A Phase I/III Study to Evaluate Efficacy, PK and Safety Between CT-P13 SC and CT-P13 IV in Patients With Active RA

A Randomized, Parallel-Group, Phase I/III Study to Evaluate Efficacy, Pharmacokinetics and Safety Between Subcutaneous CT-P13 and Intravenous CT-P13 in Patients With Active Rheumatoid Arthritis

This is a Phase I/III Study to Evaluate Efficacy, Pharmacokinetics and Safety between CT-P13 SC and CT-P13 IV in Patients with Active Rheumatoid Arthritis (RA).

A new subcutaneous infliximab formulation is developed by Celltrion, Inc. as an alternative to the intravenous regimen where subcutaneous infliximab injection typically takes less than 2 minutes. The availability of a subcutaneous formulation of infliximab would increase the treatment options available to patients, particularly those wishing to self-administer their therapy. This Phase I/III Study randomized, double-blinded (Part 2 only), multicenter, parallel-group study was designed to evaluate Efficacy, Pharmacokinetics and Safety between Subcutaneous CT-P13 and Intravenous CT-P13 in Patients with Active RA.

Inclusion Criteria:

• Patient is male or female between 18 and 75 years old, inclusive.
• Patient has a diagnosis of RA according to the 2010 American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) classification criteria for at least 6 months
• Patient has active disease as defined by the presence of 6 or more swollen joints (of 28 assessed), 6 or more tender joints (of 28 assessed) and serum C-reactive protein (CRP) concentration >0.6 mg/dL
• Patient who completed at least 3 months of treatment of oral or parenteral dosing with Methotrexate between 12.5 to 25 mg/kg (between 10 to 25 mg/week in Korea) and on stable dosing with Methotrexate for at least 4 weeks prior to the first administration of the study drug.

Exclusion Criteria:

• Patient who has previously received a biological agent for the treatment of RA and/or a TNFα inhibitor for the treatment of other disease
• Patient who has allergies to any of the excipients of infliximab or any other murine and/or human proteins or patient with a hypersensitivity to immunoglobulin product
• Patient who had current or past history of chronic infection with hepatitis C or human immunodeficiency virus (HIV)-1 or -2 or current infection with hepatitis B
• Patient who had acute infection requiring oral antibiotics within 2 weeks or parenteral injection of antibiotics within 4 weeks prior to the first administration of the study drug, other serious infection within 6 months prior to the first administration of study drug or recurrent herpes zoster or other chronic or recurrent infection within 6 weeks prior to the first administration of the study drug.
• Patient who had an indeterminate result for interferon-γ release assay (IGRA) or latent tuberculosis (TB) at Screening. For Part 2, if IGRA result was indeterminate at Screening, 1 retest was possible during the screening. If the repeated IGRA result was negative, the patient could be included in the study.