Active clinical trials for "Kidney Neoplasms"

The purpose of this study is to verify the oncological efficacy and safety of cryoablation and radiofrequency ablation for the treatment of small renal tumors.

The purpose of this study is to obtain chemical information from part of your body without a biopsy. This is done using a technique called magnetic resonance spectroscopy (MRS) which is similar to magnetic resonance imaging (MRI) except that signals are detected from the chemicals (spectroscopy) naturally present in your body using radio waves. To receive this information from your body, small loops of wire (surface coils), placed near the tissue of interest, may be used to more effectively detect signals that come from the chemicals in your body. The investigators may use a second radio channel simultaneously, which will allow us to obtain greater chemical information (decoupling). The results may also help us to understand how this study can be used to help other patients with your condition.

Positron Emission Tomography (PET) is a specialised nuclear medicine procedure that uses positron emitting radiolabeled tracer molecules to measure biological activity. The most common of these radiolabeled tracers is 18F-fluorodeoxyglucose (18F-FDG), which is used to determine abnormal glucose metabolism in tumours and other sites. It has general applications in all areas where abnormal glucose metabolism may be present including in circumstances such as differentiating the tumour from scar tissue; evaluating the presence of the tumour in light of rising tumour markers and normal morphological imaging techniques; and assessing response to therapy where other techniques are deemed to be unhelpful. The Cross Cancer Institute has recently been funded to establish a PET centre, and this study will evaluate the effectiveness, value and safety of PET scanning in a number of uncommon cancers in the Canadian health care environment.

The purpose of this study is to determine the feasibility pedaling using an under-the desk bike during immunotherapy infusions. Also, the study hopes to evaluate how pedaling impacts quality of life and treatment response biomarkers. Lastly, the study will evaluate the relationships between treatment response and muscle mass which is evaluated with computerized tomography (CT) scans.

The goal of this clinical trial is to better tell apart whether kidney tumors are benign (not cancer) or malignant (cancer) based on a biopsy or imaging tests and ask patients how they feel about decisions they make about treatment of their kidney tumor. The main objectives are: To estimate and compare the diagnostic accuracy of renal mass biopsy alone, PEER (with renal mass biopsy), and 99mTc-sestamibi SPECT/CT (with renal mass biopsy for hot tumors) to differentiate malignant and benign renal tumors. To estimate and compare the diagnostic accuracy of renal mass biopsy, PEER (with renal mass biopsy), and 99mTc-sestamibi SPECT/CT (with renal mass biopsy for hot tumors) to differentiate oncocytoma from chromophobe RCC. Participants will be asked to complete survey questions related to their health and kidney tumor at the start and end of the study. These can be done on paper, electronically, or by telephone.

The present study is a randomized clinical trial which investigates robot-assisted partial nephrectomy (RPN) compared to image-guided cryoablation (CA) in a number of functional, oncological and economic variables. Every year close to 1000 Danes are diagnosed with renal cell carcinoma. Approximately 25% of these newly diagnosed patients have a T1a tumour, thus being candidates to nephron-sparing surgery. Today most nephronsparing surgical procedures consists of RPN, often requiring temporary clamping of the renal artery rendering the kidney to a critical period of warm ischemia which is potentially harmful to the renal function. Image guided ablative modalities has emerged as a minimal-invasive alternative to partial nephrectomy. The level of evidence within this domain is considered to be low as the existing literature is highly influenced by selection bias, and as of yet no randomized trial has compared the two modalities. Especially with the increasing age of the patients, an approach suitable for local anaestesia is desirable. Patients from Central Denmark Region and Region of Southern Denmark who are diagnosed with a pT1a renal cell carcinoma that is found to be eligible for both modalities will be offered to enter into a randomized trial to be treated with either RPN og CA. The study's primary endpoint is loss of renal function 6 and 12 month after treatment. Secondary endpoint includes recurrence free survival 1, 3 and 5 years after treatment, readmission and complication rates as well as health economic evaluations. All patients will be pre- and postoperatively assessed with biochemistry, CT urography, CT thorax and glomerular filtration rate measurements.

The G-NeSS Registry prospectively collects data on clinical and outcome variables from patients undergoing partial nephrectomy for renal masses. Analyses of data aims at identifying key factors determining the quality of surgical care in this patient population.

This study will develop a whole-of-body markerless tracking method for measuring the motion of the tumour and surrounding organs during radiation therapy to enable real-time image guidance. Routinely acquired patient data will be used to improve the training, testing and accuracy of a whole-of-body markerless tracking method. When the markerless tracking method is sufficiently advanced, according to the PI of each of the data collection sites, the markerless tracking method will be run in parallel to, but not intervening with, patient treatments during data acquisition.

Patients treated on the first line of Sunitinib-targeted therapy for metastatic kidney cancer. Collection of additional blood tubes during routine blood tests for patient follow-up, to evaluate the plasma concentration of Sunitinib and its active metabolite desethyl-Sunitinib (DES)

Renal cancer is frequent and its diagnosis mainly dependant on imaging. More than 50% of renal tumors are currently diagnosed without symptoms. However, 20% of small solid tumors are benign and this percentage is much higher in atypical cystic tumors Bosniak II and III, where 76% and 59% are benign respectively. Determining the malignancy by imaging in these cases is difficult and sometimes impossible. The fine needle aspiration (FNA) cytology or biopsy is necessary. The diagnostic sensitivity and specificity with biopsy are high, but the potential tumor contamination is a major risk. The FNA cytology is simple and safe, but its sensitivity is about 50%. We are conducting a multicentric prospective study to add the molecular markers in FNA cytology as a new diagnostic method in imaging-indeterminate renal tumors. Four molecular markers including MN/CA9, vimentin, KIT, and S100A1 will be studied. These four markers have been reported to have a differential diagnostic value in renal tumors. MN/CA9 and vimentin are often found in conventional renal cancers. KIT is frequently expressed in renal oncocytomas and chromophobe renal cancers. S100A1 may further distinguish renal oncocytoma from chromophobe renal cancer. These markers will be analyzed by real time polymerase chain reaction (RT-PCR). The aim of this study is to evaluate the diagnostic performance of the association cytology-molecular markers in imaging-indeterminate renal tumors (small solid tumors and cystic tumors ≥ Bosniak III). About 156 patients will be included in five French clinical centers including Saint-Etienne, Marseille, Grenoble, Toulouse, and Nancy. The expected results will improve the preoperative diagnostic accuracy in renal tumors.