Everolimus in Combination with Octreotide Long-Acting Repeatable in a First-Line Setting for Patients with Neuroendocrine Tumors: A 5-Year Update

Emilio Bajetta, Laura Catena, Sara Pusceddu, Francesca Spada, Claudio Iannacone, Italo Sarno, Giandomenico Di Menna, Lorenzo Dottorini, Anna Maria Marte

Research output: Contribution to journalArticle

Abstract

BACKGROUND: We previously presented data of this multicentric, phase II study showing that everolimus plus octreotide long-acting repeatable (LAR) for advanced neuroendocrine neoplasms (NENs), in the first line setting, is an active and safe treatment. We now present updated data at 5 years.

METHODS: Patients with advanced well-differentiated, previously untreated neuroendocrine tumors of the gastroenteropancreatic tract and of the lung received octreotide LAR 30 mg plus everolimus 10 mg/day. The primary endpoint was the objective response rate (ORR). We performed an analysis of "long responder" patients and of time to progression (TTP) and overall survival (OS) at 5 years.

RESULTS: Fifty patients were enrolled; the primary tumor site was: pancreas (14 patients), lung (11 patients), ileum (9 patients), jejunum/duodenum (2 patients), and unknown (14 patients). Seventeen (34%) of these patients have received treatment for more than 2 years. The median exposure to study drugs was 519.5 days (range 48-2,024). Currently 3 patients are still in treatment. The ORR (partial response + complete response) was 18% (95% confidence interval [CI] 7.4-28.6): complete response 1 patient (2%), partial response 8 patients (16%), stable disease 37 patients (74%). The median TTP was 33.6 months (95% CI 18.7-41.2) and the median OS was 61.0 months (95% CI 49.8-not reached).

CONCLUSION: In this update of clinical outcome at 5-year follow-up, everolimus plus octreotide has been shown to be active in advanced NENs. The current analysis showed a further prolongation of TTP and a long exposure to the study drug without major side effects in the long term.

Original languageEnglish
Pages (from-to)307-311
Number of pages5
JournalNeuroendocrinology
Volume106
Issue number4
DOIs
Publication statusPublished - 2018

Keywords

  • Adult
  • Aged
  • Antineoplastic Combined Chemotherapy Protocols/therapeutic use
  • Delayed-Action Preparations
  • Disease-Free Survival
  • Everolimus/administration & dosage
  • Female
  • Humans
  • Kaplan-Meier Estimate
  • Male
  • Middle Aged
  • Neuroendocrine Tumors/drug therapy
  • Octreotide/administration & dosage
  • Treatment Outcome

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