01/07/2026
Cancer cells can reawaken after a period of dormancy - results from the SURMOUNT trial may help.
Many cancers are known to recur in the years following an initial treatment, some at much higher rates.
A clinical trial called SURMOUNT would monitor patients for sleeping cancer cells, which many researchers now think might explain at least some cancer recurrence. These dormant tumour cells evade initial treatment and move to other parts of the body. Instead of multiplying to form tumours right away — as is typical for metastatic cancer, in which cells spread from the main tumour — the dormant cells remain asleep. They are hidden from the immune system and not actively dividing. But later, they can reawaken and give rise to tumours.
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Researchers are targeting dormant tumour cells that might explain why some cancers reappear long after successful treatment.