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Efficacy of Spray Silicone in Alteration of Burn Scar

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01075165
Recruitment Status : Withdrawn (IRB closed study due to no enrollment over 4 yrs)
First Posted : February 24, 2010
Last Update Posted : February 4, 2015
Information provided by (Responsible Party):
United States Army Institute of Surgical Research

Brief Summary:
In a burn population, conduct a prospective, double-blinded, randomized, controlled clinical trial to determine the ability of spray silicone to alter the physical characteristics of burn scar compared to a placebo.

Condition or disease Intervention/treatment Phase
Burn Scar Other: silicone spray Other: saline spray Not Applicable

Detailed Description:
At study enrollment, the patient's scar will be evaluated using the vascularity category of the Vancouver Scar Scale. The vascularity rating is a four item likert scale that rates the scar as normal (0), pink (1), red (2), or purple (3). Scar height will be measured using a diagnostic ultrasound unit with a 20MHz transducer.27 Digital photographs will be taken with a color spectrum scale placed next to the scar. Laser Doppler imaging (LDI) will be used to assess scar perfusion at the regions of interest to determine whether treatment with silicone spay results in measureable changes in scar perfusion as well as to establish the time course over which these changes may be expected to occur. A spray template will then be created for the patient using thermoplastic material. It will consist of three (3) circles with an area of .785 inches, spaced one inch apart, which will section off the test areas. One of the areas will be treated with the spray silicone, one area will be sprayed with spray saline (to serve as a placebo), the remaining area will not be treated and therefore will serve as the control. The order in which each area is treated will be determined using a randomized block, computerized allocation developed by the study statistician. The spray silicone and spray saline will be applied via containers that conceal the contents and the patients will not be allowed to observe the application of the silicone or saline. Although the patient will be blinded to the test areas that have substances applied to them, there will be no blinding in regard to the control area that receives no treatment. The substances will be applied by trained investigators each weekday for a 12-week period to ensure the method of application is consistent. Both substances will be applied at a distance of 1.5 inches from the surface of the skin for a one second period. Patients will be instructed not to wash the treated area for 24 hours and not to apply pressure garments over the area. The treated areas will be re-evaluated and photographed every two weeks for a 12 week period. The clinician conducting the initial scar evaluation and re-evaluations will be blinded to the scar treatment. Each patient will also complete a scar assessment scale.28 The patient's participation in the study will be concluded 12 weeks after the initial treatment and he/she will be given the option of continued use of the spray silicone, resumption/commencement of pressure garment use or the provision of another appropriate scar management program. Because burn scar can take several months to years to reach the scar maturation phase, the patient will still be a candidate for an alternate scar management program if at the conclusion of this study they see no benefit from the use of spray silicone. If at any time during the 12-week period the clinician determines that the scar is worsening, then the patient will be removed from the study and offered another scar management program.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 0 participants
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: The Efficacy of Spray Silicone in the Alteration of Physical Burn Scar Characteristics: A Double Blinded Randomized Controlled Trial
Study Start Date : March 2011
Actual Primary Completion Date : December 2014
Actual Study Completion Date : December 2014

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Burns Scars

Arm Intervention/treatment
Experimental: Silicone Spray
Apply spray silicone
Other: silicone spray
application of silicone spray to predefined area qd 12 weeks

Placebo Comparator: Saline Spray
Apply Saline Spray
Other: saline spray
application of saline spray to predefined area qd 12 weeks

Primary Outcome Measures :
  1. Vascularity rating, scar height, and color of burn scar (spray silicone vs placebo vs untreated) [ Time Frame: every 2 weeks for a 12 week period ]

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Military or civilian
  2. Between 18-60 years of age
  3. Subjects have experienced a deep partial thickness burn injury with a minimal size 2x6 inches in dimension
  4. Burn wounds must have healed by secondary intention
  5. Available for initial scar evaluation and bi-weekly assessments (30 minutes) and application of silicone and saline every weekday (5 minutes)

Exclusion Criteria:

  1. <18 or >60 years
  2. Available burn scar size is less then 2x6 inches
  3. Burn wounds healed by sheet grafting
  4. Unavailable for initial scar evaluation and bi-weekly assessments (30 minutes) and application of silicone and saline every weekday (5 minutes)
  5. Pre-existing medical conditions that have the potential to impair healing (i.e. Diabetes, Peripheral Arterial Disease, etc).
  6. Pregnant women will be excluded from the study because of the potential for pregnancy hormones to exacerbate the burn scar

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01075165

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United States, Texas
US Army Institute of Surgical Research
Fort Sam Houston, Texas, United States, 78234
Fort Sam Houston, Texas, United States, 78234
Sponsors and Collaborators
United States Army Institute of Surgical Research
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Responsible Party: United States Army Institute of Surgical Research Identifier: NCT01075165    
Other Study ID Numbers: H-09-041
First Posted: February 24, 2010    Key Record Dates
Last Update Posted: February 4, 2015
Last Verified: February 2015
Keywords provided by United States Army Institute of Surgical Research:
burn scar
hypertrophic scar
scar assessment
abnormal scarring
Burn patients
Additional relevant MeSH terms:
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Wounds and Injuries
Pathologic Processes