View clinical trials related to Alopecia Areata.
Filter by:This was a multi-center, randomized, double-blind, placebo-controlled Phase II clinical study of KX-826 Tincture in Chinese adult female subjects with AGA.
A Phase 2 double-blind, multi-site, placebo-controlled, parallel-group design to assess the efficacy, safety and dose-response characterisation of STS-01 for the treatment of mild- moderate alopecia areata.
Alopecia areata (AA) is an autoimmune disorder characterized by non-scarring hair loss of the scalp or any hair-bearing surface. Alopecia areata affects approximately 2% of the general population. AA has a significant influence on patients' quality of life and may induce psychological disorders. In AA, CD4+ and CD8+ T-cells violate the immune privilege of the anagen hair follicle, leading to loss of the growing hair shaft. A genome-wide association study demonstrated a genetic predisposition to AA . Additionally, environmental insults, such as viral infections, trauma, or psychosocial stress, have also been suspected to possibly contribute to the development of the disease . The clinical manifestations of AA vary from small well-defined patches of hair loss to the diffuse involvement of the scalp or the entire body. The majority of AA patients experience unpredictable relapsing and remitting episodes. In a number of patients, it can be persistent, especially when the hair loss is extensive.
The study is designed to validate safety results from the Phase 1 PP405-001 trial while also characterizing longer term safety and PK following 28 days of administration.
A single site open label interventional study evaluating currently marketed hair supplements targeting the underlying root causes of thinning hair.
A single-center, open-label, prospective study to demonstrate the efficacy of an oral supplement to improve the strength and support the growth of thinning hair in men and women with self-perceived hair thinning.
The objective of this study is to assess the effect of standardized scalp care, specifically mechanical cleansing with the Venus Glow™ Device and water, on the scalp microbiome. This study also seeks to characterize the microbiome of the normal, healthy scalp, thereby providing a baseline for which the scalp affected by hair and scalp disease can be compared.
Evaluation of the efficacy and safety of DNN.22.17.036 versus 10573048700 in the treatment of male pattern hair loss.
This is an interventional, randomized, double blind, parallel group, placebo-controlled, Phase 2b, 3-arm study to assess the effect of pegylated-recombinant-human interleukin-2 (rezpegaldesleukin) in adult participants with severe to very severe alopecia areata. The estimated duration includes a screening period of up to 35 days, a 36-week treatment period, and a 24-week follow-up period. The maximum study duration is approximately 65 weeks for all participants.
Alopecia areata (AA) is an immunologically mediated disease characterized by non-scarring hair loss (Madni and Shapiro, 2000). AA is presented by rapid and complete hair loss in one or more round or oval patches, usually on the scalp, beard area, eyebrows, eyelashes, and less commonly, on other hairy areas of the body (Berker et al., 2010 and James et al., 2011) Alopecia areata is a T-cell-mediated autoimmune disease. There is a complicated interplay between loss of immune privilege in the hair follicle, autoimmune-mediated hair follicle damage, and activation of inflammatory pathways that have been argued to explain the development of this disorder, but the exact pathophysiology of AA remains unknown. Hair follicles are infiltrated by autoreactive CD8 and CD4 T lymphocytes, which attack hair follicle-derived autoantigens while sparing the stem compartment (Rajabi et al., 2018). Alopecia areata can be treated with topical and/or intralesional corticosteroids, which are the treatment of choice. Anthralin, minoxidil, coal tar, and topical immunotherapy are examples of other topical treatments. Systemic immunosuppressants such as cyclosporine, systemic steroids, Janus kinase inhibitors, and methotrexate may be considered in severe resistant cases (lee and lee, 2017). Intralesional triamcinolone acetonide is preferred in cases of AA , as it is well known as anti-inflammatory and interferes with local immunity of the skin, which helps in the recovery of the disease, but if used in wrong technique or given in a high dose, it might cause all the side effects of corticosteroid, especially skin atrophy (Berker et al., 2010). Lactic acid is a member of alpha-hydroxy acids. It has been used in the treatment of many skin diseases, like AA and vitiligo. Lactic acid stimulates spontaneous secretion of vascular endothelial growth factor (VEGF) by human reconstructed epidermis. VEGF is an angiogenic cytokine involved in angiogenesis and wound healing and stimulates the growth of hair follicles resulting in recovery of AA. Other studies suggest that lactic acid may act through its irritant effect (Al-Tammimy, 2005). Vitamin D interacts with the innate and adaptive immune systems in a variety of ways, the majority of which contribute to its downregulation (Nancy and Yehuda, 2009). It has a powerful effect on T and B lymphocytes, influencing their activation responses (Arnson et al., 2007). All cells of the immune system express 1,25-dihydroxyvitamin D3 receptors (VDRs) and are therefore vulnerable to calcitriol-mediated modulation. Vitamin D3 has the ability to influence the migration and maturation of different dendritic cell subtypes and their production of chemokines and cytokines, giving them an immunoregulatory and tolerogenic role (Illescas-Montes et al., 2019) It has been shown that VDRs are highly expressed in the keratinocytes of human hair follicles and the absence of their expression is associated with reduced hair follicle growth and epidermal differentiation. Reduced VDR expression in the hair follicles of affected areas has also been observed in studies of AA patients' scalp (Çerman et al., 2015). Microneedling (MN) is a technique that comprises puncturing the skin repeatedly with sterile microneedles (Iriarte et al., 2017). It promotes hair regeneration by triggering stem cells in the hair bulge, which results in the generation of growth factors. It also improves blood circulation to the hair follicles and influences the local immune cells (Chandrashekar et al., 2014). Moreover, combining MN with applied topical drugs facilitates their absorption through the microchannels created within the epidermis (Fertig et al., 2018).