Application of Hereditary Renal Cell Carcinoma Risk Criteria to a Large Prospective Database

Area of Science:

• Oncology
• Genetics
• Epidemiology

Background:

• Hereditary renal cell carcinoma (RCC) accounts for a significant proportion of kidney cancer cases.
• Identifying at-risk individuals is crucial for genetic counseling and early detection.

Purpose of the Study:

• To assess the clinical utility of the Canadian criteria for identifying patients at risk of hereditary renal cell carcinoma (RCC).
• To evaluate the proportion of patients meeting hereditary RCC risk criteria in a prospective cohort.

Main Methods:

• The Canadian hereditary RCC risk criteria were applied to 8388 patients in the Canadian Kidney Cancer information system (CKCis) database.
• The primary endpoint was the proportion of patients meeting at least one risk criterion for genetic testing.

Main Results:

• 2827 patients (35%) met at least one criterion for genetic testing.
• Non-clear cell histology (59%) and age ≤45 years (28%) were the most common criteria met.
• Only 61 patients underwent genetic testing, with 20 (35% of those tested) found to have a germline mutation.

Conclusions:

• The Canadian criteria identified a substantial proportion (35%) of patients as potentially at-risk for hereditary RCC.
• Low rates of genetic testing among at-risk patients hinder the determination of the criteria's sensitivity and specificity.
• Barriers in reporting, knowledge, or access to genetic testing may exist, impacting the clinical impact of these criteria.