Sodium Bicarbonate for Kidney Stones

This trial explores whether sodium bicarbonate, a more affordable alternative to potassium citrate, can prevent kidney stones by reducing urine acidity. The study compares the effects of sodium bicarbonate with potassium citrate to evaluate their effectiveness. Individuals who have had kidney stones and are using or considering potassium citrate might be suitable candidates. Participants will try both treatments briefly to determine which is more effective. As a Phase 1, Phase 2 trial, this research aims to understand how the treatment works in people and measure its effectiveness in an initial, smaller group.

The trial information does not specify if you need to stop taking your current medications. It's best to discuss this with the study team or your doctor.

Research has shown that sodium bicarbonate is generally safe for people with kidney stones. It reduces urine acidity, helping to prevent stone formation. Some studies suggest it can also increase citrate levels in urine, which is beneficial since low citrate can lead to more stones. Although detailed information on side effects is limited, sodium bicarbonate is usually safe for short-term use.

Potassium citrate, however, is a more established treatment for kidney stones. It can reduce the recurrence of stones by 75% in people with calcium-based stones. Most people tolerate potassium citrate well, though some may experience stomach upset.

Most treatments for kidney stones, like potassium citrate, work by altering urine pH to prevent stone formation. But sodium bicarbonate, the study drug, offers a fresh approach by potentially being more effective at quickly neutralizing urine acidity. Researchers are excited because sodium bicarbonate could act faster, offering relief in days instead of weeks. Additionally, this treatment might be easier to tolerate for some patients, providing a more comfortable experience compared to standard options.

Research suggests that baking soda (sodium bicarbonate) might help prevent kidney stones by reducing urine acidity, which can lower the risk of stone formation. Some studies have shown that it can also improve kidney function in individuals with long-term kidney issues. However, more research is needed to fully understand its effect on kidney stones. In this trial, participants will receive either sodium bicarbonate followed by potassium citrate or vice versa, with a washout period in between. Potassium citrate has proven effective, reducing the chance of new stones forming by up to 96%. In summary, while potassium citrate is known to work well, baking soda shows promise as a more affordable option.⁵⁶⁷⁸⁹