- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02321800
A Study of Efficacy and Safety of Intravenous Cefiderocol (S-649266) Versus Imipenem/Cilastatin in Complicated Urinary Tract Infections (APEKS-cUTI)
A Multicenter, Double-blind, Randomized, Clinical Study to Assess the Efficacy and Safety of Intravenous S-649266 in Complicated Urinary Tract Infections With or Without Pyelonephritis or Acute Uncomplicated Pyelonephritis Caused by Gram-Negative Pathogens in Hospitalized Adults in Comparison With Intravenous Imipenem/Cilastatin
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 2
Expanded Access
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Hospitalized male and female patients ≥ 18 years
- Clinical diagnosis of either complicated urinary tract infections (cUTI) with or without pyelonephritis or acute uncomplicated pyelonephritis
cUTI diagnosed with a history of ≥ 1 of the following:
- Indwelling urinary catheter or recent instrumentation of the urinary tract
- Urinary retention (caused by benign prostatic hypertrophy)
- Urinary retention of at least 100 mL or more of residual urine after voiding (neurogenic bladder)
- Obstructive uropathy
- Azotemia caused by intrinsic renal disease (blood urea nitrogen and creatinine values greater than normal laboratory values) OR Pyelonephritis and normal urinary tract anatomy, ie, acute uncomplicated pyelonephritis AND
At least 2 of the following signs or symptoms:
- Chills or rigors or warmth associated with fever (temperature greater than or equal to 38 degrees Celsius)
- Flank pain (pyelonephritis) or suprapubic/pelvic pain (cUTI)
- Nausea or vomiting
- Dysuria, urinary frequency, or urinary urgency
- Costo-vertebral angle tenderness on physical examination AND
All subjects had to have urinalysis evidence of pyuria demonstrated by 1 of the following:
- Dipstick analysis positive for leukocyte esterase
≥ 10 white blood cells (WBCs) per μL in unspun urine, or ≥ 10 WBCs per high power field in spun urine
- Positive urine culture within 48 hours prior to randomization containing ≥10^5 colony forming unit (CFU)/mL of a Gram-negative uropathogen likely to be susceptible to imipenem (IPM)
- Patients who were treated previously with an empiric antibiotic other than the study drugs but failed treatment, both clinically and microbiologically, were eligible for the study if they had an identified Gram-negative uropathogen that was not susceptible to the previously used empiric treatment and likely to be susceptible to IPM
- Subjects receiving antibiotic prophylaxis for UTI who present with signs and symptoms consistent with an active new UTI
Exclusion Criteria:
- Urine culture identifies only a Gram-positive pathogen and/or a Gram-negative uropathogen resistant to IPM
- Urine culture at study entry isolates more than 2 uropathogens or patient has a confirmed fungal UTI
- Asymptomatic bacteriuria, the presence of >10^5 CFU/mL of a uropathogen and pyuria but without local or systemic symptoms
- Patient is receiving hemodialysis or peritoneal dialysis
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Cefiderocol
Participants received 2 g cefiderocol by intravenous injection once every 8 hours for 7 to 14 days.
|
2000 mg intravenously every 8 hours for 7 to 14 days; dose adjustments for participants with reduced renal function (estimated CrCl ≤ 70 mL/minute) and/or body weight (< 70 kg) included every 6-hour dosing intervals and/or reduced doses.
Other Names:
|
Active Comparator: Imipenem/cilastatin
Participants received 1 g each of imipenem/cilastatin by intravenous injection once every 8 hours for 7 to 14 days.
