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Study of Cefepime-zidebactam (FEP-ZID) in Complicated Urinary Tract Infection (cUTI) or Acute Pyelonephritis (AP)

A Phase 3, Randomized, Double-blind, Multicenter, Comparative Study to Determine the Efficacy and Safety of Cefepime-zidebactam vs. Meropenem in the Treatment of Complicated Urinary Tract Infection or Acute Pyelonephritis in Adults

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04979806
Enrollment
530
Registered
2021-07-28
Start date
2022-08-28
Completion date
2024-11-25
Last updated
2026-05-22

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

Conditions

Acute Pyelonephritis, Complicated Urinary Tract Infection

Brief summary

This is a Phase 3, randomized, double-blind, multicenter, non-inferiority study to evaluate the efficacy, safety, and tolerability of FEP-ZID vs. meropenem in the treatment of hospitalized adults with cUTI or AP. Approximately 528 hospitalized adult subjects (≥ 18 years of age) diagnosed with cUTI or AP will be enrolled in the study. The diagnosis of cUTI or AP will be based on a combination of clinical symptoms and signs plus the presence of pyuria. The total duration of treatment with study drug is 7 to 10 days. Each subject must remain hospitalized during the study drug treatment period; no outpatient parenteral antibiotic therapy is allowed.

Interventions

DRUGMeropenem

1 g IV q8h

DRUGCefepime-zidebactam (FEP-ZID)

3 g (2 g FEP + 1 g ZID) IV q8h

Sponsors

Wockhardt
Lead SponsorINDUSTRY
Medpace, Inc.
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Male or female ≥ 18 years of age 2. Provide a signed written informed consent prior to any study-specific procedures 3. Meet the clinical criteria for either cUTI or AP 4. Requires hospitalization to manage the cUTI or AP 5. Agrees to use effective methods of contraception

Exclusion criteria

1. Known or suspected disease that may confound the assessment of efficacy. 2. Receipt of more than 72 hours of prior antibiotic therapy except for those failing prior antibiotic therapy and/or having documented uropathogen resistant to the prior therapy. 3. Rapidly progressive illness such that the subject is unlikely to survive the study period. 4. Pregnant or breastfeeding women 5. History of a seizure disorder requiring current treatment 6. Creatinine clearance \< 15 mL/min or on renal dialysis 7. Neutropenia or elevated liver enzymes 8. Hypersensitivity to beta-lactam antibiotics 9. Unlikely to comply with the protocol or the Investigator considers that study participation may not be optimal for the subject

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Subjects With Overall Success at Test-of-CureTest Of Cure Visit (Day 17 ± 2 days)Overall success is defined as complete resolution of cUTI or AP symptoms present at study entry (or return to premorbid state) and no new cUTI or AP symptoms together with microbiologic eradication of the bacterial pathogen found at study entry (reduced to \<1000 colony forming units or CFU/mL)
Percentage of Subjects With Treatment-Emergent Adverse Events (TEAE)Day 1 to the end of study Late Follow-Up visit (LFU) (26 ± 2 days)]Collection of number of adverse events.

Secondary

MeasureTime frameDescription
Percentage of Subjects With Overall Success at End-of-TreatmentEnd of Treatment Visit (Day 7 - 10 ± 1 day)Overall success is defined as complete resolution of cUTI or AP symptoms present at study entry (or return to premorbid state) and no new cUTI or AP symptoms together with microbiologic eradication of the bacterial pathogen found at study entry (\<1000 CFU/mL)
Percentage of Subjects With Clinical Cure at End-of-TreatmentEnd of Treatment Visit (Day 7 - 10 ± 1 day)Clinical cure is defined as complete resolution of cUTI or AP symptoms present at study entry (or return to premorbid state) and no new cUTI or AP symptoms together with microbiologic eradication of the bacterial pathogen found at study entry (reduced to \<1000 CFU/mL)(CFU)/mL.
Percent of Subjects With Microbiological Eradication at End-of-TreatmentEnd of Treatment Visit (Day 7 - 10 ± 1 day)Microbiologic eradication is defined as demonstrating \<1000 CFU/mL of the bacterial pathogen found at study entry
Percentage of Subjects With Clinical Cure at Test-of-CureTest-of-Cure (Day 17+-2)Clinical cure is defined as complete resolution of cUTI or AP symptoms present at study entry (or return to premorbid state) and no new cUTI or AP symptoms together with microbiologic eradication of the bacterial pathogen found at study entry (reduced to \<1000 CFU/mL)
Percent of Subjects With Microbiological Eradication at Test-of-CureTest-of-Cure (Day 17 ± 2 days)Microbiologic eradication is defined as demonstrating \<1000 CFU/mL of the bacterial
Percentage of Subjects With Clinical Cure at Late Follow-upLate Follow-up (Day 26 ± 2 days)Clinical cure is defined as complete resolution of cUTI or AP symptoms present at study entry (or return to premorbid state) and no new cUTI or AP symptoms together with microbiologic eradication of the bacterial pathogen found at study entry (reduced to \<1000 CFU/mL)
Plasma Concentration of FEP-ZIDOn Days 1 and 3 (+1) of dosing prior to infusion, within 15 minutes after the end of infusion, and at 3 timepoints up to 7 hours hours post infusionPlasma samples from ZID-FEP-treated subjects were analyzed to determine concentrations of ZID and FEP using a validated assay. Pharmacokinetic analyses were based on the PK populations at pre-specified time points on Days 1 and 3 (+1).

Countries

Bulgaria, China, Estonia, India, Lithuania, Mexico, Poland, Slovakia, United States

Baseline characteristics

Characteristic
Age, Customized
>=18 years in MITT population
529 Participants
Race/Ethnicity, Customized
American Indianor Alaskan Native
7 Participants
Race/Ethnicity, Customized
Asian Chinese
5 Participants
Race/Ethnicity, Customized
Asian Non Chinese
106 Participants
Race/Ethnicity, Customized
White
469 Participants
Region of Enrollment
Bulgaria
74 participants
Region of Enrollment
China
17 participants
Region of Enrollment
Estonia
41 participants
Region of Enrollment
India
36 participants
Region of Enrollment
Lithuania
93 participants
Region of Enrollment
Mexico
14 participants
Region of Enrollment
Poland
21 participants
Region of Enrollment
Slovakia
21 participants
Region of Enrollment
United States
10 participants
Sex: Female, Male
Female
234 Participants
Sex: Female, Male
Male
98 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 3520 / 177
other
Total, other adverse events
35 / 35219 / 177
serious
Total, serious adverse events
8 / 3521 / 177

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 23, 2026