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J Autoimmun. 1996 Dec;9(6):739-45.

Cyclosporine delays but does not prevent clinical onset in glucose intolerant pre-type 1 diabetic children.

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  • 1INSERM U342 and Pediatric Endocrinology, Saint Vincent de Paul Hospital, René Descartes University, Paris, France. jccarel@infobiogen.fr


We conducted a pilot study of immunosuppression with low dose cyclosporine in first degree relatives of diabetic patients with immunologic and metabolic criteria for preclinical diabetes: islet cell antibodies (ICA) > or = 20 Juvenile Diabetes Foundation (JDF) units, first phase insulin response < 10th percentile and impaired glucose tolerance. Cyclosporine was given at an initial dose of 7.5 mg/kg*d and tapered after the end of the first year. Six cyclosporine-treated relatives were compared to nine historical controls followed at the same or at different centres. All untreated patients developed diabetes within 12 months (5.9 +/- 1.1 months). Four of the cyclosporine-treated subjects developed diabetes at 5, 24, 24 and 47 months while the other two are non diabetic 47 and 57 months after entry into the trial (time to diabetes > 34 +/- 8 months, P < 0.001 vs the control group; Mann-Whitney test). First phase insulin response increased to normal values in two patients. These results suggest that reversible functional impairment, in association with beta-cell destruction, contributes to the failure of insulin secretion in preclinical type 1 diabetes.

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