Nebulized phage (BX004) treatment for adults with CF and chronic Pseudomonas lung infection
Official title: A Phase 2b, Randomized, Double-Blind, Placebo-Controlled, Multicenter Study to Evaluate Nebulized Bacteriophage Treatment in Outpatient Adult Cystic Fibrosis (CF) Subjects With Chronic Pseudomonas Aeruginosa (PsA) Pulmonary Infection
Run by BiomX, Inc. · NCT06998043 · Data updated 2026-11-12
This trial will test whether inhaled phage therapy (BX004), given twice daily for 8 weeks, can reduce Pseudomonas aeruginosa in the sputum of adults with cystic fibrosis and chronic lung infection.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 63 (estimated) |
| Sponsor | BiomX, Inc. Industry-sponsored |
| Locations | 14 sites (Birmingham, Alabama and 13 other locations) |
| Status | Recruiting |
| Started | July 2, 2025 |
| Main results expected | March 2026 |
| Study ends | September 2026 |
| Registry record updated | July 22, 2025 |
| Trial ID | NCT06998043 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18 years) with confirmed cystic fibrosis and chronic Pseudomonas aeruginosa pulmonary infection who are clinically stable, have FEV1 40–80% predicted, and can provide adequate sputum samples are ideal candidates.
✕Probably not a fit
Patients under 18, those with FEV1 below 40% predicted, known hypersensitivity to bacteriophages or formulation components, recent phage therapy, or recent detection of Burkholderia cenocepacia or active nontuberculous mycobacterial infection are unlikely to benefit or be eligible.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a randomized, double-blind, placebo-controlled, multicenter Phase 2b study comparing nebulized BX004 versus placebo in clinically stable adults with cystic fibrosis and chronic Pseudomonas aeruginosa pulmonary infection. Participants receive twice-daily nebulized dosing for 8 weeks on top of their background CF therapies, with sputum samples collected to measure bacterial burden. Primary outcome is change in PsA amount in sputum; secondary outcomes include lung function, quality of life, rates of negative sputum cultures, and safety/tolerability. Subjects are followed for safety for 6 months after dosing, with oversight by a CF Foundation Data Safety Monitoring Board.
Why it matters
Potential benefit: If successful, BX004 could offer a new inhaled option to lower Pseudomonas levels in the lungs, potentially improving breathing, quality of life, and reducing reliance on systemic antibiotics.
How similar studies have gone: Phage therapy for Pseudomonas has shown promise in case reports and small compassionate-use series, but randomized controlled data are limited and this approach remains relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key Inclusion Criteria: * Cystic fibrosis patients with chronic Pseudomonas aeruginosa pulmonary infection receiving standard of care inhaled antibiotics (cycling or continuous regimen) or no inhaled antibiotics * Age ≥ 18 years * FEV1 40%-80% predicted * Clinically stable lung disease * Willing and able to provide adequate sputum samples, using any method (spontaneously expectorated, induced, from home or clinic) at designated study visits. Key Exclusion Criteria: * Known hypersensitivity to bacteriophages or excipients in the formulation. * Receipt of prior bacteriophage therapy within the 6 months prior to Screening or Day 1 * Detection of Burkholderia cenocepacia from respiratory tract within 1 year prior to Screening or from Screening culture * Currently receiving systemic treatment for allergic bronchopulmonary aspergillosis * Currently receiving treatment for active infection with non-tuberculous mycobacteria or prior detection of Mycobacterium abscessus in 12 months prior to Screening * History of severe neutropenia * History of lung transplant * History of solid organ transplant * Acquired or primary immunodeficiency syndrome * Initiation or change in type of CFTR modulator less than 3 months prior to Screening * Pregnant or breastfeeding female
Where it's running
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University of Alabama at Birmingham
Birmingham, Alabama, United States Recruiting -
University of California San Francisco
San Francisco, California, United States Recruiting -
National Jewish Health
Denver, Colorado, United States Recruiting -
Central Florida Pulmonary Group
Orlando, Florida, United States Recruiting -
Avanza Medical Center
Pensacola, Florida, United States Recruiting -
Rutgers, Robert Wood Johnson Medical School
New Brunswick, New Jersey, United States Recruiting
Show 8 more locations
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New York Medical College
Hawthorne, New York, United States Recruiting -
Northwell Health
New York, New York, United States Recruiting -
Vanderbilt University Medical Center
Nashville, Tennessee, United States Recruiting -
Providence Alaska Medical Center
Anchorage, Alaska, United States Not yet recruiting -
University of Arkansas for Medical Sciences
Little Rock, Arkansas, United States Not yet recruiting -
Stanford University
Palo Alto, California, United States Not yet recruiting -
Joe DiMaggio Children's Health
Hollywood, Florida, United States Not yet recruiting -
University of Utah
Salt Lake City, Utah, United States Not yet recruiting
Study contacts
- Study coordinator: Urania Rappo, MD
- Email: uraniar@biomx.com
- Phone: 1-617-256-2625
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.