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A Study Evaluating the Efficacy, Safety, and Tolerability of Cefepime/VNRX-5133 in Adults with Complicated Urinary Tract Infections.

A Phase 3, Randomized, Double-blind, Active-controlled Noninferiority Study Evaluating the Efficacy, Safety, and Tolerability of Cefepime/VNRX-5133 in Adults with Complicated Urinary Tract Infections, Including Acute Pyelonephritis.

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2018-001451-13-CZ
Enrollment
582
Registered
2019-04-12
Start date
2021-04-14
Completion date
Unknown
Last updated
2025-02-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Complicated Urinary Tract Infections, Including Acute Pyelonephritis MedDRA version: 20.0 Level: HLT Classification code 10046577 Term: Urinary tract infections System Organ Class: 100000004862

Interventions

Product Name: VNRX-5133 Product Code: VNRX-5133 Pharmaceutical Form: Powder for solution for injection/infusion INN or Proposed INN: Taniborbactam Current Sponsor code: VNRX-5133 Concentration unit:

Sponsors

VenatoRx Pharmaceuticals, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients must meet the following general inclusion criteria to be eligible for inclusion in the study: 1. Provide signed informed consent 2. Adult male and female, =18 years of age 3. If female, meets at least 1 of the following criteria: • Surgically sterile • Age =50 years and postmenopausal for =12 months • Age 10 cells/µL in unspun urine • WBC >10 cells/per high power field (HPF) in urine sediment 5. Demonstrates either AP or complicated lower UTI as defined by the following criteria: a. AP is indicated by the presence of both of the following criteria: • At least 1 of the following is present: o Nausea or vomiting o Chills or rigors or warmth associated with fever, defined as body temperature >38°C • Has flank pain or costovertebral angle tenderness b. Complicated lower UTI is indicated by the presence of all 3 of the following criteria: • At least 1 of the following is present: o Nausea or vomiting o Chills or rigors or warmth associated with fever, defined as body temperature >38°C • At least 1 of the following signs/symptoms is present: o Dysuria o Urinary urgency o Urinary frequency o Pelvic pain or suprapubic tenderness/pelvic tenderness • At least 1 of the following complicating factors is present: o Chronic urinary retention o Obstructive uropathy (if complete obstruction, should intend to relieve obstruction within 48 hours after randomization) o Neurogenic bladder with presence or history of urine residual volume of >100 mL o Indwelling catheter (with expectation for permanent discontinuation of the catheter by Study Day 5) 6. Requires IV antibacterial therapy as initial treatment for cUTI Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 524 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 58

Exclusion criteria

Exclusion criteria: Patients who meet any of the following general exclusion criteria will not be eligible for inclusion in the study: 1. Receipt of effective antibacterial drug therapy for cUTI for a continuous duration of more than 24 hours during the previous 72 hours prior to randomization 2. Where a urine culture result is available: • At least 1 uropathogen at =10^5 CFU/mL is resistant to a meropenem, or • A gram-negative bacterial pathogen is not identified • More than 2 microorganisms are isolated regardless of the colony count, or • The patient has a confirmed fungal UTI with colony count =10^3 CFU/mL 3. Requirement for use of nonstudy systemic antibacterial drug therapy that would have a potential effect on outcome evaluations in patients with cUTI 4. Patients with suspected or confirmed prostatitis or urinary tract symptoms attributable to sexually transmitted disease 5. Patients with perinephric or renal abscess 6. Patients with renal transplantation or receiving hemodialysis or peritoneal dialysis 7. Patients with urinary diversions (e.g., ileal loops, cutaneous urostomy) 8. Patients who may need ongoing antibacterial drug prophylaxis after treatment of cUTI (such as vesico-ureteral reflux) 9. Any recent history of trauma to the pelvis or urinary tract 10. Patient has any urinary catheter or device or foreign body that will not be discontinued by Study Day 5, including, but not limited to, indwelling bladder catheter, urinary catheter, nephrostomy tubes, or stent 11. Patient is unlikely to respond to 7 days of antibacterial therapy for the treatment of cUTI without bacteremia or up to 14 days of therapy for treatment of cUTI with bacteremia 12. Patient has acute hepatitis, cirrhosis (Child-Pugh Class B or C), acute hepatic failure, or acute decompensation of chronic hepatic failure 13. Patient has had a heart, lung, heart-lung, or pancreatic transplant at any time; or bone marrow transplant in the preceding year 14. Patient has any of the following laboratory values: • Estimated glomerular filtration rate (eGFR) 3.0× the upper limit of normal (ULN), unless isolated hyperbilirubinemia is directly related to the acute infection or due to known Gilbert’s disease • Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >3.0× ULN at screening. Patients with values >3.0× ULN and 3.0× ULN. Patients with values >3.0× ULN and <5.0× ULN are eligible if this value is acute and documented as being directly related to the infectious process being treated. 15. Patient has a history of serious hypersensitivity (e.g., anaphylaxis), serious allergy, or any serious reaction to cephalosporin, penicillin, carbapenem, or other ß lactam antibacterials 16. Patient is considered unlikely to survive the 4- to 5-week study period or have a rapidly progressive or terminal illness, including septic shock, that is associated with a high risk of mortality 17. Patient requires concomitant medication with valproic acid or divalproex 18. Patient is in a situation or has a condition that, in the investigator’s opinion, may interfere with optimal participation in the study, or is unlikely to comply with protoco

