Trial of Otelixizumab for Adults With Newly Diagnosed Type 1 Diabetes Mellitus (Autoimmune): DEFEND-1

Study Summary

The purpose of this study is to find out if an 8-day series of otelixizumab infusions leads to greater improvement in insulin secretion as compared with placebo infusion. Insulin secretion will be assessed using mixed meal-stimulated C-peptide. Subjects will be assigned to receive either otelixizumab or placebo at a ratio of 2:1 (2/3 otelixizumab, 1/3 placebo). These study agents will be administered as an addition to insulin, diet, and other physician determined standard of care treatments. DEFEND-1 is now closed to enrollment. DEFEND-2 will begin early in 2010. It is very similar to DEFEND-1 and will again require subjects with new onset type 1 diabetes. Please check back here for more details. In the meantime, established and new onset type 1 diabetes patients in North America are welcome to consider the TTEDD study: http://www.clinicaltrials.gov/ct2/show/NCT00451321?term=TTEDD\&rank=1

Primary Outcome

Mixed meal-stimulated C-peptide AUC was the area under the C-peptide/time curve from Time 0 to 120 minutes, calculated using the trapezoidal rule. This reported AUC was normalized for time interval by dividing it by 120 minutes. This normalized AUC was calculated for each participant at Baseline, Week 12, and at Months 6, 12, 18, and 24. Data has been presented for meal stimulated C-peptide Area under assessment performed at Month 12. Baseline assessments were carried out on the morning of Day 1

Interventions

• BIOLOGICAL otelixizumab infusion plus physician determined standard of care
• BIOLOGICAL placebo infusion plus physician determined standard of care