View clinical trials related to Gastric Cancer.
Filter by:Progastrin is a pro-hormone that, in physiological conditions, is maturated in gastrin in G cells of the stomach. The role of the gastrin is to stimulate the secretion of gastric acids during digestion. It is also important for the regulation of cell growth of the gastric mucosal. In a healthy person, progastrin is not detectable in the peripheral blood. However, progastrin is abnormally released in the blood of patients with different cancers (colorectal, gastric, ovarian, breast, cervix uterus, melanoma…) The gene GAST coding for progastrin is a direct target gene of the WNT/ß-catenin oncogenic pathway. The activation of this oncogenic pathway is an early event in cancer development. Chronic activation of the WNT/ß-catenin oncogenic pathway occurs in almost all human solid tumors and is a central mechanism in cancer biology that induces cellular proliferation, blocking of differentiation leading to primary tumor growth and metastasis formation. Progastrin measured in the peripheral blood of patients on treatments, could be a new powerful marker for diagnosis and prognosis at different stages.
The primary hypothesis is that cancer vaccine can convert non-immunogenic gastric cancer into immunogenic phenotype susceptible to PD1 inhibition. This would lead to an improved radiological response rate and favorable immune contexture for immune checkpoint blockade
Background: Cancer-related fatigue (CRF), one of the indicators of QoL, is one of the most common side effects of cancer and its treatment. However, the pathophysiological mechanisms involved in CRF among cancer patients are not completely understood. Therefore, more in-depth researches on CRF of surgical patients suffering from gastric cancer are needed in Taiwan. Purpose: The purpose of this study is to examine the incidence rate and correlated factors (QoL and immune biomarkers) of CRF among gastric cancer patients undergoing major abdominal surgery. Method: A longitudinal study was conducted to recruit gastric cancer patients who scheduled to operate at surgical clinics from a northern medical center in Taiwan. The data will be collected with a structured questionnaire and Immune markers assessments via purposive sampling of 120 subjects. Before operation, on day 1 after operation, and on day 7 after operation, the biomarkers will be measured. The BFI-T questionnaire will be filled out before surgery and on day 1, 2, 7, 28 after surgery; The EORTC QLQ-C30 and EORTC QLQ-STO22 questionnaire will be filled out before surgery and on day 7, 28 after surgery; Type D scale-14(Taiwanese version) questionnaire will be filled out before surgery and on day 28 after surgery. Data will be analyzed by using descriptive statistics, paired t-test, Chi square test, Pearson's correlation, and the generalized estimating equation (GEE) was used to identify significant factors with QoL after operation. Anticipated achievement: The anticipated achievement of this study is to provide healthcare providers with more knowledge about CRF, and help them to enhance the quality of life on gastric cancer patients in the future.
Background: A new cancer therapy takes white blood cells from a person, grows them in a lab, genetically changes them, then gives them back to the person. Researchers think this may help attack tumors in people with certain cancers. It is called gene transfer using anti-KRAS G12D mTCR cells. Objective: To see if anti-KRAS G12D mTCR cells are safe and cause tumors to shrink. Eligibility: Adults ages 18-72 who have cancer with a molecule on the tumors that can be recognized by the study cells Design: Participants will be screened with medical history, physical exam, scans, photography, and heart, lung, and lab tests. An intravenous (IV) catheter will be placed in a large vein in the chest. Participants will have leukapheresis. Blood will be removed through a needle in an arm. A machine will divide the blood and collect white blood cells. The rest of the blood will be returned to the participant through a needle in the other arm. A few weeks later, participants will have a hospital stay. They will: - Get 2 chemotherapy medicines by IV over 5 days. - Get the changed cells through the catheter. Get up to 9 doses of a medicine to help the cells. They may get a shot to stimulate blood cells. - Recover in the hospital for up to 3 weeks. They will provide blood samples. Participants will take an antibiotic for at least 6 months. Participants will have several follow-up visits over 2 years. They will repeat most of the screening tests and may have leukapheresis. Participants blood will be collected for several years.
