Efficacy and Mortality of a Loading Dose of Colistin in Critical Ill Patients

March 12, 2018 updated by: Hospital Barros Luco Trudeau

Clinical and Microbiological Efficacy and Mortality of a Loading Dose of Colistin in Critical Ill Patients

The study hypothesis is that the loading dose of intravenous colistin (6 million of international units) is associated with greater clinical and microbiological efficacy, and reduced mortality of critically ill patients infected by multidrug resistant Gram- negative bacilli, compared to a scheme without loading dose.

Study Overview

Status

Status

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

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

It is a prospective, multicenter, randomized, controlled study to evaluate a scheme with and without a loading dose of 6 million international units of colistin, followed by a maintenance dose of 3 million international units every 8 hours intravenous. The study should be conducted in 3 hospitals in Chile, in critically patients presenting infection by multidrug Gram-negative bacteria and requiring be treated with colistin for at least 48 hours. The objectives of the study are: to evaluate the clinical and microbiological response, and mortality.

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 (Anticipated)

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.
200

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.
  • Phase 4

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Chile
      • Puerto Montt, Chile, 5507798
    • Region Metropolitana
      • Santiago, Region Metropolitana, Chile, 8900085
        • Recruiting
        • Hospital Barros Luco Trudeau
        • Contact:
        • Contact:
        • Sub-Investigator:
          • Ruth Rosales, PharmD
        • Sub-Investigator:
          • Alexis Castro, PharmD
        • Sub-Investigator:
          • Ronald Pauramani, MD
        • Principal Investigator:
          • Loreto Rojas, MD, PhD
        • Sub-Investigator:
          • Jorge Silva, MD
        • Sub-Investigator:
          • Sheyla Jimenez, MD
        • Sub-Investigator:
          • Sofía Palma, MD
        • Sub-Investigator:
          • Carlos Beltrán, MD

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:

  • patient hospitalized in critical care units
  • patient infected by multi drug resistant Gram negative bacteria susceptibly only to colistin
  • source of infection: blood, respiratory, intra abdominal or urinary

Exclusion Criteria:

  • pregnant or breastfeeding patients
  • patient with a history of hypersensitivity to colistin

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: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: TRIPLE

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: loading dose of colistin
Patients will receive a loading dose of colistin (6 million international units) followed by a maintenance dose of 3 million international units of colistin every 8 hours intravenous
Drug: colistin
One arm will receive a loading dose of colistin (6 million international units), and a maintenance dose of 3 million every 8 hours. The other arm will receive a maintenance dose of 3 million international units every 8 hours.
Other Names:
  • colistimethate sodium
  • polymyxin e
ACTIVE_COMPARATOR: without loading dose of colistin
Patients will receive 3 million international units of colistin every 8 hours intravenous
Drug: colistin
One arm will receive a loading dose of colistin (6 million international units), and a maintenance dose of 3 million every 8 hours. The other arm will receive a maintenance dose of 3 million international units every 8 hours.
Other Names:
  • colistimethate sodium
  • polymyxin e

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
Percentage of patients with clinical response to treatment
Time Frame: up to 1 week
remission or reduction of clinical signs of infection
up to 1 week
percentage of patients with microbiological response
Time Frame: up to 1 week
negative culture at the same site where the positive culture was obtained before
up to 1 week
mortality
Time Frame: during their stay in the intensive care unit
the mortality during their stay in the intensive care unit, an expected average of 4 weeks
during their stay in the intensive care unit

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.
Hospital Barros Luco Trudeau

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Fondo Nacional de Desarrollo Científico y Tecnológico, Chile

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: Loreto Rojas, MD, PhD, Hospital Barros Luco Trudeau

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.
April 1, 2014

Primary Completion (ANTICIPATED)

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.
December 1, 2018

Study Completion (ANTICIPATED)

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.
December 1, 2018

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).
April 2, 2014

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.
April 16, 2014

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.
April 21, 2014

Study Record Updates

Last Update Posted (ACTUAL)

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.
March 13, 2018

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.
March 12, 2018

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.
March 1, 2018

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.
  • SA13I20317

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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