Metronomic and metronomic-like therapies in neuroendocrine tumors – Rationale and clinical perspectives

Ioana Lambrescu, Simona Fica, Diana Martins, Francesca Spada, Chiara Cella, Emilio Bertani, Manila Rubino, Bianca Gibelli, Chiara Grana, Guido Bonomo, Luigi Funicelli, Davide Ravizza, Eleonora Pisa, Dario Zerini, Antonio Ungaro, Nicola Fazio, IEO ENETS Center of Excellence for GEP NET

Research output: Contribution to journalReview article

Abstract

Metronomic therapy is characterized by the administration of regular low doses of certain drugs with very low toxicity. There have been numerous debates over the empirical approach of this regimen, but fewest side effects are always something to consider in order to improve patients′ quality of life. Neuroendocrine tumors (NETs) are rare malignancies relatively slow-growing; therefore their treatment is often chronic, involving several different therapies for tumor growth control. Knowing that these tumors are highly vascularized, the anti-angiogenic aspect is highly regarded as something to be targeted in all patients harboring NETs. Additionally the metronomic schedule has proved to be effective on an immunological level, rendering this approach as a multi-targeted therapy. Rationalizing that advanced NETs are in many cases a chronic disease, with which patients can live for as long as possible, a systemic therapy with regular low doses and a very low toxicity is in many cases a judicious manner of pursuing stabilization. Metronomic schedule is usually correlated with chemotherapy in oncology, but other therapies, such as radiotherapy and biotherapy can be delivered in a metronomic like manner. This review describes clinical trials and case series involving metronomic therapies alone or in combination in patients with advanced NETs. Nowadays level of evidence about metronomic therapy in NETs is quite low, therefore future prospective clinical studies are needed to validate the metronomic approach in specific clinical settings.

Original languageEnglish
Pages (from-to)46-56
Number of pages11
JournalCancer Treatment Reviews
Volume55
DOIs
Publication statusPublished - Apr 1 2017

Keywords

  • Anti-angiogenic
  • Low dose
  • Metronomic chemotherapy
  • Metronomic therapy
  • NET
  • Neuroendocrine tumors

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging

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