Abstract P6-02-03: Breast Health Assessment: A family health history tool using the electronic health record and clinical decision support to facilitate guidelines-driven hereditary breast cancer genetic testing at the time of screening mammogram

Abstract

Abstract Background: Genetic testing (GT) is recommended for women who have a personal or family history of breast cancer and are at increased risk of carrying an inherited breast cancer risk gene pathogenic variant (PV) as defined by the National Comprehensive Cancer Network (NCCN) guidelines. Data shows that traditional GT workflows do not reach a large proportion of women eligible for GT. NorthShore University HealthSystem previously implemented the Genetic Wellness Assessment, a family health history (FHH) screening tool utilizing the electronic health record (EHR) and clinical decision support, to identify individual and familial risks to health conditions and personalize screening and prevention practices in primary care. To increase access to hereditary breast cancer GT, we implemented a similar FHH screening tool called the Breast Health Assessment (BHA) for patients completing routine screening mammogram. We describe uptake and results from implementation of the BHA in conjunction with routine screening mammogram. Methods: Patients scheduled for screening mammogram were assigned the BHA prior to their mammogram via the EHR portal. BHA questions addressed personal and family history of breast cancer and other cancer types associated with hereditary breast cancer syndromes. Upon completion of the BHA, patients who screened positive, i.e. identified as having a high-risk personal or family cancer history based on NCCN guidelines, were offered a comprehensive hereditary cancer panel (HCP). HCP included 38 genes associated with common cancer types, including all high and moderate risk breast cancer genes for which there are NCCN management guidelines. Individuals who were not identified as high-risk were offered a genetic health screen, which consisted of 148 genes associated with common cancer types, genetic forms of heart disease, medication response, and other health conditions. Saliva sample collection for GT occurred at the time of the patient’s screening mammogram appointment. Results: From August 2021 through May 2022, 32,438 patients were assigned the BHA prior to screening mammogram. Of these patients, 14,128/32,438 (44%) completed the BHA questionnaire. Based on BHA reponse, 3,490/14,128 (25%) screened positive and met NCCN criteria for GT for hereditary breast cancer risk genes and 529/3,490 (15%) completed GT. Additionally, 713/10,638 (7%) patients who screened negative on the BHA completed testing. In total, 1,242/14,128 patients (9%) completed GT and 78/1,242 (6%) were found to carry an inherited PV in a cancer risk gene, 35 of which were in an NCCN guidelines breast cancer risk gene. Of the 78 patients with a positive GT result, 57/78 (73%) had not been previously recommended for a genetics evaluation and/or received a genetics referral. Conclusion: The BHA is a novel FHH tool which increases access to hereditary breast cancer GT at the time of screening mammogram. Nearly half of women who completed screening mammogram completed the BHA and learned valuable information about their breast cancer risk and were invited to complete GT. Genetic testing completed through the BHA identified 78 patients with an actionable inherited PV in a cancer risk gene. This invaluable information will lead to potentially lifesaving personalized cancer screening and risk reduction and help identify additional at risk family members. Notably, 73% of patients who carried an inherited PV had not been previously recommended by their medical teams for genetic counseling and/or testing. The BHA has the potential to help close the care gap in GT for women at increased risk of breast cancer. Citation Format: Allison DePersia, Sarah Choi, Katharine Yao, Henry Dunnenberger, Peter Hulick. Breast Health Assessment: A family health history tool using the electronic health record and clinical decision support to facilitate guidelines-driven hereditary breast cancer genetic testing at the time of screening mammogram [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P6-02-03.