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Mutations in hepatocyte nuclear factor 1-alpha (HNF1A) cause HNF1A-diabetes (or maturity-onset diabetes of the young type 3 (MODY3)) . Treatment of HNF1A-diabetes is primarily based on sulphonylureas (SU) and secondarily insulins, glucagon-like peptide 1 receptor agonists (GLP1-RA) and dipeptidyl peptidase-4 inhibitors (DPP4i) . Sodium-glucose cotransporter-2 inhibitors (SGLT2i) are effective glucose-lowering agents, cause body weight loss and protect from chronic kidney disease, heart failure and major adverse cardiovascular events. The utility of SGLT2i in patients with HNF1A-diabetes is unknown. Here, we describe a case series of five patients with HNF1A-diabetes treated with SGLT2i. Patient characteristics (median [range]) : age: 52 [35; 68] years; men/women: n=4/1; diabetes duration: 23 [9; 55] years; age at diabetes onset: 18 [13; 44] years; HbA1c: 6.9 [6.0; 7.4]% (52 [42; 57] mmol/mol) ; body weight: 92.3 [65.5; 95.1] kg; BMI: 25.6 [23.8; 29.4] kg/m2. At baseline, patients were treated with SU (n=5) , insulin (n=3; total daily dose: 15 [6; 25] IE divided into 1-4 injections/day) , DPP-4i (n=3) , GLP1-RA (n=2) , metformin (n=1) . All patients were started on empagliflozin mg QD. Follow-up was 1.5 [0.7; 1.8] years (total 6.2 patient years) . After three to six months of SGLT2i therapy, HbA1c was 6.1 [5.5; 7.5]% (43 [37; 59] mmol/mol) and had decreased in four patients (HbA1c change: -0.5 [-1.3; 0.7]% (-5 [-14; 8] mmol/mol)) , while body weight had decreased in all patients (change: -3.4 [-5.9; -1.5] kg) . During SGLT2i treatment, insulin was fully ceased in two patients and insulin dose was reduced from 15 IE/day to 3 IE/day in one patient. No serious adverse events were reported. Our data suggest that SGLT2i is safe, have glucose-lowering effects and is well-tolerated in HNF1A-diabetes, but randomized controlled trials are needed. Disclosure H.Maagensen: None. S.Haedersdal: None. J.Krogh: None. T.Hansen: None. F.K.Knop: Advisory Panel; Boehringer Ingelheim International GmbH, Eli Lilly and Company, Merck Sharp & Dohme Corp., Novo Nordisk, Sanofi, ShouTi, Zucara Therapeutics, Consultant; AstraZeneca, Eli Lilly and Company, Novo Nordisk, Pharmacosmos A/S, Sanofi, ShouTi, Zealand Pharma A/S, Zucara Therapeutics, Research Support; AstraZeneca, Novo Nordisk, Sanofi, Zealand Pharma A/S, Speaker's Bureau; AstraZeneca, Bayer AG, Boehringer Ingelheim International GmbH, Eli Lilly and Company, Novo Nordisk, Sanofi, Stock/Shareholder; Antag Therapeutics. T.Vilsbøll: Consultant; AstraZeneca, Bristol-Myers Squibb Company, Eli Lilly and Company, Gilead Sciences, Inc., GlaxoSmithKline plc., Merck Sharp & Dohme Corp., Mundipharma, Novo Nordisk, Sun Pharmaceutical Industries Ltd. |
