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Study to Demonstrate the Clinical Efficacy of Levofloxacin in the Treatment of Pneumonia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00253955
Recruitment Status : Completed
First Posted : November 15, 2005
Last Update Posted : November 10, 2008
Information provided by:

Brief Summary:

Primary Objective:

  • The primary objective of the study is to demonstrate the non-inferiority in clinical efficacy at the test of cure (TOC) visit planned 5-7 days after treatment completion of levofloxacin 750 mg once daily (od) in comparison with piperacillin/tazobactam 4 g/500 mg every 8 hours in treating adult patients suffering from mild to moderate hospital-acquired pneumonia.

Secondary Objectives:

The secondary objectives of the study are:

  • To assess the bacteriological efficacy at the test of cure (TOC) visit
  • To assess the clinical and bacteriological efficacy at the end of study (EOS) visit, 28 to 32 days after treatment ends
  • To assess the tolerability of both drugs

Condition or disease Intervention/treatment Phase
Pneumonia Drug: Levofloxacin Drug: Piperacillin/Tazobactam Phase 3

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 460 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open-Label, Multicenter, Multinational, Centrally Randomized, Two-Arm Parallel-Group Study to Demonstrate the Non-Inferiority in Clinical Efficacy of Levofloxacin 750mg od in Comparison With Piperacillin/Tazobactam 4g/500mg Every 8 Hours in the Treatment of Mild to Moderate Hospital-Acquired Pneumonia Adult Patients in Both General Wards and ICU (Intensive Care Unit)
Study Start Date : June 2003
Actual Primary Completion Date : May 2007
Actual Study Completion Date : November 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Pneumonia

Arm Intervention/treatment
Experimental: 1 Drug: Levofloxacin
Active Comparator: 2 Drug: Piperacillin/Tazobactam

Primary Outcome Measures :
  1. Clinical efficacy data:-Infection related signs and symptoms-Chest X-ray [ Time Frame: from the start to the end of the study ]

Secondary Outcome Measures :
  1. Safety data: Clinical adverse event reporting, including SAE reporting [ Time Frame: From the inform consent signed until the end of the study ]
  2. Bacteriological efficacy data:-Cultures and susceptibility testing [ Time Frame: from the start to the end of the study ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

Subjects meeting all of the following criteria will be considered for enrollment into the study:

  • General ward or ICU hospitalized subject.
  • Subject with diagnosis of hospital-acquired pneumonia of presumed bacterial origin based upon:

    • Infection developing after at least 72 hours following hospital admission and
    • At least three of the four following signs:

      • Fever, defined as body temperature (oral or tympanic temperature ≥ 38°C or rectal temperature ≥ 38.5°C)
      • Purulent tracheal sputum production/secretion or change in sputum character
      • Total peripheral white blood cell (WBC) count > 12 G/L or < 4.5 G/L or 15% immature neutrophils (bands), regardless of total peripheral WBC count
      • Increased plasma or serum C reactive protein (CRP) level as shown by a level of at least twice the upper boundary of the hospital normal range and
      • Chest X-ray findings (anterior posterior [AP] or posterior anterior [PA], if possible lateral view) in agreement with the clinical diagnosis of bacterial pneumonia, i.e. appearance of new, progressive pulmonary infiltrate(s) attributable to infectious etiology.
  • Subjects are required to have specimens collected for microbiological documentation within 24 hours prior to enrolment. Specimens should include at least one invasive or noninvasive lower respiratory tract specimen for Gram stain, culture and susceptibility testing, and at least 2 venous blood samples for culture and susceptibility testing.

Exclusion Criteria:

Subjects presenting with any of the following will not be included in the study:

Related to the hospital-acquired pneumonia (HAP):

  • Suspected viral or fungal pneumonia, or HAP strongly suspected to be caused by MRSA (methicillin-resistant Staphylococcus aureus) or organisms responsible for atypical pneumonia, such as Chlamydia pneumoniae, Legionella pneumophila or Mycoplasma pneumoniae
  • Patients with severe HAP, defined as presence of at least one of the following:

    • In previously non-ventilated patients: need for mechanical ventilation consequently to HAP
    • In previously ventilated patients: oxygenation rate defined by partial pressure of oxygen in arterial blood (PaO2)/fraction of inspired oxygen (FiO2) < 200
  • Radiographic findings compatible with severe HAP, i.e. showing either:

    • Rapid progression (e.g. increase in the size of the opacity by ≥ 50% within 48 hours of the current evaluation)
    • OR multilobar pneumonia (> 2 lobes) or involvement of both lungs
    • OR cavitation of a lung infiltrate
  • Evidence of severe sepsis with hypotension and/or end-organ dysfunction, i.e.:

