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.	Phase III Randomized Study of Observation Versus Chlorambucil After Anti-Helicobacter Therapy in Patients With Low Grade (Stage I) Gastric Lymphoma Phase: Phase III Type: Treatment Status: Closed Age: 16 and over Sponsor: Protocol IDs: BNLI-LY03, EU-98040, NCT00003617
3.	Melphalan and Amifostine Followed By One or Two Autologous or Syngeneic Stem Cell Transplants and Maintenance Therapy in Treating Patients With Stage II-III Multiple Myeloma Phase: Phase III Type: Treatment Status: Closed Age: 18 to 70 Sponsor: NCI, Other Protocol IDs: 2004.00, NCI-2009-01543, FHCRC-2004.00, 6004, MEDIMMUNE-FHCRC-2004.00, NCT00217438
4.	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
5.	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
6.	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
7.	Chemoprevention Therapy in Treating Patients at High Risk of Developing Multiple Myeloma Phase: Phase II Type: Biomarker/Laboratory analysis, Prevention Status: Completed Age: 18 and over Sponsor: NCI, Other Protocol IDs: CDR0000068084, P30CA015083, 979202, MAYO-979202, NCI-P00-0163, NCT00006219
8.	Phase II Study of Biaxin, Revlimid, and Dexamethasone for Untreated Multiple Myeloma Phase: Phase II Type: Treatment Status: Closed Age: 18 and over Sponsor: Other Protocol IDs: 0409007427, NCT00151203
9.	Biaxin Based Antibiotic Therapy in Previously Untreated, Advanced Stage Indolent Lymphoma Phase: Phase II Type: Biomarker/Laboratory analysis, Treatment Status: Closed Age: 18 and over Sponsor: Other Protocol IDs: 07-038, NCT00461084
10.	Thalidomide, Dexamethasone, and Clarithromycin in Treating Patients With Multiple Myeloma Previously Treated With Transplant Phase: Phase II Type: Treatment Status: Closed Age: Not specified Sponsor: NCI, Other Protocol IDs: 1767.00, NCI-2011-00387, FHCRC-1767.00, 5589, CELGENE-FHCRC-1767.00, NCT00182663
11.	Lenalidomide, Dexamethasone and Clarithromycin in Treating Patients Who Have Undergone Stem Cell Transplant For Multiple Myeloma Phase: Phase II Type: Treatment Status: Closed Age: 18 and over Sponsor: NCI, Other Protocol IDs: 2135.00, NCI-2010-02116, FHCRC-2135.00, 6435, NCT00445692
12.	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