Active clinical trials for "Stomach Neoplasms"

This is an open-label, international, two-arm, parallel, randomized, Phase 3 study evaluating the efficacy and safety of S-1/cisplatin versus 5-FU/cisplatin in patients with advanced gastric cancer previously untreated with chemotherapy for advanced disease. Patients will be randomly assigned (1:1) to S-1/cisplatin (experimental arm) or 5-FU/cisplatin (control arm). Patients will be stratified by number of metastatic sites (one vs. more than one), locally advanced or metastatic disease, prior adjuvant therapy (yes or no), measurable or non-measurable disease, and center.

RATIONALE: The LMB-9 immunotoxin may be able to locate tumor cells and kill them without harming normal cells. This may be an effective treatment for advanced solid tumors. PURPOSE: Phase I trial to study the effectiveness of LMB-9 immunotoxin in treating patients who have advanced solid tumors that have not responded to standard therapy.

RATIONALE: Drugs used in chemotherapy such as cisplatin and paclitaxel use different ways to stop tumor cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage tumor cells. Cisplatin and paclitaxel may make the tumor cells more sensitive to radiation therapy and may kill any tumor cells remaining after surgery. PURPOSE: Randomized phase II trial to study the effectiveness of cisplatin, paclitaxel, and radiation therapy with or without fluorouracil in treating patients who have stage IB, stage IIB, or stage IIIB stomach cancer that has been removed during surgery.

Phase I trial to study the effectiveness of vaccine therapy with or without sargramostim in treating patients who have advanced or metastatic cancer. Vaccines may make the body build an immune response to kill tumor cells. Colony-stimulating factors such as sargramostim may increase the number of immune cells found in bone marrow or peripheral blood. Combining vaccine therapy with sargramostim may make tumor cells more sensitive to the vaccine and may kill more tumor cells

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. It is not known whether receiving chemotherapy before surgery may be more effective than surgery alone in treating patients with stomach cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of surgery plus combination chemotherapy with surgery alone in treating patients with stomach cancer.

This is a phase II clinical and pharmacokinetic study of suppression of human antimouse (HAMA) and antitoxin antibodies (HATA) to immunotoxin LMB-1 by Rituximab (anti-CD20). The primary objective of this study is to determine the effect of Rituximab on HAMA and HATA response to LMB-1 administered to patients with advanced carcinoma that express the B3 antigen. Other objectives include evaluation of the pharmacokinetics and anti-tumor effects.

This is a prospective, multi-center, observational study. The purpose of this study is to evaluate the efficacy and safety of Huaier Granule versus standard chemotherapy regimens in the postoperative adjuvant treatment of resectable stage II-III gastric cancer.

Trastuzumab for injection is a biosimilar of Herceptin ® produced by Chia Tai Tianqing Biotechnology Co., LTD, which is a humanized IgG1 monoclonal antibody produced by chinese hamster ovary (CHO) cells. A randomized, double-blind, single-dose, parallel phase I study comparing trastuzumab for injection with Herceptin ® in healthy male volunteers was conducted to evaluate the similarities in pharmacokinetics, tolerability, safety and immunogenicity of Trastuzumab for injection and Herceptin®.

Early gastric cancer（AGC）has no effective characteristic symptoms and signs according to clinical statistics. Neoadjuvant chemotherapy (NAC) significantly reduces the size of AGC tumors so that it has become the recommended treatment for AGC in major guidelines. However, Some patients miss the best time for surgical treatment and may have irreversible chemotherapy side effects due to NAC lacks the guidance of new indicators for precise treatment such as molecular biomarkers. Tumor organoids are highly consistent with the clinical drug sensitivities of patients which could be used as clinical treatment prediction models thus providing guidance for individualized medicine. Therefore, the project is the first to carry out the prospective study by screening the potential benefit populations of NAC based on tumor organoids drug susceptibility experiment. The following hypothesis are put forward：the potential benefit population of NAC screened by tumor organoid drugs susceptibility technology will have better clinical efficacy, better treatment tolerance and higher adverse reaction rate.

The positive rate of HER2 in Chinese patients with gastric cancer is about 12-13%. HER2 positive gastric cancer has strong invasion, high metastasis rate and poor prognosis. The effective rate of chemotherapy combined with anti-HER2 targeted therapy for HER2 positive advanced gastric cancer was 47%, and the median survival time was extended to 13.8 months. However, the status of HER2 in advanced gastric cancer has obvious temporal and spatial heterogeneity, and the heterogeneity of HER2 directly affects the outcome of anti-HER2 treatment. Therefore, compared with biopsy pathology, it is urgent to explore noninvasive, systemic and repeatable methods to evaluate HER2 status of systemic lesions. 68Ga-HER2 Affibody-BCH, a HER2 imaging agent, was independently prepared by the Department of nuclear medicine of our center. According to the results of preclinical studies, in patients with HER2 positive advanced gastric cancer, the imaging effect was the best 2 hours after intravenous injection of 68Ga-HER2 Affibody and there was no adverse reaction. 68Ga-HER2 Affibody PET/CT imaging can directly reflect the HER2 heterogeneity within the same lesion and between the primary and metastatic lesions. In order to solve the clinical problems, this study intends to further explore the imaging of 68Ga-HER2 Affibody-BCH in patients with advanced gastric cancer and the amplification of HER2 in the peripheral blood of this population, so as to overcome the heterogeneity of HER2, explore the potential beneficiaries of anti HER2 treatment, and provide the basis for the evaluation of anti-HER2 treatment efficacy.