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This study aimed to identify biomarkers that could predict the efficacy of the anti-TNF alpha drug Adalimumab in patients with ankylosing spondylitis. It included patients aged 18 to 75 who met the diagnostic criteria and followed national guidelines for TNF antagonist use. It was conducted in Phase 4 and has been completed.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion Criteria: * AS according to Portuguese Society of Rheumatology (SPR) guidelines (1984 modified New York Criteria, but allowing the use of MRI as imagiological criteria) * Patient enrolment followed national guidelines for TNF antagonist use for the treatment of AS * Adults between 18 to 75 years * Ability to provide informed consent * Corticosteroid therapy allowed (equivalent to ≤ 10 mg prednisone) and / or NSAID(nonsteroidal antiinflammatory drug), stable dose in 4 weeks before study initiation * Adequate contraception (barrier or hormonal) in men and women of childbearing age (patients and their partners * Adequate renal and hepatic function (2 times ULN) Exclusion Criteria: * Current pregnancy or breastfeeding * Previous treatment with biologic DMARD's (disease-modifying antirheumatic drug) * Intraarticular injections or infiltrations of extraaxial joints and tendons within 28 days before or at screening, or intraarticular injections of sacroiliac joints ≤ 28 days before screening * History of rheumatic disorder other than AS * Other forms of spondylarthritis than AS * Any uncontrolled medical condition (e.g., uncontrolled diabetes mellitus, unstable ischemic heart disease) * History or signs of demyelinating disease * Malignancy (except for completely treated squamous or basal cell carcinoma) * Moderate to severe heart failure (NYHA class III/IV) Positive serology for hepatitis B, hepatitis C, or human immunodeficiency virus * Active or latent tuberculosis (TB) or histoplasmosis or other severe infections such as sepsis, and opportunistic infections * Infections requiring hospitalization or intravenous treatment with antibiotics within 30 days or oral treatment with antibiotics within 14 days before enrollment * Ankylosis of the spine (syndesmophytes presence at all levels from D12 to S1 in X-ray (XR) lateral view) * Hypersensitivity to the active substance or to any of the excipients