Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Randomized, Double-Blind, Double-Dummy, Parallel-Group Study To Evaluate the Efficacy and Safety of Ocrelizumab in Comparison to Interferon Beta-1a (Rebif) in Patients With Relapsing Multiple Sclerosis
Brief Summary: This randomized, double-blind, double-dummy, parallel-group study will evaluate the efficacy and safety of ocrelizumab in comparison with interferon beta-1a (Rebif) in participants with relapsing multiple sclerosis. Participants will be randomized to receive either ocrelizumab 600 mg or matching placebo intravenous (IV) as 300 mg infusions on Days 1 and 15 for the first dose and as a single infusion of 600 mg for all subsequent infusions every 24 weeks, with placebo injections matching interferon beta-1a SC three times per week; or interferon beta-1a 44 mcg SC injections three times per week (with placebo infusions matching ocrelizumab infusions every 24 weeks).


Options:
A: Arm Label: Placebo; Type: EXPERIMENTAL; Interventions: Drug: Ocrelizumab, Other: Placebo | Arm Label: Ocrelizumab 600 mg; Type: PLACEBO_COMPARATOR; Interventions: Drug: Ocrelizumab | Intervention Type: DRUG; Name: Ocrelizumab; Assigned to Arm(s): Ocrelizumab 600 mg, Placebo | Intervention Type: OTHER; Name: Placebo; Assigned to Arm(s): Placebo
B: Arm Label: Interferon beta-1a 44 mcg SC; Type: ACTIVE_COMPARATOR; Interventions: Drug: Interferon beta-1a, Drug: Ocrelizumab-matching placebo | Arm Label: Ocrelizumab; Type: EXPERIMENTAL; Interventions: Drug: Ocrelizumab, Drug: Interferon beta-1a-matching placebo | Intervention Type: DRUG; Name: Interferon beta-1a; Assigned to Arm(s): Interferon beta-1a 44 mcg SC | Intervention Type: DRUG; Name: Ocrelizumab-matching placebo; Assigned to Arm(s): Interferon beta-1a 44 mcg SC | Intervention Type: DRUG; Name: Ocrelizumab; Assigned to Arm(s): Ocrelizumab | Intervention Type: DRUG; Name: Interferon beta-1a-matching placebo; Assigned to Arm(s): Ocrelizumab
C: Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Arm Label: Ocrelizumab 600 mg; Type: EXPERIMENTAL; Interventions: Drug: Ocrelizumab | Arm Label: Ocrelizumab 1000 mg; Type: EXPERIMENTAL; Interventions: Drug: Ocrelizumab | Arm Label: Avonex; Type: ACTIVE_COMPARATOR; Interventions: Drug: Avonex | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo | Intervention Type: DRUG; Name: Ocrelizumab; Assigned to Arm(s): Ocrelizumab 1000 mg, Ocrelizumab 600 mg | Intervention Type: DRUG; Name: Avonex; Assigned to Arm(s): Avonex
D: Arm Label: Interferon beta-1a 44 mcg SC; Type: ACTIVE_COMPARATOR; Interventions: Drug: Interferon beta-1a, Drug: Ocrelizumab-matching placebo | Arm Label: Ocrelizumab; Type: EXPERIMENTAL; Interventions: Drug: Ocrelizumab, Drug: Interferon beta-1a-matching placebo | Intervention Type: DRUG; Name: Interferon beta-1a; Assigned to Arm(s): Interferon beta-1a 44 mcg SC | Intervention Type: DRUG; Name: Ocrelizumab-matching placebo; Assigned to Arm(s): Interferon beta-1a 44 mcg SC | Intervention Type: DRUG; Name: Ocrelizumab; Assigned to Arm(s): Ocrelizumab | Intervention Type: DRUG; Name: Interferon beta-1a-matching placebo; Assigned to Arm(s): Ocrelizumab

Answer: D