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

1. Male and female subjects aged ≥18 years at the time of signing the Informed Consent Form.
2. Patients with a diagnosis of rheumatoid arthritis as per the ACR/EULAR 2010 classification criteria (Appendix 7) confirmed at least 24 weeks prior to the screening visit.
3. Patients who have failed conventional DMARD therapy as per NICE/BSR Guidelines (49) i.e. failure of at least 2 DMARDS including MTX.
4. Patients with persistent RA disease activity despite having been treated with a current initial TNFi agent for at least 12 weeks. Active RA defined as\*:

   1. Primary non-response: failing to improve DAS28 by \> 1.2 (Appendix 6) or failing to achieve DAS28 ≤ 3.2 within the first 12 to 24 weeks of starting the initial TNFi.

      • This may include patients that have shown a reduction in DAS28 of \> 1.2 but still demonstrate unacceptably high disease activity in the physician's judgement with evidence of an overall DAS28 of ≥ 3.2 OR
   2. Secondary non-response: defined as inefficacy to first TNFi (having demonstrated prior satisfactory response) as per clinician judgement; with intolerance not the reason for cessation of first TNFi.
5. MTX dose stable for 4 weeks prior to the screening visit and to be continued for the duration of the study.
6. Patients on NSAIDs and / or corticosteroids (oral prednisolone not exceeding 10mg daily) who have been on an unchanged regimen for at least 4 weeks prior to the screening visit and are expected to remain on a stable dose until the baseline assessments have been completed.
7. Provided written informed consent prior to any trial-specific procedures.

Exclusion Criteria

1. Major surgery (including joint surgery) within 8 weeks prior to the screening visit or planned major surgery within 52 weeks following randomization.
2. Patients with inflammatory joint disease of different origin, mixed connective tissue disease, Reiter's syndrome, psoriatic arthritis, systemic lupus erythematosus, or any arthritis with onset prior to 16 years of age.
3. Patients receiving doses of prednisolone \> 10mg/day within the 4 weeks prior to the screening visit.
4. Patients receiving intra-articular or intra-muscular steroid injections within 4 weeks prior to the screening visit.
5. Patients who have previously received more than 1 TNFi drug OR any other biological therapy for the treatment of RA.
6. Patients unable or unwilling to stop treatment with a prohibited DMARD (i.e synthetic DMARD aside from MTX e.g. oral or injectable gold, chloroquine, hydroxychloroquine, cyclosporine, azathioprine, leflunomide, sulphasalazine) prior to the start of protocol treatment.
7. Treatment with any investigational drug in the last 12 weeks prior the start of protocol treatment.
8. Patients with other co-morbidity including acute, severe infections, uncontrolled diabetes, uncontrolled hypertension, unstable ischaemic heart disease, moderate/severe heart failure (Class III/IV of the New York Heart Association (NYHA) functional classification system (79)), active bowel disease, active peptic ulcer disease, recent stroke (within 12 weeks before the screening visit), or any other condition which, in the opinion of the investigator, would put the patient at risk to participate in the study or would make implementation of the protocol difficult.
9. Patients with any major episode of infection requiring hospitalisation or treatment with IV antibiotics within 12 weeks of start of treatment protocol or oral antibiotics within 4 weeks of start of protocol treatment.
10. Patients at significant risk of infection, which in the opinion of the investigator would put the patient at risk to participate in the study (e.g. leg ulceration, indwelling urinary catheter, septic joint within 52 weeks (or ever if prosthetic joint still in situ)).
11. Patients with known active current or history of recurrent bacterial, viral, fungal, mycobacterial or other infections including herpes zoster (for tuberculosis and Hepatitis B and C see below), but excluding fungal infections of nail beds as per clinical judgment.
12. Patients with untreated active current or latent tuberculosis (TB). Patients should have been screened for latent TB (as per BSR guidelines) within 24 weeks prior to the screening visit and, if positive, treated following local practice guidelines prior to the start of protocol treatment.
13. Patients with active current hepatitis B and/or C infection. Patients should have been screened for hepatitis B and C within 24 weeks prior to the screening visit and if positive, excluded from the study.
14. Primary or secondary immunodeficiency (history of or currently active) unless related to primary disease under investigation.
15. Pregnancy, lactation or women of child-bearing potential (WCBP) unwilling to use an effective birth control measure (Appendix 2) whilst receiving treatment and after the last dose of protocol treatment as indicated in the relevant SmPC/IB.
16. Men whose partners are of child-bearing potential but who are unwilling to use an effective birth control measure (Appendix 2) whilst receiving treatment and after the last dose of protocol treatment as indicated in the relevant SmPC/IB.
17. Patients with known significantly impaired bone marrow function as for example significant anaemia, leukopaenia, neutropaenia or thrombocytopaenia as shown by the following laboratory values at the time of the screening visit:

