KIDNEY STONE

This study was designed to test a device called RetroPerc for removing large kidney stones. It planned to enroll adults with kidney stones larger than 10 mm. The study was withdrawn before any participants were enrolled, so no results are available.

This study looks at whether losing weight with a special very low-calorie diet (Optifast VLCD) can lower the amount of oxalate in urine. Oxalate is a substance that can form kidney stones. The study includes 14 obese adults who have had calcium oxalate kidney stones before. Parti…

This study looks at whether a popular lemonade drink, potassium citrate, or both can lower the risk of forming kidney stones. Ten adults with a history of stones and low citrate levels will have their urine tested after each treatment. The goal is to see which approach best incre…

This study looks back at medical records of about 3000 people who had a procedure using a new device called the CVAC System to remove kidney stones. The goal is to see how well the device clears stones and if there are any complications. The study does not involve new treatments …

This study compares two laser techniques for breaking up kidney and ureteral stones. About 150 adults with stones 6-20 mm will get either standard high-powered laser or the newer Moses 2.0 pulse modulation. The goal is to see which method shortens surgery time and clears more sto…

This pilot study is testing whether a daily 20-minute meditation practice, done for 2-4 weeks before and 2 weeks after kidney stone surgery, can reduce pain and anxiety in patients aged 12 and older. Half of the 50 participants will learn meditation, while the other half will rec…

This study looks at whether giving two shockwave treatments in the same week is just as safe and effective as waiting three weeks between treatments for kidney stones that are 8 to 15 mm in size. About 600 adults with kidney stones will be invited to join. The goal is to see if a…

This study follows 1600 people with small kidney stones (4mm or smaller) to see how often they pass without treatment within 4 to 8 weeks. Researchers will track symptoms, blood tests, and stone features to find clues that predict whether a stone will pass on its own. The goal is…

This study looks at how obesity changes the way the body handles oxalate, a key substance in calcium oxalate kidney stones. Researchers will compare normal-weight and obese stone formers to understand differences in oxalate absorption, kidney processing, and natural production. T…

This study looks at how being obese might increase the body's natural production of oxalate, a substance that can lead to kidney stones. Researchers will give 40 adults (both obese and non-obese) a special low-oxalate diet and measure their urine oxalate levels. The goal is to be…

This study was designed to measure how often urine flows backward from the bladder into the ureter after placing a special stent (RELIEF) in people with kidney stones. Researchers planned to use X-ray imaging to check for reflux and track any symptoms. However, the study was with…

This study looks at whether giving patients access to a website called WellPrept helps them feel more confident and informed about their upcoming prostate or kidney stone surgery. Researchers will measure if the tool shortens time spent in clinic visits and reduces trips to the e…