Randomized Trial of Ciprofloxacin Versus Observation for Men With Elevated Prostate Specific Antigen (PSA)

This study has been terminated.
(Combination of futility analysis and poor accrual)
Information provided by (Responsible Party):
University of Chicago
ClinicalTrials.gov Identifier:
First received: February 9, 2009
Last updated: July 7, 2014
Last verified: July 2014
The purpose of this study is to assess the impact of an empiric course of antibiotics for men with an elevated prostate-specific antigen (PSA) level.

Condition Intervention Phase
Elevated Prostate Specific Antigen
Drug: Ciprofloxacin
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Randomized, Multi-Institution Trial of Ciprofloxacin Versus Observation for Men With an Elevated Prostate Specific Antigen (PSA)

Resource links provided by NLM:

Further study details as provided by University of Chicago:

Primary Outcome Measures:
  • Change in PSA Level From Baseline [ Time Frame: At baseline and 21-45 days after randomization ] [ Designated as safety issue: No ]

    To assess the impact of ciprofloxacin on the change in PSA from baseline/randomization to prostate biopsy which occurs 21-45 days after randomization.

    Due to the skewness of the data, the log transformation was used and the outcome used was the log(PSA level post-treatment, at time of biopsy) - log(PSA level baseline).

Secondary Outcome Measures:
  • Overall Infectious Complication Rate Following Prostate Biopsy [ Time Frame: Within 24 hours of biopsy ] [ Designated as safety issue: No ]
    To assess the impact of ciprofloxacin on the overall infectious complication rate following prostate biopsy

Enrollment: 85
Study Start Date: January 2009
Study Completion Date: May 2011
Primary Completion Date: May 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: Observation
Observation only for 2 weeks
Active Comparator: Antibiotic
Ciprofloxacin 500 mg twice daily for 2 weeks
Drug: Ciprofloxacin
Other Name: Cipro

Detailed Description:

Study Objectives:

Primary Objective: To assess the impact of ciprofloxacin on the change in PSA from baseline/randomization to prostate biopsy

Secondary Objective: To assess the impact of ciprofloxacin on the overall infectious complications following prostate biopsy

The impact of observation versus ciprofloxacin on PSA levels will be assessed by PSA change from baseline. The first PSA measurement will be at the study entry and randomization. The second PSA measurement will be immediately prior to prostate biopsy, which will occur 21-45 days following randomization.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Men 18 yrs. or older
  • An elevated PSA (>2.5 ng/ml) and normal digital rectal exam
  • Have elected to proceed with a diagnostic 12-core prostate biopsy

Exclusion Criteria:

  • Previous prostate biopsy
  • History of prostate cancer
  • Urinary tract infections or prostatitis within one year of study entry
  • antibiotic use within one month prior to PSA level
  • pyuria or bacteruria on urinalysis
  • allergy to fluoroquinolones
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00840294

United States, Illinois
The University of Chicago
Chicago, Illinois, United States, 60637
Sponsors and Collaborators
University of Chicago
Principal Investigator: Scott Eggener, MD University of Chicago
  More Information

Responsible Party: University of Chicago
ClinicalTrials.gov Identifier: NCT00840294     History of Changes
Other Study ID Numbers: 16368B 
Study First Received: February 9, 2009
Results First Received: July 7, 2014
Last Updated: July 7, 2014
Health Authority: United States: Institutional Review Board

Keywords provided by University of Chicago:
Men with Elevated PSA

Additional relevant MeSH terms:
Anti-Bacterial Agents
Anti-Infective Agents
Antineoplastic Agents
Cytochrome P-450 CYP1A2 Inhibitors
Cytochrome P-450 Enzyme Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Topoisomerase II Inhibitors
Topoisomerase Inhibitors

ClinicalTrials.gov processed this record on May 26, 2016