| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
| Refractory rheumatoid arthritis  | 
 
 
 | 
| E.1.1.2 | Therapeutic area  | Diseases [C] - Musculoskeletal Diseases [C05] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 14.1 | 
 
| E.1.2 | Level  | PT | 
 
| E.1.2 | Classification code  | 10039073 | 
 
| E.1.2 | Term  | Rheumatoid arthritis | 
 
| E.1.2 | System Organ Class  | 10028395 - Musculoskeletal and connective tissue disorders | 
 
 
 | 
| E.1.3 | Condition being studied is a rare disease  |  No  | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial  | 
Compare pharmacokinetics (PK) of GP2013 and rituximab following IV infusion in patients with RA [ Time Frame: 24 weeks ] [ Designated as safety issue: No ]
 
 
 
 | 
 
 
 | 
| E.2.2 | Secondary objectives of the trial  | 
•  Additional pharmacokinetic (PK) parameters, pharmacodynamic (PD) and efficacy of GP2013 and rituximab in subjects with RA [ Time Frame: 1.5 years ] [ Designated as safety issue: No ]
 
 • Safety and tolerability of GP2013 and rituximab in patients with RA [ Time Frame: 1.5 years ] [ Designated as safety issue: No ]
 
 
 
 For additional secondary objectives please see full protocol | 
 
 
 | 
| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
•Rheumatoid arthritis as defined by the 1987 ACR classification
 •Severe active seropositive disease
 •Inadequate response or intolerance to other DMARDs and anti-TNFs
 •Treatment with Methotrexate
 
 For additional inclusion criteria, please refer to section 4.1 of the protocol. | 
 
 
 | 
| E.4 | Principal exclusion criteria | 
•Patients with systemic manifestations of rheumatoid arthritis
 •Female patients nursing
 •Women of childbearing potential unless using birth control
 •Active infection
 •Known immunodeficiency syndrome
 •Positive Hepatitis B surface antigen or antibodies to Hepatitis C
 •History of cancer
 
 For additional exclusion criteria, please refer to section 4.2 of the protocol. | 
 
 
 | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
The primary PK variable is
 • AUC(0-∞), i.e. the PK profile will be derived over the entire 1st treatment course including both infusions, of GP2013 and rituximab concentrations determined in serum samples collected over
 24 weeks. | 
 
 
 | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
Primary endpoint determined based on serum samples collected over
 24 weeks. | 
 
 
 | 
| E.5.2 | Secondary end point(s) | 
PK parameter: Cmax of the 1st infusion
 
 PD parameter: depletion of CD20 positive peripheral B cells (cells/μL)
 
 Please refer to the clinical study protocol for additional details. | 
 
 
 | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| Please refer to the clinical study protocol for additional details. | 
 
 
 | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis |  No  | 
| E.6.2 | Prophylaxis |  No  | 
| E.6.3 | Therapy |  No  | 
| E.6.4 | Safety |  Yes  | 
| E.6.5 | Efficacy |  Yes  | 
| E.6.6 | Pharmacokinetic |  Yes  | 
| E.6.7 | Pharmacodynamic |  Yes  | 
| E.6.8 | Bioequivalence |  Yes  | 
| E.6.9 | Dose response |  No  | 
| E.6.10 | Pharmacogenetic |  No  | 
| E.6.11 | Pharmacogenomic |  No  | 
| E.6.12 | Pharmacoeconomic |  No  | 
| E.6.13 | Others |  No  | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) |  No  | 
| E.7.1.1 | First administration to humans |  Yes  | 
| E.7.1.2 | Bioequivalence study |  Yes  | 
| E.7.1.3 | Other |  No  | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) |  Yes  | 
| E.7.3 | Therapeutic confirmatory (Phase III) |  No  | 
| E.7.4 | Therapeutic use (Phase IV) |  No  | 
| E.8 Design of the trial | 
| E.8.1 | Controlled |  Yes  | 
| E.8.1.1 | Randomised |  Yes  | 
| E.8.1.2 | Open |  No  | 
| E.8.1.3 | Single blind |  No  | 
| E.8.1.4 | Double blind  |  Yes  | 
| E.8.1.5 | Parallel group |  No  | 
| E.8.1.6 | Cross over  |  No  | 
| E.8.1.7 | Other |  No  | 
| E.8.2 |  Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) |  Yes  | 
| E.8.2.2 | Placebo  |  No  | 
| E.8.2.3 | Other |  No  | 
| E.8.2.3.1 | Comparator description | 
 | 
| E.8.3 | 
                                The trial involves single site in the Member State concerned
                             |  No  | 
| E.8.4 |  The trial involves multiple sites in the Member State concerned  |  Yes  | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 2 | 
| E.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 38 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA |  Yes  | 
| E.8.6.2 | Trial being conducted completely outside of the EEA |  No  | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned | 
| Argentina | 
 
| Austria | 
 
| Belgium | 
 
| Brazil | 
 
| France | 
 
| Germany | 
 
| India | 
 
| Italy | 
 
| Romania | 
 
| Spain | 
 
| Turkey | 
 
 
 | 
| E.8.7 | Trial has a data monitoring committee |  Yes  | 
| E.8.8 | 
                        Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial
                     | 
| A patient will be considered to have completed the study when all scheduled study assessments and procedures up to and including Visit 14 (week 52) or, in case of retreatment with another course of study medication, his/ her 26 weeks safety, efficacy and PD follow-up visit, whichever is later, have been concluded. | 
 
 
 | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 6 | 
| E.8.9.1 | In the Member State concerned months | 0 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 6 | 
| E.8.9.2 | In all countries concerned by the trial months | 0 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |