This survey is conducted to investigate safety and efficacy under the post marketed drug utilization on the patient with rheumatoid arthritis (only for patients with an inadequate response to prior conventional therapy) at the time of switching regimen from 10 mg twice a week administration to 25 mg once a week administration.
Implemented as a Special Investigation by Central Registration System
Study Type
OBSERVATIONAL
Enrollment
3
10 to 25 mg of etanercept (genetical recombination) reconstituted in 1 mL of water for injection (JP) administered twice weekly as a subcutaneous injection or 25 to 50 mg of etanercept (genetical recombination) administered once weekly as a subcutaneous injection, are usually the recommended dose for adults.
Taihaku Sakura Hospital
Sendai, Miyagi, Japan
Number of Participants With Treatment Related Adverse Events
Adverse events are defined as any unfavorable events, including clinically significant abnormal changes in laboratory test values, which develop in participants after the administration of etanercept regardless of the causal relationship to etanercept. The causal relationship between an adverse event and etanercept was evaluated by the sponsor.
Time frame: 12 weeks
Disease Activity Score of 28 Joints (DAS28: 4/Erythrocyte Sedimentation Rate [ESR])
DAS28-4 (ESR) was calculated from SJC and TJC using 28 joints count, ESR (mm/hour) and PtGA of disease activity (participant rated arthritis activity assessment). Total score range: 0-9.4, higher score=more disease activity. DAS28-4 (ESR) \<= 3.2 implied low disease activity and \>3.2 to 5.1 implied moderate to high disease activity, and DAS28-4 (ESR) \<2.6 = remission. DAS28-3 (ESR) was calculated from SJC and TJC using 28 joints count, ESR (mm/hour). Total score range: 0-9.4, higher score=more disease activity. DAS28-3 (ESR) \<= 3.2 implied low disease activity and \>3.2 to 5.1 implied moderate to high disease activity, and DAS28-3 (ESR) \<2.6 = remission.
Time frame: 12 weeks
Change in Disease Activity Score of 28 Joints (DAS28: 4/Erythrocyte Sedimentation Rate [ESR])
DAS28-4 (ESR) was calculated from SJC and TJC using 28 joints count, ESR (mm/hour) and PtGA of disease activity (participant rated arthritis activity assessment). Total score range: 0-9.4, higher score=more disease activity. DAS28-4 (ESR) \<= 3.2 implied low disease activity and \>3.2 to 5.1 implied moderate to high disease activity, and DAS28-4 (ESR) \<2.6 = remission. DAS28-3 (ESR) was calculated from SJC and TJC using 28 joints count, ESR (mm/hour). Total score range: 0-9.4, higher score=more disease activity. DAS28-3 (ESR) \<= 3.2 implied low disease activity and \>3.2 to 5.1 implied moderate to high disease activity, and DAS28-3 (ESR) \<2.6 = remission.
Time frame: 12 weeks
Physician's Assessment of Clinical Effect of Etanercept on the Symptoms of Rheumatoid Arthritis and Change in Laboratory Values
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On the basis of how well the clinical symptoms of rheumatoid arthritis were controlled at baseline, the physician assessed the clinical effect of etanercept in two grades: "effective" or "ineffective". To assess the clinical efficacy of etanercept, the degrees of the symptoms of rheumatoid arthritis and laboratory test values were compared between at baseline and at the 12th week of the investigation.
Time frame: 12 weeks