Enbrel-Juvenile Idiopathic Arthritis (JIA) Use Results Survey [All-Case Surveillance]

Serious treatment-related adverse events are defined as any events that lead to death, life-thretening, hospitalization or prolonged hospitalization, a permanent or remarkable disorder/dysfunction, congenital anormaly/congenital deficiency, or other medically significant events or disorder.

Time frame: 24 weeks

Population: The safety analysis population consisted of the participants who received 10 mg or 25 mg lyophilized etanercept (genetical recombination) for subcutaneous injection indicated for polyarticular JIA after the marketing authorization had been granted.

Adverse events are all unfavorable events, including clinically problematic abnormal changes in laboratory test values, which develop in participants after the administration of Etanercept, irrespective of causal relationship to Etanercept. The causal relationship between an adverse event and Etanercept was evaluated by the sponsor.

Time frame: 24 weeks

Population: The safety analysis population consisted of the participants who received 10 mg or 25 mg lyophilized etanercept (genetical recombination) for subcutaneous injection indicated for polyarticular JIA after the marketing authorization had been granted.

Adverse events are all unfavorable events, including clinically problematic abnormal changes in laboratory test values, which develop in participants after the administration of Etanercept, irrespective of causal relationship to Etanercept. The causal relationship between an adverse event and Etanercept was evaluated by the sponsor. Unlisted treatment-related adverse events were confirmed with listed adverse drug reactions specified in Japanese package insert.

Time frame: 24 weeks

Population: The safety analysis population consisted of the participants who received 10 mg or 25 mg lyophilized etanercept (genetical recombination) for subcutaneous injection indicated for polyarticular JIA after the marketing authorization had been granted.

The Disease Activity Score Based on 28-joints Count based (DAS28-based) EULAR response criteria were used to measure individual response as none, good, and moderate, depending on the extent of change from baseline and the level of disease activity reached. Good responders: change from baseline \>1.2 with DAS28 =\< 3.2; moderate responders: change from baseline \>1.2 with DAS28 \>3.2 or change from baseline \>0.6 to =\<1.2 with DAS28 =\<5.1; non-responders: change from baseline =\< 0.6 or change from baseline \>0.6 and =\<1.2 with DAS28 \>5.1.

Time frame: 24 weeks

Population: The efficacy analysis population consisted of the participants in whom DAS28 (4/ESR) was calculated (N = number of participants evaluated). The last observation carried forward (LOCF) method was used to impute missing data.

Percentage of participants in whom the efficacy of etanercept was assessed as either markedly effective or effective.

Time frame: 24 weeks

Population: The efficacy analysis population consisted of the participants in whom DAS28 (4/ESR) was calculated (N = number of participants evaluated). The last observation carried forward (LOCF) method was used to impute missing data.