View clinical trials related to Alopecia Areata.
Filter by:Alopecia areata (AA) is a type of non-cicatricial alopecia. The most common presentation of AA is localized patches of hair loss on the scalp. The extensive forms of AA presented as diffuse hair loss of the scalp (alopecia totalis) and diffuse hair loss through the entire body including the eyelashes and eyebrows (alopecia universalis). AA affects approximately 2% of the general population. AA occurs at any age. The peak of incidence is higher in the second and third decades of life. AA may be associated with several autoimmune diseases including thyroid diseases, lupus erythematosus, vitiligo, psoriasis, rheumatoid arthritis and inflammatory bowel disease. The frequency of the disease varies between geographically separate populations. These diseases associations suggest a relationship between AA and autoimmunity. Human hair has an important cosmetic and communicational role. We may find significant psychological distress in persons with partial and complete hair loss. AA is associated with psychiatric morbidity especially anxiety and depression. The pathogenesis of AA involves a complex interaction between genetic, environmental and immune factors. The histopathology of the disease differs according to the stage of the disease. In the acute stage of AA, there is a dense accumulation of lymphocytes (CD4 &CD8) around hair bulbs so called swarm of bees. In chronic stage, the inflammation may or may not resolve, but there is increase in number of catagen and, or telogen hair and pigmentary incontinence. In the recovery stage, there is minimal inflammation and increase in anagen hair. T-helper17 cells are unique subset of T-helper cells which produce many interleukins (IL) e.g. IL-17A, IL-17F, IL-21, IL-22, IL-6 and tumor necrosis factor (TNF). The maturation of Th-17 needs the stimulation of naïve T cells by both TGF and IL-21. IL-21 is a cytokine that is produced mostly by activated CD4 T cells. It controls the differentiation and activity of T cells, B cells and NK cells. IL-21 could be a promising marker in the diagnosis of AA and also can be used as a marker of its activity. IL-15 is a pleotropic cytokine that has multiple effects on different body cell types. It affects the function of cells of both innate and adaptive immune system. IL-15 is well known to promote lymphocytic development and suggested to play a role in some autoimmune diseases e.g. multiple sclerosis, rheumatoid arthritis, ulcerative colitis and celiac disease. IL-15 inhibits the well-known self-tolerance that mediated by activation - induced cell death, promotes maintenance of CD8+ memory T cells with induction of some cytokines which involved in autoimmune process e.g. TNF- and IL-1B. IL-15 is positively correlated with the number and the extent of AA so it could be a possible marker of AA severity.
The goal of this clinical trial is to learn about oral minoxidil 1mg in the treatment of women with androgenetic alopecia, a type of hormone-imbalanced hair loss. The main questions to answer are to know about that minoxidil 1mg is as effective as minoxidil 2% topical solution (comparator product) and is more effective than placebo; and to ensure treatment with oral minoxidil is safe. Participants will be assigned randomly to receive one of the following treatment combinations: - the test product (oral minoxidil 1 mg, once/day) and the vehicle solution (vehicle means it looks like the comparator product, but it does not contain an active ingredient, 2 times/day), or - the placebo tablet (placebo means it looks like the test product, but it does not contain an active ingredient, once/day) and the comparator product (2% minoxidil solution, 2 times/day), or - the placebo tablet (once/day) and the vehicle solution (2 times/day). The clinical trial will take up to 36 weeks. During this time, patients will come to the clinical trial centre for 5 times for examinations and will be called by phone twice. At the visits, the following examinations will be performed: photos of the hair will be taken to determine hair density, assessment of changes in scalp hair growth, measurement of blood pressure, pulse, and body temperature, a physical examination, blood withdrawal to determine any abnormalities in the blood, urine sampling and analysis, performance of ECG, and evaluation of hypertrichosis (i.e., excessive hair growth over the body). Furthermore, patients will be asked daily whether they had experienced any side effects or took any new medications (or changed the dose of a known medication) or underwent any medical procedure. Also, women of childbearing potential must undergo pregnancy tests in blood and urine.
Methodology: The 70 patients of age 20 to 50 years presented to the out-patient department of CMH Abbottabad suffering from alopecia areata were enrolled. The non-probability consecutive sampling technique was used. Patient in group-A applied clobetasol propionate 0.05% twice daily, whereas Group-B applied topical tacrolimus 0.1% twice daily for upto 3 months. The Patients were assessed at baseline, 4th weeks, 8th week and 12th week after treatment of each session. Hair loss was calculated from SALT score at presentation and on follow-up after 3 months. The degree of response was assessed on the basis of hair re-growth as excellent (>75% re-growth), Marked (51-75% re-growth), moderate (26-50% re-growth), or slight (≤25% re-growth). To determine statistical significance χ2-square test, taking p-value <0.05 as significant, was used.
This is a prospective, randomized, double-blind, placebo-controlled clinical trial. The study will take place at four sites. This trial will enroll a total of 76 children and adolescents with moderate to severe AA (affecting at least 30% of the scalp) at the time of screening with a targeted 61 participants completing through Week 48. All subjects must have evidence of hair regrowth within the last 7 years of their last episode of hair loss; and have screening IgE ≥200 and/or have personal and/or familial history of atopy. Study participation will be up to 124 weeks, consisting of: a screening period of up to 4 weeks; a 48-week placebo-controlled period; a 48-week open-label extension period; followed by a 24-week follow-up period.
