Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase II Randomized, Double-Blinded, Placebo-Controlled, Multi-Center Study of Subcutaneous Daclizumab in Patients With Active, Relapsing Forms of Multiple Sclerosis
Brief Summary: This research study is being conducted in the U.S. and Europe to evaluate the safety and efficacy of daclizumab for the treatment of multiple sclerosis (MS).


Options:
A: 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.
B: Inclusion Criteria:

* Male and female patients between ages 18-55 with a diagnosis of multiple sclerosis
* Patients with a relapsing-remitting disease course
* Patients with expanded disability status scale (EDSS) score of 0-5.5

Exclusion Criteria:

* Patients with other chronic disease of the immune system, malignancies, acute pulmonary disease, cardiac failure, etc.
* Pregnant or nursing women

For inclusion in the extension phase patients should complete the 24 month core study with or without 24 months on study drug. If a patient discontinued study drug during the core study due to an adverse event, serious adverse event, laboratory abnormality etc. they would be excluded from the Extension Phase.

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

* Male or female age 18 to 55 years, inclusive.
* Diagnosis of MS by McDonald criteria.
* EDSS \<7.0.
* On stable IFN-beta regimen for at least 6 months.
* The occurrence of either of the following within 9 months prior to screening: ≥1 MS relapse OR A qualifying MRI, defined as an MRI that showed at least one confirmed Gd-CEL of the brain or spinal cord, was performed independently of the study while the patient was on a stable IFN-beta regimen, and is deemed acceptable by the central reader.
* For females, women of non-childbearing potential or women of childbearing potential who provide a negative serum pregnancy test at screen and within 24 hours of first dose of study drug, and who agree to use effective contraception during the Treatment and Follow-up periods of the study.
* Willing and able to comply with the protocol, provision of informed consent in accordance with institutional and regulatory guidelines, and, for US sites only, authorization to use protected health information.

Exclusion Criteria:

* Pregnant or breast-feeding woman.
* Non-ambulatory patient.
* Clinically significant abnormality on screening ECG.
* Malignancy within the past 5 years, except for adequately treated non-melanoma skin carcinoma or in situ carcinoma of the cervix.
* History of HIV infection, positive serology for HBV (hepatitis B virus) or HCV (hepatitis C virus).
* Varicella (VZV) or herpes zoster virus infection, or any severe viral infection, within 6 weeks before screening or exposure to VZV within 21 days of screening.
* Abnormal hematology, as defined by the following laboratory values: \*Hemoglobin ≤8.5 g/dL, \*Lymphocytes ≤1.0 x 10\^9/L, \*Platelets ≤100 x 10\^9/L, \*Neutrophils ≤1.5 x 10\^9/L.
* Significant organ dysfunction, including but not limited to cardiac, renal, liver, non-MS related CNS, pulmonary, vascular, gastrointestinal, endocrine, or metabolic dysfunction, or other disease or condition, which in the opinion of the PI (principal investigator) would make the patient an unsuitable candidate for the study. Guidelines for levels of unacceptable dysfunction include: \*creatinine ≥1.6 mg/dL; \*AST and ALT ≥2.5 times upper limit of normal (ULN); \*alkaline phosphatase ≥2.5 times ULN; \*history of myocardial infarction, congestive heart failure, or arrhythmias within 6 months prior to randomization.
* Use of any of the following: \*Any of the following types of live virus vaccine from 4 weeks before randomization: measles/mumps/rubella vaccine, varicella zoster virus vaccine, oral polio vaccine, and nasal influenza vaccine. Use of these vaccines, however, by household contacts does not affect the eligibility of patients to enroll or continue in the study; \*Systemic corticosteroids, adrenocorticotropic hormone, or plasma exchange within 4 weeks before the baseline MRI scan (no more than 72 hours before Day 0); \*Azathioprine, mycophenolate mofetil, methotrexate, glatiramer acetate, or intravenous immune globulin within 6 months before randomization; \*An immunomodulatory agent within 6 months before randomization, except for interferon-beta products required per protocol; \*An investigational agent within 6 months before randomization unless this agent is non-immunomodulatory and the medical monitor or steering committee rules that its use is acceptable on the theoretical basis of a lapse of at least 5 serum half-lives since administration of the last possible dose; \*A monoclonal antibody (eg, Rituxan®/ Rituximab) within 6 months before randomization; \*Daclizumab at any time prior to randomization; \*Cladribine, mitoxantrone, cyclophosphamide, CamPath® (alemtuzumab), natalizumab (TYSABRI®/Antegren) or other drugs targeting alpha 4 integrin, total lymphoid irradiation, or bone marrow transplant at any time
* Patients for whom MRI is contraindicated, ie, have pacemakers or other contraindicated implanted metal devices, are allergic to gadolinium, or have claustrophobia that cannot be medically managed.
* Primary progressive MS.
* Clinically unstable for 30 days before randomization (Patients who experienced a relapse, with or without steroid treatment, during the screening period may be re-screened after 30 days.)
* Elective surgery performed from 2 weeks prior to randomization or scheduled through Week 44
* Infection (viral, fungal, bacterial) requiring hospitalization or IV antibiotics within 8 weeks before randomization.
D: Inclusion Criteria:

