Comparing Lactobacillus Rhamnosus GG with saline bladder wash for preventing UTIs in spinal cord injury patients

Intravesical Lactobacillus rhamnosusGG Versus Saline Bladder Wash: A Randomized, Controlled, Comparative Effectiveness Clinical Trial

Phase 2 Interventional Medstar Health Research Institute · NCT05230511

This study is testing if a special probiotic combined with a saline bladder wash can help prevent urinary tract infections in people with spinal cord injuries.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years and up
SexAll
SponsorMedstar Health Research Institute Academic / other
Locations1 site (Washington D.C., District of Columbia)
Trial IDNCT05230511 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the effectiveness of Lactobacillus Rhamnosus GG (LGG) combined with saline bladder wash compared to saline bladder wash alone in preventing urinary tract infections (UTIs) among individuals with spinal cord injuries and neurogenic bladder. The study focuses on self-management strategies for participants who experience specific urinary symptoms, such as cloudiness or foul odor. By addressing the diagnostic challenges associated with UTIs in this population, the trial seeks to provide a novel approach to managing urinary health without relying on antibiotics. Participants will be monitored for changes in bladder and urine quality as primary outcomes.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older with spinal cord injuries lasting at least six months who manage their bladder through intermittent catheterization.

Not a fit: Patients with additional genitourinary pathologies, those using prophylactic antibiotics, or individuals with active cancer or autoimmune disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this intervention could significantly reduce the incidence of UTIs in patients with spinal cord injuries, improving their overall health and quality of life.

How similar studies have performed: While this approach is novel in the context of spinal cord injuries, similar studies have shown promise in using probiotics for UTI prevention in other populations.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age ≥18 years;
2. SCI at least 6 months duration;
3. NLUTD (as determined by their SCI physician or urologist);
4. Utilizing intermittent catheterization for bladder management; and
5. Community dwelling (discharged from the acute care setting).

Exclusion Criteria:

1. Known genitourinary pathology beyond neuropathic bladder (i.e., vesicoureteral reflux, bladder or kidney stones, etc.);
2. Use of prophylactic antibiotics;
3. Instillation of intravesical agents (e.g., gentamycin, saline; or Lactobacillus);
4. Immunodeficiency;
5. Any oral antibiotics within the past 2 weeks;
6. Psychologic or psychiatric conditions influencing the ability to follow instructions;
7. Participation in another study in which results would be confounded;
8. 6 months since prior exposure to intravesical LGG®; and
9. Active cancer (or within 5 years) or active autoimmune disorder

Where this trial is running

Washington D.C., District of Columbia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Spinal Cord InjuriesNeurogenic BladderIntermittent Catheter
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.