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CompletedNCT00258089Updated May 23, 2011

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

A Phase 3 interventional study of Levofloxacin in Urinary Tract Infections, Bacteriuria and Urologic Diseases, sponsored by Johnson & Johnson Pharmaceutical Research & Development, L.L.C.. Completed. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2011-05-23.

Sponsored by Johnson & Johnson Pharmaceutical Research & Development, L.L.C. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
578
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study 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.

Read the 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.

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Conditions studied

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

Keywords

  • levofloxacin
  • urinary tract infections
  • bacterial infections
  • bacteriuria
  • urinary anti-infective agents
  • urinary infections
  • quinolones
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In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's enrollment of 578 is above the median of 120 across 4,200 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

Johnson & Johnson Pharmaceutical Research & Development, L.L.C. is the lead sponsor of 458 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts 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

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.
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double
Enrollment
578 participants (actual)

Interventions

  • DrugLevofloxacin
06

What researchers measure

Primary outcomes

  1. 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 outcomes

  1. 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.

07

Study locations

No study locations are listed for this record.

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References and documents

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 23, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00258089
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Collaborators
PriCara, Unit of Ortho-McNeil, Inc.
First posted
Nov 24, 2005
Start date
Jun 1993
Completion
Jan 1995
Last update
May 23, 2011

Study contacts

Johnson & Johnson Pharmaceutical Research & Development, L.L. C. Clinical Trial
study director · Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Nov 2010. You cannot join it, but the record below documents what was studied.

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