Validation of a Urine-based Assay With Genomic Markers for Predicting Recurrence for Non-muscle Invasive Bladder Cancer

Inclusion Criteria: * Patients with a prior diagnosis of non-muscle invasive, ≤T1, urothelial cell carcinoma of the bladder scheduled to undergo surveillance cystoscopy. Exclusion Criteria: * Patients younger than 18 years * Patients with a diagnosis of small cell carcinoma, adenocarcinoma or squamous cell carcinoma of the bladder * Patients who have had a cystectomy or prior diagnosis of muscle invasive disease (T2 or greater) * Patients who are unable or unwilling to give informed consent