NCT07556107

Brief Summary

The VPT Safety Trial (VPS) compares two common antibiotic combinations to see how they affect the kidneys of patients in the hospital with serious infections. Both combinations are approved by the Food and Drug Administration (FDA). The goal is to help doctors know which combination is safer so they can make better choices for their patients.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
852

participants targeted

Target at P75+ for phase_4

Timeline
27mo left

Started Aug 2026

Typical duration for phase_4

Geographic Reach
1 country

3 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress6%
Aug 2026Dec 2028

First Submitted

Initial submission to the registry

February 3, 2026

Completed
3 months until next milestone

First Posted

Study publicly available on registry

April 29, 2026

Completed
4 months until next milestone

Study Start

First participant enrolled

August 17, 2026

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2028

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2028

Last Updated

August 18, 2026

Status Verified

August 1, 2026

Enrollment Period

1.9 years

First QC Date

February 3, 2026

Last Update Submit

August 16, 2026

Conditions

Keywords

infectionhospitalizedAKIcystatin cvancomycinpiperacillin/tazobactammeropenemRCT

Outcome Measures

Primary Outcomes (1)

  • Serum cystatin C (Scys)

    Difference between highest Scys (mg/L) post-treatment over 7 days minus Scys pre-treatment, expressed as ratio of pre-treatment level

    7 days

Secondary Outcomes (2)

  • Acute Kidney injury (AKI)/death

    7 days

  • Infectious complications

    90 days

Other Outcomes (2)

  • serum creatinine (Scr)

    7 days

  • Kidney Injury biomarkers

    90 days

Study Arms (2)

Piperacillin/tazobactam

ACTIVE COMPARATOR

Vancomycin plus piperacillin/tazobactam

Drug: Piperacillin + Tazobactam

Meropenem

ACTIVE COMPARATOR

Vancomycin plus meropenem

Drug: meropenem

Interventions

PT Dosing (concealed): PT dosing is standard irrespective of infection severity. 4.5 gm IV loading dose over 30 min, then 4.5 g IV over 4 hr (extended infusion) 6 hrs after the loading dose, and then q 8 hr

Piperacillin/tazobactam

M dosing (concealed): M dosing depends on infection severity. 1 gm loading IV dose over 30 min, then 1 gm IV over 4 hr (extended infusion) q 8 hr (default dosing). Clinician has option to increase to 2 gm IV q 8 hr for severe infections and to decrease back to default dosing if previously chosen higher dosing is no longer deemed indicated.

Meropenem

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Hospitalized or being hospitalized.
  • Age \>/=18 yr old.
  • Serious or suspected serious infection for which VPT or VM considered a broad-spectrum combination antibiotic backbone standard of care by clinician.
  • Enrollment can be completed before the first dose of abx (ideally) and no later than before the second dose (alternatively).
  • Consenting/enrollment will not clinically significantly delay abx administration.
  • Baseline and \>/=1 prior Scr available (within 1 yr).

You may not qualify if:

  • \. AKI (\>/=moderate) (KDIGO stage 2-3) (Scr increase \>/=2-fold from chronic BL) (Scr based).
  • \. CKD (\>/=moderately to severely decreased eGFR) (KDIGO stage G3b-G5) (by history or eGFR \</=44 mL/min/1.73M2) (Scr based).
  • \. 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Bassett Medical Center

Cooperstown, New York, 13326, United States

RECRUITING

Wake Forest University Health Sciences

Winston-Salem, North Carolina, 27157, United States

RECRUITING

West Virginia University

Morgantown, West Virginia, 26506, United States

RECRUITING

Related Publications (18)

  • Miano TA, Hennessy S, Yang W, Dunn TG, Weisman AR, Oniyide O, Agyekum RS, Turner AP, Ittner CAG, Anderson BJ, Wilson FP, Townsend R, Reilly JP, Giannini HM, Cosgriff CV, Jones TK, Meyer NJ, Shashaty MGS. Association of vancomycin plus piperacillin-tazobactam with early changes in creatinine versus cystatin C in critically ill adults: a prospective cohort study. Intensive Care Med. 2022 Sep;48(9):1144-1155. doi: 10.1007/s00134-022-06811-0. Epub 2022 Jul 14.

    PMID: 35833959BACKGROUND
  • Rahman M, Shad F, Smith MC. Acute kidney injury: a guide to diagnosis and management. Am Fam Physician. 2012 Oct 1;86(7):631-9.

