Retrospective Study of Keloid Disorder

  • End date
    Sep 21, 2023
  • participants needed
  • sponsor
    Tirgan, Michael H., M.D.
Updated on 21 January 2021


Purpose of this retrospective study is to review and analyze the information and data that has been already been generated during the course of routine practice of medicine by the investigators from 2007 up until Sept 1, 2016 from keloid patients who have sought medical care or medical advice for their keloid disorder.


To retrospectively review and analyze clinical data that has already been collected from keloid patients including photographs taken of keloid lesions during routine practice of medicine by the investigators 1) To better understand natural history of keloid disorder (KD), 2)To determine the ethnic incidence and prevalence of keloid, 3) To determine the rate of familial keloids, 4) To determine response to different treatment modalities, 5) To determine risk factors for development and worsening of keloid lesions.

Condition Keloid, Collagen disease, Scar, Collagen Vascular Diseases, Scar Tissue
Treatment History of prior Surgery, History of Radiation Therapy
Clinical Study IdentifierNCT02923596
SponsorTirgan, Michael H., M.D.
Last Modified on21 January 2021


Yes No Not Sure

Inclusion Criteria

All patients must have at least one keloid lesion
Availability of photographic documentation of keloid lesion(s)

Exclusion Criteria

Lack of photographic documentation of keloid lesion(s)
Lack of demographic data
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