The UK Coronavirus Cancer Monitoring Project of 23 June identifies that the total number of those in the UK with cancer and Covid-19 stands at 1820. There is some interesting detail here.
They report that there is no evidence that cancer patients on cytotoxic chemotherapy or other anticancer treatment are at an increased risk of mortality from COVID-19 disease compared with those not on active treatment. They note that mortality from COVID-19 in cancer patients appears to be principally driven by age, gender, and comorbidities.
The UK Coronavirus Cancer Monitoring Project team, The UK Coronavirus Cancer Monitoring Project:
protecting patients with cancer in the era of COVID-19. THE LANCET Oncology 2020, 21(5):622–624.