    PMID: 23062091BACKGROUND
  • Mishra J, Dent C, Tarabishi R, Mitsnefes MM, Ma Q, Kelly C, Ruff SM, Zahedi K, Shao M, Bean J, Mori K, Barasch J, Devarajan P. Neutrophil gelatinase-associated lipocalin (NGAL) as a biomarker for acute renal injury after cardiac surgery. Lancet. 2005 Apr 2-8;365(9466):1231-8. doi: 10.1016/S0140-6736(05)74811-X.

    PMID: 15811456BACKGROUND
  • FDA. Pfizer Injectables. ZOSYN (piperacillin and tazobactam) for injection. 2017. Accessed November 12, 2024. https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/050684s88s89s90_050750s37s38s39lbl.pdf

    BACKGROUND
  • Qian ET, Casey JD, Wright A, Wang L, Shotwell MS, Siemann JK, Dear ML, Stollings JL, Lloyd BD, Marvi TK, Seitz KP, Nelson GE, Wright PW, Siew ED, Dennis BM, Wrenn JO, Andereck JW, Han JH, Self WH, Semler MW, Rice TW; Vanderbilt Center for Learning Healthcare and the Pragmatic Critical Care Research Group. Cefepime vs Piperacillin-Tazobactam in Adults Hospitalized With Acute Infection: The ACORN Randomized Clinical Trial. JAMA. 2023 Oct 24;330(16):1557-1567. doi: 10.1001/jama.2023.20583.

    PMID: 37837651BACKGROUND
  • Cote JM, Desjardins M, Murray PT. Does Vancomycin-Piperacillin-Tazobactam Cause Pseudo-AKI, True Nephrotoxicity, or Both? Chest. 2023 Aug;164(2):273-274. doi: 10.1016/j.chest.2023.05.009. No abstract available.

    PMID: 37558318BACKGROUND
  • Blair M, Cote JM, Cotter A, Lynch B, Redahan L, Murray PT. Nephrotoxicity from Vancomycin Combined with Piperacillin-Tazobactam: A Comprehensive Review. Am J Nephrol. 2021;52(2):85-97. doi: 10.1159/000513742. Epub 2021 Mar 18.

    PMID: 33735856BACKGROUND
  • Kimball JM, Deri CR, Nesbitt WJ, Nelson GE, Staub MB. Development of the Three Antimicrobial Stewardship E's (TASE) Framework and Association Between Stewardship Interventions and Intended Results Analysis to Identify Key Facility-Specific Interventions and Strategies for Successful Antimicrobial Stewardship. Clin Infect Dis. 2021 Oct 20;73(8):1397-1403. doi: 10.1093/cid/ciab430.

    PMID: 33983389BACKGROUND
  • Downes KJ, Laskin BL, Fisher BT. The Cost of Vancomycin and Piperacillin/Tazobactam Treatment-Reply. JAMA Pediatr. 2018 May 1;172(5):494-495. doi: 10.1001/jamapediatrics.2018.0038. No abstract available.

    PMID: 29507935BACKGROUND
  • Goodman KE, Cosgrove SE, Pineles L, Magder LS, Anderson DJ, Dodds Ashley E, Polk RE, Quan H, Trick WE, Woeltje KF, Leekha S, Harris AD. Significant Regional Differences in Antibiotic Use Across 576 US Hospitals and 11 701 326 Adult Admissions, 2016-2017. Clin Infect Dis. 2021 Jul 15;73(2):213-222. doi: 10.1093/cid/ciaa570.

    PMID: 32421195BACKGROUND
  • Chen AY, Deng CY, Calvachi-Prieto P, Armengol de la Hoz MA, Khazi-Syed A, Chen C, Scurlock C, Becker CD, Johnson AEW, Celi LA, Dagan A. A Large-Scale Multicenter Retrospective Study on Nephrotoxicity Associated With Empiric Broad-Spectrum Antibiotics in Critically Ill Patients. Chest. 2023 Aug;164(2):355-368. doi: 10.1016/j.chest.2023.03.046. Epub 2023 Apr 9.

