The purpose of this study is to evaluate the safety and effectiveness of four oral antibiotic treatment regimens for bacterial infections in patients with chronic bronchitis. The study goals are to demonstrate that 1) levofloxacin 750 mg once daily for three days is no worse than azithromycin 250 mg twice a day for one day and then 250 mg once a day for four more days, and 2) levofloxacin 750 mg once daily for five days is no worse than amoxicillin/ clavulanate (875/125 mg) twice daily for 10 days.

Study Type: Interventional

Study Design: Treatment, Randomized, Double-Blind, Parallel Assignment, Safety/Efficacy Study

This is a randomized, double-blind, multicenter treatment study to evaluate the efficacy and safety of high-dose, short-course oral levofloxacin treatment versus treatment with other oral antibiotics in acute bacterial exacerbation of chronic bronchitis (ABECB). This study evaluates the use of high-dose (750 milligrams) and short-course (3 or 5 days) levofloxacin compared with conventional doses and schedules of other effective antibiotics for controlling acute bacterial infections in patients with chronic bronchitis, The study will divide the 700 patients into two groups--one group with less severe (uncomplicated) chronic bronchitis, and one with more severe (complicated) chronic bronchitis. Patients with uncomplicated disease will receive levofloxacin 750 mg once daily for 3 days or azithromycin 250 mg twice a day for 1 day and then 250 mg once a day for 4 more days. Patients with complicated disease will receive levofloxacin 750 mg once daily for 5 days or amoxicillin/ clavulanate (875/125 mg) twice daily for 10 days. All patients will take study medication orally. Effectiveness will be measured by comparing the patient's signs and symptoms present at the Test-of-Cure Visits (study days 13 - 22) with those observed at the Study Entry Visit. Safety will be evaluated throughout the study on the basis of the occurrence and severity of unexpected and undesirable events as well as by laboratory tests and physical examinations. The hypothesis of the study is that a shorter course (3 days) of 750 mg levofloxacin will be at least as effective and well tolerated as azithromycin for 5 days for uncomplicated ABECB, and that 750 mg of levofloxacin for 5 days will be at least as effective and well tolerated as amoxicillin/ clavulanate for 10 days for curing complicated ABECB cases.

Uncomplicated ABECB: Oral doses of levofloxacin 750 mg once daily for 3 days, or azithromycin 250 mg twice daily on day 1, then 250 mg once daily on days 2 - 5. Complicated ABECB: Oral doses of levofloxacin 750 mg once daily for 5 days, or amoxicillin/clavulante 875/125 mg once daily for 10 days.

Intervention(s) in this Clinical Trial

• Drug: levofloxacin, azithromycin, amoxicillin/clavulanate

Primary Measures

• Clinical response rates based on signs and symptoms at posttherapy visit.

Secondary Measures

• Microbiologic eradication rates at posttherapy visit

Inclusion Criteria:

• History of chronic bronchitis
• Diagnosis of Type-1 or Type-2 acute bacterial exacerbation (worsening) of chronic bronchitis (ABECB) with at least the presence of both increased sputum production and increased sputum purulence with evidence of inflammatory cells
• If female, must be postmenopausal, surgically sterile, or practicing an effective method of birth control

Exclusion Criteria:

• Diagnosis of bronchial asthma
• Allergy or serious adverse reaction to any of the study medications or other antibiotics
• Failed treatment for pneumonia or acute bacterial exacerbation (worsening) of chronic bronchitis ABECB in three months prior to enrollment in the study with any of the study medications or other antibiotics
• Can not tolerate medication taken by mouth

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: N/A

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Lead Sponsor: Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

Overall Clinical Trial Officials and Contacts

Johnson & Johnson Pharmaceutical Research and Development, L.L.C. Clinical Trial Study Director Johnson & Johnson Pharmaceutical Research & Development, L.L.C.  

Information obtained from ClinicalTrials.gov on July 02, 2009

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00042718

Study ID Number: CR002650

ClinicalTrials.gov Identifier: NCT00042718

Health Authority: United States: Food and Drug Administration