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Review
. 2023 Dec 7;12(24):7557.
doi: 10.3390/jcm12247557.

Predictive Factors of Response to Streptozotocin in Neuroendocrine Pancreatic Neoplasms

Affiliations
Review

Predictive Factors of Response to Streptozotocin in Neuroendocrine Pancreatic Neoplasms

Giuseppe Fanciulli et al. J Clin Med. .

Abstract

Pancreatic neuroendocrine neoplasms (Pan-NENs) may exhibit a heterogeneous clinical course, ranging from indolent to progressive/metastatic behavior. In the latter scenario, streptozocin (STZ) is considered the cornerstone of systemic treatment; however, response to STZ-based chemotherapy may vary among individuals. In this narrative review, we aimed to identify the predictive factors of response to STZ in advanced Pan-NENs. We performed an extensive search in international online databases for published studies and ongoing clinical trials evaluating STZ in Pan-NENs. We found 11 pertinent studies evaluating 17 patient-, tumor-, or treatment-related factors. Age, CgA blood levels, tumor grade, Ki-67% index, anatomical location of the primary tumor, tumor stage, site of metastasis origin, liver tumor burden, extrahepatic spread, functional status, O6-methylguanine-methyltransferase (MGMT) status, line of therapy, and response to previous treatments were all statistically associated with radiological response and/or survival. The identified predictors may help clinicians make appropriate treatment decisions, in this way improving clinical outcomes in patients with advanced Pan-NENs.

Keywords: neuroendocrine pancreatic neoplasm; predictors of response; streptozotocin.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Predictors of response (ORR) to STZ in Pan-NENs. Abbreviations: CgA, Chromogranin A; DOX, doxorubicin; ORR, objective response rate; Pan-NENs, pancreatic neuroendocrine neoplasms; PS, performance status; STZ, Streptozotocin; 5-FU, 5-fluorouracil.

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