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Ankylosing SpondylitisPhase 3NCT00418548

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

A Phase 3 study testing Etanercept in people with Ankylosing Spondylitis, run by Wyeth is now a wholly owned subsidiary of Pfizer.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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). Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Ankylosing Spondylitis
What is being tested?
Etanercept
How many people
350 participants
Where
No sites listed yet
Study dates
Jun 2004to Feb 2005
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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).

Who cannot join

  • 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.

About this study

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

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).

Being tested
Etanercept
Medical subject headings
Spondylitis, Ankylosing

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Jan 2007 (estimated)
  2. Study startJun 2004
  3. Study completionFeb 2005

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
350 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00418548
Sponsor's protocol ID
0881A3-314
Status last verified
Jan 2007
First submitted
4 Jan 2007
Last updated
5 Jan 2007
Results posted
No

Publications

  • Baraliakos X, Szumski A, Koenig AS, Jones H. The role of C-reactive protein as a predictor of treatment response in patients with ankylosing spondylitis. Semin Arthritis Rheum. 2019 Jun;48(6):997-1004. doi: 10.1016/j.semarthrit.2018.10.019. Epub 2018 Nov 2.

    PubMed 30473179

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Etanercept in people with Ankylosing Spondylitis, run by Wyeth is now a wholly owned subsidiary of Pfizer.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Jan 2007. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

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.. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00418548, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jan 2007.

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