The main purpose of this study is to measure the efficacy of farudodstat compared to placebo at Week 12 from the treatment start, in adult participants with Alopecia Areata (AA) with 30% or greater scalp hair loss.
This study will be a single center, open-label study of a single concentration of ANR- 001.1. The solution will be applied to the scalp of 14 male subjects by study staff once daily for 7 days.
Introduction Alopecia areata (AA) is a complex inflammatory disease characterized by cellular infiltration of T- lymphocytes targeting hair follicles, disrupting the anagen phase, with spontaneous remission, recurrence, and exacerbation, making it very unpredictable and emotionally disturbing . It affects nearly 1-2% of the general population with a lifetime risk of 2%, The onset of AA might be at any age; however, most patients develop the disease before 40 years of age . Early-onset AA (a mean age of onset at 5-10 years) predominantly presents as a more severe subtype, such as alopecia universalis . Alopecia areata presents clinically as a non-scarring patchy hair loss primarily on the scalp, and/or other hairy areas and may progress to total scalp hair loss (alopecia totalis, AT ) or complete body hair loss (alopecia universalis, AU ) . Approximately 5- 10% of AA patients will progress into AT/AU . The course of AA varies greatly, the strongest predictors of a poor prognosis include AT, AU, or ophiasis pattern hair loss, as well as earlier age of onset . Severe and recurrent AA disturbs quality of life of patients and may also lead to depression, changed self-image,and interferes with social activities . Currently, the hypotheses for AA development mostly focus on the collapse of immune privilege properties of the hair follicles(HFs) and the nature of self-antigen presentation (follicular antigens) that result in the induction and subsequent attack of activated lymphocytes . Activation of the lymphocytes mainly CD8+NKG2D+induces release of severalTh1 cytokines; interleukin (IL)-1α , IL-1β , and tumor necrosis factor (TNF) alpha, capable of inhibiting (HF) growth with early termination of anagen . AA is a polygenic disorder in which several major genes dictate susceptibility to disease, up to 28% of patients report at least one affected family member, monozygotic twins have exhibited similar times of onset and patterns of hair loss. Genes loci for Human leucocyte antigens (HLA)DRB1* 1104 and DQB1* 03 are detected in patients with AA. The Janus kinases (JAKs) and signal transducer and activator of transcription (STAT); (JAK/STAT) pathway play an important role in inflammatory processes as they are involved in signaling for over 50 cytokines and growth factors. The JAK/STAT pathway transduces multiple extracellular signals involved in cell proliferation, differentiation, migration, and apoptosis . The JAK family is constituted by four types of cytoplasmic tyrosine kinases: JAK1, JAK2, JAK3, and TYK2 . STAT, of which there are seven different subtypes (STAT1, STAT2, STAT3, STAT4, STAT5a, STAT5b, and STAT6) (17), is the other fundamental component of the cascade . After being phosphorylated by JAK, STAT translocates to the nucleus to induce the transcription of specific genes. Alterations in the JAK/STAT pathway have been related to the pathophysiology of atopic dermatitis (AD), vitiligo, and AA.
1. Androgenic alopecia (AGA) is a clinically common non cicatricial, progressive hair follicle microminiaturization disorder that begins in puberty or after puberty. The latest epidemiological survey shows that the prevalence rate of males in China is about 21.3%. In 2021, Nature published an article stating that stress hormones can inhibit hair growth by regulating hair follicle stem cells. This research conclusion provides new evidence for the impact of stress on hair growth. The trend of receiving AGA patients in the investigators' outpatient department is increasing. How to provide rapid, safe, and effective treatment for AGA patients is currently a hot topic for clinicians. 2. Studies have shown that phototherapy can effectively improve androgenic alopecia, alopecia areata, and hair loss after chemotherapy, and promote hair growth. At the same time, phototherapy can also be adjusted by adjusting the expression of reductase genes and vascular endothelial growth factor genes, as well as some endogenous epidermal growth factors, such as fibroblast growth factor and insulin-like growth factor, are also upregulated, which can stimulate hair growth. 3.1565 nm non-ablative fractional laser has the effects of inhibiting sebaceous gland secretion of oil, regulating collagen metabolism, and delaying changes in scalp collagen after hair loss. Previous studies have confirmed that 1565 nm non-ablative fractional laser therapy for alopecia areata has a good effect. Its possible mechanisms include increasing local blood flow, stimulating growth factors and cytokines during hair growth. At the same time, in order to achieve low energy, safe, and effective treatment without the need for hair cutting, the investigators had for the first time improved the 1565 nm non non-ablative fractional laser treatment tool, removing the original sapphire crystal cooling contact. This improvement can make the treatment head fully fit the scalp, and the excitation beam acts vertically on the treatment area, reducing energy attenuation.
Evaluate and compare the efficacy and safety of topical cetirizine 1%, versus topical betamethasone valerate 0.1% in the treatment of localized alopecia areata.
Randomized, double-blind, vehicle-controlled, parallel group, multi-dose study of TDM-105795 in male subjects with androgenetic alopecia