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Efficacy And Safety Of Unfractionated Heparin In Patients With Cardiovascular Surgery Using Cardiopulmonary Bypass

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified January 2011 by Azidus Brasil.
Recruitment status was:  Recruiting
Information provided by:
Azidus Brasil Identifier:
First received: February 19, 2010
Last updated: January 27, 2011
Last verified: January 2011
The primary objective of this study is to verify, through a randomized, blinded, parallel clinical trial, the efficacy of bovine heparin from Bergamo Laboratory ACTIPARIN ® product when compared to porcine heparin APP Pharmaceutical in patients undergoing surgery cardiovascular disease and who require cardiopulmonary bypass, through the control of hemostasis during and after surgery, based on measurements of markers of coagulation ACT, aPTT, anti-Xa heparin levels and the excessive blood loss (hemorrhage) after the end of surgery.

Condition Intervention Phase
Prevention of Venous Thromboembolism Biological: bovine heparin Biological: Porcine heparin Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Investigator)
Primary Purpose: Treatment
Official Title: Randomized, Blind and Comparative Clinical Trial of Efficacy and Security of Unfractioned Heparin Sodium of Bovine Origin in Patients Submitted to Cardiovascular Surgery With Cardiopulmonary Bypass

Resource links provided by NLM:

Further study details as provided by Azidus Brasil:

Primary Outcome Measures:
  • Coagulometric parameters markers heparin activity: ACT, APTT and Anti - Xa [ Time Frame: (T0) Pre heparintion; (T1) Top of extracorporeal; (T2) Intraoperative period; (T3) End bypass; (T4) Postoperative ]

Secondary Outcome Measures:
  • Value of the total dose of heparin used, the activity and adequate reversal with the use of protamine. [ Time Frame: (T0) Pre heparintion; (T1) Top of extracorporeal; (T2) Intraoperative period; (T3) End bypass; (T4) Postoperative ]

Estimated Enrollment: 104
Study Start Date: April 2010
Estimated Study Completion Date: November 2011
Estimated Primary Completion Date: August 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: heparin of bovine origin
Laboratory Bergamo Ltda. 5.000UI/mL bottle with 5mL
Biological: bovine heparin
5.000UI/mL bottle with 5mL
Active Comparator: heparin of porcine origin
APP Pharmaceuticals
Biological: Porcine heparin
5000 USP Heparin Units / mL vial with 10 mL vial


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients who agree with all aspects of the study and sign the FICT;
  • Patients of both sexes;
  • Patients over the age of 18 years;
  • Patients with indication for cardiac surgery requiring cardiopulmonary bypass.

Exclusion Criteria:

  • Patients with hematological disorders that compromise the surgical outcome (eg, myeloproliferative disorders, anemia, Hb <11.0 g / dL, platelets <100,000 mm3);
  • Patients with disorders of hemostasis (INR> 1.40) (APTTr> 1.40);
  • Patients with renal impairment (creatinine> 1.50);
  • Patients with deep hyperthermia;
  • Liver disease (AST and ALT> 2 times that of the reference value);
  • Patients with a history of allergy to heparin or protamine;
  • Patients with a history of heparin-induced thrombocytopenia;
  • infection (eg endocarditis, septicemia and pneumonia);
  • Reoperations;
  • Use of antiplatelet agents (clopidogrel and ticlopidine) for less than 7 days;
  • Use of aspirin for less than 5 days;
  • Use of heparin, low molecular weight less than 24 hours;
  • Use of unfractionated heparin for less than 12 hours.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01072747

Contact: Alexandre Frederico, Physician 55 19 3829-3822

LAL Clinica Pesquisa e Desenvolvimento Ltda Recruiting
Valinhos, SP, Brazil, 13270000
Contact: Alexandre Frederico, Physician    55 19 3829-3822   
Sponsors and Collaborators
Azidus Brasil
  More Information

Responsible Party: Dr. Alexandre Frederico, LAL Clinica Identifier: NCT01072747     History of Changes
Other Study ID Numbers: HEPSBCCV1109BOV_BER
Study First Received: February 19, 2010
Last Updated: January 27, 2011

Additional relevant MeSH terms:
Venous Thromboembolism
Embolism and Thrombosis
Vascular Diseases
Cardiovascular Diseases
Calcium heparin
Fibrinolytic Agents
Fibrin Modulating Agents
Molecular Mechanisms of Pharmacological Action processed this record on September 19, 2017