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Study Comparing Etanercept 50 mg Once Weekly to 25 mg Twice Weekly in Patients With Ankylosing Spondylitis

This study has been completed.
Information provided by:
Wyeth is now a wholly owned subsidiary of Pfizer Identifier:
First received: January 4, 2007
Last updated: NA
Last verified: January 2007
History: No changes posted
The purpose of this study is to compare efficacy, pharmacokinetics, and safety of investigational formulations of etanercept administered as 50 mg once weekly with 25 mg twice weekly and placebo in patients with ankylosing spondylitis (AS).

Condition Intervention Phase
Ankylosing Spondylitis Drug: Etanercept Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo Controlled Trial Evaluating the Safety and Efficacy of Etanercept 50 mg Once Weekly Compared With 25 mg Twice Weekly in Subjects With Ankylosing Spondylitis

Resource links provided by NLM:

Further study details as provided by Wyeth is now a wholly owned subsidiary of Pfizer:

Primary Outcome Measures:
  • The primary objective is to assess the efficacy (measured by % of subjects achieving ASAS 20 (Assessments in Ankylosing Spondylitis 20%) at week 12) and safety of etanercept 50 mg once weekly.

Estimated Enrollment: 350
Study Start Date: June 2004
Estimated Study Completion Date: February 2005

Ages Eligible for Study:   18 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Diagnosis of AS, as defined by Modified New York Criteria for Ankylosing Spondylitis.
  • Active AS, defined by average of visual analog scale (VAS) of ≥ 30 for duration and intensity of morning stiffness and at least 2 of the following: VAS for patient global assessment ≥ 30; average of VAS for nocturnal and total pain ≥ 30; BASFI ≥ 30 (all scores on a scale of 0 to 100).

Exclusion Criteria:

  • Complete ankylosis (fusion) of spine.
  • Previous treatment with etanercept, antibody to Tumor Necrosis Factor α (TNFα), or other TNFα inhibitors or other biologic agents.
  • Use of disease modifying antirheumatic drugs (DMARDs) other than hydroxychloroquine, sulphasalazine, and methotrexate within 4 weeks of baseline. Subjects treated with hydroxychloroquine, sulphasalazine, and methotrexate may continue these drugs during this study but doses must be held stable for 4 weeks before baseline examination and for the duration of the study.
  • Receipt of multiple nonsteroidal anti-inflammatory drugs (NSAIDs) at baseline.
  • Dose of NSAID changed within 2 weeks of baseline evaluation.
  • Dose of prednisone >10 mg/day (or equivalent) or changed within 2 weeks of baseline evaluation.
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Please refer to this study by its identifier: NCT00418548

Sponsors and Collaborators
Wyeth is now a wholly owned subsidiary of Pfizer
Study Director: Medical Monitor Wyeth is now a wholly owned subsidiary of Pfizer
  More Information Identifier: NCT00418548     History of Changes
Other Study ID Numbers: 0881A3-314
Study First Received: January 4, 2007
Last Updated: January 4, 2007

Additional relevant MeSH terms:
Spondylitis, Ankylosing
Bone Diseases, Infectious
Bone Diseases
Musculoskeletal Diseases
Spinal Diseases
Joint Diseases
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents
Antirheumatic Agents
Gastrointestinal Agents
Immunosuppressive Agents
Immunologic Factors processed this record on August 22, 2017