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Pasireotide (SOM230) as a potential treatment for endocrine and non-endocrine tumors

Schmid, Herbert (2010) Pasireotide (SOM230) as a potential treatment for endocrine and non-endocrine tumors. Current Drug Therapy, 5 (4). pp. 301-311. ISSN 1574-8855


Neuroendocrine tumors are usually characterized by the overexpression of somatostatin receptors, the presence of secretory granules and the ability to secrete amines and hormones. Somatostatin receptor expression profiles vary by tumor type and may even vary over the course of the disease. Furthermore, multiple somatostatin receptor subtypes are also expressed in a number of non-neuroendocrine tumors.

Pasireotide is a multi-receptor targeted somatostatin analogue with high binding affinity for four of the five somatostatin receptor subtypes sst1,2,3 and sst5. Prolonged inhibition of hormone secretion by pasireotide in animal models and expression of multiple somatostatin receptors in neuroendocrine tumors suggest that pasireotide may have clinical advantages over the sst2-preferential somatostatin analogues, octreotide and lanreotide. Phase II clinical trials demonstrated pasireotide to be a promising treatment for patients with acromegaly, Cushing’s disease and GI-NETs, and results from ongoing Phase III clinical studies will determine the role of pasireotide in these indications.

Somatostatin analogues also have direct antitumor effects through receptor-mediated signal transduction pathways and indirect antitumor effects via inhibition of angiogenesis, suppression of growth factor and growth-promoting hormone synthesis/secretion or immunomodulatory effects. As such, pasireotide is under preclinical and clinical investigation as an antiproliferative therapy in several malignancies, both endocrine and non-endocrine.

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Date Deposited: 13 Oct 2015 13:16
Last Modified: 13 Oct 2015 13:16