View clinical trials related to Signet Ring Cell Carcinoma.
Filter by:The latest research has found that the use of positron-labeled FAP inhibitors for targeting FAP has achieved very good results in displaying tumor stroma, especially for tumors with poor FDG PET/CT observation, such as liver cancer, renal cancer, and gastric cancer. Although the studies were based on small sample data or case reports, they achieved significantly better results than 18F-FDG [13,15-17]. For patients who meet the inclusion and exclusion criteria, using FAPI PET/CT and FDG PET/CT imaging may have guiding significance for your treatment. If distant metastasis is found, information such as the location, size, and quantity of metastasis can be provided to provide objective imaging information for further treatment; We will promptly provide detailed information to you and your supervising physician, who will guide your personalized treatment. The drugs used have undergone strict quality inspection, and currently, no adverse reactions have been found in multiple medical institutions both domestically and internationally. If you experience any discomfort, new changes in your condition, or any unexpected circumstances during the study period, regardless of whether it is related to the study or not, you should promptly notify your doctor or contact our research leader. He/she will make a judgment and provide appropriate medical treatment. We will provide a certain proportion of compensation for any additional visits and expenses incurred during this examination. The entire research process is under the supervision of relevant departments of Guangdong Provincial People's Hospital. If you encounter any questions during the research process, you can consult the research doctor.
Gastric signet ring cell carcinoma (GSRCC) possesses unique epidemiology and pathogenesis in the field of cancer, but its incidence is low. Unfortunately, there is currently a lack of systematic research focusing on the prognostic proteomic features of GSRCC. Given this knowledge gap, this study aims to comprehensively characterize the proteomic landscape of GSRCC using a reliable and reproducible DIA-PCT method. This study objectives include characterizing the heterogeneity of GSRCC, performing molecular typing, identifying potential biomarkers and therapeutic targets, and providing a resource for stratified analysis of GSRCC. To achieve these goals, the investigators selected a cohort of 112 GSRCC patients from a pool of over 10,000 gastric cancer patients and conducted a proteomic analysis using the DIA-PCT method. This meticulous approach revealed four novel proteomic subtypes of GSRCC, each exhibiting unique molecular characteristics. Additionally, the investigators discovered that PRDX2 and DDX27 can serve as predictive biomarkers for GSRCC, which were further validated in an independent cohort of 75 GSRCC patients. Furthermore, the investigators paid particular attention to the MLT-GSRCC subgroup and identified three distinct proteomic clusters among MLT-GSRCC patients. Subtype 2 within this subgroup demonstrated the poorest prognosis. Through a rigorous screening process, the investigators determined potential targets for the treatment of GSRCC. In conclusion, these findings contribute to the investigators understanding of the heterogeneity of GSRCC and provide valuable resources for future clinical stratification and targeted treatment strategies.
This phase II trial studies how well talimogene laherparepvec and nivolumab work in treating patients with lymphomas that do not responded to treatment (refractory) or non-melanoma skin cancers that have spread to other places in the body (advanced) or do not responded to treatment. Biological therapies, such as talimogene laherparepvec, use substances made from living organisms that may stimulate or suppress the immune system in different ways and stop tumor cells from growing. Immunotherapy with monoclonal antibodies, such as nivolumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving talimogene laherparepvec and nivolumab may work better compared to usual treatments in treating patients with lymphomas or non-melanoma skin cancers.
Background • A major increase in incidence of signet ring cell adenocarcinomas (ADCI) of the upper digestive tract in western countries - Discordant results in the literature concerning the prognosis value of the presence of signet ring cells. - Preliminary data suggesting (i) an advanced stage at time of diagnosis, (ii) more often in the form of carcinose, (iii) a more pejorative prognosis, (iv) a recurrence more frequent, more quickly, and more often in the form of peritoneal carcinose, (v) a chemo resistance (vi) the need for a specific therapeutic strategy compared to non-signet ring cell adenocarcinomas. Primary objective To test the hypothesis that 5-year survival rate is significantly lower in the signet ring cells (SRC) adenocarcinoma when compared to non-SRC adenocarcinoma in the upper digestive tract Secondary objectives - Impact of neoadjuvant CT on overall survival - Impact and differential diagnostic value of linitis - R0 resection rates - 3 years recurrence free survival - Overall 3 years survival - Prognostic factors - Prognostic value of the presence of a minority quota of signet ring cell - Objective response rate after medical treatment (chemotherapy, radiochemotherapy) in non-resected patients - Tolerance of (radio) chemotherapy for ADCI Methodology Intention to treat retrospective case-control multicentric study A pairing on demographic criteria (age, sex, ASA score, center) and tumor criteria (TNM stage) will be done to ensure comparability in case control study groups. Inclusion criteria All consecutive patients taken care of, for a proven histologically adenocarcinoma (ADCI and ADNCI) of the esophagus, the esogastric junction, or the stomach, in surgical or medical oncology investigator centers, will be saved in a given database. For whom the first consultation took place between January 1997 and January 2010 Exclusion criteria Histological type other than adenocarcinoma Other localization than esogastric junction, esophagus or stomach Planned study period The data will be collected over a period from January 1997 to January 2010. The objective is to complete the data collection for summer 2010.