Design outcomes

Primary

MeasureTime frame
Main Objective: To assess the efficacy of cefepime/VNRX 5133 compared with meropenem with respect to both per patient microbiologic eradication and symptomatic resolution of all urinary tract infection (UTI)-core symptoms (or return to pre morbid baseline) at the Test of Cure (TOC) visit;Secondary Objective: • To determine the efficacy of cefepime/VNRX-5133 compared with meropenem with respect to the per patient microbiological response, per-pathogen microbiologic response, and symptomatic resolution of all UTI-core symptoms at various timepoints in various populations • To determine the efficacy of cefepime/VNRX-5133 compared with meropenem with respect to the per patient microbiological response, per-pathogen microbiologic response, and symptomatic resolution of all UTI-core symptoms in patients with cUTI due to cefepime-resistant pathogens at various timepoints in various populations • To evaluate the safety and tolerability profile of cefepime/VNRX-5133 compared with meropenem in the treatment of patients with a cUTI in the safety population •To evaluate the steady-state pharmacokinetics (PK) of cefepime and VNRX-5133 in patients using a population PK model ;Primary end point(s): The primary endpoint is the demonstration of microbiological success (any gram negative bacterial pathogens found at study entry are eradicated to <10^3 CFU/mL on urine culture) and the demonstration of symptomatic clinical success (symptomatic resolution or return to pre-morbid baseline of all UTI-core symptoms including frequency, urgency, dysuria, suprapubic/pelvic pain, and flank pain, patient is alive, and patient has not received additional antibacterial therapy for cUTI) at TOC in the microbiological intent-to-treat (microITT) population.;Timepoint(s) of evaluation of this end point: Please refer to Table 1 - Schedule of Assessments in the protocol

Secondary

MeasureTime frame
Timepoint(s) of evaluation of this end point: Please refer to Table 1 - Schedule of Assessments in the protocol;Secondary end point(s): Clinical and Microbiological Efficacy: -The proportion of patients with both microbiological success and symptomatic clinical success at TOC in the extended microITT population, clinically evaluable (CE)-TOC and microbiologically evaluable (ME)- TOC populations -The proportion of patients with both microbiological success and symptomatic clinical success at EOT in the micro-ITT, ME-EOT and CEEOT populations, and at LFU in the micro-ITT, ME-LFU and CE-LFU populations -The proportion of patients with per-patient microbiological success at EOT, TOC and LFU in the micro-ITT, ME- EOT, ME-TOC and ME-LFU populations -The proportion of patients with symptomatic clinical success at EOT, TOC and LFU in the micro-ITT population and CE-EOT, CE-TOC and CELFU populations -The proportion of patients with clinical success based on investigator opinion at TOC in the micro-ITT population -The proportion of patients with per-pathogen microbiological success at EOT in the micro-ITT and ME-EOT populations, TOC in the micro-ITT and ME-TOC populations, and at LFU in the micro-ITT and ME-LFU populations -The proportion of patients with both microbiological success and symptomatic clinical success among those with cefepime-resistant pathogens at EOT in the micro-ITT, ME-EOT and CE-EOT populations, TOC in the micro-ITT, ME-TOC, and CE-TOC populations, and at LFU in the micro-ITT, ME-LFU and CE-LFU populations -The proportion of patients with per-patient microbiological success among those with cefepime-resistant pathogens at EOT in the micro-ITT and ME-EOT populations, TOC in the micro-ITT and ME-TOC populations, and at LFU in the micro-ITT and ME-LFU populations -The proportion of patients with per-pathogen microbiological success among those with cefepime-resistant pathogens at EOT in the micro-ITT and ME-EOT populations, TOC in the micro-ITT and

Countries

Argentina, Brazil, Bulgaria, China, Croatia, Czechia, Czech Republic, Hungary, Latvia, Mexico, Peru, Romania, Russian Federation, Serbia, Turkey, Ukraine, United States

Contacts

Public ContactClinical Research

VenatoRx Pharmaceuticals, Inc.

contact@VenatoRx.com+1 (610) 644-8935

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026