Barrett's Esophagus - 315 - 3 Way Cross-Over

Exclusion Criteria

• - A history of esophageal, gastric, or duodenal surgery, including anti-reflux surgery or endoscopic anti-reflux procedures, except for simple closure of a gastric or duodenal ulcer.
• - History of various gastrointestinal diseases - please see investigator for full list.
• - Evidence of any malignant disease in the last 5 years, except minor superficial skin disease.
• - Unstable diabetes mellitus. Stable on a controlled diet, oral agents or insulin are acceptable.