Active clinical trials for "Stomach Neoplasms"

To evaluate the pathological complete response rate (pCR) of nivolumab combined with SOX (oxaliplatin + S-1) for neoadjuvant therapy of resectable gastric and gastroesophageal junction adenocarcinoma;

Peritoneum is among the most common sites of metastases in gastric cancer. Systemic chemotherapy is the current standard for peritoneal carcinomatosis (PC), although, the treatment results remain extremely poor. Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a modern treatment modality for PC, that 1) optimize the drug distribution by applying an aerosol rather than a liquid solution; and 2) apply increased intraperitoneal hydrostatic pressure to increase drug penetration to the target. Despite some encouraging preliminary results for PIPAC efficacy, it is still an investigational treatment. Furthermore, only very limited data exist for bidirectional treatment, which includes a combination of systemic chemotherapy and PIPAC. Thus, this study will investigate the feasibility of PIPAC and systemic chemotherapy combination for gastric cancer patients with peritoneal metastases.

A Phase 1, Open-label, Dose-Escalation, Safety, Pharmacokinetic and Pharmacodynamic Study of Minnelide™ Capsules given alone or in combination with paclitaxel in patients with Advanced Gastric Cancer.

This is a multicenter, open-label, prospective, phase 2 study of trastuzumab, bevacizumab, and paclitaxel as second-line treatment for patients with HER2-positive advanced gastric cancer who had progressed on first-line chemotherapy including trastuzumab or anti-HER2 agents.

This is an open,multicentre phase Ib/II study. The purpose of phase Ib is to evaluated the safety, tolerability, pharmacokinetics, immunogenicity, and preliminary antitumor activity of SHR-A1811 in combination with chemotherapy and/or immunotherapy in HER2-positive advanced/metastatic gastric/gastroesophageal junction adenocarcinoma patients. The Phase II study was designed to evaluate the efficacy and safety of SHR-A1811 in combination with chemotherapy and/or immunotherapy for advanced/metastatic HER2-positive gastric/gastroesophageal conjunctional adenocarcinoma patients.

PT217 is a bispecific antibody (bsAb) against human DLL3 (huDLL3) and human CD47 (huCD47). This is an open label, Phase I study to evaluate the safety, tolerability, pharmacokinetics (PK) and preliminary efficacy of PT217 in subjects with advanced or refractory cancers. Patients with the following tumor types will be eligible for screening: unresectable or small cell lung cancer (SCLC), large cell neuroendocrine cancer (LCNEC), neuroendocrine prostate cancer (NEPC) and gastroenteropancreatic neuroendocrine tumors (GEP-NET). Subjects must have progressed after standard therapy (platinum-based chemotherapy) or standard therapy has proven to be ineffective, intolerable or was considered inappropriate.

This phase II trial compares atezolizumab in combination with chemotherapy (docetaxel, oxaliplatin, leucovorin calcium, fluorouracil, capecitabine) to atezolizumab alone for controlling the growth and/or spreading of the disease in patients with gastric or gastroesophageal junction (JEG) cancer that has not spread from where it first started (local) or only has spread to nearby lymph nodes or tissue (locoregional) and has high microsatellite instability (MSI-H) and mismatch repair deficiency (dMMR). The mismatch repair (MMR) system in the body corrects errors made during the copying of DNA and serves as a proofreading function. If this system isn't working correctly, mutations (changes) in DNA occur which can allow the cancer to grow or spread. This is called dMMR (deficient mismatch repair) . MSI-H describes cancer cells that have a high number of mutations within microsatellites. For example, microsatellite testing that shows mutations in 30% or more microsatellites is called microsatellite instability-high (MSI-H). Microsatellites are short, repeated sequences of DNA. There is evidence that MSI-H/ dMMR gastric or GEJ tumors respond well to immunotherapy. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Docetaxel is in a class of medications called taxanes. It stops tumor cells from growing and dividing and may kill them. Oxaliplatin is in a class of medications called platinum-containing antineoplastic agents. It damages the cell's DNA and may kill tumor cells. Capecitabine is in a class of medications called antimetabolites. It is taken up by tumor cells and breaks down into fluorouracil, a substance that kills tumor cells. Chemotherapy drugs such as leucovorin calcium and fluorouracil work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Using atezolizumab as immunotherapy with and following chemotherapy versus atezolizumab alone prior to and after surgery may shrink or stabilize the tumor in patients with MSI-H/dMMR localized gastric or GEJ cancer and may increase the length of time after treatment that cancer does not come back or get worse.

Lymph node positive patients after D2 radical surgery for gastric cancer, who started to be treated at Yixing people's Hospital in April 2021, were selected and enrolled into the study group according to the patients' wishes: immune (tirelizumab) combined with chemotherapy (XELOX regimen) or control group: chemotherapy alone (XELOX regimen). Each enrolled patient signed an informed consent form approved by the ethics committee, signed, and dated. Efficacy and adverse effects were assessed in both groups.

The goal of this study is to evaluate the consistency between in vitro tumor organoid drug sensitivity and the therapeutic efficacy of in vivo drug treatment. Participants are required to provide one of fresh tumor tissues (including ascites, pleural effusion, biopsy tissues, palliative surgery specimens, etc.) for the purpose of culturing tumor organoids.

At present, there is no anti-HER2 therapy recommended by guidelines for second-line treatment of advanced gastric cancer with HER2-positive or HER2-overexpression, and combined with anti-angiogenic drugs are mainly used. Disitamab Vedotin is an anti-HER2 ADC, and its cytotoxic drugs are also anti-microtubule formation as the main mechanism of drugs. Fruquintinib is an anti-vascular TKI drug. In addition, according to the results of KEYNOTE-811, patients with HER2-positive advanced gastric cancer benefit significantly from immunotherapy, so the investigators hope to explore the possibility of immunotherapy in second-line treatment of HER2-positive advanced gastric cancer. Therefore, the study plans to enroll HER2-positive patients who have failed first-line therapy and explore the efficacy of the regimen of Disitamab Vedotin combined with fruquintinib combined with Tislezumab in second-line therapy.