Active clinical trials for "Kidney Neoplasms"

High doses of gabapentin are associated with pancreatic acinar cell tumors in rats, but there has been no post marketing pancreatic carcinogenicity signal with gabapentin as reported by spontaneous reports in AERS or in the published literature. In a published case-control screening study of the association of gabapentin with 55 cancers, the only cancer that met the screening criteria for possibly increased cancer risk with gabapentin exposure was renal (including renal pelvis) cancer. This association was judged to be likely due to or substantially accentuated by confounding by cigarette smoking, hypertension, and lifestyle (Cancer Causes Control 2009;20:1821-1835). The relationship between gabapentin exposure and pancreatic cancer and renal cancer is studied in NCT01138124, and supplemental analyses for these cancers are performed in the current study. The FDA recommended GSK also study the relationship between gabapentin and all-cancer sites, as well as cancer at the following specific sites: 1) stomach, 2) anus, anal canal, and anorectum, 3) lung and bronchus, 4) bones and joints, 5) breast, 6) penis, 7) urinary bladder, and 8) other nervous system. The primary objective of this study is to determine whether exposure to gabapentin is associated with an increased risk of developing all-cancer, and these specific cancers in the United Kingdom (UK) General Practice Research Database (GPRD). Each member of the UK population is registered with a General Practice, which centralizes the medical information not only from the general practitioners themselves but also from specialist referrals and hospital attendances. Over 487 General Practices contribute data to the GPRD. The study cohort from which cases and controls are drawn is all subjects in the GPRD 1993-2008. Gabapentin was approved in the UK in May 1993. Entry into the study cohort begins Jan 1, 1993 for all those who are registered in GPRD before that time, and at the time of registration if later than Jan 1, 1993. Subjects are excluded from the GPRD cohort if they have a cancer diagnosis or a history of cancer prior to the cohort entry date. Patients with a first diagnosis of the respective cancer 1995-2008 are risk set matched with up to 10 controls within the same General Practice for age at cohort entry (within two years), sex, and year of entry into the study cohort (within one year). For cases, the index date is the date of first diagnosis of the respective cancer. The index date for controls is set as the date at which the follow-up time from cohort entry is the same as the case. The index date is chosen so as to give the control equal follow-up time to that of the case for ascertainment of use of gabapentin. Cases and controls will be required to have at least 2 years of follow-up in the study cohort before their index date. Cases must have no history of any other cancer diagnosis prior to the index date. Controls are required to be free of cancer diagnosis in the database up to the control's index date. Data on gabapentin prescriptions are obtained for cases and controls from study cohort entry to the index date. Gabapentin exposure will be assessed as ever/never, number of prescriptions, cumulative dose, and cumulative duration, with a 2 year lag period incorporated to control for protopathic bias (gabapentin prescription for initial pain symptoms of undiagnosed cancer) and latency (time between cancer onset and specific GPRD cancer diagnosis). Crude and adjusted odds ratios and 95% confidence intervals (CI) will be produced from conditional logistic regression models, with additional analyses evaluating for dose-response. Covariates include indications for gabapentin use and risk factors for each cancer.

This research study is studying biomarkers in tissue samples from patients with high-risk Wilms tumor. Studying samples of tissue from patients with cancer in the laboratory may help doctors to learn more about changes that occur in DNA and identify biomarkers related to cancer.

This is a prospective, multi-center, post-market study to evaluate the clinical utility of IRIS, a 3D anatomical modeling software, with standard CT scans during pre-operative planning and intra-operative navigation for nephrectomy. The study will be conducted over the course of 21-24 months and enroll approximately 60-120 subjects.

Microwave thermal ablation (MO) is recognized as an alternative to surgery for the local-regional treatment of primary and secondary hepatic and renal tumors and for secondary pulmonary tumors in patients at anesthetic and/or surgical risk. Microwaves have a reputation for not producing reproducible ablation volumes with elliptical deformations and risks of over or under processing. The Covidien manufacturer offers a microwave system that guarantees more spherical and reproducible ablations: Emprint TM ablation system with Thermosphere TM technology (thermal control, field control, wavelength control). The investigators have 2 years of experience and therefore propose to carry out a first retrospective study, on a cohort of about fifty patients, whose objective will be to compare the volume of in vivo ablation one month after thermo-ablative treatment by microwave of a hepatic, renal or pulmonary tumour with the reference volume announced by the Covidien abacus manufacturer. Microwave ablation, which is much less studied, is less used because of the low reproducibility of necrosis volumes. The Covidien manufacturer offers a system that allows ablation volumes that are supposed to be reproducible, which attracted the Nîmes University Hospital during the call for tenders. To the investigator's knowledge, there are no studies that have evaluated the actual volume of ablation by this system.

The aim of the study is to evaluate trifecta and pentafecta outcomes for laparoscopic partial nephrectomy (LNP) in patients with clinical T1N0M0 renal tumor.

The primary objective of this study is to obtain de-identified, clinically characterized, whole blood specimens to evaluate biomarkers associated with cancer for diagnostic assay development.

Retrospective cohort study

Kidney cancer belongs to a heterogeneous group of tumors and is the most common oncourological disease; up to 80% of cases are clear cell carcinoma.

STUDY DESIGN: prospective multicentric observational SAMPLE SIZE OF THE STUDY: The estimated number of patients to enroll in the multicenter study is at least 270 patients (statistically calculated referring to the results of a monocentric analysis including 101 patients with the same design, already performed by the Coordinator Center). NUMBER OF CENTERS INVOLVED: Considering a total number of patients enrolled of at least 270, number of Centers to be involved: 5. STUDY PROCEDURES: 3D virtual model rendering CT-scan images sent in DICOM format to MEDICS (Turin, Italy) after anonymization. Dedicated online platform available to upload the anonymized CT images, after registration. CT imaging processing by bioengineers and 3DVM building within 72 hours 3D-PDF download from the same online platform Nephrometric score assessment All CT-scans and their 3DVMsevaluation in order to assess surgical complexity, as classified by the PADUA nephrometry score and its relative PADUA risk category. For each Center: assessment of the PADUA score on the basis of the CT-scans (2D-NS) by one urologist; assessment of the PADUA score on the basis of the 3DVMs (3D-NS) by another urologist. Surgical intervention and pathological assessment Dedicated expert surgeon for each Center performing NSS to all patients with the same surgical technique. Dedicated uro-pathologist for each Center performing the histopathological evaluations of the specimens.

This research study is looking at biomarkers in urine samples from patients with Wilms tumor. Studying samples of urine from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment