Investigation of Otelixizumab in New-Onset, Autoimmune Type 1 Diabetes Mellitus Patients

The aim of this Phase I/IIa study is to identify a safe and tolerable dosage regimen of intravenously administered otelixizumab. In addition, the C-peptide decline in new onset type 1 diabetes mellitus (NOT1DM) patients and possible immunological mechanisms will be investigated with a view to identifying trends and early immunological biomarkers which could predict response in halting/slowing Beta-cell destruction in this patient population. This exploratory study will explore the safety and tolerability between the well tolerated but non-efficacious cumulative dose of 3.1 mg and a cumulative dose of 48 mg at which efficacy based on C-peptide analysis was demonstrated, albeit with evidence of Epstein Barr Virus (EBV) reactivation and Cytokine Release Syndrome (CRS). Exploration of the tolerability dose response is considered a necessary first step to determining the therapeutic index of otelixizumab.