JRCT ID: jRCTs041250183
Registered date:13/02/2026
A Placebo-Controlled Trial of LitControl pH Down in Patients with Infection-Related Urolithiasis
Basic Information
| Recruitment status | Recruiting |
|---|---|
| Health condition(s) or Problem(s) studied | Infectious Urolithiasis |
| Date of first enrollment | 13/02/2026 |
| Target sample size | 90 |
| Countries of recruitment | |
| Study type | Interventional |
| Intervention(s) | Intervention Group: Participants will receive LitControl pH Down 420 mg, administered as two capsules twice daily (after breakfast and dinner) for a duration of 24 weeks. Placebo Group: Participants will receive placebo capsules, administered as two capsules twice daily (after breakfast and dinner) for a duration of 24 weeks. |
Outcome(s)
| Primary Outcome | Stone-related events during the 6-month (24-week) treatment period, including the development of new stones, growth or increase in existing stones, pain or hematuria, stone-associated urinary tract infections, and therapeutic interventions. |
|---|---|
| Secondary Outcome | Stone-related events during the 3-month (12-week) treatment period, including the development of new stones, growth or increase in existing stones, pain or hematuria, stone-associated urinary tract infections, and therapeutic interventions. Change in urinary pH from baseline Positive rate of urine cultures Changes in pyuria Inflammatory markers in blood tests |
Key inclusion & exclusion criteria
| Age minimum | >= 18age old |
|---|---|
| Age maximum | < 90age old |
| Gender | Both |
| Include criteria | Patients with infectious urolithiasis following surgical treatment 1.Patients aged 18 and 90 years who were diagnosed with urolithiasis and underwent surgical treatment (extracorporeal shock wave lithotripsy, transurethral lithotripsy, or percutaneous nephrolithotomy) at the participating institution. 2.Patients whose most recent surgical stone analysis at the participating institution confirmed the presence of calcium phosphate and/or magnesium ammonium phosphate in the stone composition. 3.Patients who have provided written informed consent to participate in the study. |
| Exclude criteria | Patients who are unable to take oral medication or are unlikely to benefit from the investigational drug due to severe gastrointestinal malabsorption. Women who are pregnant, breastfeeding, or may be pregnant. Patients with active urinary tract infections accompanied by fever 38 degrees. Patients receiving best supportive care (BSC) due to terminal cancer or equivalent conditions. Any other patients deemed inappropriate for study participation by the principal or sub-investigator. |
Related Information
| Primary Sponsor | Unno Rei |
|---|---|
| Secondary Sponsor | |
| Source(s) of Monetary Support | |
| Secondary ID(s) |
Contact
| Public contact | |
| Name | Rei Unno |
| Address | 1, Kawasumi Mizuho-cho, Mizuho-ku, Nagoya, Aichi Aichi Japan 467-8602 |
| Telephone | +81-52-853-8266 |
| unno@med.nagoya-cu.ac.jp | |
| Affiliation | Nagoya City University Hospital |
| Scientific contact | |
| Name | Rei Unno |
| Address | 1, Kawasumi Mizuho-cho, Mizuho-ku, Nagoya, Aichi Aichi Japan 467-8602 |
| Telephone | +81-52-853-8266 |
| unno@med.nagoya-cu.ac.jp | |
| Affiliation | Nagoya City University Hospital |