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A randomised Phase II trial of carboplatin and gemcitabine ± vandetanib in first-line treatment of patients with advanced urothelial cell cancer not suitable to receive cisplatin

Jones, Robert; Crabb, Simon; Chester, John; Elliott, Tony; Huddart, Robert; Birtle, Alison; Evans, Linda; Lester, Jason; Jagdev, Satinder; Casbard, Angela; Huang, Chao; Madden, Tracie Ann; Griffiths, Gareth

Authors

Robert Jones

Simon Crabb

John Chester

Tony Elliott

Robert Huddart

Alison Birtle

Linda Evans

Jason Lester

Satinder Jagdev

Angela Casbard

Tracie Ann Madden

Gareth Griffiths



Abstract

Objectives
To assess the efficacy and tolerability of the dual epidermal growth factor receptor/vascular endothelial growth factor receptor inhibitor, vandetanib, in combination with carboplatin and gemcitabine in the first‐line treatment of patients with advanced transitional cell carcinoma urothelial cancer (UC) who were unsuitable for cisplatin.

Patients and methods
From 2011 to 2014, 82 patients were randomised from 16 hospitals across the UK into the TOUCAN double‐blind, placebo‐controlled randomised Phase II trial, receiving six 21‐day cycles of intravenous carboplatin (target area under the concentration versus time curve 4.5, day 1) and gemcitabine (1000 mg/m2 days 1 and 8) combined with either oral vandetanib 100 mg or placebo (once daily). Progression‐free survival (PFS; primary endpoint), adverse events, tolerability and feasibility of use, objective response rate and overall survival (OS) were evaluated. Intention‐to‐treat and per‐protocol analyses were used to analyse the primary endpoint.

Results
The 82 patients were randomised 1:1 to vandetanib (n = 40) or placebo (n = 42), and 25 patients (30%) completed six cycles of all allocated treatment. Toxicity Grade ≥3 was experienced in 80% (n = 32) and 76% (n = 32) of patients in the vandetanib and placebo arms, respectively. The median PFS was 6.8 and 8.8 months for the vandetanib and placebo arms, respectively (hazard ratio [HR] 1.07, 95% confidence interval [CI] 0.65–1.76; P = 0.71); the median OS was 10.8 vs 13.8 months (HR 1.41, 95% CI 0.79–2.52; P = 0.88); and radiological response rates were 50% and 55%.

Conclusion
There is no evidence that vandetanib improves clinical outcome in this setting. Our present data do not support its adoption as the regimen of choice for first‐line treatment in patients with UC who were unfit for cisplatin.

Citation

Jones, R., Crabb, S., Chester, J., Elliott, T., Huddart, R., Birtle, A., …Griffiths, G. (2020). A randomised Phase II trial of carboplatin and gemcitabine ± vandetanib in first-line treatment of patients with advanced urothelial cell cancer not suitable to receive cisplatin. BJU international, 126(2), 292-299. https://doi.org/10.1111/bju.15096

Journal Article Type Article
Acceptance Date Mar 2, 2020
Online Publication Date May 19, 2020
Publication Date 2020-08
Deposit Date Jun 18, 2020
Publicly Available Date Jun 18, 2020
Journal BJU International
Print ISSN 1464-4096
Electronic ISSN 1464-410X
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 126
Issue 2
Pages 292-299
DOI https://doi.org/10.1111/bju.15096
Keywords Carboplatin; Gemcitabine; Randomised controlled trial; Tyrosine kinase inhibitor; Urothelial carcinoma; Vandetanib
Public URL https://hull-repository.worktribe.com/output/3515812
Publisher URL https://bjui-journals.onlinelibrary.wiley.com/doi/full/10.1111/bju.15096

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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/

Copyright Statement
© 2020 The Authors. BJU International Published by John Wiley & Sons Ltd on behalf of BJU International

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.





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