A Comparator Study Evaluating Microbiological Resistance and Effects of Alternating Inhaled Antibiotic Therapies

November 5, 2015 updated by: Michelle Howenstine, Indiana University

Comparator Trial Evaluating Microbiological Resistance and Clinical Efficacy in Patients Using Alternation Therapy of Inhaled Antibiotics

This is a pilot study of inhaled antibiotic regimens is a pilot study examining clinical and laboratory endpoints of patients on inhaled antibiotic treatments. We hypothesize that alternation therapy utilizing Cayston and Tobi will inhibit antibiotic resistance and that alternation therapy will result in a decreased incidence of antibiotic resistance to Cystic Fibrosis (CF) microbial isolates. The long term strategic goal is to develop a model biometric system for selecting a patient's optimal inhaled antibiotic regimen by utilizing clinical and microbiological parameters.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

27

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Indiana University

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

Ages Eligible for Study

6 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Primary care clinic

Description

Inclusion Criteria:

  • > or = to 6 years of age
  • Documentation of Cf diagnosis
  • History of PA present in sputum, on a least one occasion, during the 12 months prior to Visit 1.
  • Currently on inhaled antibiotic regiment
  • Must be able to provide written informed consent or assent prior to any study related procedures
  • Ability to expectorate sputum
  • Ability ro perform reproducible pulmonary function test

Exclusion Criteria:

  • Administration of any IV or oral antipseudomonal antibiotic within 28 days prior to Visit 1
  • Any serious or active medical or psychiatric illness, which in the opinion of the investigator, woud interfere with participant treatment, assessment, or compliance with the protocol
  • Current enrollment in an interventional clinical trial

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

Cohorts and Interventions

Group / Cohort
Cayston Only Cohort
This cohort will be on a previously established medication regiment of Cayston inhaled antibiotic alternating regimen every other month.
Tobi Only Cohort
This Cohort will be on a previously established medication regiment that includes Tobi inhaled antibiotic regimen alternating every other month.
Cayston and Tobi Cohort
This Cohort will be on a previously established medication regiment that includes Cayston and Tobi inhaled antibiotic alternating every other month

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Antibiotic Resistance Profiles
Time Frame: Every three months within a 12 month period
The primary endpoint will be a change in the microbial resistance profile of pseudomonas aeruginosa (PA)isolates, change in PA sputum density, minimum inhibitory concentration of aztreonam and tobramycin for PA and the appearance or disappearance of other pathogens.
Every three months within a 12 month period

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Clinical Symptoms
Time Frame: Every 3 months within a 12 month period
Secondary endpoint will be the change in clinical symptoms as assessed by the respiratory symptoms domain of the Cystic Fibrosis Questionnaire -Revised (CFQ-R),changes in pulmonary function Forced Exhaled Volume 1 second (FEV1) and change in frequency of hospitalizations or need for intravenous antibiotics.
Every 3 months within a 12 month period

Collaborators and Investigators

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

Sponsor

Indiana University

Collaborators

Gilead Sciences

Investigators

  • Principal Investigator: Michelle S Howenstine, MD, Indiana University
  • Principal Investigator: Gregory Anderson, PhD, Indiana University

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

March 1, 2011

Primary Completion (Actual)

July 1, 2012

Study Completion (Actual)

October 1, 2015

Study Registration Dates

First Submitted

March 18, 2011

First Submitted That Met QC Criteria

March 18, 2011

First Posted (Estimate)

March 21, 2011

Study Record Updates

Last Update Posted (Estimate)

November 6, 2015

Last Update Submitted That Met QC Criteria

November 5, 2015

Last Verified

November 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • HOWEN-ANDER-001

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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