Lurbinectedin in patients with pretreated neuroendocrine tumours: Results from a phase II basket study

Federico Longo-Muñoz, Daniel Castellano, Jerome Alexandre, Sant P. Chawla, Cristian Fernández, Carmen Kahatt, Vicente Alfaro, Mariano Siguero, Ali Zeaiter, Victor Moreno, Enrique Sanz-García, Ahmad Awada, Ana Santaballa, Vivek Subbiah

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Background: Patients with neuroendocrine tumours (NETs) need alternative therapies after failure of first-line therapy. Patients and methods: This phase II trial evaluated lurbinectedin, a selective inhibitor of oncogenic transcription, at 3.2 mg/m2 as a 1-h intravenous infusion every 3 weeks in 32 NETs patients treated in the second- or third-line setting. The primary efficacy endpoint was overall response rate (ORR) according to RECIST v1.1 assessed by the investigators. Secondary endpoints included duration of response (DoR), progression-free survival (PFS), overall survival (OS) and safety. Results: Two of 31 evaluable patients had confirmed partial responses (ORR = 6.5%; 95%CI, 0.8–21.4%). Median DoR was 4.7 months (95% CI, 4.0–5.4 months), median PFS was 1.4 months (95% CI, 1.2–3.0 months) and median OS was 7.4 months (95% CI, 3.4–16.2 months). Lurbinectedin showed an acceptable, predictable and manageable safety profile. The most common grade 3/4 toxicity was neutropenia (40.6%; grade 4, 12.4%; febrile neutropenia, 3.1%). Conclusions: Considering the exploratory aim of this trial that evaluated a heterogeneous population of NETs patients, and the signs of antitumour activity observed (two confirmed partial responses and seven long disease stabilisations), further development of lurbinectedin is warranted in a more selected NETs population. Trial registration number: Sponsor Study Code: PM1183-B-005-14. EudraCT number: 2014-003773-42. ClinicalTrials.gov reference: NCT02454972.

Original languageEnglish (US)
Pages (from-to)340-348
Number of pages9
JournalEuropean Journal of Cancer
Volume172
DOIs
StatePublished - Sep 2022

Keywords

  • Lurbinectedin
  • Neuroendocrine tumours
  • Phase II trial
  • Small cell

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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