    * Haemoglobin \< 8.5 g/dl
    * Platelet count \< 100 x 109 / L
    * White blood cell count \< 2.0 x 109 / L
    * Neutrophil count \< 1 x 109 / L
18. Patients with known severe hypoproteinaemia at the time of the screening visit, e.g. in nephrotic syndrome or impaired renal function, as shown by:

    * Serum Creatinine \> 150 umol / L
B: 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.
C: Inclusion Criteria:

1. Patients (more than 18 years) with rheumatoid arthritis according to the ACR classification criteria (1) who have had the diagnose \< 6 months.

2. Moderate to severe rheumatoid arthritis defined as DAS28 (CRP-based) \> 3.2.

3. Negative pregnancy test (serum HCG) for women of childbearing potential prior to trial start. (Non-fertile women are defined as postmenopausal for at least 1 year or surgical sterilisation (bilateral tubal ligation, bilateral oophorectomy or hysterectomy)). Fertile women included in the trial should use contraception during the entire trial period (i.e. one of the following methods: Oral contraception, intrauterine device (IUD), depot injection of progesterone, subdermal implantation, contraceptive vaginal ring, transdermal depot plaster). In addition, contraception should be used for a period of 150 days after any discontinuation of trial medicine.

4. Ability and willingness to inject the sc. injections him/herself or to have an assistant give the injections.

5. Ability and willingness to give written informed consent and to meet the requirements of the trial protocol.

Exclusion Criteria:

1. Persons with latent TB defined with a positive Mantoux test (\>12 mm for vaccinated and 6 mm for non-vaccinated), positive cultivation of mycobacteria in tissue samples, chest X-ray indicating TB,or other risk factors for activation of untreated latent TB, and persons not been given adequate TB prophylaxis according to the instructions of the department.

2. Active or recurrent infections or severe infections requiring hospitalization or treatment with i.v. antibiotics within the last 30 days or oral antibiotics within the last 14 days prior to inclusion

3. Positive serology for Hepatitis B or C indicating active infection.

4. Medical history with a positive HIV status (Check of HIV test upon suspicion).

5. Medical history with histoplasmosis or listeriosis.

6. Previous cancer or lymph proliferative disease except cases teated radically and have been without relapse for a minimum of 5 years.

Patients with previous squamous cell carcinoma, basal cell skin carcinoma or cervical dysplasia, who have been treated successfully and radically can be included.

7. Previous diagnosis or signs of demyelinized disease in the CNS system (e.g. optic neuritis, visual disorder, disturbed gait, facial paralysis, apraxia).

8. Severe renal insufficiency (creatinine clearance \< 35 ml/min - nomogram).

9. Affected liver function: Liver enzymes \> 2 x above normal limit value.

10. Clinical significant drug or alcohol abuse during the past year and/or current daily alcohol consumption.

11. Unstable diabetes, unstable ischemic heart disease, heart insufficiency (NYHA III-IV), active chronic inflammatory intestinal disease, recent cerebral apoplexia (within 3 months), chronic leg ulcer or any other condition (e.g. kateter a demeure)which according to the investigator imposes an increased risk to the subject, if he/she participates in the protocol.

12. Anticoagulant therapy.

13. Pregnancy or breast-feeding.

14. Other inflammatory rheumatic diseases.

15. Aggressive parvovirus B19 infection.

16. Previous treatment with one or more DMARDs.

17. Glucocorticosteroid treatment within the last 4 weeks (except nasal and inhalation steroids).

18. Contraindications for trial medicine.
D: Inclusion Criteria:

* adult patients, ≥ 18 years of age;
* moderate to severe active rheumatoid arthritis (Disease Activity Score (DAS28) \> 4.4);
* inadequate response to methotrexate;
* on a stable dose of ≥ 15mg/week methotrexate for at least 6 weeks.

Exclusion Criteria:

* prior treatment with a biologic;
* Rheumatoid arthritis (RA) functional class IV;
* known active current or history of recurrent bacterial, viral, fungal, mycobacterial or other infections;
* evidence of active malignant disease.

Answer: B