Glucose Intolerance After Short-term Administration of Corticosteroids in Healthy Subjects:  Prednisone, Deflazacort, and Betamethasone

Gianfranco Pagano, MD; Alberto Bruno, MD; Paolo Cavallo-Perin, MD; Lorella Cesco, MD; Bruno Imbimbo, MD
Arch Intern Med. 1989;149(5):1098-1101. doi:10.1001/archinte.1989.00390050082016.
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• Glucocorticoid-induced glucose intolerance has been related to the dose, duration of treatment, and steroid compound. However, a clear demonstration of this phenomenon is still lacking for fluorinated corticosteroids. We performed an oral glucose tolerance test in six healthy volunteers after the short-term administration of deflazacort (18 + 18 mg), prednisone (15 + 15 mg), and betamethasone disodium phosphate (1.5 +1.5 mg) at equivalent anti-inflammatory doses, in random sequence, and in a triple crossover design. Fasting plasma glucose levels were not modified by deflazacort, whereas fasting plasma glucose levels together with insulin and C-peptide values were progressively and significantly increased by prednisone and betamethasone. During oral glucose tolerance testing a significant increase in the plasma glucose and insulin peaks was recorded after betamethasone and, to a lesser extent, after prednisone and deflazacort. These results suggest that betamethasone induces greater glucose intolerance and insulin resistance than prednisone and deflazacort.

(Arch Intern Med. 1989;149:1093-1101)


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