Observational Study to Assess Quality of Life in Patients with Pancreatic Neuroendocrine Tumors Receiving Treatment with Everolimus: The OBLIQUE Study (UK Phase IV Trial)

Neuroendocrinology. 2019;108(4):317-327. doi: 10.1159/000497330. Epub 2019 Jan 30.

Abstract

Background/aims: To assess health-related quality of life (HRQoL), treatment patterns, and clinical outcomes of adult (≥18 years) patients with advanced (unresectable or metastatic) pancreatic neuroendocrine neoplasms (PanNENs) treated with everolimus in routine clinical practice.

Methods: In a prospective, non-interventional, multi-center study patients administered at least one 10 mg dose of everolimus were evaluated for change in HRQoL (EORTC QLQ-C30 Global Health Status scale) from baseline after 6 months treatment (primary endpoint). Secondary endpoints included disease-specific HRQoL measures (EORTC QLQ-G.I.NET21), clinical outcomes, everolimus treatment patterns, and safety.

Results: Forty-eight patients were recruited (between August 2013 and March 2015); the median treatment duration was 27.8 months. EORTC QLQ-C30 Global Health score was not significantly different from baseline after 6 months of treatment (mean difference -1.9 points, p = 0.660, n = 30). In pairwise analyses, the only significant changes in HRQoL from baseline were for EORTC QLQ-C30 physical functioning score at month 3 (adjusted mean difference -8.8 points, p = 0.002, n = 36) and the EORTC QLQ-G.I.NET21 disease-related worries scores at months 1 and 2 (adjusted mean differences: -11.5 points [p = 0.001, n = 44] and -8.8 points [p = 0.017, n = 43], respectively). Disease progression or death was recorded in 44.4% (n = 20/45) patients during follow-up; median progression-free survival was 25.1 months and the cumulative survival rate at 3 years was 71%. No new safety signals were detected.

Conclusions: The OBLIQUE study demonstrates that HRQoL is maintained in patients with PanNENs during treatment with everolimus in a UK real-world setting. This study adds to the limited HRQoL data available in this patient group.

Keywords: Everolimus; Health-related quality of life; Pancreatic neuroendocrine tumours; Real-world study.

Publication types

  • Multicenter Study
  • Observational Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Antineoplastic Agents / adverse effects
  • Antineoplastic Agents / therapeutic use*
  • Disease Progression
  • Disease-Free Survival
  • Everolimus / adverse effects
  • Everolimus / therapeutic use*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Pancreatic Neoplasms / drug therapy*
  • Pancreatic Neoplasms / mortality*
  • Quality of Life
  • Surveys and Questionnaires
  • Survival Rate

Substances

  • Antineoplastic Agents
  • Everolimus