Virus therapy targets superbug in transplant patients
NCT ID NCT06938867
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests a new treatment called SNIPR001, which uses specially designed viruses to kill a type of antibiotic-resistant E. coli bacteria. The trial includes 24 adults with blood cancer who are scheduled for a stem cell transplant and already carry these resistant bacteria. Participants will receive either SNIPR001 or a placebo alongside standard antibiotics to see if it is safe and can reduce the bacteria.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- SNIPR001 (a mixture of viruses that target E. coli bacteria)
- What this could lead to
- If it works, this could help prevent dangerous E. coli infections in stem cell transplant patients who carry resistant bacteria.
- What could go wrong
- This is a very early, small trial with only 24 participants. The treatment may not work or could cause unexpected side effects.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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About 24 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2025
- Expected to finish
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Apr 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Male or female ≥18 years of age at the time of consent. 2. Patient is able and willing to provide written informed consent prior to any study-related procedure. 3. Confirmed diagnosis of any hematologic malignancy. 4. Planned to undergo an allogeneic hematopoietic stem cell transplant. 5. Patient is scheduled to receive fluoroquinolone (levofloxacin) prophylaxis. 6. Colonized with Fluoroquinolone resistant E. coli (patients will be pre-screened for the presence of at least 1 Fluoroquinolone resistant E. coli colony \[cultured from a perianal swab\] performed at the local hospital lab, qualitative assessment +/-). 7. Female patients must be of non-childbearing potential (surgically sterile or menopausal for at least 1 year) or agree to use a highly effective contraception method, per local standard, while receiving treatment with SNIPR001 and for 28 days after the last dose of SNIPR001. Male patients must utilize highly effective contraceptive precautions for the duration of SNIPR001 dosing and for 28 days after the last dose of SNIPR001. 8. Female patients of childbearing potential must have a negative serum pregnancy test at Screening and a negative serum or urine test on Day -2 prior to SNIPR001 dosing. 9. Are willing to comply with all scheduled visits, laboratory tests, and other study procedures, including drinking the study medications, in the opinion of the Investigator. Exclusion Criteria: 1. Use of any treatment (approved or investigational product) considered to interact with the study drug, or which might impact the outcome of the study within 14 days (or 5 half-lives of the approved or investigational product, whichever is greater) prior to the first administration of study drug, as judged by the Investigator. 2. Use or planned use of any antibiotics with intrinsic activity against E. coli in the gut (e.g., beta-lactam antibiotics) between Pre-Screening and until the end of the SNIPR001/placebo treatment period, with the exception of TMP-SMX and levofloxacin. 3. Have known hypersensitivity or allergy to any component of SNIPR001, levofloxacin and/or Alka-Seltzer Gold treatment. 4. Unwilling or unable to comply with the requirements of this Protocol, including providing stool samples. 5. Female patients who are pregnant or lactating. 6. Have abnormal liver enzymes (alanine aminotransferase \[ALT\] or aspartate aminotransferase \[AST\] \>2 × upper limit of normal \[ULN\] or total bilirubin \>1.5 × ULN). 7. Have hepatic disease associated with impaired liver function. 8. Have a history of Achilles tendinopathy or tendon rupture.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
8 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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City of Hope
RECRUITINGDuarte, California, 91010, United States
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Fred Hutchinson Cancer Center
RECRUITINGSeattle, Washington, 98109, United States
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John Hopkins University
RECRUITINGBaltimore, Maryland, 21218, United States
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UPMC
RECRUITINGPittsburgh, Pennsylvania, 15213-2582, United States
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University of California, San Francisco
RECRUITINGSan Francisco, California, 94118, United States
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University of Minnesota
RECRUITINGMinneapolis, Minnesota, 55455, United States
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University of Texas MD Anderson Cancer Center
RECRUITINGHouston, Texas, 77030, United States
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Weill Cornell Medicine
RECRUITINGNew York, New York, 10065, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a Platelet-Boosting drug speed recovery after stem cell transplant?
- Can regional data improve bone marrow transplant results for blood cancers?
- Could a frailty score predict which older cancer patients survive intensive care?
- Why COVID-19 hits blood cancer patients harder: scientists map the immune clues
- Softer chemo before stem cell transplant aims to cure blood cancers in frail children
- Can a new drug stop the Body's attack after stem cell transplants?