Active clinical trials for "Keloid"

Keloid is a fibroproliferative disorder of the skin that passes through the initial trauma area. Treatment of keloids is still a challenge because the efficacy of therapy varies between studies. Standard treatment using triamcinolone acetonide injection can cause various side effects. The efficacy of topical therapy for keloids varies. Angiotensin II in human skin, when it binds to the angiotensin II receptor type 1 (AT1R), will have pro-inflammatory, pro-proliferative and pro-fibrosis effects. This mechanism plays a role in the process of keloid formation. Losartan potassium is an angiotensin II type I receptor blocker (ARB), so it has the potential as an anti-keloid. The keloid structure with a thicker skin barrier and low biological membrane permeability of losartan potassium gives the basis for selecting ethosomal gel as a carrier for losartan potassium. The objectives are to compare the efficacy of pre and post-treatment and between 5% losartan potassium loaded in ethosomal gel and 10 mg/ml triamcinolone acetonide injection based on the indicator score of The patient and observer scar assessment scale 3.0 (POSAS 3.0), degree of erythema and pigmentation, area size, thickness and density of human keloids. This is an experimental study with a single-blind randomized-controlled trial (RCT) design with two groups of treatments.

Keloids have a strong genetic component. The goal of this study is to identify genes and regulatory elements on chromosomes that are the cause for keloids or contribute to keloid scarring.

This trial intends to gather very basic clinical information about keloid, its patterns of presentation, family history, ethnic background and correlation with the type of keloid, as well as prior treatment results that patients have had received.

The purpose of this investigation is to evaluate the effectiveness of high-dose UVA1 irradiation in the treatment of fibrosing conditions of the skin, e.g., keloid (a thick scar from growth of fibrous tissue), scleroderma (deposits of fibrous tissue in the skin) and acne keloidalis nuchae (keloids on the back of the neck or hairline) old burn scars, granuloma annulare or other similar skin conditions. This UVA1 dosing schedule has been used successfully in Germany for various skin diseases, such as the above mentioned scleroderma.

Treatment of keloid disorder is an area of unmet medical need. Current treatments for keloid partially address small and localized keloids, yet there are no wholly satisfactory or effective treatments for patients with extensive keloids. Such patients may benefit from effective systemic treatments. Sorafenib has the potential to regulate the three known dysregulated biological pathways in keloid tissue.

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.

This is a 2-part study. In the first part (Part I, 8 subjects), biopsies will be obtained from the resection site after keloid shaving and two weeks following resection to assess and select biomarkers to determine the biologic effects that occur in shaved keloids. No drug will be administered. In Part II (32 patients) will be randomized to receive QAX576 or placebo. An initial drug infusion will be followed by shave removal of keloids 6 - 8 days later followed by two additional drug infusions 4 weeks apart. Two weeks following resection, punch biopsies will be performed to assess biomarker responses. Patients will be followed-up for 52 weeks after first drug administration to assess keloid recurrence (clinically and by 3D imaging), and by physician's and patient's cosmetic assessments, and safety.

Keloid is chronic skin conditions that results in formation of tumor like growths on the skin. Despite its benign nature, keloid can cause severe aesthetic and, in some cases, functional problem which negatively impacts person's quality of life. Keloids do not regress on their own and results of most available treatments such as surgery, injecting keloids with steroids, chemotherapy injections, or even radiation therapy, have mostly proven disappointing. Some laboratory studies have shown that there is excessive amount of a protein called "vascular endothelial growth factor (VEGF)" in keloid tissue. This may play role in the formation and evolution of keloid. Bevacizumab is a drug that works by targeting vascular endothelial growth factor (VEGF) which helps new blood vessels form. Without new blood vessels, the growth of the keloid may be slowed Based on presence of excess amount of VEGF in keloid tissue, we hypothesize that bevacizumab will be effective in treatment of keloids. This exploratory clinical trial is to confirm or reject this hypothesis.

This investigator initiated study, single-blinded, parallel, randomized study will be conducted in subjects with 2 or more keloids similar in size and duration on a similar area of the body. The response of the closure techniques will be evaluated by clinical and instrumental assessments. Each qualified subject will be assessed and the keloids will be randomly assigned to the Clozex or suture closure. One keloid will be surgically excised and the surgical wound generated will be randomized to be closed with Clozex. A second keloid will be surgically excised and the surgical wound generated will be randomized to be closed with sutures. The inflammation index and the keloid recurrence rate at each surgical wound closure site will be compared.

Treatment of keloids with targeted Ultraviolet-Beta (UVB) radiation will improve the clinical appearance and induration of lesions.