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Clinical Trial Summary

Urothelial carcinomas of the lower and upper urinary tract can be considered "twin diseases". Much of the current clinical decision-making surrounding Upper Tract Urothelial Carcinoma (UTUC) is extrapolated from evidence that is based on urothelial carcinoma of bladder patients. The inner wall of the bladder is coated with a substance called glycosaminoglycan (GAG). GAG is known to form a gel-like layer on the apical cell membrane and act as a barrier against urine and pathogens in the lower urinary tract. Currently no published research on the presence of a GAG layer in the upper urinary tract exists. However, literature suggests that the ureteral utothelium can be transduced without enhancers, and the ureteral urothelium may be intrinsically different from bladder, both by the presence or absence of a GAG-layer, by different composition/thickness of the GAG-layer. Any functional differences between the urothelial layers in the bladder and in the upper urinary tract may affect the adeno-virus transduction, which again will have potential impact on future treatment of UTUC patients with a current unmet medical need.


Clinical Trial Description

This study will include patients either undergoing radical nephrectomy or radical cystectomy. After organ removal during surgery a biopsi (1x1 cm) will be collected from the ureter and the renal pelvis or from the ureter and the bladder (depending on type of surgery). These biopsies will be examined and compared, using molecular biotechniques, for the presence of glykosamino glykan (GAG) layer. There is no project related follow up for patients included, other than what is standard post-operative regime in the department. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05400291
Study type Observational
Source Aarhus University Hospital
Contact
Status Completed
Phase
Start date December 1, 2021
Completion date December 31, 2022

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