1.	Comparison of Sequential or Concomitant Therapy for Helicobacter Pylori Infection Phase: Phase IV Type: Treatment Status: Completed Age: 18 to 75 Sponsor: Other Protocol IDs: KMU-IRB00003151, VGHKS95-CT3-11, NCT00656968
2.	Antibiotic Therapy and Antacids in Patients With Malt Lymphoma of the Stomach Phase: Phase II Type: Treatment Status: Completed Age: 18 to 80 Sponsor: NCI, Other Protocol IDs: CPPDM95-084, P30CA016672, MDA-CPPDM-95084, NCI-T95-0003D, CDR0000064361, T95-0003, NCT00002682
3.	Phase II Trial of Antibiotic Eradication of Helicobacter Pylori and, Failing That, Local Therapy with Cyclophosphamide, Doxorubicin, Vincristine, and Prednisone (CHOP) and Involved Field Radiation in Patients with Mucosa Associated Lymphoid Tissue (MALT) Lymphomas (Summary Last Modified 04/1999) Phase: Phase II Type: Treatment Status: Closed Age: 18 and over Sponsor: NCI Protocol IDs: SWOG-9703, S9703
4.	Antibiotic Therapy in Treating Patients With Low Grade Gastric Lymphoma Phase: Phase II Type: Treatment Status: Completed Age: 18 and over Sponsor: Other Protocol IDs: EORTC-20961, CRC-EORTC-20961, HOVON-33, NCT00003151
5.	Randomized Study of Omeprazole and Amoxicillin and/or Vitamin and Mineral Supplementation Comprising Vitamin E, Ascorbic Acid, and Selenium and/or Garlic Supplementation to Inhibit Progression Towards Gastric Cancer in Patients With Precancerous Gastric Lesions Phase: No phase specified Type: Prevention Status: Closed Age: 35 to 65 Sponsor: NCI Protocol IDs: NCI-OH-95-C-N029, BICR-OH95-C-N029, NCT00134121
6.	Helicobacter Pylori Eradication to Prevent Gastric Cancer Phase: No phase specified Type: Natural history/Epidemiology, Prevention Status: Closed Age: 30 to 59 Sponsor: Other Protocol IDs: SMMU20100501, NCT01133951