Resero Bio Urine Test Predicts Bladder Cancer Treatment Response
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San Carlos, Calif. – October 05, 2026 -- A non-invasive urine test can now predict whether bladder cancer patients will respond to immunotherapy before treatment even begins, according to a Stanford-led study published in Nature Medicine and announced by Resero Bio.
Study analyzed 683 urine samples to validate cell-free RNA platform
Researchers from Stanford Cancer Institute and the VA Palo Alto Health Care System used uRARE-seq, Resero Bio's proprietary targeted cfRNA sequencing method, to analyze 683 urine samples from bladder cancer patients and controls. The platform distinguished low-grade from high-grade tumors and non-muscle invasive from muscle-invasive disease, determinations that currently require tissue biopsy or surgical resection.