Abstract
Streptozocin (STZ)-based chemotherapy has been used for over 40 years in the treatment for neuroendocrine tumours (NETs); however, there have been few randomized trials, and STZ remains unlicensed in many countries. With the recent approval of sunitinib and everolimus for pancreatic NETs (PNETs), and the emergence of a more stratified approach to cancer therapy, it is timely to re-evaluate the role of STZ for NETs. Here, we review the evidence base for STZ-based chemotherapy, the toxicity associated with treatment and the position of STZ in the current therapeutic algorithm. Although there are no trials comparing chemotherapy with best supportive care, there is evidence that multi-agent STZ-containing regimens are associated with improved survival compared with control therapy. Additionally, in PNETs, chemotherapy appears to be associated with higher response rates compared with targeted therapies and this may be important in those who are symptomatic from tumour burden and those with locally advanced disease who may be down-staged for resection. The role of Ki67 and other predictive markers requires further assessment in prospective studies as does the relative efficacy of alternative agents such as temozolomide (TMZ).
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Khalique, S., Meyer, T. (2014). Streptozocin-Based Chemotherapy: Still a Standard of Care for Neuroendocrine Tumours?. In: Raymond, E., Faivre, S., Ruszniewski, P. (eds) Management of Neuroendocrine Tumors of the Pancreas and Digestive Tract. Springer, Paris. https://doi.org/10.1007/978-2-8178-0430-9_5
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DOI: https://doi.org/10.1007/978-2-8178-0430-9_5
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