View clinical trials related to Keloid.
Filter by:Keloids are a common form of hypertrophic scars that by definition last beyond 6 months and grow beyond the site of initial injury. Keloids are a common complaint from patients in dermatology and cause significant functional impairment due to cosmetic disfigurement, itching and pain. Current treatment modalities include intralesional corticosteroids, chemotherapeutic agents and laser therapy. Initial reports have demonstrated that Botulinum toxin type A may be a viable treatment option for keloids that can reduce keloid size and reduce associated symptoms while having fewer side effects when compared to intralesional corticosteroid injection, which can cause unnatural blood vessel growth or skin thinning. To date, no study has carefully examined the efficacy of Botulinum toxin type A in treating keloids or its mechanistic effects on keloid biology. Our aim in this study is to pursue a rigorous, randomized control trial to assess the potential use Botulinum toxin type A to treat keloids. Efficacy will be objectively be mentioned by change in keloid size after treatment, along with subjective measures of patient satisfaction and symptoms, and finally physician rated scores. Also, samples from three patients will be analyzed in the laboratory setting to determine the underlying molecular mechanism behind the effects of Botulinum toxin type A on keloid biology.
The prospective, split-scar, double-blind, randomized controlled study will enroll the patients who are older than 20 years with progressive keloid lesion which is symmetric. Botulinum toxin A will be injected into half of each keloid revision wound immediately after skin closure. The scars will be assessed at 1-year follow-up with Vancouver Scar Scale (VSS), Patient and Observer Scar Assessment Scale (POSAS), and the Cutometer.
Case control study of patients with and without restenosis to demonstrate the link between in-stent restenosis and an excessive skin healing. Patients will undergo skin biopsy and blood sample tests to search for a relationship between both processes and for the identification of biomarkers and therapeutic targets.
The purpose of this pilot study is to evaluate the safety and efficacy of radiation therapy (RT) in the treatment of unresected keloids.
This is a single center, double-blind (patient and investigator), randomized, placebo-controlled study with a split-lesion design, in which selected keloids will receive three consecutive treatments of a) bleomycin and b) placebo (saline (NaCl 0,9%)), administered with an electronic pneumatic jet injector.
The purpose of this study is to determine whether a developmental formulation is substantially equivalent to the predicate device in the treatment of hypertrophic and keloid scars.
Radiation therapy has been, and is being used in treatment of patients with keloid. Radiation is typically used as an adjunct to surgery in order to reduce the recurrence rate of keloid. Radiation therapy is not free of long term side effects. Radiation Therapy is known to cause secondary cancers. The investigators also do not have a good understanding as to how effective radiation therapy is in preventing recurrence of keloid. Purposes of this study are to determine the long term safety as well as efficacy of radiation therapy when used for treatment of keloid.
Most children with cancer need a central venous catheter. These catheters are typically placed on the anterior thorax, where the risk of hypertrophic scarring and keloid development is greatly enhanced. A significant part of the children who have survived childhood cancer are troubled by their scars. Topical glucocorticoid treatment is known to induce a reduction of the collagen in the connective tissue. The investigators hypothesize that treatment with topical glucocorticoids for one week before and three weeks after removal of a central venous catheter, will reduce the formation of hypertrophic scarring and keloid development in children.