    PMID: 37040818BACKGROUND
  • Alosaimy S, Lagnf AM, Hobbs ALV, Mubarez M, Kufel WD, Morrisette T, Polisetty RS, Li D, Veve MP, Simon SP, Truong J, Finch N, Venugopalan V, Rico M, Amaya L, Yost C, Cubillos A, Chandler E, Patch M, Smith IMK, Biagi M, Wrin J, Moore WJ, Molina KC, Rebold N, Holger D, Kunz Coyne AJ, Jorgensen SCJ, Witucki P, Tran NN, Davis SL, Sakoulas G, Rybak MJ. Nephrotoxicity of Vancomycin in Combination With Beta-Lactam Agents: Ceftolozane-Tazobactam vs Piperacillin-Tazobactam. Clin Infect Dis. 2023 Feb 8;76(3):e1444-e1455. doi: 10.1093/cid/ciac670.

    PMID: 35982631BACKGROUND
  • Hammond DA, Smith MN, Painter JT, Meena NK, Lusardi K. Comparative Incidence of Acute Kidney Injury in Critically Ill Patients Receiving Vancomycin with Concomitant Piperacillin-Tazobactam or Cefepime: A Retrospective Cohort Study. Pharmacotherapy. 2016 May;36(5):463-71. doi: 10.1002/phar.1738. Epub 2016 Apr 1.

    PMID: 26952639BACKGROUND
  • Giuliano CA, Patel CR, Kale-Pradhan PB. Is the Combination of Piperacillin-Tazobactam and Vancomycin Associated with Development of Acute Kidney Injury? A Meta-analysis. Pharmacotherapy. 2016 Dec;36(12):1217-1228. doi: 10.1002/phar.1851. Epub 2016 Nov 28.

    PMID: 27805728BACKGROUND
  • Hammond DA, Smith MN, Li C, Hayes SM, Lusardi K, Bookstaver PB. Systematic Review and Meta-Analysis of Acute Kidney Injury Associated with Concomitant Vancomycin and Piperacillin/tazobactam. Clin Infect Dis. 2017 Mar 1;64(5):666-674. doi: 10.1093/cid/ciw811. Epub 2016 Dec 10.

    PMID: 27940946BACKGROUND
  • Bellos I, Karageorgiou V, Pergialiotis V, Perrea DN. Acute kidney injury following the concurrent administration of antipseudomonal beta-lactams and vancomycin: a network meta-analysis. Clin Microbiol Infect. 2020 Jun;26(6):696-705. doi: 10.1016/j.cmi.2020.03.019. Epub 2020 Mar 25.

    PMID: 32222460BACKGROUND
  • Magill SS, Edwards JR, Beldavs ZG, Dumyati G, Janelle SJ, Kainer MA, Lynfield R, Nadle J, Neuhauser MM, Ray SM, Richards K, Rodriguez R, Thompson DL, Fridkin SK; Emerging Infections Program Healthcare-Associated Infections and Antimicrobial Use Prevalence Survey Team. Prevalence of antimicrobial use in US acute care hospitals, May-September 2011. JAMA. 2014 Oct 8;312(14):1438-46. doi: 10.1001/jama.2014.12923.

    PMID: 25291579BACKGROUND
  • Watkins RR, Deresinski S. Increasing Evidence of the Nephrotoxicity of Piperacillin/Tazobactam and Vancomycin Combination Therapy-What Is the Clinician to Do? Clin Infect Dis. 2017 Nov 29;65(12):2137-2143. doi: 10.1093/cid/cix675.

    PMID: 29020249BACKGROUND

MeSH Terms

Conditions

InfectionsAcute Kidney InjurySepsis

Interventions

Piperacillin, Tazobactam Drug CombinationMeropenem

Condition Hierarchy (Ancestors)

Renal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesSystemic Inflammatory Response SyndromeInflammationPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

TazobactamPenicillanic AcidPenicillinsbeta-LactamsLactamsAmidesOrganic ChemicalsPiperacillinAmpicillinPenicillin GSulfur CompoundsSulfonesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsDrug CombinationsPharmaceutical PreparationsThienamycinsCarbapenems

Study Officials

  • Daniel Freilich, MD

    Bassett Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jennifer Victory, RN, CCRC

CONTACT

Aletha Sprague

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Comparative Effectiveness (safety) Research, mRCT, standard care treatment/control, parallel group, quadruple-blinded, pragmatic, adaptive (sample size reassessment), noninferiority, and individual level randomization.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Attending Physician, Principal Investigator #1

Study Record Dates

First Submitted

February 3, 2026

First Posted

April 29, 2026

Study Start

August 17, 2026

Primary Completion (Estimated)

June 30, 2028

Study Completion (Estimated)

December 31, 2028

Last Updated

August 18, 2026

Record last verified: 2026-08

Locations