Multicenter Study Evaluating Certolizumab Pegol Compared to Placebo in Subjects With axSpA Without X-ray Evidence of AS


About this study

Patients with active Axial Spondyloarthritis without x-ray evidence of Ankylosing Spondylitis and with signs of inflammation will be randomly assigned to receive certolizumab pegol (CZP) 200 mg every two weeks or placebo. The primary objective is to demonstrate the efficacy of CZP in these patients.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • At least 18 years old at the start of Screening Visit
  • A documented diagnosis of adult-onset axial SpondyloArthritis (axSpA) and meet the Assessment of SpondyloArthritis International Society (ASAS) criteria for axSpA
  • Subjects must have had back pain for at least 12 months before Screening
  • No sacroiliitis defined by Modified New York (mNY) criteria on sacroiliac (SI) x-rays
  • Active disease at Screening as defined by
    • Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) score >= 4
    • Spinal pain ≥4 on a 0 to 10 Numerical Rating Scale (NRS)
  • Inadequate response to, have a contraindication to, or have been intolerant to at least 2 Nonsteroidal Anti-Inflammatory Drugs (NSAIDs)

Exclusion Criteria:

  • Diagnosis of AS or any other Inflammatory Arthritis
  • Prior treatment with any experimental biological agents for treatment of Axial SpondyloArthritis (SpA)
  • Exposure to more than 1 TNF-antagonist or primary failure to TNF antagonist therapy
  • History of or current chronic or recurrent infections
  • Subjects with known Tuberculosis (TB) infection, at high risk of acquiring TB infection, or latent Tuberculosis (LTB)
  • Recent live vaccination
  • Concurrent malignancy or a history of malignancy
  • Class III or IV congestive heart failure - New York Heart Association (NYHA)
  • Demyelinating disease of the central nervous system
  • Female subjects who are breastfeeding, pregnant or plan to become pregnant during the study or within 3 months following the last dose of the investigational product
  • Subjects with any other condition which, in the investigator's judgment, would make the subject unsuitable for inclusion in the study

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Kerry Wright, M.B.B.S.

Closed for enrollment

More information


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