Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Multicenter, Double-blind, Randomized, Placebo-controlled, Parallel-group Study to Assess the Efficacy, Pharmacokinetics and Safety of CDP870 as add-on Medication to MTX in Japanese Active RA Patients Who Have an Incomplete Response to MTX.
Brief Summary: The objective of this trial is to investigate the efficacy (American College of Rheumatology 20% : ACR20) superiority of two dose regiments of CDP870 versus placebo in combination with MTX in active RA patients who have an incomplete response to MTX. The pharmacokinetics and immunogenicity profile of CDP870 will also be investigated to assess the extrapolability of foreign data to the Japanese population.


Options:
A: Inclusion Criteria:

* Subjects with RA as defined by the ACR/EULAR criteria (2010) who meet all of the following criteria:

  1. Subjects who developed RA within one year after onset of RA.
  2. Subjects who have never received MTX before (MTX naive)
  3. Subjects whose disease activity is moderate or higher (DAS28(ESR) ≥ 3.2）
  4. Subjects must satisfy at least two of the three criteria (Anti-CCP antibody positive, Rheumatoid factor positive, Presence of X-ray erosion） for poor prognostic factors. The anti-CCP antibody positive is essential for every patient.

Exclusion Criteria:

* Patients who have a diagnosis of any other type of inflammatory arthritis.
* Patients who have a secondary, non-inflammatory type of arthritis.
* Patients who have used with MTX, reflunomide, or any other biologics prior to the start of study drug administration.
* 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 have a history of, malignant tumor
* Female patients who are breastfeeding or pregnant, who are of childbearing potential
B: 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.
C: Inclusion Criteria:

Patients must have either failed to achieve American College of Rheumatology 20 % Response Criteria (ACR20) at Weeks 12 and 14 in C87027 \[NCT00152386\], or must have completed the entire Week 52 assessment of C87027 \[NCT00152386\] trial.

Exclusion Criteria:

* A diagnosis of any other inflammatory Arthritis (e.g. Psoriatic Arthritis or Ankylosing Spondylitis)
* A secondary, non-inflammatory type of Arthritis (e.g. Osteoarthritis or Fibromyalgia) that in the Investigator's opinion is symptomatic enough to interfere with evaluation of the effect of CDP870 on the patient's primary diagnosis of Rheumatoid Arthritis
* Any concomitant biological therapy
* Any experimental therapy, within or outside a clinical trial
D: Inclusion Criteria:

* Patients with established diagnosis of low to moderate adult rheumatoid arthritis, currently on Disease Modifying AntiRheumatic Drugs (DMARDs) therapy for at least six months and not longer than 10 years

Exclusion Criteria:

* All the concomitant diseases or pathological conditions that could interfere and impact the assessment of the study treatment, or with the safety of the patient
* Previous clinical trials and previous biological therapy that could interfere with the results in the present clinical trial
* Patients must not have received any previous biological therapy for rheumatoid arthritis (RA)

Answer: B