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Upfront resection versus no resection of the primary tumor in patients with synchronous mCRC –  Julius Center Research Program Cancer
Jun 12, 2024, 01:33

Upfront resection versus no resection of the primary tumor in patients with synchronous mCRC – Julius Center Research Program Cancer

Julius Center Research Program Cancer shared a post on LinkedIn:            .

“Upfront resection versus no resection of the primary tumor in patients with synchronous metastatic colorectal cancer.

Publication and method news flash

The aim of the phase 3 CAIRO4 study that randomized 206 patients since 2012 was to investigate whether the addition of upfront primary tumor resection (PTR) to systemic therapy resulted in a survival benefit in patients with synchronous metastatic colorectal cancer (mCRC) without severe symptoms of their primary tumor.

Using the Max-Combo test as the primary analysis method for comparing survival outcomes between treatment arms in the presence of anticipated non-proportional hazards, the median overall survival in the arm without upfront PTR was 18.3 months (95% CI 16.0-22.2) compared to 20.1 months (95% CI 17.0-25.1) in the upfront PTR arm (p = 0.32).

Upfront PTR added to palliative systemic therapy in patients with synchronous mCRC without severe symptoms of the primary tumor does not result in a survival benefit. This practice should no longer be considered standard of care.

Read the full article in Annals of Oncology.

Overall survival (primary endpoint of the study) per treatment arm in the intention-to-treat population. PTR = primary tumor resection

Source: Julius Center Research Program Cancer/LinkedIn