Navigating Insulin Options for Diabetes Management

Insulin therapy is first-line therapy for people with type 1 diabetes and often used for people with type 2 diabetes. Over the years, there has been a surge in insulin products available for use. As a result, clinicians need to have a strong understanding of the differences between insulin agents to provide proper patient care.

We included population-level data and searched PubMed and Google Scholar databases for recent systematic reviews, meta-analyses, and original research articles.

Patients who present with severe hyperglycemia or signs consistent with a catabolic state such as weight loss or ketonuria should be initiated on insulin. Furthermore, patients with a hemoglobin A1c (HbA1c) level >10% or an unclear diagnosis of type 1 diabetes should typically be treated with insulin. Insulin products differ mainly in their pharmacokinetic profiles and not mechanism of action. The literature suggests that differences in pharmacokinetics allow certain insulin products to be well equipped to address different clinical situations such as steroid-induced hyperglycemia, managing patients with severe chronic kidney disease or dialysis, and insulin pump therapy.

Understanding kinetic profiles of different insulin agents will allow clinicians to properly navigate options for either fasting or mealtime coverage. Furthermore, this foundational knowledge will be critical when applying insulin therapy in clinical scenarios such as steroid-induced hyperglycemia, kidney disease, and insulin pump management. Ultimately, this will allow clinicians and patients to create proper diabetes care plans and self-management skills.