|
1000 mg of each intravenously every 8 hours for 7 to 14 days; dose adjustments for participants with reduced renal function (estimated CrCl ≤ 70 mL/minute) and/or body weight (< 70 kg) included every 6-hour dosing intervals and/or reduced doses.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of Participants With Composite Response of Microbiological Eradication and Clinical Response at Test of Cure
Time Frame: Test of cure (TOC; 7 days after end of treatment [EOT], equivalent to Study Day 14 to 21)
|
The primary efficacy endpoint was the composite outcome of clinical response and microbiological response at the test of cure assessment, defined as 7 days (±2 days) after the end of antibiotic treatment. Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms. Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as the bacterial pathogen found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less. |
Test of cure (TOC; 7 days after end of treatment [EOT], equivalent to Study Day 14 to 21)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of Participants With Composite Response of Microbiological Eradication and Clinical Response at Early Assessment
Time Frame: Early assessment (EA; Day 4)
|
A composite outcome of clinical response and microbiological response at the early assessment, defined as Day 4 of antibiotic treatment. Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms. Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as the bacterial pathogen found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less. |
Early assessment (EA; Day 4)
|
Percentage of Participants With Composite Response of Microbiological Eradication and Clinical Response at End of Treatment
Time Frame: End of treatment (EOT; Day 7 to 14)
|
A composite outcome of clinical response and microbiological response at the end of treatment, defined as the end of the last infusion of antibiotic treatment. Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms. Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as the bacterial pathogen found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less. |
End of treatment (EOT; Day 7 to 14)
|
Percentage of Participants With Composite Response of Microbiological Eradication and Clinical Response at Follow-up
Time Frame: Follow-up (FUP; 14 days after end of treatment, Day 21 to 28)
|
A composite response of clinical response and microbiological response at the follow-up assessment, defined as 14 days after the end of treatment. Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with sustained response defined as all pre-therapy signs and symptoms of cUTI show no evidence of recurrence after administration of the last dose of study drug. Microbiological outcome was based on quantitative microbiological urine cultures, with sustained eradication defined as a urine culture obtained after documented eradication at the TOC, up to and including the FUP, showed that the bacterial uropathogen(s) identified at baseline at ≥ 10⁵ CFU/mL remained < 10⁴ CFU/mL. |
Follow-up (FUP; 14 days after end of treatment, Day 21 to 28)
|
Percentage of Participants With Microbiological Eradication at Test of Cure
Time Frame: Test of cure (7 days after end of treatment, Day 14 to 21)
|
Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as all bacterial uropathogens found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less.
|
Test of cure (7 days after end of treatment, Day 14 to 21)
|
Percentage of Participants With Microbiological Eradication at Early Assessment
Time Frame: Early assessment, Day 4
|
Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as all bacterial uropathogens found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less.
|
Early assessment, Day 4
|
Percentage of Participants With Microbiological Eradication at End of Treatment
Time Frame: End of treatment, Day 7 to 14
|
Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as all bacterial uropathogens found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less.
|
End of treatment, Day 7 to 14
|
Percentage of Participants With Microbiological Eradication at Follow-up
Time Frame: Follow-up, 14 days after end of treatment, Day 21 to 28
|
Microbiological outcome was based on quantitative microbiological urine cultures, with sustained eradication defined as a urine culture obtained after documented eradication at the TOC, up to and including the FUP, where the bacterial uropathogen(s) identified at baseline at ≥ 10⁵ CFU/mL remained < 10⁴ CFU/mL.
|
Follow-up, 14 days after end of treatment, Day 21 to 28
|
Percentage of Participants With Microbiological Eradication at Test of Cure Per Uropathogen
Time Frame: Test of cure; 7 days after end of treatment, Day 14 to 21
|
Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as the bacterial pathogen found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less. Results are reported for the 4 most frequent uropathogens, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis. |
Test of cure; 7 days after end of treatment, Day 14 to 21
|
Percentage of Participants With Microbiological Eradication at Early Assessment Per Uropathogen
Time Frame: Early assessment, Day 4
|
Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as the bacterial pathogen found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less. Results are reported for the 4 most frequent uropathogens, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis. |
Early assessment, Day 4
|
Percentage of Participants With Microbiological Eradication at End of Treatment Per Uropathogen
Time Frame: End of treatment, Day 7 to 14
|
Microbiological outcome was based on quantitative microbiological urine cultures, with eradication defined as the bacterial pathogen found at study entry at > 1 × 10⁵ CFU/mL reduced to 1 × 10⁴ CFU/mL or less. Results are reported for the 4 most frequent uropathogens, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis. |
End of treatment, Day 7 to 14
|
Percentage of Participants With Microbiological Eradication at Follow-up Per Uropathogen
Time Frame: Follow-up, 14 days after the end of treatment, Day 21 to 28
|
Microbiological outcome was based on quantitative microbiological urine cultures, with sustained eradication defined as a urine culture obtained after documented eradication at the TOC, up to and including the FUP, where the bacterial uropathogen identified at baseline at ≥ 10⁵ CFU/mL remained < 10⁴ CFU/mL. Results are reported for the 4 most frequent uropathogens, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis. |
Follow-up, 14 days after the end of treatment, Day 21 to 28
|
Percentage of Participants With Clinical Response at Test of Cure
Time Frame: Test of cure, 7 days after end of treatment, Day 14 to 21
|
Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms.
|
Test of cure, 7 days after end of treatment, Day 14 to 21
|
Percentage of Participants With Clinical Response at Early Assessment
Time Frame: Early assessment, Day 4
|
Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms.
|
Early assessment, Day 4
|
Percentage of Participants With Clinical Response at End of Treatment
Time Frame: End of treatment, Day 7 to 14
|
Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms.
|
End of treatment, Day 7 to 14
|
Percentage of Participants With Clinical Response at Follow-up
Time Frame: Follow-up, 14 days after end of treatment, Day 21 to 28
|
Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with sustained response defined as all pre-therapy signs and symptoms of cUTI showing no evidence of recurrence after administration of the last dose of study drug.
|
Follow-up, 14 days after end of treatment, Day 21 to 28
|
Percentage of Participants With Clinical Response at Test of Cure Per Uropathogen
Time Frame: Test of cure, 7 days after end of treatment, Day 14 to 21
|
Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms.
