Active clinical trials for "Stomach Neoplasms"

RATIONALE: Vaccines made from a gene-modified virus may help the body build an effective immune response to kill tumor cells. PURPOSE: This phase I trial is studying the side effects and best dose of vaccine therapy in treating patients with colorectal, stomach, or pancreatic cancer.

RATIONALE: Sorafenib tosylate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the tumor. PURPOSE: This phase II trial is studying how well sorafenib tosylate works in treating patients with relapsed esophageal cancer and/or stomach cancer.

This study is to evaluate the antitumor activity (i.e. progression free survival, overall survival, response rate, etc), safety and quality of life in patient with recurrent or metastatic gastric cancer during 4-regimen (i.e. SP, FL/Tax, FL/Doc, FOLFOX) based chemotherapy. In addition, it is to evaluate efficacy and adverse events of anticancer agents according to the results of pharmacogenetic study.

The purpose of this study is to determine the safety and tolerability profile including the dose limiting toxicity of AbGn-7 in patients with chemo-refractory advanced solid tumor of epithelial origin, and of AbGn-7 in combination with FOLFOX7 in patients with chemo-naive/chemo-refractory recurrent, locally advanced or metastatic gastric cancer.

The purpose of this study is to determine whether Helicobacter pylori eradication could reduce the new tumor development after endoscopic resection of gastric tumor.

RATIONALE: Drugs used in chemotherapy, such as oxaliplatin, leucovorin calcium, fluorouracil, irinotecan hydrochloride, and docetaxel, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Combining more than one drug may kill more tumor cells. It is not yet known which regimen of combination chemotherapy is more effective in treating tumor cells. PURPOSE: This randomized phase II trial studies how well oxaliplatin, leucovorin calcium, and fluorouracil work compared to irinotecan hydrochloride and docetaxel in treating patients with esophageal cancer, gastric cancer, or gastroesophageal junction cancer.

The prognosis of advanced gastric cancer and adenocarcinoma of the gastro-esophageal (GE) junction is poor. Even with modern chemotherapy the median survival ranges around 8-10 months. Inhibition of neoangiogenesis seems to be a very promising approach in gastric cancer. Vascular endothelial growth factor (VEGF) acts as one of the most potent stimulating agents of angiogenesis, and several strategies targeting the VEGF signaling pathway have been developed, including anti-VEGF antibodies, soluble receptors binding directly to VEGF ligand, anti-VEGF receptor (VEGFR) antibodies and VEGFR tyrosine kinase inhibitors. The breakthrough in the clinical development of anti-angiogenic therapy against colorectal cancer came in 2003 with a large prospective, randomized clinical trial of bevacizumab, a monoclonal antibody directed against VEGF. Anti-angiogenic therapy has introduced a highly effective, completely new mode of action in this area and is the new standard of care in advanced colorectal cancer. The concept of VEGF inhibition is also very promising in gastric cancer. Bevacizumab was investigated in combination with irinotecan and cisplatin in a phase-II trial, including 47 patients with gastric and GE-junction carcinoma. Bevacizumab could safely be given and could improve time to tumor progression by 75% compared to historical controls. Several phase-II trials confirm the tolerability and promising efficacy of bevacizumab in gastric cancer (Bevacizumab + Docetaxel/Oxaliplatin; FOLFOX + Bevacizumab; Docetaxel/Cisplatin/Irinotecan + Bevacizumab). These results were so promising that randomized phase-III trials in the 1st-line and perioperative setting are under way (AVAGAST-trial: Cisplatin /Capecitabine +/- bevacizumab 1st line ; MAGIC-B-trial : ECX +/- bevacizumab perioperative). Tyrosin kinase inhibitors which inhibit VEGF receptors and EGFR are also investigated in gastric cancer with promising efficacy. Pazopanib, an orally available tyrosine kinase inhibitor, selectively inhibits vascular endothelial growth factor receptors (VEGFR)-1, -2 and -3, c-kit and platelet derived growth factor receptor (PDGF-R), which results in inhibition of angiogenesis in tumors in which these receptors are upregulated. Pazopanib has the advantage of being an orally available anti-angiogenesis component. Pazopanib shows promising activity in phase-II trials in renal cell cancer, breast cancer, soft tissue sarcoma and non small cell lung cancer. A phase-III trial of pazopanib in renal cell cancer (NCT00334282) is completed and resulted in the approval of Pazopanib for this disease. A phase-III trial in soft tissue sarcoma (NCT00753688) is currently performed. In phase-I trials, pazopanib was investigated in combination with FOLFOX and Capecitabine/Oxaliplatin. FOLFOX could be administered in full dose with 800 mg pazopanib. In Cape/Ox, capecitabine had to be reduced to 850mg/m² bd. 5-FU- and oxaliplatin-based regimens are one of the established treatment standards for 1st-line therapy in metastatic gastric cancer. The efficacy of 5-FU, leukovorin and oxaliplatin (FLO) compared to 5-FU, cisplatin could be confirmed in a randomized phase-III trial of the Arbeitsgemeinschaft Internistische Onkologie (AIO). FLO has a favorable toxicity profile. In Germany, FLO is a widely used combination for advanced gastric cancer and is a recommended regimen in the new German S3-guidelines 2011. The investigators therefore want to examine FLO + pazopanib.

This open-label, single-arm, multicenter, Phase 2 trial will treat at least 40 participants with advanced gastric adenocarcinoma including adenocarcinoma of the gastroesophageal junction (GEJ) who have not previously received systemic chemotherapy for this setting. All eligible participants will receive the combination of cetuximab plus S-1 (a combination of tegafur, gimeracil, and oteracil) and cisplatin.

Based on the current promising results with irinotecan and cetuximab in patients with recurrent metastatic colorectal cancer, and the excellent results of Irinotecan and 5-FU in gastric cancer , the present clinical study to evaluate the overall response rate, the time to progression and the overall survival of the combined treatment of cetuximab and irinotecan and 5-FU in patients with esophagogastric cancer is urgently needed.

This phase I trial is studying the side effects and best dose of erlotinib hydrochloride when given together with oxaliplatin, fluorouracil, and radiation before surgery and alone after surgery in treating patients with locally advanced cancer of the esophagus and gastroesophageal junction. Drugs used in chemotherapy, such as oxaliplatin and fluorouracil, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Erlotinib hydrochloride may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Radiation therapy uses high-energy x-rays to kill tumor cells. Giving combination chemotherapy together with erlotinib hydrochloride and radiation therapy before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed. Giving erlotinib hydrochloride after surgery may kill any tumor cells that remain after surgery