Pharmacokinetic and Glucodynamic Crossover Study of Subcutaneously (SC) Administered Insulin Lispro + Recombinant Human Hyaluronidase (rHuPH20) and Regular Human Insulin + rHuPH20 Compared to Insulin Lispro Alone

Insulin lispro and regular human insulin are Food and Drug Administration (FDA)-approved medications for the treatment of diabetes mellitus. Recombinant human hyaluronidase (rHuPH20) is approved by the FDA as an aid to the absorption and dispersion of other injectable drugs. In this study, rHuPH20 will be co-administered with both insulin lispro and regular human insulin in order to determine if it improves the absorption of these insulins to more closely mimic the body's natural increase in insulin in response to a meal.