Pasireotide: A Novel Treatment for Tumor-Induced Hypoglycemia Due to Insulinoma and Non-Islet Cell Tumor Hypoglycemia

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Abstract

Tumor-induced hypoglycemia is a serious disorder most commonly caused by insulinoma or non-islet cell tumor hypoglycemia (NICTH). The hypoglycemia can be severe and refractory to conventional therapy, leading to significant morbidity and mortality. The objective of this work is to describe a series of challenging cases in which refractory, tumor-induced hypoglycemia was shown to respond to the use of pasireotide, a second-generation somatostatin receptor ligand. We describe the clinical and biochemical features of 3 patients with tumor-induced hypoglycemia due to an occult insulinoma, malignant insulinoma, and non-islet cell tumor hypoglycemia. In these 3 individuals, the hypoglycemia remained refractory to guideline-recommended medical therapy, such as diazoxide, nonpasireotide somatostatin analogues, and glucocorticoids. Pasireotide was substituted to attenuate the refractory hypoglycemia for each patient. The addition of pasireotide led to prompt improvement in the frequency and severity of hypoglycemic episodes for each tumor-induced hypoglycemia patient. We demonstrate the successful treatment of 3 individuals with refractory, tumor-induced hypoglycemia with pasireotide. We offer the first reported use of pasireotide for the successful treatment of nonmalignant insulinoma and non-islet cell tumor hypoglycemia.

Original languageEnglish (US)
Pages (from-to)1-7
Number of pages7
JournalJournal of the Endocrine Society
Volume5
Issue number1
DOIs
StatePublished - Jan 1 2021

Keywords

  • hypoglycemia
  • insulin-like growth factor II
  • insulinoma

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism

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