Cystoscopic Evaluation Predicting pT0 Urothelial Carcinoma of the Bladder

Urothelial Carcinoma Clinical Trial

Official title: Assessment of Reliability of Cystoscopic Evaluation Predicting pT0 Urothelial Carcinoma of the Bladder at the Time of Radical Cystectomy

Status Active, not recruiting

Clinical Trial Summary

A prospective, investigational study to assess the accuracy of standardized cystoscopic evaluation with tissue sampling performed immediately prior to definitive radical cystectomy to predict pathologic tumor stage and identify patients who may benefit from bladder preservation therapy.

Clinical Trial Description

Archival specimen of prior diagnostic TUR will be prepared as 10-20 unstained 5-10 micron slides to under-go next generation sequencing and be compared to final cystectomy specimen to investigate potential pre-treatment signatures predictive of response to chemotherapy and to understand genomic evolution of primary tumors after chemotherapy. All patients will also have urine, PBMC, and serum/plasma collected at baseline, day of procedure, 4-6 weeks post-procedure, and 6 months post-procedure. The baseline samples will be collected prior to any chemotherapy administration and prior to the procedure.

On the day of the patient's radical cystectomy, standard rigid cystourethroscopy will be performed. A urine sample will be collected from the bladder. A plasma sample will be collected while the patient is under anesthesia or in pre-op holding area. Visible tumor and prior tumor sites will be targeted for tissue sampling (no more than two sites will be targeted). A standardized tumor quantification system will be employed to document location and presence of tumor and previous biopsy sites. To this end, the investigators have developed a novel scoring system that allows for objective quantification of endoscopic findings at the time of cystoscopy and indexes presence and location of papillary tumor, erythema, and scar. Two additional random biopsies will be obtained, one from the posterior wall and one from the lateral wall for assessment of genomic signatures within normal-appearing mucosa.

Tumor location and its relationship to the ureteral orifices will be noted in order to assist the surgeon in performance of radical cystectomy. The patient will then undergo radical cystectomy as per standard of care. ;

Related Conditions & MeSH terms

• Carcinoma
• Carcinoma, Transitional Cell
• Urinary Bladder Neoplasms
• Urothelial Carcinoma

• NCT number: NCT02968732
• Study type: Interventional
• Source: Fox Chase Cancer Center
• Status: Active, not recruiting
• Phase: N/A
• Start date: November 11, 2016
• Completion date: April 1, 2027