Please select the eligibility criteria that correspond to the clinical trial below.
Title: Phase 3, Randomized, Double Blind, Placebo Controlled Study Of The Safety And Efficacy Of 2 Doses Of CP 690,550 In Patients With Active Rheumatoid Arthritis On Background DMARDS
Brief Summary: This Phase 3 study is intended to provide evidence that CP-690,550 dosed 5 mg BID and 10 mg BID is safe and effective when used in combination with a variety of traditional disease modifying antirheumatic drugs in adult patients with rheumatoid arthritis. It is intended to confirm the benefits of CP-690,550 in improving signs and symptoms and physical function that were observed in the Phase 2 rheumatoid arthritis studies.


Options:
A: Inclusion Criteria:

* The patient has a diagnosis of Rheumatoid Arthritis based on the American College of Rheumatology (ACR) 1987 Revised Criteria.
* The patient has active disease as defined by both \>=4 tender or painful joints on motion and \>= 4 joints swollen; and either an erythrocyte sedimentation rate (ESR) \> 28 mm or a C-reactive protein (CRP) concentration \> 7 mg/dL.
* Patient had an inadequate response to at least one disease modifying antirheumatic drug (traditional or biologic) due to lack of efficacy or toxicity.
* Patient must remain on at least one background traditional disease modifying antirheumatic drug.
* No evidence of inadequately treated latent or active infection with Mycobacterium tuberculosis.

Exclusion Criteria:

* Blood dyscrasias including confirmed: Hemoglobin \<9 g/dL or Hematocrit \<30%; White blood cell count \<3.0 x 109/L; Absolute neutrophil count \<1.2 x 109/L; Platelet count \<100 x 109/L.
* History of any other rheumatic autoimmune disease other than Sjogren's syndrome.
* No malignancy or history of malignancy.
* History of infection requiring hospitalization, parenteral antimicrobial therapy, or as otherwise judged clinically significant by the investigator, within the 6 months prior to the first dose of study drug.
B: Inclusion Criteria:

* The subject has a history of inadequate response to at least 1, but no more than 4, of the following DMARDs: sulfasalazine, injectable gold, methotrexate, leflunomide, cyclosporine, or a thiopurine derivative (azathioprine or 6-mercaptopurine)

Exclusion Criteria:

* Current Therapy With Any DMARD Or Biologic
C: Inclusion Criteria:

* Adult patients, ≥ 18 years of age.
* Rheumatoid arthritis of \> 6 months duration.
* Intolerant of methotrexate or continued treatment with methotrexate is considered inappropriate.
* All disease-modifying anti-rheumatic drugs (DMARD) are to be withdrawn prior to receiving study drug.
* Weight ≤ 150 kg.

Exclusion Criteria:

* Major surgery (including joint surgery) within 12 weeks prior to baseline or planned major surgery within 6 months after baseline.
* History of or current inflammatory joint disease other than rheumatoid arthritis (RA).
* Treatment with a biologic agent at any time prior to baseline.
* Intra-articular or parenteral corticosteroids ≤ 4 weeks prior to baseline.
* Active current infection or history of recurrent bacterial, viral, fungal or mycobacterial infection.
D: Inclusion Criteria:

* Diagnosis of Rheumatoid Arthritis (RA)
* Currently receiving a suboptimal response to a stable dose of methotrexate for treatment of Rheumatoid Arthritis (RA)
* Active Rheumatoid Arthritis (RA) at time of screening and baseline

Exclusion Criteria:

* Previous or current treatment with etanercept, other tumor necrosis factor-alpha inhibitors, or other biologic agents
* Concurrent treatment with a Disease Modifying Antirheumatic Drug (DMARD), other than methotrexate, at screening
* Receipt of any Disease Modifying Antirheumatic Drug (DMARD), other than methotrexate, within 3 months before screening

Answer: A