Group
    Victorville, California 92395, United States
  • Medvin Clinical Research
    Whittier, California 90602, United States
  • AARDS Research, Inc.
    Aventura, Florida 33180, United States
  • Clinical Research of West Florida, Inc.
    Clearwater, Florida 33765, United States
  • Omega Research Consultants, LLC
    DeBary, Florida 32713, United States
  • University of Florida College of Medicine, Jacksonville - Rheumatology Research
    Jacksonville, Florida 32207, United States
  • Suncoast Research Group, LLC
    Miami, Florida 33135, United States
  • San Marcus Research Clinic, Inc.
    Miami Lakes, Florida 33014, United States
  • Suncoast Clinical Research, Inc.
    New Port Richey, Florida 34652, United States
  • Omega Research Consultants LLC
    Orlando, Florida 32804, United States
  • IRIS Research and Development, LLC
    Plantation, Florida 33324, United States
  • Jefrey D. Lieberman, MD, P.C.
    Decatur, Georgia 30033, United States
  • Springfield Clinic
    Springfield, Illinois 62702, United States
  • University of Kansas Medical Center
    Kansas City, Kansas 66160, United States
  • Heartland Research Associates, LLC
    Wichita, Kansas 67207, United States
  • Center For Arthritis and Osteoporosis
    Elizabethtown, Kentucky 42701, United States
  • Bluegrass Community Research, Inc.
    Lexington, Kentucky 40504, United States
  • Klein & Associates, M.D., P.A.
    Cumberland, Maryland 21502, United States
  • Arthritis Treatment Center
    Frederick, Maryland 21702, United States
  • Klein & Associates, M.D., P.A.
    Hagerstown, Maryland 21740, United States
  • The Center For Rheumatology And Bone Research
    Wheaton, Maryland 20902, United States
  • Clinical Pharmacology Study Group
    Worcester, Massachusetts 01605, United States
  • Umass Memorial Medical Center- Memorial Campus
    Worcester, Massachusetts 01605, United States
  • Henry Ford Health System
    Detroit, Michigan 48202, United States
  • Shores Rheumatology, PC
    Saint Clair Shores, Michigan 48081, United States
  • St. Paul Rheumatology, PA
    Eagan, Minnesota 55121, United States
  • Arthritis Associates, PLLC
    Hattiesburg, Mississippi 39402, United States
  • North Mississippi Medical Clinics, Inc.
    Tupelo, Mississippi 38801, United States
  • Clayton Medical Research, P.C.
    St Louis, Missouri 63117, United States
  • Arthritis Consultants, Inc.
    St Louis, Missouri 63141, United States
  • Physician Research Collaboration, LLC
    Lincoln, Nebraska 68516, United States
  • Dartmouth-Hitchcock Medical Center
    Lebanon, New Hampshire 03756, United States
  • Arthritis & Osteoporosis Associates
    Freehold, New Jersey 07728, United States
  • Ocean Rheumatology, PA
    Toms River, New Jersey 08755, United States
  • Albuquerque Clinical Trials, Inc.
    Albuquerque, New Mexico 87102, United States
  • NYU Langone Ambulatory Care Brooklyn Heights
    Brooklyn, New York 11201, United States
  • Weill Cornell Physicians At Brooklyn Heights
    Brooklyn, New York 11201, United States
  • Joint And Muscle Research Institute
    Charlotte, North Carolina 28204, United States
  • Physicians East, PA
    Greenville, North Carolina 27834, United States
  • PMG Research of Salisbury
    Salisbury, North Carolina 28144, United States
  • Paramount Medical Research & Consulting, LLC
    Middleburg Heights, Ohio 44130, United States
  • Health Research of Oklahoma
    Oklahoma City, Oklahoma 73103, United States
  • The Oklahoma Center For Arthritis Therapy & Research, Inc.
    Tulsa, Oklahoma 74104, United States
  • East Penn Rheumatology Associates
    Bethlehem, Pennsylvania 18015, United States
  • Altoona Center for Clinical Research
    Duncansville, Pennsylvania 16635, United States
  • Arthritis Group, PC
    Philadelphia, Pennsylvania 19152, United States
  • Clinical Research Center of Reading LLC
    Wyomissing, Pennsylvania 19610, United States
  • PA Regional Center For Arthritis And Osteoporosis Research
    Wyomissing, Pennsylvania 19610, United States
  • Articularis Healthcare Inc., dba Columbia Arthritis Center, PA
    Columbia, South Carolina 29204, United States
  • Carolina Rheumatology & Neurology Assoc., PC
    Myrtle Beach, South Carolina 29572, United States
  • Articularis Healthcare Group d/b/a ACME Research
    Orangeburg, South Carolina 29118, United States
  • Articularis Healthcare Group d/b/a Low Country Rheumatology
    Summerville, South Carolina 29486, United States
  • Ramesh C. Gupta, M.D.
    Memphis, Tennessee 38119, United States
  • Diagnostic Group
    Beaumont, Texas 77701, United States
  • Trinity Universal Research Associates, Inc
    Carrollton, Texas 75007, United States
  • Adriana Pop-Moody MD Clinic PA
    Corpus Christi, Texas 78404, United States
  • Arthritis Centers Of Texas
    Dallas, Texas 75246, United States
  • Southwest Rheumatology Research, LLC
    Mesquite, Texas 75150, United States
  • Trinity Universal Research Associates, Inc
    Plano, Texas 75024, United States
  • Arthritis & Osteoporosis Center of South Texas
    San Antonio, Texas 78232, United States
  • Ceim Investigaciones Medicas Srl
    Ciudad Autonoma, Buenos Aires 1425, Argentina
  • CIMEL
    Buenos Aires, B1824KAJ, Argentina
  • Onganizacion Medica de Investigacion S.A (OMI)
    Ciudad Autonoma Buenos Aires, C1015ABO, Argentina
  • Mautalen Salud e Investigación
    Ciudad Autonoma Buenos Aires, C1128AAF, Argentina
  • Consultorios Reumatológicos Pampa
    Ciudad Autonoma de Buenos Aire, C1428DZF, Argentina
  • Investigaciones Reumatologicas Y Osteologicas (IRO) SRL
    Ciudad Autonoma, C1114AHH, Argentina
  • Instituto De Reumatologia
    Mendoza, 5500, Argentina
  • Instituto Médico Cer
    Quilmes, B1878DVB, Argentina
  • Instituto Iari
    San Isidro, Argentina
  • Cer San Juan, Centro Polivalente de Asistencia e Investigacion Clinica
    San Juan, CP5400, Argentina
  • Centro Medico Privado de Reumatología
    San Miguel de Tucumán, T4000AXL, Argentina
  • Rheumatology Research Unit
    Maroochydore, Queensland 4558, Australia
  • RK Will Pty Ltd
    Victoria Park, Western Australia 6100, Australia
  • Southern Clinical Research Pty Ltd
    Hobart, 7000, Australia
  • Cliniques Universitaires Saint-Luc
    Brussels, 1200, Belgium
  • Reumaclinic Genk
    Genk, 3600, Belgium
  • Universitaire Ziekenhuizen (UZ) Leuven - Gasthuisberg
    Leuven, 3000, Belgium
  • Zna Jan Palfijn
    Merksem, 2170, Belgium
  • "Medical Center Help" EOOD
    Dobrich, 9300, Bulgaria
  • "Medical Center- Hipokrat 2000" OOD
    Haskovo, 6300, Bulgaria
  • "UMHAT - Kaspela" EOOD
    Plovdiv, 4001, Bulgaria
  • "MHAT Lyulin" EAD, Department of Rheumatology
    Sofia, 1336, Bulgaria
  • Medical Center "N. I. Pirogov" EOOD
    Sofia, 1612, Bulgaria
  • "DCC Equita" EOOD
    Varna, 9000, Bulgaria
  • MHAT "Sveta Petka" AD, Department of Internal Diseases
    Vidin, 3700, Bulgaria
  • The Waterside Clinic
    Barrie, L4M6L2, Canada
  • Centre De Recherche Musculo Squelettique
    Trois-Rivières, G8Z1Y2, Canada
  • Quantum Research Santiago
    Santiago, 7500588, Chile

