Table 1. Study population demographic and clinical characteristics.
BRCA‐associated malignancies include breast, ovarian, prostate, and pancreatic cancer.
Patients with ≥2 first‐degree relatives with BRCA‐associated malignancies.
Abbreviations: AJCC, American Joint Committee on Cancer; ECC, extrahepatic cholangiocarcinoma; ICC, intrahepatic cholangiocarcinoma; PARPi, poly ADP ribose polymerase inhibitor.