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A Study of the Safety and Effectiveness of Oral Levofloxacin Compared With Oral Ciprofloxacin in the Treatment of Complicated Urinary Tract Infections

A Multicenter, Double-Blind, Randomized Study To Compare The Safety And Efficacy Of Oral Levofloxacin With That Of Ciprofloxacin HCl In The Treatment Of Complicated Urinary Tract Infections In Adults

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00258089
Enrollment
578
Registered
2005-11-24
Start date
1993-06-30
Completion date
1995-01-31
Last updated
2011-05-23

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

Conditions

Bacteriuria, Neurogenic Bladder, Pyelonephritis, Urinary Tract Infections, Urologic Diseases

Keywords

levofloxacin, urinary tract infections, bacterial infections, bacteriuria, urinary anti-infective agents, urinary infections, quinolones

Brief summary

The purpose of the study is to compare the safety and effectiveness of oral levofloxacin (an antibiotic) with that of oral ciprofloxacin in the treatment of complicated urinary tract infections in adults.

Detailed description

Levofloxacin is an antibacterial agent used for the treatment of a many types of acute infections in adults. This is a randomized, double-blind study of the safety and effectiveness of levofloxacin compared with ciprofloxacin in the treatment of adults with a complicated urinary tract infection. Complicated urinary tract infections include those associated with fever, chills, kidney involvement or anatomic and functional abnormalities of the bladder. Patients in one group are treated with 250 mg of levofloxacin taken once daily for 10 days, and the other group is treated with 500 mg of ciprofloxacin, also an antibacterial agent, taken twice daily for 10 days. Patients are followed for 5 to 9 days after completion of treatment (post-therapy) to assess clinical signs and symptoms of infection. Long-term follow up (4 to 6 weeks after the end of treatment) of those patients who respond to therapy provides further evaluation of clinical signs and symptoms. The primary assessments of effectiveness include the microbiological response (the eradication at post-therapy of the infectious organism identified at the start of the study) and the clinical response (the resolution of signs and symptoms at post-therapy compared with those at the start of the study). An additional assessment of efficacy includes the overall clinical response, which is described as cured, improved, or failed. Safety assessments include the incidence of adverse events throughout the study, clinical laboratory tests (hematology, serum chemistry, and urinalysis) and physical examinations at the start of the study and post-therapy. The study hypothesis is that levofloxacin is at least as effective therapeutically and as well tolerated as ciprofloxacin in the treatment of adults with complicated urinary tract infections. Two levofloxacin 125 mg tablets taken orally once daily (and two placebo tablets taken once daily, 12 hours later) for 10 days; or one ciprofloxacin 500 mg tablet and one placebo tablet taken orally twice daily for 10 days.

Interventions

DRUGLevofloxacin

Sponsors

PriCara, Unit of Ortho-McNeil, Inc.
CollaboratorINDUSTRY
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

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

Inclusion criteria

* Diagnosis of a urinary tract infection with complicating factors such as anatomical or functional abnormalities * capable of taking medication by mouth * previous antibacterial therapy of less than 24 hours, or previous antibacterial therapy of greater than 24 hours that did not eliminate or stabilize the infection.

Exclusion criteria

* Patients having any medical condition that requires antimicrobial therapy to be given intravenously or by hypodermic needle * complete obstruction of any part of the urinary tract * inflammation of the prostate gland * previous allergic or serious adverse reaction to similar antibiotics * pregnant or nursing females, or those lacking adequate contraception.

Design outcomes

Primary

MeasureTime frame
Clinical response, the resolution of signs and symptoms at post-therapy compared with those at the start of study; Microbiological response, the eradication at post-therapy of infectious organism identified at start of study.

Secondary

MeasureTime frame
Overall clinical response (described as cured, improved or failed) at long-term follow up; incidence of adverse events throughout the study; change in clinical laboratory tests and physical examinations from start of study to post-therapy.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026