Please select the eligibility criteria that correspond to the clinical trial below.
Title: Double-blind, Randomized, Placebo-controlled, Parallel-group, Multicenter Study Evaluating the Safety, Tolerability and Effect on MRI Lesion Parameters of FTY720 vs Placebo in Patients With Relapsing Multiple Sclerosis Including 18 Month Extension Phase
Brief Summary: This study evaluated the safety, tolerability and effect on MRI lesion parameters of FTY720 in patients with relapsing multiple sclerosis.


Options:
A: Core Study

Inclusion Criteria:

* Diagnosis of relapsing multiple Sclerosis (MS)
* Patients with at least two documented relapses in the previous 2 years or one documented relapse in the last year
* Patients with an Expanded Disability Status Scale (EDSS) score of 0-6

Extension Study

* A positive Gd-enhanced MRI scan at screening (in case the first MRI scan obtained at screening was negative, a second scan could have been obtained 1 month later)
* Neurologically stable with no evidence of relapse within 30 days prior to randomization,or during the Screening and Baseline periods.
* Female patients either post-menopausal, surgically incapable of bearing children, or practicing an acceptable method of birth control. Females of childbearing potential with a negative pregnancy test at baseline prior to entry into the treatment period.

Exclusion Criteria:

Core Study

* Patients with other chronic disease of the immune system, malignancies, pulmonary or heart disease, etc
* Pregnant or nursing women

Extension Study

* Patients who had permanently discontinued study drug prior to the Month 6 visit of the core study
* Patients with diabetes mellitus (to reduce the risk of ME), and therefore ongoing patients with diabetes mellitus or who developed diabetes mellitus were discontinued from the study)

Other protocol-defined inclusion/exclusion criteria may apply
B: Inclusion Criteria:

* Relapsing form of MS meeting McDonald's criteria for MS diagnosis and Expanded Disability Status Scale \[EDSS\] score ≤5.5 at screening visit.

Exclusion Criteria:

* Significantly impaired bone marrow function or, significant anemia, leukopenia or thrombocytopenia;
* Persistent significant or severe infection.
* Liver function impairment or known history of hepatitis.
* Use of adrenocorticotrophic hormone \[ACTH\] or systemic corticosteroids for 2 weeks prior to randomization.
* Human immunodeficiency virus \[HIV\] positive.
* Prior use of Rebif®, or prior or concomitant use of other interferons in the 3 months prior to randomization.
* Prior or concomitant use of cladribine, mitoxantrone, or other immunosuppressant agents such as azathioprine, cyclophosphamide, cyclosporin, methotrexate, mycophenolate, or natalizumab.
* Pregnant or breast-feeding woman.

Extension criteria:

The participants who met all the following criteria at the end of the core study period were eligible for enrolment into the open-label extension phase:

* Participants who had not discontinued treatment in the core period and who had a minimum treatment of 48 weeks and completed the EOT visit (Visit 18).
* Participants who had not met criteria for treatment withdrawal.
* An informed consent must be obtained in writing from the participant for this open-label extension phase prior to entering and prior to completion of any extension phase procedure.
* Participants who demonstrated a willingness and ability to roll over to the extension phase with the opportunity to continue treatment on 14 mg/day of teriflunomide under open-label.

The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.
C: Inclusion Criteria:

* Female and male patients
* Aged 18-55 years
* Diagnosis of RRMS (Relapsing-Remitting Multiple Sclerosis), EDSS score of 0 to 5.0
* Treatment-naive to IFNB or Copaxone

Exclusion Criteria:

* Neurological progression at disease onset or between relapses
* Serious or acute heart diseases
* History of severe depression or suicide attempt
* Serious or acute liver, renal or bone marrow dysfunction
* Monoclonal gammopathy
* Known allergy to Gadolinium-DTPA, to IFNs (Interferons), to glatiramer acetate, to human albumin or to mannitol
* Pregnancy or lactation
D: Key Inclusion Criteria:

* Unless otherwise specified, to be eligible to participate in this study, candidates must meet the following eligibility criteria at the time of the randomization:
* Must have a confirmed diagnosis of RRMS according to McDonald criteria #1-4.
* Must have a baseline EDSS between 0.0 and 5.0, inclusive.
* Must have relapsing-remitting disease course.

Key Exclusion Criteria:

* Unless otherwise specified, candidates will be excluded from study entry if any of the following exclusion criteria exist at randomization:
* Other chronic disease of the immune system, malignancies, acute urologic, pulmonary, gastrointestinal disease.
* Pregnant or nursing women.

Note: Other protocol-defined inclusion/exclusion criteria may apply.

Answer: A