Anti-Migration System for Anti-reflux Oeso-gastric Stent (ANTIMIG)

This study is testing a new type of esophageal stent — a small tube placed inside the food pipe to keep it open — that is designed to stay in place better and reduce complications like the stent shifting or moving after insertion. It is for people who have difficulty swallowing due to a tumor at the junction of the food pipe and stomach. **You may be eligible if:** - You are 18 or older (but under 90) - You have difficulty swallowing caused by a tumor at the junction of the esophagus and stomach, either locally advanced or metastatic - You are in a stable enough health condition for the procedure - You are covered by social security **You may NOT be eligible if:** - Your swallowing problem is caused by pressure from an external tumor (not a tumor within the esophagus itself) - You have had prior radiation to the chest or previous esophageal surgery - You are pregnant - You are under 18 or over 90 - You are in the most severe health categories (ASA 4 or 5) Talk to your doctor to see if this trial is right for you.