Abstract
Pasireotide (PAS), a multireceptor somatostatin analog, has been demonstrated to effectively control hormone levels, including those of growth hormone (GH) and insulin-like growth factor 1 (IGF-1), in patients with acromegaly. However, it induces hyperglycemia by inhibiting insulin secretion via somatostatin receptor 5 (SSTR5). Despite the extensive literature on the occurrence of PAS-induced hyperglycemia, there is still no consensus on the optimal first-line treatment for this complication. Herein, we present two cases of acromegaly treated with PAS and highlight its short- and long-term effects on glucose metabolism. In the first case, postprandial hyperglycemia manifested rapidly following the commencement of PAS treatment and was effectively managed with dulaglutide under continuous glucose monitoring (CGM). In the second case, long-term PAS therapy resulted in a dose-dependent glycemic response that was controlled by different GLP-1 receptor agonists (GLP-1RAs), including semaglutide. CGM facilitated the early detection of significant glycemic fluctuations, underscoring the necessity for close monitoring in patients receiving PAS therapy. These cases demonstrate the efficacy of GLP-1RAs in managing PAS-induced hyperglycemia and highlights the value of CGM in early detection and intervention. Our findings suggest that GLP-1RAs, particularly semaglutide, are a valuable treatment option for this condition. Further research is needed to determine the optimal treatment strategy, particularly in East Asian populations, and to establish a clear consensus on the first-line therapy for PAS-induced hyperglycemia.
Published Version
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