Conditions: Arthritis Arthritis, Rheumatoid Autoimmune Diseases
Keywords: humira, remicade rheumatoid arthritis enbrel failure humira failure arthritis enbrel
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 433
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the efficacy and safety of switching rheumatoid arthritis (RA) participants who have an inadequate response to their current treatment with either etanercept + methotrexate or adalimumab + methotrexate to treatment with golimumab 50 milligram (mg) subcutaneous (SC) injection (a needle inserted under the skin in the back of upper arm, upper thigh or stomach area) every 4 weeks + methotrexate. This study is also designed to evaluate the benefit and safety of switching participants from treatment with golimumab 50 mg subcutaneous injection every 4 weeks + methotrexate to golimumab 2 milligram per kilogram (mg/kg) intravenous every 8 weeks + methotrexate, for those who do not achieve a marked improvement of their RA at Week 16.

Detailed description:
The study consists of a main study and a voluntary, open-label (participants and researchers are aware about the treatment participants are receiving), 24-week study extension. The main study includes a Screening Run-in Period (Week -6 to Week 0), an Open-label Treatment Period (Week 0 to Week 16), an Open-label or Double-blind Treatment Period (Week 16 to Week 52). The main study also includes a Follow-up Period from Week 52 through Week 64 for those participants who will not participate in the 24-week study extension. Participants, participating in 24-week extension (at Week 52), will receive open-label golimumab SC injections every 4 weeks from Week 52 up to Week 72 and will be followed-up up to Week 88. All eligible participants will initiate the treatment with open-label golimumab SC injection every 4 weeks up to Week 12. At Week 16, depending upon the treatment response either participants will continue to receive open-label golimumab SC injection every 4 weeks up to Week 48 or participants will be randomly assigned to receive following 2 treatments: 1- golimumab 50mg SC injection every 4 weeks along with placebo intravenous infusion every 8 weeks through Week 48; 2- Placebo SC injection every 4 weeks along with golimumab 2mg/kg intravenous infusion every 8 weeks through Week 48. At Week 52, participants who choose to participate in the 24-week study extension will receive open-label golimumab 50 mg SC injections every 4 weeks through Week 72. Participants' safety will be monitored throughout the study.

Arms:
arm 1: All enrolled and dosed participants receive golimumab 50 milligram (mg) subcutaneous (SC) injection every 4 weeks + Methotrexate (MTX) from Week 0 to Week 12. arm 2: Participants, who do not achieve Disease Activity Score in 28 joints (DAS28) good response at Week 16, will be randomly assigned to receive golimumab 50 mg SC injection every 4 weeks + MTX from Week 16 to Week 48, along with placebo matched to golimumab intravenous infusion (IV) at Week 16, 20, 28, 36, and 44. arm 3: Participants, who do not achieve DAS28 good response at Week 16, will be randomly assigned to receive golimumab 2 milligram per kilogram (mg/kg) intravenous infusion (IV) + MTX, at Week 16, 20, 28, 36 and 44, along with placebo matched to golimumab SC injection every 4 weeks from Week 16 to Week 48. arm 4: Participants, who achieve DAS28 good response at Week 16, will receive golimumab 50 mg SC injection every 4 weeks + MTX from Week 16 to Week 48. arm 5: Participants who complete the main study (Week 0 to Week 52), do not meet lack of efficacy criteria, and participate in the OL study extension, will receive golimumab 50 mg SC injection every 4 weeks + MTX from Week 52 to Week 72.

Interventions: intervention 1: Golimumab 50 mg SC intervention 2: Golimumab 2 mg/kg IV intervention 3: Methotrexate (MTX) intervention 4: Placebo SC intervention 5: Placebo IV
Intervention descriptions: intervention 1: Golimumab 50 milligram (mg) subcutaneous (SC) injection every 4 weeks. intervention 2: Golimumab 2 milligram per kilogram (mg/kg) intravenous infusion every 8 weeks. intervention 3: Participants will continue taking their current Methotrexate (MTX) treatment regimen. intervention 4: Placebo matched to golimumab SC injection every 4 weeks. intervention 5: Placebo matched to golimumab intravenous infusion every 8 weeks.

Protocol document: