View clinical trials related to Carcinoma, Transitional Cell.
Filter by:Cisplatin-based chemotherapy is the standard regimen for advanced urothelial carcinoma. But cisplatin-unfit patients account for up to 30-40% of patients in clinical practice. Recently reported phase II/III trial of EORTC 30986 comparing gemcitabine/carboplatin (GCb) with MCAVI (Methotrexate, Carboplatin, Vinblastine) suggested that GCb be the preferred regimen over MCAVI based on the response rates, adverse events, and severe acute toxicities. But the grade 3 or worse toxicities associated with GCb are not infrequent and need more effective and more tolerable regimens. GemOx has been reported to be effective and have very favorable toxicity profiles.
Many studies previously showed the significant association between urinary arsenic profiles and urothelial carcinoma (UC) risk and observed the increased UC risk in people with lower plasma folate and higher homocysteine than those with higher plasma folate and lower homocysteine. The investigators would expect to explore the interactions among global DNA methylation, one-carbon metabolic pathway factors, urinary arsenic profiles and UC.
The investigators previously pointed out the significant association between urinary arsenic profiles and urothelial carcinoma (UC) risk through a 12-year follow-up study. Further, the investigators observed the increased UC risk in people with lower plasma folate and higher homocysteine than those with higher plasma folate and lower homocysteine in 2010. S-adenosylmethionine (SAM) is one factor included in one-carbon metabolism pathway and is the main donor of methyl group in cells. The ratio of SAM and its metabolite S-adenosylhomocysteine (SAH) not only reflected the intake level of dietary folate but also demonstrated the extent of global DNA methylation. These factors might play important roles in UC carcinogenesis. The investigators would expect to take three years to explore the interactions among global DNA methylation, one-carbon metabolic pathway factors, urinary arsenic profiles, the polymorphisms and haplotype of Glycine N-methyltransferase (GNMT) and UC. In the first year, the investigators would measure the levels of plasma folate, homocysteine, SAM and SAH and evaluate the associations between these factors and UC risk. In the second year, the investigators would set up the method of immunohistochemistry stain and compare the differences between the global DNA methylation from bladder tissues and blood. In the last year, this investigators would analyze the GNMT gene polymorphism and haplotype variation. At the same time, the investigators would explore the impact of GNMT genetic variation and global DNA methylation on UC risk. Based on the results from our research, the investigators might propose that the decreased ratio of SAM/SAH resulted in UC risk increased. This mechanism might be through the changed levels of urinary arsenic profiles and global DNA methylation.
RATIONALE: Drugs used in chemotherapy, such as cisplatin and gemcitabine hydrochloride, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Sorafenib tosylate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth or by blocking blood flow to the tumor. Giving cisplatin and gemcitabine hydrochloride together with sorafenib tosylate may kill more tumor cells. Giving them before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed. PURPOSE: This phase II trial is studying how well giving cisplatin and gemcitabine hydrochloride together with sorafenib tosylate works in treating patients with node-negative transitional cell cancer of the bladder.
The intravenously administered taxanes, docetaxel and paclitaxel, alone and in combination with other chemotherapy agents are active in patients with advanced and metastatic bladder cancer, and agents of this class are a promising treatment option for some patients. Tesetaxel is an orally administered taxane that is in development as treatment for subjects with advanced cancers. This study is being conducted to determine the efficacy and safety of tesetaxel administered to patients previously treated with chemotherapy for progressive metastatic transitional cell carcinoma of the urothelium.
Cysteine-rich 61 (Cyr61), a member of "CCN" family, regulates cell migration, proliferation, apoptosis, and angiogenesis, cell adhesion, migration, proliferation, survival, differentiation, apoptosis, angiogenesis, and extracellular matrix production. Evidences show strong correlations of aberrant Cyr61 expression in cancers of numerous organs and tissues. However, the expression and effect of Cyr61 in transitional cell carcinoma (TCC), the most common urinary tract cancer in Taiwan, remains undiscovered. Based on previous studies of Cyr61 in other cancer, the investigators hypothesize that Cyr61 may mediate TCC cell proliferation and migration; and associated with disease progression and recurrent. Thus the investigators conduct this project to study the role of Cyr61 in the pathogenesis of TCC. The investigators will retrospectively review medical history of patients with TCC treated at our institutes. Cyr61 immunohistochemical stain of their surgical samples will be performed. The correlation of Cyr61 expression of TCC and patients' clinical courses will be investigated.
RATIONALE: Sunitinib malate 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 the side effects of giving sunitinib malate and to see how well it works in treating patients with locally recurrent, locally advanced, unresectable, or metastatic urinary tract cancer.
This study collects and studies tissue and blood samples from patients with prostate or bladder/urothelial cancer that has recurred (come back) at or near the same place as the original (primary) tumor or has spread to other parts of the body. Studying samples of blood and tissue samples from patients with prostate or bladder/urothelial cancer in the laboratory may help doctors learn more about new biomarkers, potential drug targets, and resistance developing in response to treatment. It may also help doctors find better ways to treat the cancer.
To study the association between aristolochic acid and urothelial carcinoma in Taiwan
1. To investigate the relationship between arsenic methylation enzymes (AS3MT, PNP,GSTO1, and GSTO2) genetic polymorphism and UC risk. 2. To explore the relationship between cigarettes metabolites (NNK, NNAL, HBA, NNAL-Gluc, O6-Methylguanine, and N7-Methylguanine) and UC risk. 3. To examine the relationship between cigarette metabolic enzymes (CYP2A6, CYP2A13, and UGT2B7) genetic polymorphism and UC risk. 4. To elucidate the relationship between DNA repair enzymes (MGMT, XPD, XRCC1, and XRCC3) gene polymorphism and 8-OHdG or between DNA repair enzymes and UC risk. 5. To examine relationship between COX-2 (-1195G/A、-765G/C 和8473C/T), IL-6, IL-8, and TNF-α gene polymorphism and 8-OHdG or between COX-2, IL-6, IL-8, and TNF-α gene polymorphism and UC risk. 6. To examine the risk factors of the environment-environment, gene-environment, and gene-gene interaction on the risk of UC.