Comparison of Heparin Types; Efficacy and Safety

May 14, 2012 updated by: McMaster University

Anticoagulant Effect and Reversal of Hepalean Compared With PPC Heparin in Patients Undergoing Cardiopulmonary Bypass: a Pilot Randomized Trial

Heparin, a blood thinner, is used routinely in Open-heart surgery. Do different brands of this drug have differing clinical effects despite both having exactly the same regulation and marketing specifications?

Study Overview

Status

Completed

Study Type

Interventional

Enrollment (Actual)

21

Phase

  • 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 Locations

    • Ontario
      • Hamilton, Ontario, Canada, L8L 2X2
        • Hamilton Health Sciences: Hamilton General Hospital

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • will be undergoing cardiopulmonary bypass for coronary artery disease
  • has provided written informed consent

Exclusion Criteria:

  • Allergy or intolerance to Heparin

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 Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Hepalean Heparin
400 units per kilogram bolus prior to initiation of CPB
Active Comparator: PPC Heparin
400 unit per kilogram bolus prior to initiation of CPB

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Feasibility to conduct a larger trial
Time Frame: pre-cardiopulmonary bypass initiation; peri-operative period (in minutes) to 24 hours post-operatively
Will the pilot show that the pilot's design is feasible with respect to timely patient enrolment, blinding of treatment allocation, study drug dosage requirements and the collection and measurement of study outcomes; ACT of > 450 seconds after initial pre-CPB heparin bolus, dosage of additional heparin (if any) to maintain an ACT of greater than 450 seconds, differences (if any) in coagulation profiles, differences if any in chest tube drainage, differences (if any) in post-operative transfusion requiements
pre-cardiopulmonary bypass initiation; peri-operative period (in minutes) to 24 hours post-operatively

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
ACT after initial dose of heparin
Time Frame: pre-cardiopulmonary bypass initiation; peri-operatively(in seconds)
A dose of 400 units/kgm will be used
pre-cardiopulmonary bypass initiation; peri-operatively(in seconds)
Total Heparin Dose used
Time Frame: pre-cardiopulmonary bypass initiation to termination of cardiopulmonary bypass; peri-operatively(in minutes)
The total dose of heparin needed to maintain an ACT of 480 seconds throught bypass time.
pre-cardiopulmonary bypass initiation to termination of cardiopulmonary bypass; peri-operatively(in minutes)
Coagulation
Time Frame: post-cardiopulmonary inition, at the 45 minute on pump time point; perioperatively to 24 hours post-operatively
aPTT, TCT, anti-Xa and anti IL IIa activity ant TAT levels after initial heparin dose and after 45 minutes on CPB.
post-cardiopulmonary inition, at the 45 minute on pump time point; perioperatively to 24 hours post-operatively

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Kevin H Teoh, MD, Hamilton Health Sciences: Hamilton General Site

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

June 1, 2011

Primary Completion (Actual)

September 1, 2011

Study Completion (Actual)

September 1, 2011

Study Registration Dates

First Submitted

April 26, 2011

First Submitted That Met QC Criteria

April 27, 2011

First Posted (Estimate)

April 28, 2011

Study Record Updates

Last Update Posted (Estimate)

May 15, 2012

Last Update Submitted That Met QC Criteria

May 14, 2012

Last Verified

May 1, 2012

More Information

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.

Clinical Trials on Coronary Artery Disease

Clinical Trials on Hepalean Heparin

Subscribe