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Impact of clinicopathological features on immune-based combinations for advanced urothelial carcinoma: a meta-analysis.

Aims: Immune checkpoint inhibitors (ICIs) have recently revolutionized the treatment landscape of metastatic urothelial carcinoma. The authors performed a meta-analysis aiming to evaluate the predictive value of Eastern Cooperative Oncology Group performance status, age, sex, liver metastasis and histology in trials comparing first-line ICI-based combinations with chemotherapy in metastatic urothelial carcinoma patients. Methods: Hazard ratios were analyzed. Results: ICI-based combinations significantly decreased the risk of death in several clinicopathological subgroups, including patients with no liver metastases (hazard ratio: 0.84; 95% CI: 0.74-0.95) and those with an Eastern Cooperative Oncology Group performance status of 0 (hazard ratio: 0.84; 95% CI: 0.72-0.97). Conclusion: The benefit of ICI-based combinations over chemotherapy in metastatic urothelial carcinoma was consistent across several clinicopathological subgroups, although a proportion of patients responded to chemotherapy alone.