A Study of CC-99677 in Participants With Active Ankylosing Spondylitis (AS SpA axSpA)
Spondylitis, Ankylosing
About this trial
This is an interventional treatment trial for Spondylitis, Ankylosing focused on measuring Ankylosing Spondylitis, CC-99677, MK2inhibitor, Spinal Diseases, Bone Diseases, Musculoskeletal Diseases, Arthritis, Joint Diseases
Eligibility Criteria
Inclusion Criteria:
- Diagnosis of Ankylosing Spondylitis (AS) fulfilling the modified New York criteria
- Active axial disease at Screening and Baseline defined by a Bath Ankylosing
- Spondylitis Disease Activity Index (BASDAI) score ≥ 4 and Total Back Pain ≥ 4
- Failed prior treatment with at least 2 NSAIDs for at least 4 weeks each
- Participant has never received a biologic therapy eg, tumor necrosis factor (TNF) antagonist or monoclonal antibody [mAb] against IL-17A (biologic naive main study), or have taken more than one biologic therapy (biologic-failure substudy) for the treatment of AS
Exclusion Criteria:
- Radiographic evidence of total ankylosis of the spine
- Clinically significant back pain caused by diseases other than AS
- Concurrent treatment or treatment within the 6 months prior to Baseline with cell depleting biologic agents
- Participation in any study of an investigational drug, including those for COVID-19
- History of malignancy
- Oral corticosteroids (prednisone or equivalent) > 10 mg/day systemically for ≥ 2 weeks prior to Baseline Visit
Sites / Locations
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Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Arm 6
Experimental
Experimental
Placebo Comparator
Experimental
Experimental
Placebo Comparator
Administration of CC-99677 150 mg QD PO
Administration of CC-99677 60mg QD PO
Administration of Placebo QD PO
Administration of CC-99677 150 mg QD PO.
Administration of CC-99677 60mg QD PO.
Placebo additional dose cohort
49 participants will be randomized to CC-99677 150 mg in biologic naive main study
49 participants will be randomized to CC-99677 60 mg in biologic naive main study
49 participants will be randomized to placebo in biologic naive main study
20 participants will be randomized to CC-99677 150 mg in biologic-failure substudy
20 participants will be randomized to CC-99677 60 mg in biologic-failure substudy
10 participants will be randomized to placebo in biologic-failure substudy