Abstract
ObjectiveSevere insulin resistance syndromes, such as lipodystrophy, lead to diabetes, which is challenging to control. This study explored the safety and efficacy of sodium-glucose cotransporter 2 inhibitors (SGLT2is) in a series of 12 patients with severe insulin resistance due to partial lipodystrophy. MethodsA retrospective chart review of the safety (N = 22) and efficacy (N = 12) of SGLT2is in patients with partial lipodystrophy was conducted at our institution. The efficacy outcomes included hemoglobin A1C level, insulin dose, fasting plasma glucose level, C-peptide level, lipid profile, 24-hour urinary glucose excretion, estimated glomerular filtration rate, and blood pressure before and after 12 months of SGLT2i treatment. ResultsThe hemoglobin A1C level decreased after SGLT2i treatment (at baseline: 9.2% ± 2.0% [77.0 ± 21.9 mmol/mol]; after 12 months: 8.4% ± 1.8% [68.0 ± 19.7 mmol/mol]; P = .028). Significant reductions were also noted in systolic (P = .011) and diastolic blood pressure (P = .013). There was a trend toward a decreased C-peptide level (P = .071). The fasting plasma glucose level, lipid level, and estimated glomerular filtration rate remained unchanged. The adverse effects included extremity pain, hypoglycemia, diabetic ketoacidosis (in a patient who was nonadherent to insulin), pancreatitis (in a patient with prior pancreatitis), and fungal infections. ConclusionSGLT2is reduced the hemoglobin A1C level in patients with partial lipodystrophy, with a similar safety profile compared with that in patients with type 2 diabetes. After individual consideration of the risks and benefits of SGLT2is, these may be considered a part of the treatment armamentarium for these rare forms of diabetes, but larger trials are needed to confirm these findings.
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