This study is a first in human Phase 1 study that involves patients with a type of cancer called HER2 (Human Epidermal Growth Factor Receptor 2) positive cancer. This study asks patients to volunteer to take part in a research study investigating the safety and efficacy of using special immune cells called HER2 chimeric antigen receptor specific cytotoxic T lymphocytes (HER2 specific CAR T cells), in combination with intra-tumor injection of CAdVEC, an oncolytic adenovirus that is designed to help the immune system including HER2 specific CAR T cell react to the tumor. The study is looking at combining these two treatments together, because we think that the combination of treatments will work better than each treatment alone. We also hope to learn the best dose level of the treatments and whether or not it is safe to use them together. In this study, CAdVEC will be injected into participants tumor at one tumor site which is most easiest to reach. Once it infects the cancer cells, activation of the immune response will occur so it can attack and kill cancer cells. (This approach may have limited effects on the other tumor sites that have not received the oncolytic virus injection, so, patients will also receive specific T cells following the intratumor CAdVEC injection.) These T cells are special infection-fighting blood cells that can kill cells infected with viruses and tumor cells. Investigators want to see if these cells can survive in the blood and affect the tumor. Both CAdVEC and HER2-specific autologous CAR T are investigational products. They are not approved by the FDA.
The purpose of this study is to evaluate the safety, tolerability and pharmacokinetics, and determine the maximum tolerated dose of ZSP1241 in participants with hepatocellular carcinoma, cholangiocarcinoma, gastric cancer, esophageal cancer, colorectal cancer and other advanced solid tumors.
Background: The dehiscence of esophagojejunal anastomoses is one of the most serious complications after total gastrectomy in patients with gastric cancer. Any method of avoiding this problem will affect not only the postoperative course but also the prognostic of disease. Methods: This is a prospective, randomized and multicenter trial, within the Spanish EURECCA Esophagogastric Cancer Group, to investigate the efficacy of Tisseel® in reducing the rate of esophagojejunal anastomosis leakage in patients with gastric cancer. The rate of anastomosis leak will be measured with clinical, radiological and analytic parameters. Objective: Analyze the efficacy of Tisseel® as a reinforcement in reducing the rate of anastomotic esophagojejunal anastomoses.
Participants with gastrointestinal stromal tumors(GIST) were divided into favorable and unfavorable sites according to the anatomical site of the tumor, and this study aims to validate the overall postoperative morbidity and mortality rates between favorable site receiving laparoscopic resection of GIST and that of unfavorable site under the currently standard surgical therapy.
The purpose of this study is to explore the safety and feasibility of laparoscopic spleen-preserving No. 10 lymph node dissection for patients with advanced middle or upper third gastric cancer.
<Background> 1. Current status of treatment options in advanced gastric cancer. - The cytotoxic chemotherapy, usually fluoropyrimidine + platinum combination regimen is current standard of care. In case of HER2(+) gastric cancer, the addition of trastuzumab on top of cytotoxic chemotherapy is standard of care. - In second-line setting, the cytotoxic chemotherapy in combination with Ramucirumab improved the patients' survival compared with cytotoxic chemotherapy alone. - There are few treatment options for gastric cancer patients who have been treated with more than two lines of palliative chemotherapy. Patients with good performance status even after failure to 2 kinds of palliative chemotherapy still need the active anticancer treatment options. Therefore, this is the high unmet medical need. 2. Current status of immunotherapy development in gastric cancer 3. The importance of tumor microenvironment 4. The role of polarized macrophage in TME 5. The role of polarized macrophage in gastric cancer 6. Potential of combination of PD1 inhibitor and CSF-1 inhibitor Based on these rationales, we hypothesized that the combination of PD1 inhibitor and CSF1R inhibitor might be synergistic in gastric cancer. However, the exact in vivo immune modulation by each inhibitor has not been revealed so far. Therefore, we will conduct this "biomarker study of PDR001 in combination with MCS110 in gastric cancer" to see the biologic dynamic modulation with MCS110 and combination (MCS110/PDR001) and to see preliminary efficacy signal with this combination. <Trial objectives> Primary objective: To see biomarker changes (PDL1, TAM, TIL) by MCS110 monotherapy and MCS110/PDR001 combination (To see the biomarker changes by MCS110 monotherapy at first, then, by MCS110/PDR001 combination in gastric cancer) Secondary objective: To see preliminary efficacy (ORR, irRR, PFS, DOR, DCR, OS) and safety.