Prospective Comparative Study About Treatment of Asymptomatic Bacteriuria in Kidney Transplant Recipients.

February 20, 2015 updated by: Francisco López Medrano, López-Medrano, Francisco, M.D.

Effect of Systematic Search and Antimicrobial Treatment of Asymptomatic Bacteriuria in Kidney Transplant Recipients in the Incidence of Acute Pyelonephritis: a Pragmatic Prospective Randomized Controlled Study.

Antimicrobial treatment of asymptomatic bacteriuria (AB) in kidney transplant recipients (KTR) is controversial. The investigators performed a comparative, parallel-group, randomized, open-label study to assess, in a real clinical setting, the feasibility of and benefit derived from systematic search and antimicrobial treatment of all episodes of AB.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

All patients undergoing KT between January 2011 and December 2013 in a tertiary-care center with an active transplantation program were systematically searched for AB within the first 2 years after transplantation on a regular basis. During the first 2 months after transplantation all episodes of AB were treated. Thereafter, patients were assigned, according to a computer-generated randomization sequence, to group A (systematic antimicrobial treatment of all episodes of AB) or group B (no treatment). Treatment was chosen according to the results of the urine culture.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
112

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult patients developing asymptomatic bacteriuria beyond 2 months after transplantation.

Exclusion Criteria:

  • <18 years old
  • Pregnant women
  • Kidney-pancreas transplantation
  • Double J stent catheterization at the momento of randomization
  • Permanent vesical catheter

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: A: Antibiotic adjusted to antibiogram
A course of 3-14 days of antimicrobial treatment, according to the antibiogram results, will be prescribed for every episode of asymptomatic bacteriuria beyond 2 months after transplantation and during the first 2 years after transplantation
Other: Antibiotic adjusted to antibiogram
A course of 3-14 days of antimicrobial treatment, according to the antibiogram results, will be prescribed for every episode of asymptomatic bacteriuria during the first 2 years after transplantation.
Other Names:
  • Anti-infective agents
No Intervention: B: no treatment
No treatment of any episode of asymptomatic bacteriuria beyond 2 months after transplantation in kidney transplant recipients.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Incidence of Pyelonephritis
Time Frame: 2 years after transplantation
The number of patients that develope pyelonephritis in the first 2 years after transplantation in each group, divided by the number of patients allocated in each group at randomization.
2 years after transplantation

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Incidence of lower tract urinary infection
Time Frame: 2 years after transplantation
The number of patients that develope lower tract urinary infection in the first 2 years after transplantation in each group, divided by the number of patients allocated in each group at randomization.
2 years after transplantation
Incidence of Clostridium difficile infection
Time Frame: 2 years after transplantation
The number of patients that develope Clostridium difficile infection in the first 2 years after transplantation in each group, divided by the number of patients allocated in each group at randomization.
2 years after transplantation
Incidence of multidrug resistant bacteria colonization/infection
Time Frame: 2 years after transplantation
The number of patients that develope multidrug resistant bacteria colonization/infection in the first 2 years after transplantation in each group, divided by the number of patients allocated in each group at randomization.
2 years after transplantation
Long-term graft function
Time Frame: At 1 year and 2 years after transplantation
Long-term graft function measured by average serum creatinine at several points until the end of follow-up.
At 1 year and 2 years after transplantation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
López-Medrano, Francisco, M.D.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Francisco López-Medrano, MD,PhD, López-Medrano, Francisco, M.D.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2011

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 13, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 20, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 26, 2015

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 26, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 20, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ABTxR-H12O

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