Official Title: “A Multicenter, Double-Blind, Phase 3B Study to Compare the Safety and Clinical Efficacy of Levofloxacin in 750mg for 2 Weeks and Levofloxacin 750mg for 3 Weeks to That of Levofloxacin 500mg for 4 Weeks in the Treatment of Chronic Prostatitis”

The purpose of this study is to compare the safety and effectiveness of levofloxacin 750 mg for 2 weeks or 750 mg for 3 weeks, compared to levofloxacin 500 mg for 4 weeks in the treatment of chronic prostatitis.

Study Type: Interventional

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

The optimal duration of treatment for chronic prostatitis remains unclear. Historically, therapy for chronic prostatitis with other classes of antibacterials resulted in poor outcomes and prolonged time taking the medication. Levofloxacin belongs to the quinolone class of antibacterials and has been used to treat chronic prostatitis with 500mg of levofloxacin taken orally once a day for 4 weeks. This multicenter, double-blind (neither the patient nor the physician knows whether drug or placebo is being taken, or at what dosage), randomized (patients are assigned different treatments based on chance) study is designed to see if giving levofloxacin at a higher dose for shorter periods of time is safe and effective in treating chronic prostatitis. Safety analyses will involve the examination of the incidence, severity, and type of adverse events and changes in physical findings including vital signs and clinical laboratory tests.

Patients will receive one of the following three dosing options: levofloxacin 750 mg orally administered once-a-day for 2 weeks followed by placebo once-a-day for two weeks for a total of 4 weeks, or levofloxacin 750 mg orally once-a-day for 3 weeks followed by placebo once-a-day for one week for a total of 4 weeks, or levofloxacin 500 mg orally once-a-day for 4 weeks.

Intervention(s) in this Clinical Trial

• Drug: levofloxacin

Primary Measures

• The primary efficacy endpoint is clinical success, defined as cured or improved at the Post-therapy Visit, summarized by treatment group. Response is based on the resolution of signs and symptoms at post-therapy.

Secondary Measures

• Time to symptom relief, relapse rates, and domain scores from the NIH-Chronic Prostatitis Symptom Index and the Daily Symptom Index will be collected during the course of the study and evaluated at study end.

Inclusion Criteria:

• Males 40 years of age or older
• A clinical diagnosis of chronic prostatitis as evidenced by the following two criteria: 1. Clinical signs and symptoms of prostatitis including a soft, tender prostate without noticeable nodularity with one or more of the following signs or symptoms: painful or difficult urination, suprapubic discomfort, painful ejaculation, low back pain, perineal discomfort, urinary frequency, urinary urgency or hesitancy, decreased urinary stream, urinary retention, pain on digital rectal examination, perineal tenderness or pain, fever, chills. 2. A history of chronic prostatitis as defined as: symptomatic prostatitis - a clinical diagnosis of prostatitis having been made for at least one previous episode that lasted four weeks, or two or more episodes during the previous twelve months

Exclusion Criteria:

• Any condition which may interfere with the evaluation of study drug including transurethral prostatectomy within six months of enrollment, the presence of a permanent transurethral catheter or a history of cystostomy or nephrostomy
• Taking hormone therapy
• Known prostatic carcinoma
• Allergy to levofloxacin, ofloxacin, ciprofloxacin, or other members of the quinolone class of antibacterials

Gender Eligibility for this Clinical Trial: Male

Minimum Age for this Clinical Trial: 40 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 August 20, 2008

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00402688

Study ID Number: CR012103

ClinicalTrials.gov Identifier: NCT00402688

Health Authority: United States: Food and Drug Administration

For FDA Approved Product labeling, refer to the following link:http://www.accessdata.fda.gov/scripts/cder/drugsatfda/

Additional information is provided at the following link;http://dailymed.nlm.nih.gov/dailymed/about.cfm

For FDA Safety Alerts and Recalls refer to the following link:www.fda.gov/MEDWATCH/safety.htm