A Study to Assess Efficacy and Safety of Filgotinib in Ankylosing Spondylitis (TORTUGA)
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ClinicalTrials.gov Identifier: NCT03117270 |
Recruitment Status :
Completed
First Posted : April 17, 2017
Last Update Posted : August 13, 2018
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Ankylosing Spondylitis | Drug: filgotinib Drug: Placebo Oral Tablet | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 116 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-blind, Placebo-controlled, Multicenter, Phase II Study to Assess the Efficacy and Safety of Filgotinib Administered for 12 Weeks to Subjects With Active Ankylosing Spondylitis |
Actual Study Start Date : | March 7, 2017 |
Actual Primary Completion Date : | July 2, 2018 |
Actual Study Completion Date : | July 2, 2018 |

Arm | Intervention/treatment |
---|---|
Experimental: oral filgotinib tablets |
Drug: filgotinib
one filgotinib oral tablet q.d. |
Placebo Comparator: placebo tablets |
Drug: Placebo Oral Tablet
one placebo oral tablet q.d. |
- Ankylosing Spondylitis disease activity score (ASDAS) in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To evaluate the effect of filgotinib on the AS disease activity score
- Assessment of SpondyloArthritis international Society (ASAS) in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To evaluation the effect of filgotinib on the ASAS score in AS patients
- Assessment by a trained joint assessor of 44 joints for tenderness (counting the number or tender joints - TJC) and swelling (counting the number of swollen joints - SJC) in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To evaluate the effect of filgotinib on joint tenderness and swelling in AS patient
- Assessement of the Bath Ankylosing Spondylitis Disease Activity Index in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To assess the effect of filgotinib on BAS disease activity index in AS patients
- Assessment of the Bath Ankylosing Spondylitis Functional Index in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To assess the effect of filgotinib on BAS functional index in AS patients
- Assessment of the Bath Ankylosing Spondylitis Metrology Index in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To assess the effect of filgotinib on BAS metrology index in AS patients
- Assessment Spondyloarthritis Research Consortium of Canada MRI in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To assess the effect of filogtinib on Spondyloarthritis Research Consortium of Canada MRI in AS patients
- Assessment of the Maastricht Ankylosing Spondylitis Enthesitis Score in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To assess the effect of filgotinibe on Maastricht Ankylosing Spondylitis Enthesitis Score in AS patients
- Assessment of FACIT fatigue scale in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To assess the effect of filgotinib on FACIT fatigue scale in AS patients
- Assessment of SF-36 health survey in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To assess the effect of filgotinib on SF-36 health survey in AS patients
- Assessment of Ankylosing Spondylitis Quality of Life questionnaire (ASQoL) in filgotinib treated subjects as compared to placebo [ Time Frame: week 12 ]To assess the effect of filgotinib on ASQoL in AS patients
- Difference between filgotinib treated subjects and placebo subjects in the number of Adverse events [ Time Frame: from baseline until the final follow up visit (week 16) ]To assess safety and tolerability of filgotinib in AS patients
- Difference in the number of filgotinib subjects and placebo subjects with abnormal Clinical laboratory evaluations [ Time Frame: from baseline until the final follow up visit (week 16) ]To assess safety and tolerability of filgotinib in AS patients
- Difference in the number of filgotinib treated subjects and placebo subjects with abnormal vital signs [ Time Frame: from baseline until the final follow up visit (week 16) ]To assess safety and tolerability of filgotinib in AS patients
- Difference between the number of filgotinib treated subjects and placebo subjects with abnormal physical examination [ Time Frame: from baseline until the final follow up visit (week 16) ]To assess safety and tolerability of filgotinib in AS patients
- Difference between the number of filgotinib treated subjects and placebo with abnormal ECG [ Time Frame: At baseline, end of study visit (week 12) and final follow up visit (week 16) ]To assess safety and tolerability of filgotinib in AS patients
- Difference between the number of filgotinib treated subjects and placebo with abnormal radiographic assessment [ Time Frame: At baseline and end of study visit (week 12) ]To assess safety and tolerability of filgotinib in AS patients

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Key Inclusion Criteria:
- Male or female subjects who are ≥18 years of age on the day of signing informed consent.
- Diagnosis of moderate to severe ankylosing spondylitis with documented evidence of fulfilling the Modified New York (NY) criteria
- Have active ankylosing spondylitis with a BASDAI ≥4 (numeric rating scale [NRS] 0-10) and spinal pain ≥4 (0-10 NRS) (based on BASDAI question 2, see protocol) at screening and baseline.
- Have had a documented inadequate response to NSAIDs including cyclooxygenase-2 (COX-2) inhibitors.
- If using cDMARD therapy, stable dose for at lead 4 weeks prior to Baseline.
- If using non-drug therapies (including physical therapies), these should be kept stable during screening.
- Male and female subjects of childbearing potential who engage in heterosexual intercourse must agree to use highly effective methods of contraception as described in the protocol.
Key Exclusion Criteria:
- Use of JAK inhibitors, investigational or approved, at any time, including filgotinib;
- Prior use of more than one TNF inhibitor, at any time.
- Use of oral steroids at a dose >10 mg/day of prednisone or prednisone equivalent or at a dose that hasn't been stable for at least 4 weeks prior to baseline;
- Any therapy by intra-articular injections (e.g. corticosteroid, hyaluronate) within 4 weeks prior to screening;
- Use of more than 1 NSAID or COX-2 inhibitor.
- Contraindication to MRI.
- History of known or suspected complete ankylosis of the spine.
- Presence of very poor functional status or unable to perform self-care.
- Have undergone surgical treatment for ankylosing spondylitis within the last 12 weeks prior to screening.
- Administration of a live or attenuated vaccine within 12 weeks prior to baseline.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03117270

Study Director: | Pille Harrison, MD, DPhil, MRCP (UK) | Galapagos NV |
Responsible Party: | Galapagos NV |
ClinicalTrials.gov Identifier: | NCT03117270 |
Other Study ID Numbers: |
GLPG0634-CL-223 |
First Posted: | April 17, 2017 Key Record Dates |
Last Update Posted: | August 13, 2018 |
Last Verified: | August 2018 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Spondylitis Spondylarthritis Spondylitis, Ankylosing Bone Diseases, Infectious Infections Bone Diseases Musculoskeletal Diseases |
Spinal Diseases Arthritis Joint Diseases Axial Spondyloarthritis Spondylarthropathies Ankylosis |