Insulin Glargine Plus Insulin Glulisine Multiple Daily Injections (MDI) Versus Premix Insulin Treatment in Subjects With Diabetes Mellitus (Type 1 or Type 2)

Sequence 1 (Lantus + Apidra first, then Premix): Subjects randomized to this sequence will receive ApidraTM administered three times per day 0-15 minutes before main meals using a fixed bolus regimen following titration based on preprandial blood glucose values; as well as Lantus qd for 12 weeks. After the first 12 weeks, subjects will cross over to the premix insulin for a further treatment of 12 weeks.

Sequence 2 (Premix first, then Lantus + Apidra): Subjects randomized to this sequence will receive premix insulin (either Humalog Mix 75/25 or Novolog Mix 70/30, depending on which insulin they were taking at entry into the study) once or twice per day for 12 weeks. After the first 12 weeks, subjects will cross over to the Lantus plus Apidra sequence for a further treatment of 12 weeks.