Which antibiotic combo is safer for your kidneys? new trial aims to find out
NCT ID NCT07556107
First seen Jun 25, 2026 · Last updated Aug 19, 2026 · Updated 3 times
Summary
This study compares two common antibiotic combinations—vancomycin with piperacillin/tazobactam versus vancomycin with meropenem—to see which is less harmful to the kidneys. About 852 hospitalized adults with serious infections will be randomly assigned to one of the two combos. The goal is to help doctors make safer treatment choices.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- vancomycin combined with either piperacillin/tazobactam or meropenem
- What this could lead to
- If it works, this could help doctors choose the safer antibiotic combination to reduce kidney damage in hospitalized patients.
- What could go wrong
- This is a Phase 4 trial comparing already-approved drugs, so no major breakthrough is expected. Results may show no clear difference or may not apply to all patient groups.
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 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 852 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Aug 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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. Hospitalized or being hospitalized. 2. Age \>/=18 yr old. 3. Serious or suspected serious infection for which VPT or VM considered a broad-spectrum combination antibiotic backbone standard of care by clinician. 4. Enrollment can be completed before the first dose of abx (ideally) and no later than before the second dose (alternatively). 5. Consenting/enrollment will not clinically significantly delay abx administration. 6. Baseline and \>/=1 prior Scr available (within 1 yr). 7. Pt or LAR able to provide IC. Exclusion criteria 1\. AKI (\>/=moderate) (KDIGO stage 2-3) (Scr increase \>/=2-fold from chronic BL) (Scr based). 2\. CKD (\>/=moderately to severely decreased eGFR) (KDIGO stage G3b-G5) (by history or eGFR \</=44 mL/min/1.73M2) (Scr based). 3\. Beta lactam allergy. 4. Contraindication to VPT or VM. 5. Infection requiring VPT or VM specifically or another abx regimen. 6. Participation in another research study with interventions that may impact study endpoints.
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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
3 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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Bassett Medical Center
RECRUITINGCooperstown, New York, 13326, United States
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Wake Forest University Health Sciences
RECRUITINGWinston-Salem, North Carolina, 27157, United States
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West Virginia University
RECRUITINGMorgantown, West Virginia, 26506, United States
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