Vascular Sealant Study

NCT00618358 | Terminated Phase 1 DMC

• 1 other identifier: 2007-072
• Study Type: interventional
• Target: N/A
• Locations: 1 country
• Sites: 1

Brief Summary

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).

Conditions

Arteriovenous Access Grafts or Extra-anatomic and Infra-inguinal Grafts

Study Arms (2)

Vascular Sealant)

EXPERIMENTAL

Device: Vascular Sealant System

Gelfoam/Thrombin

ACTIVE COMPARATOR

Other: Gelfoam/Thrombin

Interventions

Vascular Sealant System DEVICE

The Vascular Sealant System is intended for use in vascular reconstructions to achieve adjunctive hemostasis by mechanically sealing areas of leakage.

Vascular Sealant)

Gelfoam/Thrombin OTHER

Gelfoam/Thrombin

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• 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

You may not qualify if:

• 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
• Suture line leaks (bleeding) confirmed prior to randomization.
• 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

Sponsors & Collaborators

• Georgetown University: lead
• Medtronic - MITG: collaborator

Study Sites (1)

Georgetown University

Washington D.C., District of Columbia, 20007, United States

Location

Related Publications (1)

• Ma GW, Kucey A, Tyagi SC, Papia G, Kucey DS, Varcoe RL, Forbes T, Neville R, Dueck AD, Kayssi A. The role of sealants for achieving anastomotic hemostasis in vascular surgery. Cochrane Database Syst Rev. 2024 May 2;5(5):CD013421. doi: 10.1002/14651858.CD013421.pub2.

  PMID: 38695613 DERIVED

MeSH Terms

Interventions

Gelatin Sponge, Absorbable; Thrombin

Intervention Hierarchy (Ancestors)

Surgical Sponges; Surgical Equipment; Equipment and Supplies; Serine Endopeptidases; Endopeptidases; Peptide Hydrolases; Hydrolases; Enzymes; Enzymes and Coenzymes; Serine Proteases; Blood Coagulation Factors; Blood Proteins; Proteins; Amino Acids, Peptides, and Proteins; Biological Factors

Study Officials

• David Deaton, MD

  Georgetown University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: February 8, 2008
• First Posted: February 20, 2008
• Study Start: March 1, 2007
• Last Updated: March 27, 2015

Record last verified: 2010-01

Locations

US (1)