    • Shock commonly evidenced by: systolic blood pressure < 90 mmHg or diastolic blood pressure < 60 mmHg
    • In absence of previous vasopressors use, vasopressors use (except for fluid replacement) for more than 4 hours
    • In presence of vasopressors use, increase in vasopressors use (except for fluid replacement) for more than 4 hours
    • OR marked reduction in urine output (unless another explanation is available), i.e. in 1 hour: < 20 mL or in 4 hours: < 80 mL
    • OR acute renal failure requiring dialysis
    • OR profound alteration of mental status, i.e. marked lethargy/stupor/coma

Related to medical history/concomitant conditions:

  • Patients with any concomitant pulmonary diseases, conditions or complications that could confound the interpretation or evaluation of drug efficacy or safety, including severe bronchiectases, cystic fibrosis, active pulmonary tuberculosis or acute pulmonary embolism, empyema, lung abscess or extra pulmonary extension of the LRTI (lower respiratory tract infection), such as meningitis, septic arthritis, endocarditis, known bronchial obstruction due to tumor or foreign body or with a history of post-obstructive pneumonia (this does not exclude patients with COPD [chronic obstructive pulmonary disease]), primary lung cancer or another malignancy metastatic to the lungs, and/or requiring chemotherapeutic treatment (for this or other reasons)
  • Patients with any known or suspected bacterial infection other than the disease under investigation which will require concomitant use of a systemic antimicrobial agent other than the study drug allocated
  • Patients who have received previous systemic antibiotics longer than 24 hours within 72 hours prior to the enrolment for the same episode of HAP
  • Body weight > 95 kg
  • Patients with impaired renal function, as shown by creatinine clearance < 20 mL/min
  • Hepatic cirrhosis with Child-Pugh score > or = B
  • Immuno-compromised patients, such as those presenting with either:

    • Known HIV infection with a CD4 + T-lymphocyte count < 0.2 G/L (i.e. < 200 cells/mm3)
    • Neutropenia - neutrophil count < 1.0 G/I (i.e. < 1000/mm3)
    • Patients on maintenance (≥ 3 months) corticosteroid therapy (> 20 mg/day equivalent prednisolone)

Related to study drugs:

  • Patients with a microbiologically documented infection with a pathogen known prior to inclusion to be resistant to at least one of the study medications
  • Patients with known or suspected hypersensitivity to, or known or suspected serious adverse reaction to levofloxacin and/or piperacillin/tazobactam and/or any other quinolones, beta-lactamase inhibitors, penicillins and/or to cephalosporins
  • Patients with epilepsy or a history of epilepsy or with predisposition to seizures (e.g. patients with pre-existing central nervous system lesions)
  • Patients with known or suspected history of tendon disorders unless a potential relationship to fluoroquinolone administration has been excluded.
  • Patients with latent or actual known defects in glucose-6-phosphate dehydrogenase activity


  • Women who are breast-feeding, or are failing to use adequate contraception; for example, systemic hormones (birth control pills, implant), intrauterine device or barrier method (diaphragm with intravaginal spermicide, cervical cap, male or female condom), or are pregnant, as demonstrated by urine or serum pregnancy tests carried out before exposure to study medication or the start of any study procedure that could pose a risk to the foetus
  • Patients with a recent (within three months prior to study entry) history of drug or alcohol abuse
  • Patients who have received any investigational drug within one month prior to study entry.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00253955

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Vienna, Austria
Brussels, Belgium
Czech Republic
Prague, Czech Republic
Paris, France
Berlin, Germany
Athens, Greece
Guatemala, Guatemala
Milan, Italy
Beirut, Lebanon
Mexico, Mexico
Gouda, Netherlands
Bucharest, Romania
Russian Federation
Moscow, Russian Federation
South Africa
Johannesburg, South Africa
Barcelona, Spain
Istanbul, Turkey
Caracas, Venezuela
Sponsors and Collaborators
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Study Director: Gilles Perdriset Sanofi

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Responsible Party: Medical Affairs Study Director, sanofi-aventis Identifier: NCT00253955    
Other Study ID Numbers: HR355_3035
First Posted: November 15, 2005    Key Record Dates
Last Update Posted: November 10, 2008
Last Verified: November 2008
Additional relevant MeSH terms:
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Lung Diseases
Respiratory Tract Diseases
Respiratory Tract Infections
Piperacillin, Tazobactam Drug Combination
Anti-Infective Agents, Urinary
Anti-Infective Agents
Renal Agents
Anti-Bacterial Agents
Topoisomerase II Inhibitors
Topoisomerase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Cytochrome P-450 CYP1A2 Inhibitors
Cytochrome P-450 Enzyme Inhibitors
beta-Lactamase Inhibitors