View clinical trials related to Ureter Cancer.
Filter by:Background: Hematuria, a common symptom of urinary system diseases, can result from various causes including infection, stones, trauma, and tumors. Urothelial carcinoma (UC), the most common malignancy of the urinary system, often presents with hematuria. Current diagnostic methods like urine cytology and cystoscopy have limitations in sensitivity and specificity, and cystoscopy is invasive. DNA methylation biomarkers offer potential for non-invasive UC detection, improving diagnostic accuracy in hematuria patients. Objective: This study aims to evaluate the diagnostic performance of DNA methylation biomarkers in detecting UC in patients with hematuria. Methods: This prospective pilot study will involve collecting preoperative urine samples from hematuria patients for DNA methylation testing using MSRE-qPCR. Sample size calculation was based on an assumed 25% prevalence of UC in hematuria patients, resulting in a total of 71 participants after accounting for a 20% dropout rate. Sensitivity, specificity, and diagnostic performance will be assessed using ROC curves. Conclusion: This study seeks to validate the effectiveness of urine DNA methylation testing for UC detection in hematuria patients, providing a basis for its clinical application and informing the design of larger future studies.
The goal of this clinical trial is to learn whether the addition of spinal analgesia leads to superior recovery in patients undergoing robotic-assisted laparoscopic upper urinary tract surgery under general anesthesia. The main questions it aims to answer are: - Is the decrease in wellbeing as quantified by the patient-centered outcome scale "Quality of Recovery 15" (QoR-15), from baseline to the first day after surgery (POD 1), at least 8.0 points less in patients receiving spinal analgesia in addition to general anesthesia? - Does spinal analgesia result in improved recovery as quantified by QoR-15 at POD 7, the incidence of postoperative pain at rest and at mobilization, nausea and vomiting, the need for opioid analgesics, time out-of-bed, length of stay and the incidence of complications? - Does spinal analgesia increase workload in the OR, as quantified by time from arrival in the OR to start of surgery? - Does spinal analgesia result in an increased incidence of hypotension and cardiac dysfunction during surgery, as well as an increased incidence of pruritus after surgery? Participants will be randomized to receive either spinal analgesia with bupivacaine and morphine preoperatively or an intravenous infusion with lidocaine intraoperatively. QoR-15 and other markers of recovery will be registered using structured interviews preoperatively, at POD1 and POD7. In addition, patients will record pain at rest and at mobilization three times daily in a diary. In a subgroup of patients advanced hemodynamic parameters will be recorded using pulse-contour analysis before, during and after surgery. Blood samples will also be collected in these patients at fixed intervals and analyzed for amongst others inflammation and cardiac dysfunction.
Upper tract urothelial carcinoma (UTUC) diagnosis include urography using computed tomography urography (CTU) or urography using MRI (MRU). The sensitivity of CTU decreases substan¬tially with decreasing lesion size. Other drawbacks of CTU include the radiation exposure and potential adverse effects in patients with allergic reactions or pre-existing renal impairment. In terms of urine cytology, the major drawbacks of urine cytology are low sensitivity and highly dependent of the experience and skills of the cytopathologist. We here intended to investigate whether UroCAD can be added in the diagnostic work-up of UTUC patient, and improve the accuracy of predicting UTUC before surgery.
Genitourinary malignancies such as prostate cancer, renal cell cancer, and bladder cancer in Korean population have been increased due to the aged population and the westernized lifestyles. With the advancement of technologies, studies have found that microbiome not only affects human physiological functions, such as metabolism, immunity, and haematopoiesis, but also plays a significant role in the development and progression of malignancies. However, the investigation of microbiome in urological malignances have been limited and few studies have been reported. Therefore, the investigator tried to evaluate the usefulness of microbiome in detection and monitoring of urological malignancies in Korean population. This study aims to use microbiome in tissue, plasma, stool and urine for the diagnosis, disease progression monitoring and therapeutic response evaluation. This study plan includes building big databases for microbiome of urological malignancies in Korean population.
Urological malignancies such as prostate cancer and renal cell cancer in Korean population have been increased due to the aged population and the westernized lifestyles. With the advancement of sequencing technologies, use of genetic mutation profiles in cancer detection and progression has been increased. However, use of circulating tumor DNA in urological malignances have been limited and few studies have been reported. Therefore, we tried to evaluate the usefulness of circulating tumor DNA in detection and monitoring of urological malignancies in Korean population. This study aims to use circulating tumor DNA in plasma and urine for the diagnosis, disease progression monitoring and therapeutic response evaluation. This study plan includes building big databases for circulating tumor DNA of urological malignancies in Korean population and to develop optimized circulating tumor DNA platform.
This study is to collect and validate regulatory-grade real-world data (RWD) in oncology using the novel, Master Observational Trial construct. This data can be then used in real-world evidence (RWE) generation. It will also create reusable infrastructure to allow creation or affiliation with many additional RWD/RWE efforts both prospective and retrospective in nature.
This is a phase 2 study of the drug denosumab for the management bone metastases from urothelial cancer. The purpose of this study is to find out how effective denosumab is in the management of bone metastases from urothelial cancer. This will be done by comparing denosumab with standard treatment, compared to placebo and standard treatment. Denosumab is a monoclonal antibody that binds to a protein called Receptor Activator of Nuclear Factor κB (RANK). RANK works by telling certain cells called osteoclasts to break down bone tissue. The binding of denosumab to RANK stops it from telling osteoclasts to break down bone tissue which may help with symptoms related bone metastases from urothelial cancer.
The objective is to show non-inferiority of overall survival between four cycles and six cycles of first-line cisplatin based chemotherapy to determine the optimal duration of chemotherapy in patients with advanced urothelial carcinoma.
This is a comparative study using resected/ biopsied tumors samples collected from renal cell carcinoma and urothelial carcinoma patients who underwent surgical removal of lesions, followed by immune checkpoint blockade (ICB) treatment targting programmed cell death 1 (PD1) but developed new lesions later were also removed and stored in the biosample repository (BSR). The histology and genomic analysis of the pre-treatment and metastatic samples from the same patient would be used to find out the changes that may have lead to metastasis. Also, metastatic samples from ICB naive patients would be collected and compared with those from ICB treated patients to find out if the metastasis in treated patients was due to development of reistance.
This study aims to verify superiority of pemetrexed maintenance to observation for patient without disease progression after 1 st line cisplatin-based chemotherapy.