Original Investigation

Reappraisal of Cisplatin vs Carboplatin Treatment for Solid Tumors

JAMA Network Open 10.1001/jamanetworkopen.2026.34287

September 17, 2026 at 11:00 AM EDT

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In this umbrella meta-analysis comparing cisplatin- and carboplatin-based chemotherapy, the findings clarified the certainty of evidence regarding their comparative efficacy and safety. High-certainty findings were confined to urothelial and ovarian cancers. For most other tumor types, particularly for survival outcomes, estimates suggested no meaningful differences, with moderate to low certainty, highlighting important gaps in high-level evidence.

Corresponding Author: Pablo Jiménez-Labaig, MD, Head and Neck Unit, The Royal Marsden NHS Foundation Trust, 203 Fulham Rd, SW3 6JJ London, United Kingdom (pablojimenez.pjl@gmail.com).

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