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A Retrospective Evaluation of Superficial Radiation Therapy (SRT) and Keloid Scars.

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: NCT03693924
Recruitment Status : Unknown
Verified October 2018 by Sensus Healthcare.
Recruitment status was:  Not yet recruiting
First Posted : October 3, 2018
Last Update Posted : October 3, 2018
Information provided by (Responsible Party):
Sensus Healthcare

Brief Summary:
Keloid formation in response to skin trauma inflicts about 18 million individuals. A key impediment in successful treatment of keloids is that the predominant treatments, particularly surgical excision and shaving, tend to initiate the regrowth of the keloid at the excision site, and therefore, recurrence rates are high. There is much evidence to demonstrate that following surgical excision procedures with a course of radiation therapy can significantly reduce recurrence rates to as little as 10% or below. This retrospective study is to evaluate this claim.

Condition or disease Intervention/treatment
Keloid Scar Radiation: SRT-100

Detailed Description:

A keloid is an unsightly non-malignant tumor comprised of an abnormal proliferation of scar tissue that forms at the site of cutaneous injury (e.g. skin trauma such as cuts, abrasions and puncture wounds, burns or surgical incisions). It appears as a raised scar and does not regress and grows beyond the original margins of the scar. Keloids most commonly develop on the earlobes, neck, shoulders, chest, back, upper arms and cheeks. Keloids tends to grow slowly and continue to spread for weeks, months or even years. As a keloid grows, it may cause significant itching, pain, and tenderness upon touch, reduced mobility and emotional distress.

About 18 million people worldwide are genetically prone to form keloids in response to skin trauma, with equal gender distribution and greater susceptibility for darker-skinned individuals and those aged 10 to 30 years.

The greatest obstacle in treating keloids with many available surgical and non-surgical methods is that new keloids typically recur at the site of excision due to the treatment itself. For example, the recurrence rate using surgical excision alone is 45 to 100 percent.

Surgical excision followed by radiotherapy is a helpful treatment option for large and more difficult-to-treat keloids that cannot otherwise be treated by, or have failed, more conservative measures. It is thought that because keloid fibroblasts are sensitive to x-ray irradiation, it may prevent the recurrence of keloids by controlling fibroblast proliferation, arresting the cell cycle, and inducing premature cellular senescence. When surgical keloid excision is followed by Radiation Therapy, recurrence drops dramatically to 10% or below.

The SRT-100™ is a United States Food and Drug Administration (U.S. FDA) approved device for delivering a precise, calibrated dose of Superficial Radiation Therapy (SRT) to treat keloids caused by surgery or injury. This retrospective study has been designed to focus on efficacy and safety of the SRT-100™ for the treatment of recurrent keloid scars.

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Study Type : Observational
Estimated Enrollment : 100 participants
Observational Model: Cohort
Time Perspective: Retrospective
Official Title: A Retrospective Registry Study to Evaluate the Long-Term Efficacy and Safety of Superficial Radiation Therapy (SRT) for the Treatment of Recurrent Keloid Scars.
Estimated Study Start Date : November 15, 2018
Estimated Primary Completion Date : February 16, 2019
Estimated Study Completion Date : February 16, 2019

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Scars

Intervention Details:
  • Radiation: SRT-100
    The SRT-100™ is a simple painless non-invasive in-office procedure that is approved by the U.S. Food and Drug Administration (U.S. FDA) to treat keloids caused by surgery or injury by delivering a precise, calibrated dose of Superficial Radiation Therapy (SRT) that only goes skin deep.

Primary Outcome Measures :
  1. Long-term recurrence rate [ Time Frame: one year ]
    Recurrence rate will be calculated as the percentage of keloids that recurred at the treatment site following treatment completion.

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 and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
The study population comprises patients who were treated with the SRT-100™ for one or more recurrent keloids and who have at least 1 year of follow-up data.

Inclusion Criteria:

  • Confirmed diagnosis of keloid(s).
  • Treatment with SRT-100™ of one or more keloids.
  • At least 1 year since treatment end.
  • Required retrospective data is existing and sufficient.

Exclusion Criteria

  • Lesions of etiology other than keloids.

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): NCT03693924

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Contact: Isabelle Raymond 561.922.5808

Sponsors and Collaborators
Sensus Healthcare
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Principal Investigator: Brian Berman, M.D.
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Responsible Party: Sensus Healthcare Identifier: NCT03693924    
Other Study ID Numbers: SRTS-SRT-002
First Posted: October 3, 2018    Key Record Dates
Last Update Posted: October 3, 2018
Last Verified: October 2018

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Product Manufactured in and Exported from the U.S.: No
Additional relevant MeSH terms:
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Collagen Diseases
Connective Tissue Diseases
Pathologic Processes