Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized, Double-Blind Study Comparing the Safety & Efficacy of Once-Weekly Etanercept 50 mg, Etanercept 25 mg, & Placebo in Combination With Methotrexate in Subjects With Active Rheumatoid Arthritis
Brief Summary: To compare the efficacy of the combination of etanercept 50 mg once weekly plus methotrexate with that of methotrexate monotherapy in the treatment of rheumatoid arthritis over 88 weeks.


Options:
A: Inclusion Criteria:

* adult patients at least 18 years of age with moderate to severe active RA for at least 6 months;
* inadequate response to a stable dose of MTX;
* patients of reproductive potential must be using reliable methods of contraception.

Exclusion Criteria:

* major surgery (including joint surgery) within 8 weeks before entering study, or planned surgery within 6 months after entering study;
* prior treatment failure with an anti-tumor necrosis factor agent;
* women who are pregnant or breast-feeding.
B: Inclusion Criteria:

* Diagnosis of Rheumatoid Arthritis
* At least 3 months prior treatment with Methotrexate (MTX)
* At least 10 swollen joints and 12 tender joints and C-Reactive Protein of at least 1 mg/dl
* Washout required for other disease modifying anti-rheumatic drugs (DMARDS)

Exclusion Criteria:

* participants who have failed more than 3 DMARDs
* participants previously treated with an approved biologic drug
* History of cancer in the last 5 years
* Severe or recurrent bacterial infection
* Any previous or current medical conditions that are contraindications to the use of TNF blocking agents
* Women of Child Bearing Potential
C: Inclusion Criteria:

* Diagnosis of rheumatoid arthritis.
* Currently receiving an optimal dose of oral Methotrexate (MTX)(at least 15 mg/week but no more than 25 mg/week) for the treatment of rheumatoid arthritis.
* Active rheumatoid arthritis at the time of screening.

Exclusion Criteria:

* Previous or current treatment with etanercept, other tumor necrosis factor-alpha (TNF) inhibitors, or other biologic agents.
* Concurrent treatment with any disease-modifying anti-rheumatoid drugs (DMARD), other than MTX within 28 days before baseline.
* Concurrent treatment with more than 1 non-steroid anti-inflammatory drug (NSAID) at baseline.
D: Inclusion Criteria:

* Subjects must have a diagnosis of adult-onset RA of at least 6 months but not longer than 15 years in duration as defined by the 1987 American College of Rheumatology classification criteria.
* Subjects must have active RA disease as defined by:

  * At least 9 tender joints and 9 swollen joints
  * ESR of 30 mm/hour or CRP of 1.5 mg/dL
* Subjects must have received treatment with MTX for at least 6 months prior to the start of study drug administration. The dose of MTX must have remain fixed for at least 2 months prior to the study and the dose of MTX should be within 6 to 8 mg/week.

Exclusion Criteria:

* Patients who have a diagnosis of any other inflammatory arthritis
* Patients who have a secondary, non-inflammatory type of arthritis (eg, osteoarthritis, fibromyalgia)
* Patients who currently have, or who have a history of, a demyelinating or convulsive disease of the central nervous system (eg, multiple sclerosis, epilepsy)
* Patients who have NYHA (New York Heart Association) Class III or IV congestive heart failure
* Patients who currently have, or who have a history of, tuberculosis
* Patients who have a high risk of infection (with a current infectious disease, a chronic infectious disease, a history of serious infectious disease)
* Patients who currently have, or who have a history of, malignancy
* Female patients who are breastfeeding or pregnant, who are of childbearing potential
* Patients who previously received treatment with 2 or more anti-TNFα drugs or who previously failed to respond to treatment with 1 or more aint-TNFα drugs.

Answer: C