Efficacy of Polymyxin B Against Infections Caused by Extensively Drug-resistant (XDR) Gram-Negative Bacteria (XDR)

August 31, 2015 updated by: Mahidol University
The objective of the study is to evaluate the efficacy of Polymyxin B for treatment Gram negative bacterial infection. The hypothesis of study is Polymyxin B would be the new antibacterial agents for Thai Gram negative infected patients in case of desirable outcomes and minimal side effects.

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

  • Investigator is notified by doctors who take care of gram negative infected patients.
  • Investigator inform patient or their relatives about all topics in project, eligible criteria, method, material and monitoring treatment.
  • After patient or their relatives are appreciated to join this project, investigator collect data in case record form;electronics form, then implement the drug.
  • Duration of treatment is determined by site and severity of infection, approximately 7-14 days.
  • Sample size calculation, by prevalence formula, we estimate the mortality rate about 50 %, deviation 10 %,and 2-sided 95% Confidence interval, therefore,97 persons
  • We estimate gather data about 100 persons.
  • Statistical descriptive analysis for descriptive data.
  • During the study is performing, all unexpected adverse event definitely report to Siriraj institutional Review Board immediately, in addition to subjects or their relatives.

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.
100

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

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 to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age 18-75 year-old
  • The infection caused by carbapenem-resistant (CR) Enterobacteriaceae, CR P.aeruginosa or CR A. baumannii which susceptible to colistin
  • The duration of treatment approximately between 7-14 days
  • Kidney function, according to Kidney Disease Improving Global Outcomes (KDIGO) classification, should less than stage 4 and no replacement therapy in all modality.
  • The patients are anticipated to live more than 48 hrs after participation.
  • In case of Colistin administration beforehand, it should not exceed 24 hrs.
  • All of participants should be willing to join this project.

Exclusion Criteria:

  • Pregnancy and lactation
  • End stage renal disease who take renal replacement therapy
  • Any type of Neuromuscular disease
  • Body mass index exceed 30
  • Infection that require treatment more than 14 days

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: N/A
  • Interventional Model: Single Group 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: Polymyxin B
Polymyxin B 1.5-2.5 mg/kg/day intravenous q 12 hrs duration 7-14 days
Drug: Polymyxin B
administrate drug by 0.75-1.25 mg/kg/dose intravenously q 12 hrs both saline and dextrose solution can be dissolved duration 7-14 days
Other Names:
  • X-Gen Phamaceuticals, USA Polymyxin B

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
mortality rate
Time Frame: participants will be followed for the duration of hospital stay, an expected average of 4 weeks
mortality rate of gram negative bacteria infected patients receiving Polymyxin B at day 28 after enrollment
participants will be followed for the duration of hospital stay, an expected average of 4 weeks

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
adverse drug reactions
Time Frame: participants will be followed for the duration of hospital stay, an expected average of 4 weeks
we assess adverse drug reactions in 2 aspects; nephrotoxicity and neurotoxicity
participants will be followed for the duration of hospital stay, an expected average of 4 weeks
microbiological clearance
Time Frame: participants will be followed for the duration of hospital stay, an expected average of 4 weeks
we perform culture and staining to assess bacterial clearance after apply the study drug every 3 days until culture is negative
participants will be followed for the duration of hospital stay, an expected average of 4 weeks
Peak Plasma Concentration (Cmax) of polymyxin B
Time Frame: participants will be followed for the duration of hospital stay, an expected average of 4 weeks
we do the blood test for drug level at before the third date dose then 1,2,4 hours after administration of the polymixin B and before the fourth dose.
participants will be followed for the duration of hospital stay, an expected average of 4 weeks

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.
Mahidol University

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: Visanu Thamlikitkul, MD, Infectious disease and tropical medicine, Siriraj hospital

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

Helpful Links

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.
December 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.
November 1, 2015

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.
November 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).
December 15, 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.
December 26, 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.
December 31, 2014

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.
September 1, 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.
August 31, 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.
August 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.
  • 568/2557(EC4)

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