What is the Purpose of this Study?
Who Can Participate in this Study?
Adults with invasive esophageal, gastroesophageal or gastric adenocarcinoma that has not spread and who are planning to have chemoradiation before surgery.
What is Involved?
If you join the study, you will have:
- a physical exam and other tests.
- Imaging scans (Computerized Tomography (CT) or Positron Emission Tomography (PET)),
- An endoscopic ultrasound
- 5 Blood samples
You will also:
- Receive Pembrolizumab combined with carboplatin, paclitaxel and radiation therapy before surgery
- Receive Pembrolizumab after surgery.