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Which antibiotic combo is safer for your kidneys? new trial aims to find out

NCT ID NCT07556107

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 852 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Dec 2028

An estimate. End dates often move.

Lead sponsor

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

18 years and older

Sex

Anyone

Healthy volunteers

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

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.

  1. The places running it

    3 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Bassett Medical Center

    RECRUITING

    Cooperstown, New York, 13326, United States

  • Wake Forest University Health Sciences

    RECRUITING

    Winston-Salem, North Carolina, 27157, United States

  • West Virginia University

    RECRUITING

    Morgantown, West Virginia, 26506, United States

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