Genomic Health announces results from study on methods to detect bladder cancer Genomic Health announced positive results from a second, larger liquid biopsy feasibility study demonstrating the Company's ability to detect tumor-specific DNA in urine, which is expected to enable bladder cancer recurrence monitoring. It is estimated that early-stage bladder cancer recurs in only 10 to 15 percent of patients in the first year, and in more than half of patients over time. However, approximately one-third of all cystoscopies – a procedure using a thin instrument equipped with a camera and light to look at the inside of the bladder – generate false positive results. Genomic Health and its collaborators used the Company's next-generation sequencing and polymerase chain reaction based platforms and refined methodology to target tumor-specific differential DNA methylation and single nucleotide variations. In the study, researchers identified tumor-specific DNA markers in 94 percent of tissue samples and found a strong association between the same markers in urine. These findings are expected to enable accurate monitoring for cancer recurrence in the urine of early-stage bladder cancer patients.