Efficacy of Urokinase Containing Locking Solutions for Thrombotic Dysfunction of Tunneled Hemodialysis Catheters

May 11, 2016 updated by: Universitair Ziekenhuis Brussel

Efficacy of Urokinase Containing Locking Solutions for Thrombotic Dysfunction of Tunneled Cuffed Catheters : a Single-center Retrospective Study

Thrombotic dysfunction is a common complication of tunneled cuffed catheters (TCC) leading to inadequate dialysis dose, need to catheter replacement with as consequence progressive exclusion of vascular sites. Thrombolytic agent can be used as therapeutic locking solution to dissolve the clotting formed in of around the catheter lumen. There are few studies on the optimal approach of TCC-related thrombosis with thrombolytic containing locking solution (dose, number of administrations, timing of administration - intra or interdialytic use). The primary objective of this retrospective study was to compare the efficacy of inter versus intradialytic Urokinase containing locking solution on restoration of the TCC blood flow. The investigators also assess the question of multiple administrations of Urokinase are more efficient than one single administration

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.

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.
Observational

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.
148

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

  • Belgium
    • Brussels
      • Jette, Brussels, Belgium, 1090
        • Universitair Ziekenhuis Brussel

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 99 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Incident and prevalent patients on hemodialysis, more than 18y old, receiving dialysis via a tunneled cuffed catheter between 1st May 2010 and 31st October 2014.

Description

Inclusion Criteria:

  • Hemodialysis patients over 18 years old, receiving hemodialysis between 1st May 2010 and 31st October 2014 via a tunneled cuffed catheter at the Hemodialysis Unit of Universitair Ziekenhuis Brussel Hospital.

Exclusion Criteria:

  • Patients younger than 18 years old
  • Patients with a temporary dialysis catheter
  • Patients who never received a tunneled hemodialysis catheter in this period
  • Patients who didn't have a medical file at the Universitair Ziekenhuis Brussel Hospital

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

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
Chronic hemodialysis patients with a tunneled cuffed catheter
In case of thrombotic dysfunction of the dialysis catheter : administration of Urokinase (100 000 units in total) as locking solution in the dead space of the catheter lumen, interdialytic (between two dialysis sessions) or intradialytic (during the dialysis in case of complete obstruction of the dialysis catheter)
Device: Urokinase locking solution
On basis of the prescription : one single administration of thrombolytic locking solution versus multiple administrations (during 3 consecutive dialysis sessions)
Other Names:
  • Actosolv

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
Change in catheter blood flow (expressed in ml/min) after Urokinase-containing locking solution
Time Frame: up to 54 months
Comparison of catheter blood flow measurement before and after Urokinase locking solution administration according to the type of Urokinase prescription (inter- versus intra-dialytic use, one- single versus multiple administrations)
up to 54 months
Change of pump pressures (expressed in mmHg) after Urokinase-containing locking solution
Time Frame: up to 54 months
Comparison of pump pressures measurement before and after Urokinase locking solution administration according to the type of prescription of Urokinase containing locking solution (inter versus intra-dialytic, one single use versus multiple administrations)
up to 54 months

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.
Universitair Ziekenhuis Brussel

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: Florence Bonkain, M.D., Universitair Ziekenhuis Brussel

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.
May 1, 2010

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.
October 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.
November 1, 2014

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 24, 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.
May 11, 2016

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.
May 12, 2016

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.
May 12, 2016

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.
May 11, 2016

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.
December 1, 2015

More Information

Terms related to this study

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.
  • 1 (Mobile Health and Wellness Program)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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