Michael K. Gibson, MD, PhD, on Esophageal Cancer: Expert Commentary on Two Key Studies
2024 ASCO GI Cancers Symposium
Michael K. Gibson, MD, PhD, of Vanderbilt University Medical Center, discusses phase III findings on chemotherapy plus camrelizumab in the ESCORT-NEO trial of patients with resectable esophageal squamous cell carcinoma; and phase III SKYSCRAPER-08 results on first-line tiragolumab plus atezolizumab and chemotherapy in the same patient population (Abstracts LBA244 and 245).
The ASCO Post Staff
Jennifer Yon-Li Wo, MD, of Massachusetts General Hospital, discusses the local failure rate of non-ablative hypofractionated radiation therapy in combination with the immune checkpoint inhibitors ipilimumab and nivolumab compared to ablative SBRT to treat metastatic microsatellite-stable colorectal and pancreatic cancers as a secondary analysis of four prospective trials. Dr. Wo and her team found that, despite using nearly half the radiation dose in those who received immunotherapy, there was no significant difference in local failure rates (Abstract 752).
The ASCO Post Staff
Van K. Morris, MD, of The University of Texas MD Anderson Cancer Center, discusses phase II results on using circulating tumor DNA (ctDNA) as a predictive biomarker of adjuvant chemotherapy in patients with stage II colon cancer. During the trial, no improvement in ctDNA clearance was observed after 6 months of chemotherapy following resection of disease. Dr. Morris notes that future trials should account for evolving assay performance in patients with colorectal cancer (Abstract 5).
The ASCO Post Staff
Anant Ramaswamy, DM, of Tata Memorial Centre, discusses phase III results of a study that added docetaxel to a doublet regimen of fluorouracil or capecitabine and oxaliplatin, which did not improve overall survival in patients with advanced gastroesophageal junction and gastric cancers. Continuing chemotherapy beyond 6 months also did not appear to improve survival in this population (Abstract LBA248).
The ASCO Post Staff
Ken Kato, MD, PhD, of Japan’s National Cancer Center Hospital, discusses the first comprehensive findings on biomarkers from the CheckMate 648 study. These results further corroborate the clinical efficacy of nivolumab plus chemotherapy and nivolumab plus ipilimumab in the first-line treatment of advanced esophageal squamous cell carcinoma. According to Dr. Kato, the data suggest an overall survival benefit across multiple biomarker subgroups (Abstract 252).
The ASCO Post Staff
Frank Kullmann, MD, of Germany’s Klinikum Weiden, discusses results from the ALPACA trial, which suggest a dose-reduced regimen with alternating cycles of gemcitabine/nab-paclitaxel and gemcitabine monotherapy after three induction cycles of standard gemcitabine/nab-paclitaxel is feasible and associated with an overall survival comparable to that with standard treatment, as well as improved tolerability (Abstract 605).
