Hospital Management of Hyperglycemia Study of Insulin Glargine Plus Insulin Lispro Versus Human Regular Insulin

This study involves a comparison of 2 methods for administering subcutaneous insulin therapy to non-critically ill adult patients with hyperglycemia and without known history of diabetes who are admitted to non-intensive care unit (ICU) general medical hospital services. Basal-bolus therapy, considered the gold standard for glucose control in patients with known diabetes, will be compared with sliding scale insulin, a commonly used method of glucose control (prevailing standard practice) in hospitalized patients. In this study, basal-bolus therapy will consist of once-daily glargine plus lispro 3 to 4 times daily adjusted to achieve pre-meal capillary plasma glucose \<140 milligrams per deciliter (mg/dL) and bedtime capillary plasma glucose \<180 mg/dL for patients who are eating \[predose plasma glucose \<140 mg/dL for patients with nil per os (NPO) orders\]; sliding scale insulin will be administered using human regular insulin 4 times daily as needed adjusted to achieve predose capillary plasma glucose target \<140 mg/dL in patients who are eating or have NPO orders.