The Mechanism of Action of Unite Biomatrix in Venous Leg Ulcers

April 4, 2017 updated by: Baxter Healthcare Corporation
The purpose of this study is to assess the mechanism of action of the Unite Biomatrix and compare its performance with the standard of care, compression therapy alone for the treatment of venous leg ulcers.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Study Type

Interventional

Phase

  • Not Applicable

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

  • United States
    • California
      • San Diego, California, United States, 92103
        • UCSD Medical Center
    • Florida
      • Miami, Florida, United States, 33136
        • University of Miami, Miller School of Medicine
    • Pennsylvania
      • Warren, Pennsylvania, United States, 16365
        • Newbridge Medical Research Corp., Warren General Hosp.

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:

  • venous ulcer confirmed w/ duplex ultrasound
  • ulcer greater than 6 months duration
  • post-debridement, the ulcer size must be >5cm2
  • at least 18 years old

  • ABI is between 0.7 to 1.2 and/or one of the following:

    • TcPO2 > 30mmHg at the ankle
    • Doppler waveform consistent with adequate flow in the foot (biphasic or triphasic)
  • able and willing to provide a voluntary written informed consent
  • three or fewer ulcers separated by >3.0 cm distance
  • able and willing to attend scheduled follow-up visits and study related exams

Exclusion Criteria:

  • greater than 20% reduction in wound size during the first 2 weeks of observation with the investigator
  • ulcer with exposed bone or tendon
  • clinical infection at the studied ulcer site including cellulitis and osteomyelitis
  • ulcer of a non-venous insufficiency etiology
  • phlebitis or deep leg vein thrombosis in past 30 days
  • arterial bypass in previous 30 days
  • severe anemia (Hgb<8)
  • serum albumin <3.0
  • uncompensated congestive heart failure
  • renal failure with Creatinine >2.5mg/dl
  • rheumatoid arthritis (and other collagen vascular disease), vasculitis, sickle cell disease, HIV
  • severe liver disease as defined by treating physician
  • uncontrolled diabetes mellitus determined by treating physician
  • malignancy at or near the ulcer site
  • any condition judged by the PI that would cause the study to be detrimental to the patient
  • known allergy to equine derived tissue
  • received another investigational device or drug within 30 days of Day 0
  • radiation therapy at the wound site
  • chemotherapy or immunosuppressive therapy within 30 days of enrollment
  • received another allograft, autograft, xenograft within 30 days of the study
  • pregnant or nursing women

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: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: compression therapy
Active Comparator: Biologic with compression therapy
Device: Unite Biomatrix
collagen based, decellularized equine pericardial dressing for skin surface wounds

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Wound healing pathway markers
Time Frame: baseline, day 0, 3, wk 1, 2
baseline, day 0, 3, wk 1, 2

Secondary Outcome Measures

Outcome Measure
Time Frame
Bacterial Bioburder
Time Frame: baseline, day 0, 3, wk 1, 2
baseline, day 0, 3, wk 1, 2

Collaborators and Investigators

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

Sponsor

Baxter Healthcare Corporation

Collaborators

Synovis Surgical Innovations

Investigators

  • Principal Investigator: Gerit Mulder, DPM, UCSD

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

March 1, 2009

Primary Completion (Anticipated)

July 1, 2011

Study Completion (Anticipated)

July 1, 2011

Study Registration Dates

First Submitted

July 24, 2009

First Submitted That Met QC Criteria

August 4, 2009

First Posted (Estimate)

August 6, 2009

Study Record Updates

Last Update Posted (Actual)

April 5, 2017

Last Update Submitted That Met QC Criteria

April 4, 2017

Last Verified

April 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • U0802

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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