Continuous Glucose Monitoring-Guided Insulin Optimization in Patients Receiving Nocturnal Parenteral Nutrition.

IF 16.6

Diabetes care Pub Date : 2026-10-08 DOI:10.2337/dc26-0936

Laurianne Kerlogot, Vincent Rigalleau, Gauthier Pellet, Constance Chevrier, Coraline Baldé, Eva Wilsius, Marion Pidoux, Marion Jeamart, Florian Poullenot

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Abstract

Objective: To evaluate whether a continuous glucose monitoring (CGM) system (CGMS)-guided insulin optimization can improve glucose control and nutritional status in insulin-treated patients receiving long-term nocturnal parenteral nutrition (PN).

Research design and methods: In this prospective single-center study, 12 insulin-treated adults with chronic intestinal failure undergoing nocturnal cyclic PN underwent 30-day CGM assessment before and after a diabetologist-led optimization of insulin therapy.

Results: Glucose profiles improved after the intervention: less time >250 mg/dL (27% to 17%; -139 ± 113 min/day; P = 0.02), more time in range (44% to 59%; +206 ± 118 min/day; P = 0.002), and without more hypoglycemia. HbA1c decreased by -0.7% (-8 mmol/mol; P = 0.04), and glycosuria resolved in all affected patients (P = 0.03). Body weight increased by +5 kg (interquartile range 4-7.75; P = 0.006), as did serum albumin (+8 g/L; P = 0.006). Malnutrition resolved among 8 of 11 participants (P < 0.05).

Conclusions: CGMS-guided insulin optimization was associated with improvements in glucose control and nutritional status.

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