Abstract 2262
Background
In the UK renal cancer has an incidence of around 12600 cases per year. Nivolumab is an anti-PD1 checkpoint inhibitor, which was approved in the UK for second or subsequent line treatment of advanced renal cancer in 2016. The aim of this study was to evaluate a regional experience of nivolumab use in this setting.
Methods
A retrospective analysis was undertaken of patients who commenced nivolumab as monotherapy for advanced renal cancer at three Cancer Centres in South Central England between February 2016 and April 2019. Information was collated from electronic patient records and e-prescribing systems. Information was gathered on patient demographics, Heng (IMDC) prognostic scores, previous treatments, treatment toxicity, use of steroids and radiotherapy during treatment, physician assessment of response and survival data.
Results
109 eligible patients were identified. The average age was 59 with 72.5% of patients male. 67.9% (74/109) of patients had prior nephrectomy and 50.5% (55/109) had metastatic disease at diagnosis. 82.6% (90/109) had pure clear cell histology. 63.3% (69/109) received nivolumab as second-line treatment, 27.5% (30/109) as third-line treatment and 9.2% (10/109) as fourth-line and beyond. At the start of treatment 19.41% (19/103) had a ‘favourable’ risk Heng score, 61.2% (64/103) had an ‘intermediate’ risk and 18.3% (19/103) had a ‘poor’ risk. The number of Nivolumab cycles received ranged from 1-69, with a mean of 11 and median of 5. 45.9% of patients experienced toxicity of any grade, with 16.5% experiencing grade 3/4 toxicity. 24.8% (28/109) received radiotherapy and 40.4% (44/109) received steroids during nivolumab treatment. At response assessment 31.5% showed a response to nivolumab, 9.3% had stable disease and 59.3% had disease progression. From the start of nivolumab treatment median progression-free survival was 5.4 months, and the 12-month overall survival rate was 56.88%. 22.6% (24/109) are still receiving nivolumab.
Conclusions
This review has given us important real-world data on the safety and efficacy of nivolumab which reflects the findings of the pivotal phase 3 trials that led to it’s use. Further analysis will allow us to see the effect of different factors on these outcomes.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
The authors.
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.
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