Among 16 patients with confirmed recurrence, ctDNA accurately identified recurrence in 15 patients. Dr. Pant offered insights on the key findings of zanidatamab's efficacy and safety in HER2-positive BTC. Results of NIR-B trial sheds light on the clinical utility of niraparib in patients with BRCA-mutated GI cancers. Dr. Finn previews key abstracts in liver cancer and other hepatobiliary malignancies from ASCO GI 2025. Dr. Pant describes the improved DOR and median OS seen with the treatment, and discusses the ongoing phase 3 trial. Adding a taxane to the standard regimen of gemcitabine/cisplatin does not improve OS in patients with newly diagnosed BTC. The GAP system was found to predict actionable genetic alterations including FGFR2 and IDH. HERIZON-BTC-01 marks the largest phase IIb clinical trial to date for patients with previously treated HER2-positive disease. In several different types of cancer, tumor budding is linked to poor survival outcomes. Dr. Weinberg provides a recap of all of the GI oncology data of practice-changing potential presented at ESMO 2024. While biliary tract cancer is one of the fastest-growing types of early-onset cancers, little is known about its biology. Patients with chemotherapy-responsive disease typically undergo observation after 6 months of gemcitabine-based therapy. Adding nanoliposomal irinotecan to fluorouracil plus leucovorin did not improve PFS or OS in cholangiocarcinoma. Participants received pemigatinib 13.5 mg once per day for 21-day cycles with 2 weeks on and 1 week off. The study's primary end point was overall survival. As gem/cis is linked to low survival times, various trials have attempted to improve first-line therapy outcomes for CCA. Drs. Ebben and Uboha break down the importance of the QUIC study, a phase 2 investigation of first-line treatment of BTC. Richard Finn, MD, of University of California, Los Angeles, highlights 3-year follow-up data from KEYNOTE-966. Treatment-related adverse events were mostly sitravatinib related and included hand-foot syndrome and hypertension. A study investigated atezolizumab with varlilumab, an anti-CD27 human antibody, with or without cobimetinib, a MEK inhibitor.