NCT06559618

Bacteriophage Therapy in Spinal Cord Injury Patients With Bacteriuria

A Phase 1B Study to Assess Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Bacteriophage Therapy in Spinal Cord Injury Patients With Bacteriuria

• Status: Recruiting
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 30 (estimated)
• Sponsor: Barbara Trautner · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This is a Phase 1b study to assess the safety, tolerability, PK, and PD of investigational phage therapy (IP) in adults with SCI and bladder colonization (ASB). It is a single-center, randomized, double-blind, placebo-controlled study in adults with SCI with neurogenic bladders and bacteriuria who use indwelling catheters, or who require intermittent catheterization for bladder drainage.

Detailed description

Approximately 30 participants will be randomized 1:1 to receive either investigational phage therapy (3 x 10\^8 PFU phage(s)) or inert placebo (sterile normal saline solution) will be administered intravesicularly (instilled into the participant's bladder via catheter) twice a day (BID) for 7 days; the investigational phage therapies are personalized for each participant per phage susceptibility testing to the predominant E. coli pathogen in the participant's bladder. A mixture of up to three phages in a sterile solution will comprise the investigational phage therapy. The study duration for participants will be up to 65 days, which includes up to 30 days for screening, 7 days of IP treatment, and post-treatment assessments at Days 14, 21, 28 and 35 (7, 14, 21 and 28 days after the End of Treatment \[EOT\] on Day 7, respectively). Day 35 is defined as the EOS. The investigators will strive to enroll participants who are receiving inpatient care in the Spinal Cord Injury units, but enrollment of outpatients with SCI is also possible. Study enrollment will continue for up to 30 evaluable participants. The study will consist of a Screening Period of up to 30 days. On Day -1, eligible participants will be randomized to investigational phage therapy or placebo. The Treatment Period (Days 1-7) is 7 days and participants will receive a total of 14 doses of IP. The EOT will be after IP dose 14 on Day 7. The Follow-up Period is 35 days starting the day after the EOT with study assessments on Days 14, 21, and Day 35 (EOS). Adverse event data will be collected throughout the study from Treatment Day 1 through the EOS.

Conditions

• Bacteriuria
• Spinal Cord Injuries
• Asymptomatic Bacteriuria
• Escherichia Coli

Interventions

Type	Name	Description
DRUG	Phage Therapy	A 20 mL sterile solution containing one to three individual phage drug substances (TPC) with total strength (potency) 3 x 10\^8 plaque-forming units (PFU), will be administered intravesicularly twice a day (one instillation in the morning and one in the evening \[at least six hours apart\], respectively) for 7 days. The selection of individual phages to include in the TPC are personalized/customized for each participant per phage susceptibility testing to the participant's urinary E. coli (testing is conducted by TAILФR Service Center). Each dose of TPC will be followed with a 10 mL flush of sterile 0.9% saline solution.
OTHER	Placebo	Sterile 0.9% saline solution also 20 mL, followed with a 10 mL flush of the same solution.

Timeline

• Start date: 2025-02-03
• Primary completion: 2027-09-01
• Completion: 2028-12-01
• First posted: 2024-08-19
• Last updated: 2026-04-15

Locations

2 sites across 1 country: United States

Regulatory

• FDA-regulated drug study