Elena Elimova, MD, on HER2-Positive Gastroesophageal Cancer: Zanidatamab Plus Chemotherapy
2026 ASCO GI
Elena Elimova, MD, of Princess Margaret Cancer Centre, presents findings from the primary analysis of the phase III HERIZON-GEA-01 trial, which evaluated zanidatamab, a dual HER2-targeted bispecific antibody, plus chemotherapy with or without the PD-1 inhibitor tislelizumab vs trastuzumab plus chemotherapy as first line-regimens for HER2-positive locally advanced, unresectable, or metastatic gastroesophageal adenocarcinoma (Abstract LBA285).
The ASCO Post Staff
Samuel J. Klempner, MD, of Massachusetts General Hospital, discusses results from the phase II ILUSTRO trial, which evaluated the combination of the anti-CLDN18.2 antibody zolbetuximab plus mFOLFOX6 and nivolumab in patients with CLDN18.2-positive; HER2-negative; locally advanced, unresectable, or metastatic gastric/gastroesophageal junction (GEJ) adenocarcinoma (Abstract LBA284).
The ASCO Post Staff
Elizabeth Smyth, MD, of the Oxford NIHR Biomedical Research Centre, Churchill Hospital, presents findings from an analysis of the MATTERHORN trial, a phase III study that examined fluorouracil, leucovorin, oxaliplatin, and docetaxel (FLOT) plus durvalumab in patients with resectable gastric/gastroesophageal junction cancer. Dr. Smyth discusses rates of FLOT discontinuation along with event-free survival based on FLOT completion status in the trial (Abstract 343).
The ASCO Post Staff
Ghassan K. Abou-Alfa, MD, of Memorial Sloan Kettering Cancer Center, reviews the goals of the upcoming phase III ARTEMIDE-HCC01 trial, which will examine the efficacy and safety of rilvegostomig (a novel bispecific anti–PD-1/anti-TIGIT antibody) plus bevacizumab with or without tremelimumab as first-line treatment for unresectable hepatocellular carcinoma (Abstract TPS612).
The ASCO Post Staff
Ghassan K. Abou-Alfa, MD, of Memorial Sloan Kettering Cancer Center, outlines an assessment of baseline characteristics and safety outcomes in HIMALAYA trial participants who were rechallenged with tremelimumab after being treated with the STRIDE regimen (single dose of tremelimumab plus regular-interval durvalumab) (Abstract 541).
