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Efficacy and Safety of Valdecoxib and Naproxen in Treating the Signs and Symptoms of Rheumatoid Arthritis (RA) in a Severe Rheumatoid Arthritis Patients

Clinical Protocol for a Multicenter, Double-Blind, Randomized, Placebo Controlled, Comparison of the Efficacy and Safety of Bextra® (Valdecoxib) 10 mg Once Daily and Naproxen 500 mg Twice Daily in Treating the Signs and Symptoms of Rheumatoid Arthritis (RA) in a Severe RA Population

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00650455
Enrollment
489
Registered
2008-04-01
Start date
2003-02-28
Completion date
2005-01-31
Last updated
2008-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arthritis, Rheumatoid

Keywords

valdecoxib, severe rheumatoid arthritis

Brief summary

The objectives of the study were to evaluate the efficacy, safety, and tolerability of valdecoxib 10 mg once daily (QD) or naproxen 500 mg twice daily (BID) versus placebo, and to assess the efficacy of valdecoxib 10 mg QD versus naproxen 500 mg BID, in treating the signs and symptoms of rheumatoid arthritis (RA) in a severe Rheumatoid Arthritis population.

Interventions

DRUGplacebo

placebo tablet every morning and capsule every evening for 12 weeks

valdecoxib 10 mg tablet once daily for 12 weeks

DRUGnaproxen

naproxen 500 mg capsule twice daily for 12 weeks

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* A diagnosis of severe rheumatoid arthritis (RA) for at least 6 months * The Rheumatoid Arthritis must have been treated with a stable regimen including a non-steroidal anti-inflammatory drug (NSAID), as well as methotrexate for at least 12 weeks -OR- an NSAID (for at least 12 weeks plus a tumor necrosis factor inhibitor (i.e., adalimumab \[Humira®\] for a minimum of 5 doses on a regular schedule, etanercept \[Enbrel®\] for 6 weeks, infliximab (Remicade®) for 3 doses and currently on a stable regimen of infusions not more than every 8 weeks)

Exclusion criteria

* A diagnosis of any other inflammatory arthritis or a secondary, noninflammatory type of arthritis (eg, osteoarthritis (OA) or fibromyalgia) that, in the investigator's opinion, was symptomatic enough to interfere with the evaluation of the effect of valdecoxib on the patient's primary diagnosis of Rheumatoid Arthritis were excluded from the study

Design outcomes

Primary

MeasureTime frame
ACR-20 criteria responderWeek 12

Secondary

MeasureTime frame
Duration of morning stiffnessScreening, Baseline, Week 1, Week 6, and Week 12
Incidence and time to withdrawal due to insufficient clinical responseStudy endpoint
Physician's Global Assessment of Disease ActivityScreening, Baseline, Week 1, Week 6, and Week 12
swollen joint countScreening, Baseline, Week 1, Week 6, and Week 12
Adverse eventsBaseline, Week 1, Week 6, and Week 12
Average rescue medication usage per dayStudy endpoint
Short Form-36 Acute Health SurveyBaseline, Week 1, Week 6, and Week 12
tender joint countScreening, Baseline, Week 1, Week 6, and Week 12
Patient's Global Assessment of Disease ActivityScreening, Baseline, Week 1, Week 6, and Week 12
C-reactive proteinScreening, Baseline, Week 1, Week 6, and Week 12
laboratory testsScreening, Baseline, Week 1, Week 6, and Week 12
vital signsScreening, Baseline, Week 1, Week 6, and Week 12
physical examinationsScreening and Week 12
ACR-NStudy endpoint
Patient Treatment Satisfaction ScaleWeek 1 and Week 6
Patient's assessment of arthritis pain (VAS)Screening, Baseline, Week 1, Week 6, and Week 12
Health Assessment Questionnaire (HAQ) Disability IndexScreening, Baseline, Week 1, Week 6, and Week 12
One-Week Severity of Dyspepsia AssessmentBaseline, Week 1, and Week 12

Countries

Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026