Pembrolizumab and Chemoradiotherapy for the Treatment of Unresectable Gastroesophageal Cancer

This phase I trial investigates how well pembrolizumab and chemoradiotherapy works in treating patients with gastroesophageal cancer that cannot be removed by surgery (unresectable). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs, such as fluorouracil, oxaliplatin and docetaxel work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Radiation therapy uses high energy photons to kill tumor cells and shrink tumors. Giving pembrolizumab together with chemoradiotherapy may help to control gastroesophageal cancer.

NCT Number	NCT04522336
Lead Sponsor	M.D. Anderson Cancer Center Collaborators: National Cancer Institute (NCI)
Conditions	Clinical Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage IV Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage IVA Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage IVB Gastroesophageal Junction Adenocarcinoma AJCC v8, Localized Gastroesophageal Junction Adenocarcinoma, Locally Advanced Gastroesophageal Junction Adenocarcinoma, Pathologic Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage IIIA Gastroesophageal Junction Adenocarcinoma AJCC v8 +11 more
Enrollment	16 participants
Start Date	2020-09-16
Primary Completion	2026-08-07 (estimated)
Study Completion	2026-08-07 (estimated)
Updated on ClinicalTrials.gov	2026-08-13