Liquid Nitrogen Spray Cryotherapy Prior to Neoadjuvant Systemic Therapy in Esophageal Adenocarcinoma

This research study is for people who have locally advanced esophageal adenocarcinoma and are expected to receive chemotherapy. The purpose of this study is to compare the effectiveness of Liquid Nitrogen Spray Cryotherapy (LNSC) in addition to chemotherapy versus chemotherapy alone in the treatment of esophageal adenocarcinoma. LNSC is an FDA approved device that works by using liquid nitrogen to rapidly cool cancerous tissue causing cell damage. Participants in this study will be randomly assigned to either the "LNSC group" or the "No-LNSC group." Participants in the "LNSC group" will undergo 2 sessions of LNSC through an upper endoscopy. Participants in the "No-LNSC group," may undergo an endoscopy if needed for symptoms such as difficulty swallowing. Participation in the research will last about 4 months.