Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Randomized, Double-Blind Study Comparing the Safety & Efficacy of Once-Weekly Etanercept 50 mg, Etanercept 25 mg, & Placebo in Combination With Methotrexate in Subjects With Active Rheumatoid Arthritis
Brief Summary: To compare the efficacy of the combination of etanercept 50 mg once weekly plus methotrexate with that of methotrexate monotherapy in the treatment of rheumatoid arthritis over 88 weeks.


Options:
A: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Drug: tocilizumab [RoActemra/Actemra], Drug: Methotrexate | Arm Label: 2; Type: EXPERIMENTAL; Interventions: Drug: tocilizumab [RoActemra/Actemra], Drug: Methotrexate | Arm Label: 3; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo, Drug: Methotrexate | Intervention Type: DRUG; Name: tocilizumab [RoActemra/Actemra]; Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: tocilizumab [RoActemra/Actemra]; Assigned to Arm(s): 2 | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): 3 | Intervention Type: DRUG; Name: Methotrexate; Assigned to Arm(s): 1, 2, 3
B: Arm Label: Abatacept (ABA) + Methotrexate (MTX) (double-blind [DB]); Type: ACTIVE_COMPARATOR; Interventions: Drug: Abatacept (ABA) + Methotrexate (MTX), double-blind (DB) | Arm Label: Infliximab + MTX (DB); Type: ACTIVE_COMPARATOR; Interventions: Drug: Infliximab (INF) + MTX, DB | Arm Label: Placebo + MTX (DB); Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo (PLA) + MTX, DB | Arm Label: Placebo + MTX switched to abatacept + MTX (DB); Type: EXPERIMENTAL; Interventions: Drug: PLA + MTX switched to ABA+ MTX, DB | Arm Label: Abatacept (open-label); Type: EXPERIMENTAL; Interventions: Drug: ABA, open-label (OL) | Intervention Type: DRUG; Name: Abatacept (ABA) + Methotrexate (MTX), double-blind (DB); Assigned to Arm(s): Abatacept (ABA) + Methotrexate (MTX) (double-blind [DB]) | Intervention Type: DRUG; Name: Infliximab (INF) + MTX, DB; Assigned to Arm(s): Infliximab + MTX (DB) | Intervention Type: DRUG; Name: Placebo (PLA) + MTX, DB; Assigned to Arm(s): Placebo + MTX (DB) | Intervention Type: DRUG; Name: PLA + MTX switched to ABA+ MTX, DB; Assigned to Arm(s): Placebo + MTX switched to abatacept + MTX (DB) | Intervention Type: DRUG; Name: ABA, open-label (OL); Assigned to Arm(s): Abatacept (open-label)
C: Arm Label: 1; Type: ACTIVE_COMPARATOR; Interventions: Drug: Etanercept, Drug: Methotrexate | Arm Label: 2; Type: ACTIVE_COMPARATOR; Interventions: Drug: Etanercept, Drug: Methotrexate | Arm Label: 3; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo, Drug: Methotrexate | Intervention Type: DRUG; Name: Etanercept; Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: Methotrexate; Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: Etanercept; Assigned to Arm(s): 2 | Intervention Type: DRUG; Name: Methotrexate; Assigned to Arm(s): 2 | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): 3 | Intervention Type: DRUG; Name: Methotrexate; Assigned to Arm(s): 3
D: Arm Label: CDP870 100mg; Type: EXPERIMENTAL; Interventions: Drug: CDP870 100mg | Arm Label: CDP870 200mg; Type: EXPERIMENTAL; Interventions: Drug: CDP870 200mg | Arm Label: CDP870 400mg; Type: EXPERIMENTAL; Interventions: Drug: CDP870 400mg | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo of CDP870 | Intervention Type: DRUG; Name: CDP870 400mg; Assigned to Arm(s): CDP870 400mg | Intervention Type: DRUG; Name: CDP870 200mg; Assigned to Arm(s): CDP870 200mg | Intervention Type: DRUG; Name: CDP870 100mg; Assigned to Arm(s): CDP870 100mg | Intervention Type: DRUG; Name: Placebo of CDP870; Assigned to Arm(s): Placebo

Answer: C