A Trial To Evaluate Two Antibiotics For The Treatment Of Acute Exacerbation Of Chronic Bronchitis (AECB)

• Other: Moxifloxacin Placebo
  
  1 capsule once daily for 5 days
• Drug: Moxifloxacin
  
  1 X 400mg capsule once daily for 5 days
• Other: Azithromycin SR Placebo
  
  single dose, oral.
• Drug: Azithromycin SR
  
  single dose 2.0 g oral

• Experimental: 1
  
  Interventions:
  

  • Other: Azithromycin SR Placebo
  • Drug: Azithromycin SR
• Active Comparator: 2
  
  Interventions:
  

  • Other: Moxifloxacin Placebo
  • Drug: Moxifloxacin

Inclusion Criteria:

• Diagnosis of chronic bronchitis (chronic cough and sputum production on most days for three consecutive months for more than two consecutive years) and clinical evidence of AECB as demonstrated by both the following symptoms:
• Production of purulent sputum as defined by Gram stained sputum specimen
• Presence of all of the following:
• Increased sputum production
• Increased dyspnea
• Increased cough
• At least two exacerbations of AECB in the past 12 months
• Documented FEV1 less than 80% of predicted

Exclusion Criteria:

• A chest radiograph consistent with pneumonia
• Treatment with any systemic antibiotic within the twenty-one days prior to study entry or those with a chance of receiving other systemic antibiotics during study participation