Trans-Pacific Multicenter Collaborative Study of Minimally Invasive Proximal Versus Total Gastrectomy for Proximal Gastric and Gastroesophageal Junction Cancers

This international study is comparing two types of minimally invasive (laparoscopic or robotic) stomach surgery — partial stomach removal (proximal gastrectomy) versus full stomach removal (total gastrectomy) — for cancers in the upper stomach or the area where the stomach meets the esophagus. **You may be eligible if...** - You are 18 or older - You have been diagnosed with non-metastatic stomach or gastroesophageal junction cancer confirmed by biopsy - You are scheduled for curative-intent minimally invasive surgery - You speak English, Spanish, Japanese, or Korean **You may NOT be eligible if...** - You have known malabsorption syndromes or upper GI structural problems - You are dependent on narcotic pain medications - Your surgeon determines you cannot comply with follow-up procedures Talk to your doctor to see if this trial is right for you.