Clinical Trial to Compare Treatment With GP2017 and Humira® in Patients With Rheumatoid Arthritis

The purpose of this study is to demonstrate similar efficacy and safety of GP2017 and
US-licensed Humira® in patients with moderate to severe rheumatoid arthritis (RA) with
inadequate response to Disease modifying anti-rheumatic drugs (DMARDs), including
methotrexate (MTX).

Inclusion Criteria:

1. Patients must have been diagnosed with RA ≥ 6 months prior to screening

2. Patients must have active disease, defined as DAS28-CRP ≥ 3.2 at the time of screening

3. Patients must have CRP levels above 5mg/l or ESR levels above the upper limits of
normal

4. Patients must have had inadequate clinical response to MTX 10 - 25 mg/week

Exclusion Criteria:

1. Previous treatment with adalimumab, other anti-TNFα therapies or cell depleting
agents, e.g. anti-CD20 therapy

2. Women of child-bearing potential, defined as all women physiologically capable of
becoming pregnant, unless they are using highly effective methods of contraception
during treatment

3. Nursing (lactating) or pregnant women

4. History of or ongoing inflammatory or autoimmune diseases other than RA, e.g. mixed
connective tissue disease, systemic lupus erythematosus etc.

5. Systemic corticosteroids > 7.5mg/day within 4 weeks prior to baseline

6. History or presence of cancer or lymphoproliferative disease other than a successfully
and completely treated non-metastatic cutaneous squamous cell or basal cell carcinoma
and/or localized carcinoma in situ of the cervix and/or removed non-invasive colon
polyps, with no evidence of recurrence

7. History of uncontrolled diabetes, unstable ischemic heart disease, congestive heart
failure (New York Heart Association III-IV), active peptic ulcer disease, recent
stroke (within 3 months)

8. Subject known to have immune deficiency, history of positive human immunodeficiency
virus (HIV) status or immunocompromised for other reasons

9. History of clinically significant hematologic (e.g. severe anemia, leucopenia,
thrombocytopenia), renal or liver disease (e.g. glomerulonephritis, fibrosis,
cirrhosis, hepatitis)

10. History of persistent chronic infection; recurrent infection or active infections

11. History of tuberculosis, presence of active tuberculosis, latent tuberculosis as
detected by imaging (e.g. chest X-ray, chest Computerized Tomography(CT) scan,
Magnetic Resonance Imaging (MRI)) and/ or positive QuantiFERON-TB Gold test (QFT)

12. History or evidence of opportunistic infections, e.g. histoplasmosis, listeriosis,
legionellosis

13. Positive serology Hepatitis B (either HBsAg or anti-HBc) or Hepatitis C (positive
HCV-Ab or HCV-RNA) indicative of previous or current infections