Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Phase 3 Randomized, Double Blind, Placebo Controlled Study Of The Efficacy And Safety Of 2 Doses Of CP-690,550 In Patients With Active Rheumatoid Arthritis On Background Methotrexate
Brief Summary: This study is designed to provide safety and efficacy data to support the development of CP-690,550 in patients with moderate to severe rheumatoid arthritis on background of methotrexate.


Options:
A: Arm Label: Sequence 1; Type: EXPERIMENTAL; Interventions: Drug: CP-690,550 | Arm Label: Sequence 2; Type: EXPERIMENTAL; Interventions: Drug: CP-690,550 | Arm Label: Sequence 3; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo, Drug: CP-690,550 | Arm Label: Sequence 4; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo, Drug: CP-690,550 | Intervention Type: DRUG; Name: CP-690,550; Assigned to Arm(s): Sequence 1 | Intervention Type: DRUG; Name: CP-690,550; Assigned to Arm(s): Sequence 1 | Intervention Type: DRUG; Name: CP-690,550; Assigned to Arm(s): Sequence 2 | Intervention Type: DRUG; Name: CP-690,550; Assigned to Arm(s): Sequence 2 | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Sequence 3 | Intervention Type: DRUG; Name: CP-690,550; Assigned to Arm(s): Sequence 3 | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Sequence 4 | Intervention Type: DRUG; Name: CP-690,550; Assigned to Arm(s): Sequence 4
B: Arm Label: Adalimumab; Type: EXPERIMENTAL; Interventions: Biological: Adalimumab, Drug: Methotrexate placebo | Arm Label: Adalimumab + methotrexate; Type: EXPERIMENTAL; Interventions: Biological: Adalimumab, Drug: Methotrexate | Arm Label: Methotrexate; Type: EXPERIMENTAL; Interventions: Drug: Methotrexate, Biological: Adalimumab placebo | Intervention Type: BIOLOGICAL; Name: Adalimumab; Assigned to Arm(s): Adalimumab, Adalimumab + methotrexate | Intervention Type: DRUG; Name: Methotrexate; Assigned to Arm(s): Adalimumab + methotrexate, Methotrexate | Intervention Type: BIOLOGICAL; Name: Adalimumab placebo; Assigned to Arm(s): Methotrexate | Intervention Type: DRUG; Name: Methotrexate placebo; Assigned to Arm(s): Adalimumab
C: Arm Label: Tocilizumab 162 mg sc; Type: EXPERIMENTAL; Interventions: Drug: Tocilizumab 162 mg | Arm Label: Placebo sc; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Intervention Type: DRUG; Name: Tocilizumab 162 mg; Assigned to Arm(s): Tocilizumab 162 mg sc | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo sc
D: Arm Label: ADA+MTX/PBO+MTX (Arm 1); Type: EXPERIMENTAL; Interventions: Biological: adalimumab, Drug: methotrexate, Biological: placebo | Arm Label: ADA+MTX/ADA+MTX (Arm2); Type: EXPERIMENTAL; Interventions: Biological: adalimumab, Drug: methotrexate | Arm Label: ADA+MTX/OL ADA+MTX (Arm 3); Type: EXPERIMENTAL; Interventions: Biological: adalimumab, Drug: methotrexate | Arm Label: PBO+MTX/PBO+MTX (Arm 4); Type: EXPERIMENTAL; Interventions: Drug: methotrexate, Biological: placebo | Arm Label: PBO+MTX/OL ADA+MTX (Arm 5); Type: EXPERIMENTAL; Interventions: Biological: adalimumab, Drug: methotrexate, Biological: placebo | Intervention Type: BIOLOGICAL; Name: adalimumab; Assigned to Arm(s): ADA+MTX/ADA+MTX (Arm2), ADA+MTX/OL ADA+MTX (Arm 3), ADA+MTX/PBO+MTX (Arm 1), PBO+MTX/OL ADA+MTX (Arm 5) | Intervention Type: DRUG; Name: methotrexate; Assigned to Arm(s): ADA+MTX/ADA+MTX (Arm2), ADA+MTX/OL ADA+MTX (Arm 3), ADA+MTX/PBO+MTX (Arm 1), PBO+MTX/OL ADA+MTX (Arm 5), PBO+MTX/PBO+MTX (Arm 4) | Intervention Type: BIOLOGICAL; Name: placebo; Assigned to Arm(s): ADA+MTX/PBO+MTX (Arm 1), PBO+MTX/OL ADA+MTX (Arm 5), PBO+MTX/PBO+MTX (Arm 4)

Answer: A