* Signed informed consent form (ICF)
* Male or non-pregnant, non-lactating female participants, 18 to 50 years of age (inclusive) as of signing the ICF
* Diagnosis of MS per McDonald's update of the Poser criteria, including cranial MRI consistent with those criteria (McDonald, 2001, Ann Neurol)
* Onset of first MS symptoms within 3 years prior to Screening as of signing the ICF
* Expanded Disability Status Scale (EDSS) score 0.0 to 3.0 (inclusive) at the screening and Baseline visits
* At least 2 completed clinical episodes of MS in the 2 years prior to study entry (that is, the initial event if within 2 years of study entry plus at least 1 relapse, or at least 2 relapses if the initial event was between 2 and 3 years prior to study entry)
* In addition to the clinical criteria, at least 1 enhancing lesion on any 1 of up to 4 screening gadolinium-enhanced MRI brain scans during a maximum 3-month run-in period (inclusive of the Month 0 Baseline scan)

Exclusion Criteria:

* Previous immunotherapy for MS other than steroids, including treatment with interferons, intravenous immunoglobulin (IVIG), glatiramer acetate, and mitoxantrone
* Personal history of thyroid autoimmune disease
* Personal history of clinically significant autoimmune disease (for example, inflammatory bowel disease, diabetes, lupus, severe asthma)
* History of thyroid carcinoma (previous thyroid adenoma was acceptable and was not considered an exclusion criterion)
* History of malignancy (except for basal cell skin carcinoma if disease-free for at least 5 years)
* Any disability acquired from trauma or another illness that, in the opinion of the Investigator, interfered with evaluation of disability due to MS
* Previous treatment with alemtuzumab
* History of anaphylaxis following exposure to humanized monoclonal antibodies
* Inability to undergo MRI with gadolinium administration
* Female participants of childbearing potential with a positive serum pregnancy test at screening or Baseline
* Male and female participants who did not agree to use effective contraceptive method(s) during the study
* Impaired renal function (that is, serum creatinine greater than or equal to 2 times the upper limit of normal \[ULN\])
* Untreated, major depressive disorder
* Epileptic seizures that were not adequately controlled by treatment
* Suicidal ideation
* Major systemic disease or other illness that, in the opinion of the Investigator, have compromised participant safety or interfered with the interpretation of study results
* Abnormal CD4 count or significantly abnormal thyroid function; presence of anti-thyroid stimulating hormone (TSH) receptor antibodies; known seropositivity for human immunodeficiency (HIV)
* Intolerance of pulsed corticosteroids, especially a history of steroid psychosis
* Presence of a monoclonal paraprotein
* Participants who had any form of MS other than relapsing-remitting
* Participants currently participating in a clinical study of an experimental or unapproved/unlicensed therapy

Answer: C