Effect of Glucose on QTc Interval in Type 1 Diabetes

"1. a single oral dose of 400mg Moxifloxacin plus a hyper-glycaemic clamp for 4 hours~2. a single oral dose of 400mg Moxifloxacin plus C-peptide~3. a single oral dose of 400mg Moxifloxacin~4. placebo~Oral doses of placebo and moxifloxacin will be administered by a Research Physician or Pharmacy staff member between 08:00 a.m. and 10:00 a.m."

a hyper-glycaemic clamp only for 2 hours followed by a hyper-glycaemic clamp plus C-peptide for 2 hours