1.	Community-based Helicobacter Pylori Eradication Phase: Phase IV Type: Prevention, Treatment Status: Active Age: 30 and over Sponsor: Other Protocol IDs: 940110, NCT00155389
2.	Feasibility Study of Phototherapy System to Treat H Pylori Phase: No phase specified Type: Prevention Status: Active Age: 18 to 90 Sponsor: Pharmaceutical / Industry Protocol IDs: lmrx01, NCT00306280
3.	The Preventive Effect of Helicobacter Pylori Eradication on the Development of Gastric Cancer Phase: No phase specified Type: Prevention Status: Active Age: 19 to 69 Sponsor: Other Protocol IDs: sihp20076, NCT00596401
4.	The Role of Cathepsin X in Infection With the Helicobacter Pylori Phase: No phase specified Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 18 to 65 Sponsor: Other Protocol IDs: IMI2010-1, 1000-05-310123, NCT01137942
5.	Prevent Exposure to Tobacco Smoke at Home [Gesunde Atemluft zu Hause] Phase: No phase specified Type: Behavioral study, Prevention Status: Approved-not yet active Age: 3 and under Sponsor: Other Protocol IDs: Krebshilfe-107539, DM8-IESO02, NCT00647413
6.	Role of Statin on the Gastric Inflammation in Patients at High Risk of Gastric Cancer Phase: No phase specified Type: Prevention, Treatment Status: Approved-not yet active Age: 20 to 70 Sponsor: Other Protocol IDs: 4-2012-0889, NCT01813994