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A randomized controlled clinical study on the intervention of Bifidobacterium lactis BL-99 in the recurrence of renal stone

A randomized controlled clinical study on the intervention of Bifidobacterium lactis BL-99 in the recurrence of renal stone

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400084326
Enrollment
Unknown
Registered
2024-05-14
Start date
2024-08-01
Completion date
Unknown
Last updated
2025-12-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Kidney stone

Interventions

Placebo group:Placebo
Probiotic group:BL-99 powder

Sponsors

West China Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1. Aged 20-60 years; 2. First diagnosed with kidney stone (via kidney-ureter-bladder radiography, urinary tract ultrasonography, or abdominal computed tomography, confirmed to have calcium oxalate as the primary component through stone composition analysis); 3. CT (thick layer 2mm) -confirmed complete stone clearance; 4. In addition to increasing water intake, no other drugs were taken to prevent stone recurrence; 5. Voluntarily participated in the trial and signed informed consent.

Exclusion criteria

Exclusion criteria: 1. Infectious stones, urinary tract abnormalities, hyperthyroidism, hyperparathyroidism, chronic renal insufficiency (serum creatinine >=133 µmol/L), kidney stones caused by long-term drug use; 2. Use of antibiotics or immunosuppressants within three months; 3. Inflammatory bowel disease, irritable bowel syndrome, GI infection, digestive system tumor, bowel surgery, or diarrhea or constipation within one month.

Design outcomes

Primary

MeasureTime frame
Stone recurrence;The metagenome of gut microbiota;24-hour urine test;

Secondary

MeasureTime frame
Metabolites in feces and blood;

Countries

China

Contacts

Public ContactKunjie Wang

Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University

wangkj@scu.edu.cn+86 189 8060 1848

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026