The Vancomycin Piperacillin/Tazobactam (VPT) Patient Safety Trial (VPS)
VPS
A Randomized Controlled Trial Comparing Renal Effects of Vancomycin Combined With Either Piperacillin/Tazobactam or Meropenem: VPT Patient Safety (VPS) Study
2 other identifiers
interventional
852
1 country
3
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Aug 2026
Typical duration for phase_4
3 active sites
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
First Submitted
Initial submission to the registry
February 3, 2026
CompletedFirst Posted
Study publicly available on registry
April 29, 2026
CompletedStudy Start
First participant enrolled
August 17, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2028
August 18, 2026
August 1, 2026
1.9 years
February 3, 2026
August 16, 2026
Conditions
Keywords
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 COMPARATORVancomycin plus piperacillin/tazobactam
Meropenem
ACTIVE COMPARATORVancomycin plus 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
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.
Eligibility Criteria
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
- Bassett Healthcarelead
- Johns Hopkins Universitycollaborator
- Patient-Centered Outcomes Research Institutecollaborator
Study Sites (3)
Bassett Medical Center
Cooperstown, New York, 13326, United States
Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157, United States
West Virginia University
Morgantown, West Virginia, 26506, United States
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: 35833959BACKGROUNDRahman 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: 23062091BACKGROUNDMishra 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: 15811456BACKGROUNDFDA. 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
BACKGROUNDQian 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: 37837651BACKGROUNDCote 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: 37558318BACKGROUNDBlair 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: 33735856BACKGROUNDKimball 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: 33983389BACKGROUNDDownes 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: 29507935BACKGROUNDGoodman 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: 32421195BACKGROUNDChen 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: 37040818BACKGROUNDAlosaimy 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: 35982631BACKGROUNDHammond 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: 26952639BACKGROUNDGiuliano 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: 27805728BACKGROUNDHammond 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: 27940946BACKGROUNDBellos 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: 32222460BACKGROUNDMagill 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: 25291579BACKGROUNDWatkins 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
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Daniel Freilich, MD
Bassett Medical Center
Central Study Contacts
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
- 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