Inclusion criteria, exclusion criteria and study summary
AURORA is a single arm,open label,multicentre,phase II clinical trial of atezolizumab immunotherapy,in immunotherapy naive patients with urinary tract squamous cell carcinoma (UTSCC). Recruitment is intended to occur over approximately 2 years and will follow a two-stage statistical design (see section 7). However,the intention is to allow continuous recruitment between Stage 1 and Stage 2. Following a Screening Phase of up to 28 days,eligible patients will be registered and will then commence atezolizumab immunotherapy,every 28 days,within a Treatment Phase of up to 1 year. On treatment discontinuation,patients will be reviewed in an End of Treatment Visit,and then 12 weekly (timed such as to continue with the 12 weekly schedule of CT scans from the Treatment Phase) until disease progression. Following disease progression,patients will revert to routine local follow up processes. Consent will be obtained for long term collection of overall survival status.