Insulin Tapering in Elderly Patients with Type 2 Diabetes

Introduction to Insulin Tapering

• The American Diabetes Association recommends a gradual reduction of insulin while adding non-insulin agents, with careful monitoring of blood glucose levels every 2 weeks, for a 90-year-old patient with type 2 diabetes 1

Glycemic Targets

• For a 90-year-old patient, a more relaxed glycemic target is recommended, with a fasting glucose goal of 90-150 mg/dL and an A1C goal of <8.0% for patients with complex health status 1

Insulin Regimen Evaluation

• The current insulin regimen (basal, prandial, or premixed) should be evaluated, and renal function (eGFR) should be assessed to guide medication choices 1

Insulin Dose Adjustment

• Basal insulin can be titrated based on fasting glucose readings over a week, with an increase of 2 units if 50% of fasting values are above goal, and a decrease of 2 units if >2 fasting values/week are <80 mg/dL 1
• Prandial insulin can be discontinued and replaced with a non-insulin agent if the dose is ≤10 units/dose, or decreased by 50% and combined with a non-insulin agent if the dose is >10 units/dose 1

Non-Insulin Agents

• DPP-4 inhibitors are recommended as a second-line agent due to their minimal hypoglycemia risk and tolerability in elderly patients 1
• SGLT-2 inhibitors and GLP-1 receptor agonists can also be considered based on patient characteristics, such as cardiovascular or renal benefits, and potential GI side effects 3

Monitoring and Adjustment

• Fasting glucose levels should be monitored daily for the first 2 weeks, and insulin dose adjusted every 2 weeks based on glucose patterns 1
• Pre-meal glucose levels should be checked before lunch and dinner, and the patient re-evaluated every 2-4 weeks until stable on oral agents 1

Special Considerations

• Hypoglycemia risk should be prioritized, with a focus on agents with low hypoglycemia risk, such as metformin and DPP-4 inhibitors 1
• Polypharmacy should be simplified when possible to improve adherence, and renal function should be considered when adjusting medication doses 1
• Cognitive function should be ensured, with adequate support in place for patients who may struggle to manage their medication regimen 1