NEPHROLITHIASIS

This trial tests whether a vacuum-assisted ureteral access sheath (ClearPetra) removes kidney stones more completely than a standard rigid sheath (Navigator) during flexible ureteroscopy. About 156 adults with stones 1-3 cm will be randomly assigned to one sheath. The main goal i…

This study tests two approaches to prevent kidney stones from coming back in people who have had them before. One approach uses a daily pill called empagliflozin (a diabetes drug) and the other gives personalized diet advice based on urine tests. The trial will involve 400 adults…

This study compares two suction-assisted techniques used during minimally invasive kidney stone surgery. The goal is to see which method better clears stones and lowers the risk of infection. About 126 adults with medium-sized kidney stones (2-3 cm) will be randomly assigned to o…

This study compares a cheap medicine, sodium bicarbonate, to the standard prescription potassium citrate for preventing kidney stones. About 30 adults with a history of stones and low urinary citrate will take one of the two medicines. The goal is to see if sodium bicarbonate can…

This study will test three different forms of potassium citrate—a medication that helps prevent kidney stones by making urine less acidic. Twenty adults who have had kidney stones will take each form for one week, with a week off in between. Researchers will measure changes in ur…

This study tests whether rinsing the kidney with an antibiotic called dioxidine right after stone-removal surgery can stop infection-related stones from returning. About 95 adults with infection-type kidney stones will get either standard surgery alone or surgery plus the rinse. …

This study will compare two ways to position patients during surgery to remove large kidney stones. One group will lie on their back (supine), the other on their stomach (prone). Researchers want to see which position leads to fewer complications, less pain, and lower costs. The …

This study compares two new suction-based tools (FANS and CVAC) for removing medium-to-large kidney stones. About 159 adults with stones 8-20 mm will be randomly assigned to one device. The goal is to see which scope clears more stones completely, as shown on CT scans.

This study tests whether an erector spinae plane block, a type of nerve block, can reduce pain and the need for opioid painkillers after percutaneous nephrolithotomy, a surgery to remove large kidney stones. Sixty adults scheduled for this surgery will receive either the block pl…

This study looks at different ways to manage pain after a type of kidney stone surgery called PCNL. Researchers will track how much opioid pain medicine patients need and their pain levels. The goal is to find which method works best to reduce pain and limit opioid use.

This study compares general anesthesia (being fully asleep) with spinal anesthesia (numbing only the lower body) for a type of kidney stone surgery called retrograde intrarenal surgery. Researchers will look at how well the stones are removed, pain levels, and patient satisfactio…

This study looks at whether having one or two faulty copies of the CYP24A1 gene makes kidney stones more likely. Researchers will compare people with different gene variants to see how often stones occur. The goal is to better understand the genetic factors behind this common and…