Please select the eligibility criteria that correspond to the clinical trial below.
Title: A RANDOMIZED, DOUBLE-BLIND, PARALLEL-GROUP STUDY TO EVALUATE THE SAFETY AND EFFICACY OF SWITCHING FROM INNOVATOR INFLIXIMAB TO BIOSIMILAR INFLIXIMAB COMPARED WITH CONTINUED TREATMENT WITH INNOVATOR INFLIXIMAB IN PATIENTS WITH RHEUMATOID ARTHRITIS, SPONDYLOARTHRITIS, PSORIATIC ARTHRITIS, ULCERATIVE COLITIS, CROHN'S DISEASE AND CHRONIC PLAQUE PSORIASIS THE NOR-SWITCH STUDY
Brief Summary: The purpose of this study is to assess the safety and efficacy of switching from Remicade to the biosimilar treatment Remsima in patients with rheumatoid arthritis, spondyloarthritis, psoriatic arthritis, ulcerative colitis, Crohn's disease and chronic plaque psoriasis


Options:
A: Inclusion Criteria:

* Luminal Crohn's disease defined according to standardized diagnostic criteria.
* Age ≥ 18 years.
* IFX induction treatment week 0, 2, 6 followed by maintenance therapy.
* IFX treatment length minimum 12 months. Episodic therapy with IFX pause \> 12 weeks is not accepted within the last year. The treatment interval in the last three months has to be of 6-10 weeks.
* Complete remission defined as:

  * CDAI score \< 150 and
  * Biochemical remission, and
  * No other signs of disease activity as evaluated by endoscopic examination or by magnetic resonance imaging (MRI).
* Stable remission, judged by the treating physician, at two consecutive treatments visits corresponding 2 scheduled IFX infusions. Thus, the first visit is during IFX maintaining therapy (screening visit). The second visit is at time of inclusion corresponding time of next scheduled IFX infusion (i.e. after ≈ 8 weeks).
* No use of oral steroids within 3 months prior to inclusion.
* Concomitant therapy with other immune suppressants, except steroids, is allowed. The dosage and frequency must have been stable three months prior to inclusion and must remain stable throughout the study period.

Exclusion Criteria:

* Initial indication for IFX being predominantly fistulizing perianal disease.
* Any contraindications for continuing IFX treatment, including prior acute or delayed infusion reaction to a TNF- inhibiting agent, any active infection requiring parenteral or oral antibiotic treatment, known infection with tuberculosis, human immunodeficiency virus (HIV) or hepatitis virus.
* Any condition including physician finds incompatible with participation in the study or the patient being unwilling or unable to follow protocol requirements.
B: Inclusion Criteria:

* Male or female patients with active Crohn's disease and a Crohn's disease activity index score between 220 and 450 points

Exclusion Criteria:

* Patient who has previously received a biological agent for the treatment of Crohn's disease and/or a Tumor necrosis factor (TNF)-alpha inhibitor for the treatment of other disease.
* Patient who has allergies to any of the excipients of infliximab, any other murine and/or human proteins, or patient with a hypersensitivity to immunoglobulin product.
C: Inclusion Criteria:

1. A clinical diagnosis of either rheumatoid arthritis, spondyloarthritis, psoriatic arthritis, ulcerative colitis, Crohn's disease or chronic plaque psoriasis
2. Male or non-pregnant, non-nursing female
3. \>18 years of age at screening
4. Stable treatment with innovator infliximab (Remicade) during the last 6 months
5. Subject capable of understanding and signing an informed consent form
6. Provision of written informed consent

Exclusion Criteria:

1. Major co-morbidities, such as severe malignancies, severe diabetic mellitus, severe infections, uncontrollable hypertension, severe cardiovascular disease (NYHA class 3 or 4) and/or severe respiratory diseases
2. Change of major co-medication during the last 2 months prior to randomization:

   RA, SpA and PsA: Initiation of systemic corticosteroids or synthetic DMARDs or other medication which according to the investigator would interfere with the stability of the disease.

   UC and CD: Initiation of systemic corticosteroids or an immunosuppressant or other medication which according to the investigator would interfere with the stability of the disease Psoriasis: Initiation of synthetic DMARDs or other medication which according to the investigator would interfere with the stability of the disease
3. Inadequate birth control, pregnancy, and/or breastfeeding
4. Psychiatric or mental disorders, alcohol abuse or other substance abuse, language barriers or other factors which makes adherence to the study protocol impossible
5. Change in treatment with innovator infliximab (Remicade) during the last 6 months due to disease related factors, not including dose/frequency adjustments due to drug concentration measurements
D: Inclusion Criteria:

* Have a documented diagnosis of CD confirmed by endoscopic, histologic and/or radiologic studies prior to resection or by tissue obtained at resection
* Have undergone an ileocolonic surgical resection
* Patients must also be at an increased risk of recurrence of active CD
* Patients must not have previously discontinued infliximab as a result of tolerability issues or they must be naive to treatment with infliximab. Provided patients meet the above criteria pertaining to infliximab, they are eligible to enroll if they received prior treatment with adalimumab and/or certolizumab
* Patients must undergo screening for HBV
* Baseline CDAI \< 200
* Have adequate blood and liver test values

Exclusion Criteria:

* Have a history of latent or active granulomatous infection, including histoplasmosis or coccidioidomycosis, prior to screening
* Have a chest radiograph within 3 months prior to the first infusion of study agent that shows a clinically significant abnormality, such as a malignancy or infection, or any abnormalities suggestive of TB
* Have macroscopically active CD which was not resected at the time of surgery
* Do not meet the criteria for being at an increased risk of postoperative recurrence of active CD as outlined in the inclusion criteria
* Have evidence of an active infection at the time of randomization or have had a serious infection not related to CD (e.g., hepatitis, pneumonia, or pyelonephritis), within 6 months prior to screening
* Have or have had an opportunistic infection (e.g., herpes zoster \[shingles\], cytomegalovirus, Pneumocystis carinii, aspergillosis, histoplasmosis, or mycobacteria other than TB) within 6 months prior to screening
* Have any known malignancy or history of malignancy within the 5-year period prior to screening (with the exception of squamous or basal cell carcinoma of the skin that has been completely excised without evidence of recurrence)
* Have any condition that, in the opinion of the investigator, would compromise the well-being of the patient or the study or prevent the patient from meeting or performing study requirements.

Answer: C