Clinical trial Recruiting at 5 sites Phase 4 Interventional Ages 18 and up

Which antibiotic combo is safer for kidneys in serious hospital infections

Official title: A Randomized Controlled Trial Comparing Renal Effects of Vancomycin Combined With Either Piperacillin/Tazobactam or Meropenem: VPT Patient Safety (VPS) Study

Run by Bassett Healthcare · NCT07556107 · Data updated 2026-11-12

This trial tests whether vancomycin with piperacillin/tazobactam is gentler on the kidneys than other common broad-spectrum antibiotics for adults with serious infections in the hospital.

More Sepsis trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment852 (estimated)
SponsorBassett Healthcare
Academic / other
Locations7 sites (Worcester, Massachusetts and 6 other locations)
StatusRecruiting
StartedAugust 17, 2026
Main results expectedJune 30, 2028
Study endsDecember 31, 2028
Registry record updatedOctober 15, 2026
Trial IDNCT07556107 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) hospitalized with a serious infection where VPT or VM are considered standard care options.

Probably not a fit

Patients with moderate-to-severe preexisting kidney disease or beta-lactam allergy may not benefit or could be excluded.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The VPS trial compares two FDA-approved antibiotic regimens used for serious infections in hospitalized patients to see if one leads to more acute kidney injury (AKI). It uses kidney function tests, including cystatin C, to assess safety. The study aims to help doctors choose the safer option when treating severe infections in the hospital. Enrollment targets adults with suspected serious infection where VPT or VM could be used, and excludes those with moderate-to-severe preexisting kidney disease or beta-lactam allergy. The trial is conducted at multiple centers and led by Bassett Healthcare with collaboration from Johns Hopkins and PCORI.

Why it matters

Potential benefit: If successful, the trial could clarify which antibiotic strategy minimizes kidney injury, guiding safer prescribing for seriously ill patients.

How similar studies have gone: Prior research with improved kidney testing did not show a clear excess of kidney problems with VPT, but consensus remains unsettled and this study addresses that gap.

Who can join: the full rules

Show full inclusion / exclusion criteria
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.

Where it's running

  • University of Nebraska Medical Center
    Omaha, Nebraska, United States
    Recruiting
  • Bassett Medical Center
    Cooperstown, New York, United States
    Recruiting
  • Wake Forest University Health Sciences
    Winston-Salem, North Carolina, United States
    Recruiting
  • Medical University of South Carolina - South Carolina Clinical & Translational Research Institute
    Charleston, South Carolina, United States
    Recruiting
  • West Virginia University
    Morgantown, West Virginia, United States
    Recruiting
  • University of Massachusetts Chan Medical School
    Worcester, Massachusetts, United States
    Not yet recruiting
Show 1 more location
  • NY Presbyterian/Queens
    Flushing, New York, United States
    Not yet recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.