Conditions: Juvenile Idiopathic Arthritis
Keywords: Juvenile Idiopathic Arthritis golimumab juvenile arthritis GO KIDS anti TNF alpha medications juvenile psoriatic arthritis
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 173
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the efficacy and safety of golimumab (CNTO 148) in patients who have active juvenile idiopathic arthritis (JIA) and at least 5 joints with active arthritis that have poor response to methotrexate.

Detailed description:
Approximately 170 juvenile patients will take part in the study worldwide. All patients will receive 30mg/m2 (milligrams per meter squared, up to 50 mg per dose) of golimumab subcutaneously (injection under the skin) every 4 weeks from Week 0 through Week 12. At Week 16, patients who have shown at least a 30 percent improvement in their signs and symptoms from when they started the study will be randomized to receive either placebo (sham medicine injection) or 30 mg/m2 of golimumab injections every 4 weeks from week 16 through week 48. If a patient gets markedly worse and is receiving placebo injections, they will be restarted on golimumab at the next scheduled visit and will continue on golimumab. Patients can leave the study at any time without question. Between the Week 48 analyses timepoint to Week 144, which is subsequently amended to Week 248, all patients will receive golimumab 30mg/meter squared, unless, by measurements, they have been nearly cured (clinical remission) by being on placebo, whereby they will be discontinued from the study. Patients may have a change in background treatment after Week 48 based on therapeutic effect. Patients will continue active treatment after Week 48 in a long-term extension until Week 144, which is subsequently amended to Week 248. All patients will receive their fixed dose of commercial methotrexate throughout the study duration. Safety will be monitored up to 152 week, which is subsequently amended to 256 weeks including drawing blood and looking at laboratory tests, vital signs (eg, blood pressure), and the frequency and type of adverse events (side effects).

Arms:
arm 1: All patients will receive golimumab 30 mg per square meter every 4 weeks from Week 0 through Week 12. Patients who have a clinical response at Week 16 and who are randomly allocated to golimumab, will receive 30 mg per square meter every 4 weeks through Week 48. Patients will continue to receive golimumab 30 mg per square meter after Week 48 in a long-term extension until Week 248. All patients will receive their fixed dose of commercial methotrexate throughout the study duration. arm 2: All patients will receive golimumab 30 mg per square meter every 4 weeks from Week 0 through Week 12. Patients who have a clinical response to golimumab at Week 16 and are randomly allocated to placebo, will receive placebo every 4 weeks through Week 48. However, patients receiving placebo and who will have lack/loss of clinical response will be eligible to receive golimumab 30 mg per square meter every 4 weeks through Week 48. At Week 48, patients do not have a clinical response will begin to receive golimumab 30 mg per square meter in a long-term extension until Week 248 and patients who have a clinical response will be discontinued from the study. All patients will receive their fixed dose of commercial methotrexate throughout the study duration.

Interventions: intervention 1: CNTO 148 (Golimumab) intervention 2: Placebo intervention 3: Methotrexate
Intervention descriptions: intervention 1: Patients will receive subcutaneous (SC) (under the skin) injection of golimumab 30 mg per square meter every 4 weeks from Week 0 through Week 248. intervention 2: Patients who have a clinical response to golimumab at Week 16 and are randomly allocated to placebo, will receive SC injection of placebo every 4 weeks from Week 16 through Week 48. intervention 3: All patients will receive their fixed dose of commercial methotrexate (10 to 30 mg per square meter) weekly throughout the study duration.

Protocol document: