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Oral Sulopenem-etzadroxil/Probenecid Versus Ciprofloxacin for Uncomplicated Urinary Tract Infection in Adult Women

A Prospective Phase 3 Randomized Multi-center Double-blind Study of Efficacy Tolerability & Safety of Oral Sulopenem-etzadroxil/Probenecid vs Ciprofloxacin for Treatment of Uncomplicated Urinary Tract Infections (uUTI) in Adult Women

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03354598
Enrollment
1671
Registered
2017-11-28
Start date
2018-08-01
Completion date
2020-01-20
Last updated
2021-01-12

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

Conditions

Uncomplicated Urinary Tract Infections

Brief summary

This is a prospective, Phase 3, randomized, multi-center, double-blind study of the efficacy, tolerability, and safety of oral sulopenem-etzadroxil/probenecid versus oral ciprofloxacin for treatment of uncomplicated urinary tract infection (uUTI) in adult women

Interventions

Treatment of uncomplicated urinary tract infection

DRUGCiprofloxacin

Treatment of uncomplicated urinary tract infection

Sponsors

Iterum Therapeutics, International Limited
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

1. Female patients ≥18 years of age with 24-96 hours of urinary symptoms attributable to a urinary tract infection (UTI) 2. Two of the following signs and symptoms of uUTI: urinary frequency, urinary urgency, pain or burning micturition, suprapubic pain 3. A mid-stream urine specimen with: 1. a dipstick analysis positive for nitrite AND 2. evidence of pyuria as defined by either: i. a dipstick analysis positive for leukocyte esterase ii. at least 10 white blood cells per cubic millimeter on microscopic analysis of unspun urine iii. White blood cell count ≥10 cells/high-powered field in the sediment of a spun urine 4. Has given written informed consent to participate in the study.

Exclusion criteria

1. Presence of signs and symptoms suggestive of acute pyelonephritis: fever (temperature \> 38°Celsius), chills, costovertebral angle tenderness, flank pain, nausea, and/or vomiting 2. Receipt of antibacterial drug therapy potentially effective as treatment of uUTI within the prior 7 days 3. Concurrent use of non-study treatments that would have a potential effect on outcome evaluations in patients with uUTI 4. Patients with ileal loops or urinary stoma 5. Patients with an indwelling urinary catheter in the previous 30 days 6. Patients with paraplegia 7. Patients who are likely to receive ongoing antibacterial drug prophylaxis after treatment of uUTI (e.g., patients with vesico-ureteral reflux) 8. Any history of trauma to the pelvis or urinary tract 9. Patient's urine culture, if available at study entry, identify more than 2 microorganisms regardless of colony count or patient has a confirmed fungal UTI 10. Patient is receiving hemodialysis or peritoneal dialysis or had a renal transplant 11. Known history of creatinine clearance \<50 mL/min 12. Patients known to have liver disease 13. Patients who are pregnant, or females of child-bearing age unable to take adequate contraceptive precautions 14. Patients with uncontrolled diabetes mellitus 15. Patients with history of blood dyscrasias 16. Patients with history of uric acid kidney stones 17. Patients with acute gouty attack 18. Patients on chronic methotrexate therapy 19. Patient known to be immunocompromised 20. Patients with a known history of myasthenia gravis 21. Patients who require concomitant administration of tizanidine or valproic acid 22. Patients with a history of allergy or hypersensitivity to carbapenems, beta-lactams, quinolones or probenecid 23. Patient is considered unlikely to survive the 4-week study period or has a rapidly progressive or terminal illness including septic shock which is associated with a high risk of mortality 24. History of seizures 25. Use of any other investigational drug in the 30 days prior to the study

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Microbiologic Modified Intent to Treat Resistant (Micro-MITTR) Participants With Overall SuccessDay 12+/-1 dayOverall Success: Clinical Success (resolution of uncomplicated urinary tract infection (uUTI) symptoms present at study entry and no new symptoms) AND Microbiologic success (eradication of the baseline pathogen)
Percentage of Microbiologic Modified Intent to Treat Susceptible (Micro-MITTS) Participants With Overall SuccessDay 12 +/- 1 dayOverall Success is Clinical Success (resolution of uUTI symptoms present at study entry and no new uUTI symptoms) AND Microbiologic success (eradication of the baseline pathogen)

Secondary

MeasureTime frameDescription
Percentage of Microbiologic Modified Intent to Treat Resistant (Micro-MITTR) Patients With Microbiologic SuccessDay 12+/-1 dayMicrobiologic success is defined as eradication of the baseline pathogen (\<1000 Colony Forming Units (CFU)/mL) at the Test of Cure visit

Other

MeasureTime frameDescription
Percentage of Microbiologic Modified Intent to Treat (Micro-MITT) Participants With Overall Success12 +/- 1 dayOverall Success is Clinical Success (resolution of uUTI symptoms present at study entry and no new uUTI symptoms) AND Microbiologic success (eradication of the baseline pathogen)

Countries

United States

Participant flow

Participants by arm

ArmCount
Sulopenem-etzadroxil/Probenecid
Sulopenem-etzadroxil/probenecid 500 mg PO twice daily for 5 days Sulopenem-Etzadroxil/Probenecid: Treatment of uncomplicated urinary tract infection
787
Ciprofloxacin
Ciprofloxacin 250 mg PO administered twice daily for 3 days Ciprofloxacin: Treatment of uncomplicated urinary tract infection
803
Total1,590

Baseline characteristics

CharacteristicSulopenem-etzadroxil/ProbenecidCiprofloxacinTotal
Age, Continuous49.8 years
STANDARD_DEVIATION 18.8
50.0 years
STANDARD_DEVIATION 19.1
49.9 years
STANDARD_DEVIATION 19
Diabetes93 Participants106 Participants199 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
253 Participants232 Participants485 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
529 Participants570 Participants1099 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
5 Participants1 Participants6 Participants
Region of Enrollment
Russia
195 participants225 participants420 participants
Region of Enrollment
Ukraine
144 participants137 participants281 participants
Region of Enrollment
United States
448 participants441 participants889 participants
Sex: Female, Male
Female
787 Participants803 Participants1590 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 8330 / 827
other
Total, other adverse events
103 / 83321 / 827
serious
Total, serious adverse events
6 / 8332 / 827

Outcome results

Primary

Percentage of Microbiologic Modified Intent to Treat Resistant (Micro-MITTR) Participants With Overall Success

Overall Success: Clinical Success (resolution of uncomplicated urinary tract infection (uUTI) symptoms present at study entry and no new symptoms) AND Microbiologic success (eradication of the baseline pathogen)

Time frame: Day 12+/-1 day

Population: micro-MITTR population: patients with baseline uropathogen non-susceptible to the comparator ciprofloxacin.

ArmMeasureValue (NUMBER)
Sulopenem-etzadroxil/ProbenecidPercentage of Microbiologic Modified Intent to Treat Resistant (Micro-MITTR) Participants With Overall Success62.6 percentage of participants
CiprofloxacinPercentage of Microbiologic Modified Intent to Treat Resistant (Micro-MITTR) Participants With Overall Success36.0 percentage of participants
Primary

Percentage of Microbiologic Modified Intent to Treat Susceptible (Micro-MITTS) Participants With Overall Success

Overall Success is Clinical Success (resolution of uUTI symptoms present at study entry and no new uUTI symptoms) AND Microbiologic success (eradication of the baseline pathogen)

Time frame: Day 12 +/- 1 day

Population: micro-MITTS population: patients with baseline uropathogen susceptible to the comparator ciprofloxacin.

ArmMeasureValue (NUMBER)
Sulopenem-etzadroxil/ProbenecidPercentage of Microbiologic Modified Intent to Treat Susceptible (Micro-MITTS) Participants With Overall Success66.8 percentage of participants
CiprofloxacinPercentage of Microbiologic Modified Intent to Treat Susceptible (Micro-MITTS) Participants With Overall Success78.6 percentage of participants
Secondary

Percentage of Microbiologic Modified Intent to Treat Resistant (Micro-MITTR) Patients With Microbiologic Success

Microbiologic success is defined as eradication of the baseline pathogen (\<1000 Colony Forming Units (CFU)/mL) at the Test of Cure visit

Time frame: Day 12+/-1 day

Population: micro-MITTR population: patients with baseline uropathogen non-susceptible to the comparator ciprofloxacin.

ArmMeasureValue (NUMBER)
Sulopenem-etzadroxil/ProbenecidPercentage of Microbiologic Modified Intent to Treat Resistant (Micro-MITTR) Patients With Microbiologic Success74.1 percentage of participants
CiprofloxacinPercentage of Microbiologic Modified Intent to Treat Resistant (Micro-MITTR) Patients With Microbiologic Success49.6 percentage of participants
Other Pre-specified

Percentage of Microbiologic Modified Intent to Treat (Micro-MITT) Participants With Overall Success

Overall Success is Clinical Success (resolution of uUTI symptoms present at study entry and no new uUTI symptoms) AND Microbiologic success (eradication of the baseline pathogen)

Time frame: 12 +/- 1 day

Population: micro-MITT population: micro-MITTR and micro-MITTS (ciprofloxacin nonsusceptible and ciprofloxacin susceptible) populations combined.

ArmMeasureValue (NUMBER)
Sulopenem-etzadroxil/ProbenecidPercentage of Microbiologic Modified Intent to Treat (Micro-MITT) Participants With Overall Success65.6 percentage of participants
CiprofloxacinPercentage of Microbiologic Modified Intent to Treat (Micro-MITT) Participants With Overall Success67.9 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026