Dramatic changes in the use of radiotherapy for cancer were seen during the first wave of the COVID-19 pandemic in England. Some radiotherapy regimens were shortened, but others were intensified, suggesting that they were being used as a replacement for surgery.
The findings come from an analysis of National Health Service data in England, which also indicated that overall there was a reduction in the amount of radiotherapy delivered.
“Radiotherapy is a very important treatment option for cancer, and our study shows that, across the English NHS, there was a rapid shift in how radiotherapy was used,” said lead author Katie Spencer, PhD, faculty of medicine and health, University of Leeds (England).
“It is impressive to see that the data closely follow the guidelines published at the start of the pandemic,” she said. For instance, for patients with breast and colorectal cancers, treatment regimens were shorter and more intensive, whereas for patients with prostate cancer, treatments were delayed to reduce exposure to COVID-19.
“In other cases, such as head and neck cancers and anal cancers, we saw that the number of radiotherapy treatments hardly changed during the first wave. This was really reassuring, as we know that it is vital that these treatments are not delayed,” Dr. Spencer added.
The study was published online in The Lancet Oncology on Jan. 22 (doi: 10.1016/S1470-2045[20]30743-9).
Researchers examined data from the National Radiotherapy Dataset on all radiotherapy delivered for cancer in the NHS in England between Feb. 4, 2019, and June 28, 2020.
On interrupted time-series analysis, the introduction of lockdown in response to the COVID-19 pandemic was associated with a significant reduction in both radiotherapy courses and attendances (P < .0001).
Overall, the team estimated that there were 3,263 fewer radiotherapy treatment courses and 119,050 fewer attendances than would have taken place had the pandemic not occurred.
The largest reduction in treatment courses was seen for prostate cancer, with a 77% reduction in April 2020 in comparison with April 2019, and in nonmelanoma skin cancer, for which there was a decrease of 72.4% over the same period.
There were, however, marked increases in the number of radiotherapy courses given for some disorders in April 2020 in comparison with April 2019. Radiotherapy for bladder cancer increased by 64.2%; for esophageal cancer, it increased by 41.2%; and for rectal cancer, it increased by 36.3%.
This likely reflects the fact that, during the pandemic, “surgical capacity dropped dramatically,” Dr. Spencer said in an interview.
“To try to mitigate the consequences of that, working with their multidisciplinary teams, doctors increased the use of radiotherapy to provide a timely alternative curative treatment and help mitigate the consequences of not having access to surgery,” she said.
“This is a cohort of patients who would otherwise have had their treatment delayed, and we know that’s detrimental, so having an alternative strategy that, in specific cases, can offer similar outcomes is fantastic,” she added.
The analysis shows the “incredible speed with which radiotherapy services within the NHS were able to adapt their treatment patterns to help protect patients with cancer whilst coping with reduced surgical capacity due to the global pandemic,” coauthor Tom Roques, MD, medical director of professional practice for clinical oncology at the Royal College of Radiologists, commented in a statement.