Showing the first 100 of 345 sites across 32 countries. Choose a country and city above to see the rest.

09

References and documents

Publications

  • Tanaka Y, Kondo A, Isaji H, Van Beneden K, Mutter R, Takeuchi T. Integrated Safety Analysis of Filgotinib in Japanese Patients With Moderately to Severely Active Rheumatoid Arthritis Over a Treatment Duration of up to 5 Years. Mod Rheumatol. 2026 Mar 17:roag029. doi: 10.1093/mr/roag029. Online ahead of print. PubMed 41841789 ↗
  • Tanaka Y, Matsubara T, Atsumi T, Amano K, Ishiguro N, Hirata S, Yamaoka K, Combe BG, Nash P, Genovese M, Pechonkina A, Liu J, Kondo A, Fukada H, De Leonardis F, Takeuchi T. Safety and efficacy of filgotinib in Japanese patients with rheumatoid arthritis: Week 156 interim results in FINCH 4. Mod Rheumatol. 2025 Apr 8;35(3):425-433. doi: 10.1093/mr/roae099. PubMed 39506562 ↗
  • Balsa A, Wassenberg S, Tanaka Y, Tournadre A, Orzechowski HD, Rajendran V, Lendl U, Stiers PJ, Watson C, Caporali R, Galloway J, Verschueren P. Effect of Filgotinib on Body Mass Index (BMI) and Effect of Baseline BMI on the Efficacy and Safety of Filgotinib in Rheumatoid Arthritis. Rheumatol Ther. 2023 Dec;10(6):1555-1574. doi: 10.1007/s40744-023-00599-1. Epub 2023 Sep 25. PubMed 37747626 ↗
  • Combe B, Besuyen R, Gomez-Centeno A, Matsubara T, Sancho Jimenez JJ, Yin Z, Buch MH. Geographic Analysis of the Safety and Efficacy of Filgotinib in Rheumatoid Arthritis. Rheumatol Ther. 2023 Feb;10(1):35-51. doi: 10.1007/s40744-022-00494-1. Epub 2022 Oct 7. PubMed 36205910 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03025308
Lead sponsor
Alfasigma S.p.A.
Collaborators
Gilead Sciences
Responsible party
Sponsor
First posted
Jan 19, 2017
Start date
Feb 28, 2017
Primary completion
May 16, 2025
Completion
May 16, 2025
Results posted
Jul 27, 2026
Last update
Jul 27, 2026

Study contacts

Alfasigma Study Director
study director · Alfasigma S.p.A.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: GLPG0634

Start the discussion