Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Phase IIIB, Multi-Center, Randomized, Double-Blind, Placebo-Controlled Comparative Study of Abatacept or Infliximab in Combination With Methotrexate in Controlling Disease Activity in Subjects With Rheumatoid Arthritis Having an Inadequate Clinical Response to Methotrexate
Brief Summary: The purpose of this clinical research study is to learn if Abatacept or Infliximab in combination with Methotrexate demonstrate a greater reduction in disease activity over placebo.


Options:
A: Arm Label: Etanercept + Methotrexate; Type: ACTIVE_COMPARATOR; Interventions: Biological: Etanercept, Drug: Methotrexate | Arm Label: Etanercept Only; Type: EXPERIMENTAL; Interventions: Biological: Etanercept, Drug: Methotrexate | Intervention Type: BIOLOGICAL; Name: Etanercept; Assigned to Arm(s): Etanercept + Methotrexate, Etanercept Only | Intervention Type: DRUG; Name: Methotrexate; Assigned to Arm(s): Etanercept + Methotrexate, Etanercept Only
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: Open-Label Active Treatment Enrolled from Phase 2; Type: EXPERIMENTAL; Interventions: Drug: CP-690,550 | Arm Label: Open-Label Active Treatment Enrolled from Phase 3; Type: EXPERIMENTAL; Interventions: Drug: CP-690,550 | Intervention Type: DRUG; Name: CP-690,550; Assigned to Arm(s): Open-Label Active Treatment Enrolled from Phase 2 | Intervention Type: DRUG; Name: CP-690,550; Assigned to Arm(s): Open-Label Active Treatment Enrolled from Phase 3
D: Arm Label: Tocilizumab 4 mg/kg + Methotrexate; Type: EXPERIMENTAL; Interventions: Drug: tocilizumab [RoActemra/Actemra], Drug: Methotrexate | Arm Label: Tocilizumab 8 mg/kg + Methotrexate; Type: EXPERIMENTAL; Interventions: Drug: tocilizumab [RoActemra/Actemra], Drug: Methotrexate | Arm Label: Placebo + Methotrexate; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo, Drug: Methotrexate | Intervention Type: DRUG; Name: tocilizumab [RoActemra/Actemra]; Assigned to Arm(s): Tocilizumab 4 mg/kg + Methotrexate, Tocilizumab 8 mg/kg + Methotrexate | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo + Methotrexate | Intervention Type: DRUG; Name: Methotrexate; Assigned to Arm(s): Placebo + Methotrexate, Tocilizumab 4 mg/kg + Methotrexate, Tocilizumab 8 mg/kg + Methotrexate

Answer: B