Feasibility Study of Phototherapy System to Treat H Pylori

Inclusion Criteria: * Age \> 18 and \< 90 * Documented positive for H. pylori infection by urease breath test, stool antigen or histology within thirty days prior to procedure * Willing to comply with study requirements * Able to undergo endoscopic esophagogastroduodenoscopy (EGD) with biopsy Exclusion Criteria: * History of gastric or duodenal carcinoma * History of prior gastric or duodenal surgery * Oral or intravenous antibiotics use within previous one month * Use of bismuth subsalicylate (Pepto Bismol) within previous one month * Use of photosensitizing drugs or nutritional supplements within previous one month * Active peptic ulcer disease (gastric or duodenal ulcer) * Esophagitis Grade II or higher * Oral or intravenous antibiotics use within previous one month * History of a bleeding disorder or anti-coagulant use that would prevent biopsy * PPI treatment two weeks prior to the scheduled endoscopy * Positive Pregnancy Test * Known porphyria * Suffer from phenylketonuria (PKU) * Signs of jaundice * Weight \< 100 lb or \> 250 lb * Previously enrolled in this study * Participating in another ongoing clinical trial in which concomitant diagnosis or therapeutic intervention would adversely affect the integrity of this study * The subject is inappropriate for study participation, as determined by the Investigator