Real world rates of genetic referrals and germline testing in patients with prostate adenocarcinoma at an academic cancer center in southern New Jersey.

Authors

null

Christopher Ambrogi

Cooper University Hospital, Camden, NJ

Christopher Ambrogi , Sahaj Desai , Randi Zukas Carhart , Jenia Jenab-Wolcott , Julia Chia-Ying Shih

Organizations

Cooper University Hospital, Camden, NJ, MD Anderson Cancer Center at Cooper, Camden, NJ

Research Funding

No funding received
None.

Background: Prostate adenocarcinoma is the second leading cause of cancer-related death in men in the United States. A major risk factor is family history, with prostate cancer in a first-degree relative effectively doubling a patient’s risk. However, relying on family history alone fails to identify many patients with clinically relevant cancer-related germline mutations, which can have important prognostic and therapeutic implications for patients and their families. In 2018, the NCCN recommended expanding the germline testing to include all men with high risk, very high risk, regional or metastatic prostate cancer. We sought to identify the rate of genetic testing within this patient population at the MD Anderson Cancer Center at Cooper University Hospital. Methods: The institution database was queried to identify patients with the ICD-10 diagnosis of prostate adenocarcinoma between 01-2019 and 12-2020; the inclusion criteria were age 18 years or older, biopsy-proven prostate adenocarcinoma, and qualification to receive germline genetic testing per NCCN guidelines. A total of 201 patients were screened and 97 cases were analyzed. Results: Of the 97 patients who qualified for genetic testing, 53 were referred to genetics (54.6%). 27 of the 53 patients who met with our genetics team underwent testing (50.9%). Of the 27 patients tested, nine patients (33.3%) were found to have clinically relevant cancer-related germline mutations with therapeutic implications for the patient and/or screening recommendations for the patient and their family members. Conclusions: Overall, the proportion of patients who qualified for and completed genetic testing was low at 27.8%. Of those who completed testing, the rate of detection of a significant germline mutation was high at 33.3%, indicating that a significant proportion of those untested may carry a genetic mutation of clinical importance. Based on these results, we developed an electronic Best Practice Alert that notifies providers if a patient qualifies for a genetic risk evaluation based on his prostate cancer risk. We implemented this system, with reported high utilization demonstrating feasibility of this tool. Preliminary data shows improved rates of referral among prostate cancer patients.

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Abstract Details

Meeting

2023 ASCO Genitourinary Cancers Symposium

Session Type

Poster Session

Session Title

Poster Session B: Prostate Cancer and Urothelial Carcinoma

Track

Urothelial Carcinoma,Prostate Cancer - Advanced

Sub Track

Quality of Care/Quality Improvement and Real-World Evidence

Citation

J Clin Oncol 41, 2023 (suppl 6; abstr 114)

DOI

10.1200/JCO.2023.41.6_suppl.114

Abstract #

114

Poster Bd #

E3

Abstract Disclosures

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