Results are reported for the 4 most frequent uropathogens, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis.
|
Test of cure, 7 days after end of treatment, Day 14 to 21
|
Percentage of Participants With Clinical Response at Early Assessment Per Uropathogen
Time Frame: Early assessment, Day 4
|
Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms.
Results are reported for the 4 most frequent uropathogens, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis.
|
Early assessment, Day 4
|
Percentage of Participants With Clinical Response at End of Treatment Per Uropathogen
Time Frame: End of treatment, Day 7 to 14
|
Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with response defined as resolution or improvement of complicated urinary tract infection symptoms present at study entry and the absence of new symptoms.
Results are reported for the 4 most frequent uropathogens, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis.
|
End of treatment, Day 7 to 14
|
Percentage of Participants With Clinical Response at Follow-up Per Uropathogen
Time Frame: Follow-up, 14 days after the end of treatment, Day 21 to 28
|
Clinical response was based on the investigator's evaluation of the participant's clinical signs and symptoms, with sustained response defined as all pre-therapy signs and symptoms of cUTI show no evidence of recurrence after administration of the last dose of study drug.
Results are reported for the 4 most frequent uropathogens, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis.
|
Follow-up, 14 days after the end of treatment, Day 21 to 28
|
Plasma Concentration of Cefiderocol
Time Frame: On Day 3 of dosing prior to infusion, end of infusion, and at 1 hour post infusion
|
On Day 3 of dosing prior to infusion, end of infusion, and at 1 hour post infusion
|
|
Urine Concentration of Cefiderocol
Time Frame: Day 3, 2 hours and 6 hours after end of infusion
|
Day 3, 2 hours and 6 hours after end of infusion
|
|
Number of Participants With Adverse Events
Time Frame: From first dose of study drug until 28 days after end of treatment; Day 35 to 42
|
A serious adverse event was defined by regulation as any adverse event (AE) occurring at any dose that resulted in any of the following outcomes:
The relationship of an event to the study drug was determined by the investigator based on whether the AE could be reasonably explained as being caused by the study drug. |
From first dose of study drug until 28 days after end of treatment; Day 35 to 42
|
Collaborators and Investigators
Sponsor
Publications and helpful links
General Publications
- Wenzler E, Butler D, Tan X, Katsube T, Wajima T. Pharmacokinetics, Pharmacodynamics, and Dose Optimization of Cefiderocol during Continuous Renal Replacement Therapy. Clin Pharmacokinet. 2022 Apr;61(4):539-552. doi: 10.1007/s40262-021-01086-y. Epub 2021 Nov 18. Erratum In: Clin Pharmacokinet. 2022 Jul;61(7):1069.
- Naseer S, Weinstein EA, Rubin DB, Suvarna K, Wei X, Higgins K, Goodwin A, Jang SH, Iarikov D, Farley J, Nambiar S. US Food and Drug Administration (FDA): Benefit-Risk Considerations for Cefiderocol (Fetroja(R)). Clin Infect Dis. 2021 Jun 15;72(12):e1103-e1111. doi: 10.1093/cid/ciaa1799.
- Portsmouth S, van Veenhuyzen D, Echols R, Machida M, Ferreira JCA, Ariyasu M, Tenke P, Nagata TD. Cefiderocol versus imipenem-cilastatin for the treatment of complicated urinary tract infections caused by Gram-negative uropathogens: a phase 2, randomised, double-blind, non-inferiority trial. Lancet Infect Dis. 2018 Dec;18(12):1319-1328. doi: 10.1016/S1473-3099(18)30554-1. Epub 2018 Oct 25.
- Portsmouth S, Echols R, Toyoizumi K, Tillotson G, Nagata TD. Structured patient interview to assess clinical outcomes in complicated urinary tract infections in the APEKS-cUTI study: pilot investigation. Ther Adv Infect Dis. 2021 Nov 24;8:20499361211058257. doi: 10.1177/20499361211058257. eCollection 2021 Jan-Dec.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Pathologic Processes
- Kidney Diseases
- Urologic Diseases
- Disease Attributes
- Nephritis
- Nephritis, Interstitial
- Pyelitis
- Infections
- Communicable Diseases
- Urinary Tract Infections
- Pyelonephritis
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Enzyme Inhibitors
- Protease Inhibitors
- Anti-Bacterial Agents
- Imipenem
- Cilastatin
Other Study ID Numbers
- 1409R2121
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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