Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Randomized, Double-blind Study to Evaluate the Effect of Various Re-treatment Regimens of MabThera in Combination With Methotrexate on Treatment Response in Rheumatoid Arthritis Patients With an Inadequate Response to Methotrexate.
Brief Summary: This study will evaluate the efficacy and safety of various treatment and retreatment regimens of MabThera. All patients will receive concomitant methotrexate, 10-25mg once weekly either orally or parenterally. The anticipated time on study treatment is 2+ years, and the target sample size is 100-500 individuals.


Options:
A: Arm Label: Rituximab (0.5 g x 2) + Methotrexate; Type: EXPERIMENTAL; Interventions: Drug: folate, Drug: methotrexate, Drug: methylprednisolone, Drug: rituximab | Arm Label: Rituximab (1.0 g x 2) + Methotrexate; Type: EXPERIMENTAL; Interventions: Drug: folate, Drug: methotrexate, Drug: methylprednisolone, Drug: rituximab | Arm Label: Placebo + Methotrexate; Type: PLACEBO_COMPARATOR; Interventions: Drug: folate, Drug: methotrexate, Drug: methylprednisolone, Drug: placebo | Intervention Type: DRUG; Name: folate; Assigned to Arm(s): Placebo + Methotrexate, Rituximab (0.5 g x 2) + Methotrexate, Rituximab (1.0 g x 2) + Methotrexate | Intervention Type: DRUG; Name: methotrexate; Assigned to Arm(s): Placebo + Methotrexate, Rituximab (0.5 g x 2) + Methotrexate, Rituximab (1.0 g x 2) + Methotrexate | Intervention Type: DRUG; Name: methylprednisolone; Assigned to Arm(s): Placebo + Methotrexate, Rituximab (0.5 g x 2) + Methotrexate, Rituximab (1.0 g x 2) + Methotrexate | Intervention Type: DRUG; Name: placebo; Assigned to Arm(s): Placebo + Methotrexate | Intervention Type: DRUG; Name: rituximab; Assigned to Arm(s): Rituximab (0.5 g x 2) + Methotrexate, Rituximab (1.0 g x 2) + Methotrexate
B: Arm Label: Placebo Plus Methotrexate; Type: PLACEBO_COMPARATOR; Interventions: Drug: Methotrexate, Other: Placebo | Arm Label: Rituximab plus Methotrexate; Type: EXPERIMENTAL; Interventions: Drug: MabThera/Rituxan, Drug: Methotrexate | Intervention Type: DRUG; Name: MabThera/Rituxan; Assigned to Arm(s): Rituximab plus Methotrexate | Intervention Type: DRUG; Name: Methotrexate; Assigned to Arm(s): Placebo Plus Methotrexate, Rituximab plus Methotrexate | Intervention Type: OTHER; Name: Placebo; Assigned to Arm(s): Placebo Plus Methotrexate
C: Arm Label: MabThera/Rituxan; Type: EXPERIMENTAL; Interventions: Drug: methotrexate, Drug: rituximab [MabThera/Rituxan] | Intervention Type: DRUG; Name: methotrexate; Assigned to Arm(s): MabThera/Rituxan | Intervention Type: DRUG; Name: rituximab [MabThera/Rituxan]; Assigned to Arm(s): MabThera/Rituxan
D: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Drug: rituximab [MabThera/Rituxan] | Arm Label: 2; Type: EXPERIMENTAL; Interventions: Drug: rituximab [MabThera/Rituxan] | Arm Label: 3; Type: EXPERIMENTAL; Interventions: Drug: rituximab [MabThera/Rituxan] | Intervention Type: DRUG; Name: rituximab [MabThera/Rituxan]; Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: rituximab [MabThera/Rituxan]; Assigned to Arm(s): 2 | Intervention Type: DRUG; Name: rituximab [MabThera/Rituxan]; Assigned to Arm(s): 3

Answer: D