Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: An Extension Protocol for Multiple Sclerosis Patients Who Participated in Genzyme-Sponsored Studies of Alemtuzumab
Brief Summary: This open-label, rater-blinded extension study enrolled participants who had relapsing-remitting multiple sclerosis (RRMS) and who participated in one of three prior Genzyme-sponsored studies of alemtuzumab (CAMMS223 \[NCT00050778\], CAMMS323 \[NCT00530348\] also known as CARE-MS I, or CAMMS324 \[NCT00548405\] also known as CARE-MS II). The purposes of this study were:

1. To examine the long term safety and efficacy of alemtuzumab treatment in participants who received alemtuzumab as their study treatment in one of the prior studies.
2. To examine the safety and efficacy of initial alemtuzumab treatment in this study for participants who received Rebif® (interferon beta-1a) as their study treatment in one of the prior studies.
3. To determine the safety and efficacy of additional "as needed" alemtuzumab treatment courses. This applied both to participants who received alemtuzumab for the first time in one of the prior studies or for the first time in this extension study.


Options:
A: 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
B: Arm Label: Previously treated with alemtuzumab; Type: EXPERIMENTAL; Interventions: Biological: alemtuzumab | Arm Label: Previously treated with interferon beta-1a (Rebif®); Type: EXPERIMENTAL; Interventions: Biological: alemtuzumab | Intervention Type: BIOLOGICAL; Name: alemtuzumab; Assigned to Arm(s): Previously treated with alemtuzumab, Previously treated with interferon beta-1a (Rebif®)
C: Arm Label: BAF312 10mg (period 1); Type: EXPERIMENTAL; Interventions: Drug: BAF312 | Arm Label: BAF312 2 mg (period 1); Type: EXPERIMENTAL; Interventions: Drug: BAF312 | Arm Label: BAF312 0.5 mg (period 1); Type: EXPERIMENTAL; Interventions: Drug: BAF312 | Arm Label: BAF312 dose between 0.1 to 8 mg period 2; Type: EXPERIMENTAL; Interventions: Drug: BAF312 | Arm Label: BAF312 dose between 0.1 - 8 mg period 2; Type: EXPERIMENTAL; Interventions: Drug: BAF312 | Arm Label: Placebo (period 1, 2); Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Intervention Type: DRUG; Name: BAF312; Assigned to Arm(s): BAF312 0.5 mg (period 1), BAF312 10mg (period 1), BAF312 2 mg (period 1), BAF312 dose between 0.1 - 8 mg period 2, BAF312 dose between 0.1 to 8 mg period 2 | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo (period 1, 2)
D: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Drug: Glatiramer acetate, Drug: Albuterol placebo | Arm Label: 2; Type: EXPERIMENTAL; Interventions: Drug: Glatiramer acetate, Drug: Albuterol | Intervention Type: DRUG; Name: Glatiramer acetate; Assigned to Arm(s): 1, 2 | Intervention Type: DRUG; Name: Albuterol; Assigned to Arm(s): 2 | Intervention Type: DRUG; Name: Albuterol placebo; Assigned to Arm(s): 1

Answer: B