Poorly Controlled Type 2 Diabetes Despite Escalation

Clinical History

‍58-year-old male with T2DM, A1c 9.2% despite metformin 1000mg BID and glipizide 10mg BID for eight months. BMI 34, eGFR 72. Reports adherence, has made modest dietary changes. Never been on a GLP-1 or SGLT2i.

Clinical Question

‍He’s failing on metformin and a sulfonylurea. Should I add a GLP-1, an SGLT2i, or go to insulin?

Specialist Guidance

‍Go with a GLP-1 agonist. At this A1c with BMI 34, you’ll get better A1c reduction than an SGLT2i, meaningful weight loss, and cardiovascular benefit. Semaglutide or dulaglutide, start low and titrate per label. Drop the glipizide when you start the GLP-1. The GLP-1 will more than make up for it, and you’re removing a drug that causes hypoglycemia and weight gain. You can add an SGLT2i later for renal protection given the eGFR, but prioritize the GLP-1 for glycemic impact now. Insulin isn’t needed unless he’s symptomatic (polyuria, polydipsia, unintentional weight loss).

No endo referral unless A1c stays above 8.5 after 3–6 months on optimized therapy.

Outcome

‍Started semaglutide, titrated over 8 weeks. Glipizide discontinued. A1c dropped to 7.4% at 4-month follow-up. Lost 12 pounds. Managed entirely in primary care. No referral required.

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