Intron A for the Treatment of Hypertrophic Scar

January 28, 2014 updated by: Ted Tredget, University of Alberta

A Double-blind Placebo Controlled Trial Using Subcutaneous Injections of Intron A for the Treatment of Hypertrophic Scar

This study assesses the intervention with antifibrotic agents, specifically interferon (IFN) to reduce the magnitude and duration of hypertrophic scar. Burn patients with hypertrophic scar are randomly assigned to either an intervention IFN group or a placebo control group by subcutaneous injection three times a week. Patients are assessed using cutometer, mexameter, standardized photography, urinalysis, blood work, tissue biopsies and the Vancouver Burn Scar Assessment (VBSA) which rates selected HTS based on color, vascularity, height, pliability, itchiness and pain sensitivity. Once on treatment patients are assessed monthly for the six month treatment period.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

Burn patients being followed and treated in the Outpatient Burn Clinic with large areas of HTS are approached to participate in the study. Patients who agree to participate and who have signed an informed consent are entered into the trial.

Pre-treatment evaluation and monthly examinations include:

  • standardized photographs of scar
  • scar volume
  • Vancouver Burn Scar Assessment (VBSA)
  • blood work (TGF-beta, histamine)
  • urine collection (histamine)
  • 6mm punch biopsy of HTS and adjacent normal skin (every two months)

Patients are randomized to received with placebo or Intron A 1x106 IU a day for 7 days, then 3x106 IU 3 SC, three times a week for 23 weeks.

Study Type

Interventional

Phase

  • Phase 3

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

  • Canada
    • Alberta
      • Edmonton, Alberta, Canada, T6G 2B7
        • University of Alberta

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 to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • burns > 5% tbsa
  • informed consent
  • no prior exposure to interferon or other cytokines

Exclusion Criteria:

  • history of cardiac or CNS disorder or disease
  • autoimmune disease
  • immunodeficiency
  • abnormal renal or hepatic function
  • pregnancy
  • serious intercurrent illness
  • active infection
  • malnutrition
  • active drug or alcohol abuse

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
Experimental: interferon alpha 2b (Intron A)
1 million IU of interferon alpha 2b (Intron A) subcutaneously once a day for 7 days, then 3 million IU of interferon alpha 2b (Intron A) subcutaneously three times a week for 23 weeks.
Drug: interferon alpha 2b
1 million IU of interferon alpha 2b (Intron A) subcutaneously once a day for 7 days, then 3 million IU of interferon alpha 2b (Intron A) subcutaneously three times a week for 23 weeks.
Other Names:
  • intron a
Placebo Comparator: Placebo
Placebo administered subcutaneously once a day for 7 days, then three times a week for 23 weeks.
Drug: interferon alpha 2b
1 million IU of interferon alpha 2b (Intron A) subcutaneously once a day for 7 days, then 3 million IU of interferon alpha 2b (Intron A) subcutaneously three times a week for 23 weeks.
Other Names:
  • intron a

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Systemic effect of Intron A on hypertrophic scar
Time Frame: once / month for 6 months
standardized photographs of scar, scar volume, Vancouver Burn Scar Assessment (VBSA), blood work (TGF-beta, histamine), urine collection (histamine), biopsy of HTS and adjacent normal skin.
once / month for 6 months

Collaborators and Investigators

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

Sponsor

University of Alberta

Investigators

  • Principal Investigator: Edward E Tredget, MD MSc FRCSC, University of Alberta

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 Registration Dates

First Submitted

May 26, 2008

First Submitted That Met QC Criteria

May 28, 2008

First Posted (Estimate)

May 29, 2008

Study Record Updates

Last Update Posted (Estimate)

January 30, 2014

Last Update Submitted That Met QC Criteria

January 28, 2014

Last Verified

January 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IFN - 1598

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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