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Vascular Sealant Study (VSS)
This study is currently recruiting participants.
Verified by Georgetown University, April 2007
First Received: February 8, 2008   Last Updated: February 19, 2008   History of Changes
Sponsors and Collaborators: Georgetown University
Covidien
Information provided by: Georgetown University
ClinicalTrials.gov Identifier: NCT00618358
  Purpose

Study Objective:To evaluate the safety and effectiveness of the Vascular Sealant compared with Gelfoam/Thrombin when used to seal bleeding anastomotic suture lines in patients undergoing vascular reconstructive surgery requiring placement of a PTFE graft (including extra-anatomic, infrainguinal bypass and arteriovenous (AV) access procedures).

Study Design: The study is a multi-center, prospective, randomized controlled clinical trial that will compare two methods for treating anastomotic leakage (bleeding). All subjects (n =151) will be randomized at a 3:1 ratio to receive either the investigational treatment (Vascular Sealant) or the control treatment (Gelfoam/Thrombin). Up to two (2) treatment sites may be evaluated for each subject. Subjects will be stratified by type of graft procedure: AV access graft or extra-anatomic and infra-inguinal graft. A minimum of 60 patients, and a maximum of 91 patients, will be enrolled in each stratum. Treatment randomization will be blocked by center and type of graft procedure (e.g., bypass or AV grafts). All subjects will undergo preoperative screening to determine eligibility and will be evaluated intraoperatively, at discharge or within 7 days of surgery, and 30 days post-procedure to monitor for hematologic disturbances, hemorrhagic events, wound complications and other potential acute post-operative adverse events.

Up to ten (10) investigational sites will participate in the study. Enrollment is expected to take approximately 8 months for an anticipated duration of the clinical investigation of approximately 9 to 10 months.

The primary objective of this trial is to demonstrate non-inferiority of the Vascular Sealant to Gelfoam/Thrombin when used to seal anastomotic suture lines in patients undergoing placement of PTFE vascular grafts (including extra-anatomic, infrainguinal bypass and arteriovenous access procedures).


Condition Intervention Phase
Arteriovenous Access Grafts or Extra-Anatomic and Infra-Inguinal Grafts
Device: Vascular Sealant System
Phase I

MedlinePlus related topics: Anatomy Surgery
U.S. FDA Resources
Study Type: Interventional
Study Design: Treatment, Randomized, Single Blind (Subject), Parallel Assignment
Official Title: A Prospective, Randomized, Multi-Center, Two Arm Study to Evaluate the Safety and Effectiveness of the Vascular Sealant System Compared With Gelfoam/Thrombin for Control of Anastomosis Suture Line Bleeding in Patients Undergoing Vascular Reconstructive Surgery With PTFE Grafts

Further study details as provided by Georgetown University:

Study Start Date: March 2007
Intervention Details:
    Device: Vascular Sealant System
    The Vascular Sealant System is intended for use in vascular reconstructions to achieve adjunctive hemostasis by mechanically sealing areas of leakage.
  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Criteria

Preoperative Inclusion Criteria:

Subjects must meet all of the following criteria to be eligible for participation in the study:

  • > 18 years of age
  • Scheduled for elective vascular surgery that entails placement of a PTFE vascular graft including extra-anatomic, infrainguinal bypass and primary and secondary arteriovenous access procedures
  • Subject is willing and able to comply with all aspects of the treatment and evaluation schedule
  • Informed of the nature of the study, and has provided written informed consent, approved by the appropriate Institutional Review Board (IRB) of the respective clinical site

Preoperative Exclusion Criteria: Subjects who meet any of the following criteria are not eligible for participation in the study:

  • Subject has a known local or systemic infection
  • Subjects with known coagulapathies including hemophilia, factor deficiencies, platelet count < 80,000 u/mL, heparin induced thrombocytopenia or uncorrected INR > 1.5
  • Subject is participating in a clinical trial that requires treatment with another investigational device or drug
  • Subject is lactating or pregnant, or does not agree to use contraception for the duration of the study
  • Subject has a known hypersensitivity to any components of bovine thrombin preparations and/or material of bovine origin
  • The investigator determines that the subject should not be included in the study for reason(s) not already specified

Intraoperative Inclusion Criteria: Subjects must meet the following intraoperative inclusion criteria to be eligible for randomization:

  • Suture line leaks (bleeding) confirmed prior to randomization. Intraoperative Exclusion Criteria: Subjects who meet any of the following intraoperative exclusion criteria are considered screening failures and are not eligible to be randomized:
  • Incidental finding of any of the preoperative exclusion criteria
  • Subject has obvious contamination or a concurrent systemic infection
  • Investigator determines that participation in the study may jeopardize the safety or welfare of the subject
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00618358

Contacts
Contact: Renee Laughlin, RN, MPH 202-444-7288 rxl4@gunet.georgetown.edu
Contact: Jill Steinkogler 202-444-6735

Locations
United States, District of Columbia
Georgetown University Recruiting
3800 Reservoir Rd., NW, PHC Bld 3004A, District of Columbia, United States, 20007
Contact: Renee Laughlin, RN, MPH     202-444-7288     rxl@gunet.georgetown.edu    
Principal Investigator: David Deaton, MD            
Sub-Investigator: Richard Neville, MD            
Sponsors and Collaborators
Georgetown University
Covidien
Investigators
Principal Investigator: David Deaton, MD Georgetown University
  More Information

No publications provided

Study ID Numbers: 2007-072
Study First Received: February 8, 2008
Last Updated: February 19, 2008
ClinicalTrials.gov Identifier: NCT00618358     History of Changes
Health Authority: United States: Food and Drug Administration

Study placed in the following topic categories:
Thrombin
Gelatin Sponge, Absorbable
Hemorrhage
Hemostatics

ClinicalTrials.gov processed this record on May 07, 2009