Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase III Multicentre, Double Blind, Placebo-controlled, Parallel Group 52-week Study to Assess the Efficacy and Safety of 2 Dose Regimens of Lyophilised CDP870 as Additional Medication to Methotrexate in the Treatment of Signs and Symptoms and Preventing Structural Damage in Patients With Active Rheumatoid Arthritis Who Have an Incomplete Response to Methotrexate
Brief Summary: Patients will be assigned to one of three treatment groups. Study medication is administered over a 52 week study duration.


Options:
A: Inclusion Criteria:

* Inadequate response to Methotrexate
* Must have been taking Methotrexate for at least 3 months at a minimal weekly dose of at least 15 mg and stable dose for 4 weeks prior to randomization
* American College of Rheumatology (ACR) global function status class 1-3
* Minimum of 6 swollen and 6 tender joints with evidence of synovitis in at least 1 hand or wrist
* High sensitivity C-reactive protein (hsCRP) ≥ 0.8 mg/dL

Exclusion Criteria:

* Previously received or currently receiving concomitant biologic therapy
B: Inclusion Criteria:

* Male or female subjects greater than or equal to (\>=) 18 years of age at the time of informed consent who have RA satisfying American College of Rheumatology (ACR) criteria with a disease history of at least 6 months
* Subjects must have active disease, defined by \>=8 swollen joints (out of 66), \>=8 tender joints (out of 68) and CRP \>=10 milligram per liter (mg/L) and/or erythrocyte sedimentation rate (ESR) \>=28 millimeter per hour (mm/hr), despite treatment with MTX at a dose of \>=15 milligram per week (mg/week) for greater than (\>) 3 months
* Other protocol-defined inclusion criteria could apply

Exclusion Criteria:

* Inflammatory joint disease other than RA
* Previous or concurrent treatment with any approved or investigational biological compound for RA, including but not restricted to any anti-TNFalpha agents, rituximab, abatacept, tocilizumab, interleukin-1 receptor antagonist (IL-1Ra) and belimumab
* Treatment with disease-modifying anti-rheumatic drug (DMARDs) other than MTX
* Participation in any interventional clinical trial within 1 month before study Day 1
* MTX dose \>25 mg/week, prednisone dose \>10 mg/day (or equivalent), or change in steroid or non-steroidal anti-inflammatory drug (NSAID) dosing regimen within 28 days before study Day 1
* Immunization with live vaccine or immunoglobulin (Ig) treatment within 28 days before study Day 1 or need for such treatment during the study (including follow-up)
* Any history or presence of active or latent tuberculosis, major infection requiring hospitalization or intravenous anti-infectives within 28 days before study Day 1
* Other major concurrent illness or organ dysfunction as specified in the protocol
* Serum IgG below 6 gram per liter (g/L)
* Known hypersensitivity to atacicept or to any of the components of the formulated atacicept
* Other protocol-defined exclusion criteria could apply
C: Inclusion Criteria:

* Diagnosis of RA according to the American College of Rheumatology criteria for at least 3 months prior to screening
* Have active Rheumatoid Arthritis at the time of screening and at baseline, as defined by 6 or more swollen joints and 6 or more tender joints and additional laboratory criteria

Exclusion Criteria:

* Have other inflammatory diseases, including but not limited to ankylosing spondylitis, systemic lupus erythematosus, Lyme disease
* Received disease-modifying antirheumatic drugs (\[DMARDs\] eg, D penicillamine, hydroxychloroquine, chloroquine, oral or parenteral gold, interleukin \[IL\]-1 receptor antagonist \[anakinra\], azathioprine, sulphasalazine, agents other than MTX) within 4 weeks prior to the first study dose
D: Inclusion Criteria:

* Male and female, aged at least 18 years old at the Screening visit.
* A clear chest X-ray within 3 months prior to Baseline visit.
* A diagnosis of adult-onset RA (of at least six months duration but not longer than 15 years prior to Screening) as defined by the 1987 American College of Rheumatology classification criteria.
* Active RA disease at Screening and Baseline as defined by:

  * ≥9 tender joints.
  * ≥9 swollen joints. and fulfilling 1 of the following 2 criteria:
  * ≥30 mm/hour ESR (Westergren), or
  * CRP \>15 mg/L.
* Must have received a stable dose of MTX with or without folic acid for at least 3 months prior to Baseline visit. The minimum dose is 10 mg MTX weekly.
* Patient must be willing to attend for a Week 52 X-ray of the hands and feet even if they are no longer receiving study treatment but have not withdrawn their informed consent.

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. OA 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 RA.
* A history of an infected joint prosthesis at any time with prosthesis still in situ.
* Does not meet exclusionary concomitant medication criteria.
* A history of a lymphoproliferative disorder including lymphoma or signs and symptoms suggestive of lymphoproliferative disease at any time.
* Patients at a high risk of infection in the Investigator's opinion (e.g. leg ulcers, indwelling urinary catheter and persistent or recurrent chest infections).

Answer: D