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Immunotherapy has changed how doctors treat advanced kidney cancer (renal cell carcinoma). These medicines help the immune system recognize and attack cancer cells. But sometimes patients must stop treatment because of strong side effects.
A large international study looked at more than 1,000 patients with advanced kidney cancer treated with modern immunotherapy combinations.
Researchers wanted to know what happens when patients stop immunotherapy because of serious side effects.
About 185 patients stopped treatment early due to toxicity, while most continued therapy. The encouraging news is that overall survival was similar between patients who stopped treatment and those who continued.
However, timing mattered. Patients who stopped treatment within the first three months tended to have worse outcomes than those who stopped later. This suggests that receiving immunotherapy for at least several months may be important for its full benefit.
These findings are reassuring for patients who experience serious side effects. If treatment must be stopped, it does not necessarily mean the therapy has failed. Doctors can still manage the disease using other treatments or monitoring strategies.
The study highlights the importance of balancing treatment effectiveness with safety and quality of life when using immunotherapy.
Where to get help
This page summarises a research study. Whether it applies to you depends on your stage, your reports and your overall health. Bring it to your consultation and ask what it means in your case.
Dr Swati Shah, MS, DrNB (Surgical Oncology), is a uro-oncologist — a surgeon for cancers of the kidney, bladder, prostate, testis and penis. She performs robotic partial nephrectomy (removing only the tumour) and radical nephrectomy at Apollo Hospital, Bhat, Gandhinagar. Her OPD is in Gota, Ahmedabad.
Please note: kidney stones, an enlarged prostate (BPH) and urine infections are not cancer — a urologist is the right doctor for those. Dr Swati Shah treats urological cancers only.
Read more: Uro-oncologist in Ahmedabad — Dr Swati Shah · Kidney cancer surgery in Ahmedabad · हिंदी में पढ़ें
OPD: Shah’s Gastro, Cancer & Robotic Surgery Centre, SF-203, Second Floor, Olive Greens, Gota, S G Highway, Ahmedabad 382481. Surgery: Apollo Hospital, Bhat, Gandhinagar. Bring all your reports. Second opinions are welcome.
Last updated: 4 October 2026
DOI: 10.1002/ijc.70228
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