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Journal of the European Academy of... May 2024Alopecia areata (AA) is an autoimmune disorder that affects the hair follicles, resulting in patchy recurrent hair loss. A large body of evidence has demonstrated the... (Comparative Study)
Comparative Study Meta-Analysis
Alopecia areata (AA) is an autoimmune disorder that affects the hair follicles, resulting in patchy recurrent hair loss. A large body of evidence has demonstrated the favourable clinical response of the Janus kinase (JAK) inhibitors and biologics, but a lack of comprehensive comparison among these therapies exists in the current literature. This study aimed to compare their efficacy. A systematic review and meta-analysis were performed including randomized trials that report the outcomes of the Severity of Alopecia Tool (SALT) and/or the mean change in SALT. These articles were pooled and a network meta-analysis (NAM) was conducted. Based on the surface under the cumulative ranking curve estimates obtained for the mean change in SALT score, baricitinib_4 mg (0.7949656) had the best probability of being the most effective therapy, followed by ritlecitinib_200_50 mg (0.7391906) and ivarmacitinib_4 mg (0.7292594). In contrast, dupilumab, secukinumab, tralokinumab and apremilast were less likely to be effective. Targeting the JAK signalling pathway holds great potential for restoring hair regrowth, albeit the contribution of JAK1, JAK2, JAK3 and TYK2 inhibition to the therapeutic effect on AA is apparently different. Baricitinib_4 mg and ritlecitinib 200_50 mg demonstrated notable efficacy, and both molecules displayed a dose-dependent effect, which is not observed with ivarmacitinib. Further investigations into the specific mechanisms of action of these JAK inhibitors are warranted to elucidate the reasons behind these differences.
Topics: Adult; Humans; Administration, Oral; Alopecia Areata; Bayes Theorem; Biological Products; Janus Kinase Inhibitors; Network Meta-Analysis; Randomized Controlled Trials as Topic; Treatment Outcome
PubMed: 38279559
DOI: 10.1111/jdv.19797 -
Clinical and Experimental Dermatology Feb 2023Alopecia areata (AA) is a nonscarring alopecia with an estimated global prevalence of 2% and limited data on the efficacy of current treatment. Clinical practice...
INTRODUCTION
Alopecia areata (AA) is a nonscarring alopecia with an estimated global prevalence of 2% and limited data on the efficacy of current treatment. Clinical practice guidelines (CPGs) provide recommendations based on best available evidence. It is unclear how many AA CPGs are available globally.
AIM
To systematically search for and identify CPGs on AA and to critically appraise their quality using validated tools.
METHODS
We performed a literature search to identify CPGs published between October 2014 and April 2021, using the following databases: MEDLINE, Embase, National Institute for Health and Care Excellence (NICE), Guidelines International Network, Emergency Care Research Institute guidelines trust, Australian CPGs, Turning Research Into Practice database and DynaMed. The systematic review was conducted and reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses framework. Three critical appraisal tools were used: Appraisal of Guidelines for Research and Evaluation (AGREE) II instrument, Lenzer's red flags and United States Institute of Medicine's (IOM) criteria of trustworthiness.
RESULTS
In total, six AA CPGs from seven manuscripts (one CPG was in two parts published in separate papers) were included. The majority (four of six) of the CPGs focused on treatment. Four CPGs (total of five papers) were in English and two CPGs were only available in the original language (one Russian and one Japanese). All AA CPGs demonstrated low quality in several domains in the AGREE II appraisal, including stakeholder involvement and applicability, with the latter being deemed the worst domain for all CPGs, with an average of 29%. The mean (SD) number of Lenzer's red flags for the included CPGs was 3.4 (1.5) out of a total of 8 possible red flags, while the IOM criteria showed 1.6 (0.8) 'fully met' criteria and 3.1 (1.2) 'not met' out of a total of 9 criteria.
CONCLUSION
We found a limited number of AA CPGs, all of which had significant methodological deficiencies. We encourage guideline development groups to use validated checklists/tools to develop reliable and trustworthy CPGs.
Topics: Humans; Alopecia Areata; Dermatology; Australia; Databases, Factual
PubMed: 36641755
DOI: 10.1093/ced/llac025 -
Skin Appendage Disorders Oct 2023Alopecia areata (AA) is a chronic autoimmune disease that causes non-scarring alopecia. A few studies have shown increased odds of AA in Black individuals compared to...
BACKGROUND
Alopecia areata (AA) is a chronic autoimmune disease that causes non-scarring alopecia. A few studies have shown increased odds of AA in Black individuals compared to White individuals and increased odds of AA in Latinos compared to non-Latinos. Another study showed that Asians have lower odds of AA compared to Whites. Baricitinib, a Janus kinase inhibitor (JAKi), became the first Federal Drug Administration (FDA)-approved medication for adult patients with severe AA in June 2022.
OBJECTIVES
The aim of this review was to analyze published JAKi AA randomized controlled trials to characterize and assess the racial and ethnic representation of participants. Animal studies, studies unrelated to AA, and studies not investigating JAKis were excluded.
METHODS
PubMed and clinicaltrials.gov were searched for systematic reviews of clinical trials between 1990 and 2022.
RESULTS
Six clinical trials were included with a total of 1,690 subjects. Four trials were industry-sponsored, while two were university-sponsored. The three largest races represented included White (59.9%), Asian (28.0%), and African American/Black (8.1%). Three out of the 10 patients identified as Hispanic. None of the trials included sub-analyses of clinical efficacy based on race and/or ethnicity.
CONCLUSIONS
Our results show that populations with lower odds of AA (Whites and Asians) are overrepresented in JAKi AA clinical trials compared to Black and Hispanic/Latino patients.
PubMed: 37900778
DOI: 10.1159/000531219 -
Experimental Dermatology Jul 2023Common skin disorders such as acne vulgaris, rosacea and folliculitis are bothersome prevalent inflammatory diseases of hair follicles that can easily be investigated... (Review)
Review
Common skin disorders such as acne vulgaris, rosacea and folliculitis are bothersome prevalent inflammatory diseases of hair follicles that can easily be investigated bedside using optical coherence tomography (OCT) and reflectance confocal microscopy (RCM) with micrometre resolution, opening a novel era for high-resolution hair follicle diagnostics and quantitative treatment evaluation. EMBASE, PubMed and Web of Science were searched until 5 January 2023 to identify all studies imaging hair follicle characteristics by RCM and OCT for diagnosis and monitoring of treatment in hair follicle-based skin disorders. This study followed PRISMA guidelines. After inclusion of articles, methodological quality was assessed using the QUADAS-2 critical appraisal checklist. Thirty-nine in vivo studies (33 RCM and 12 OCT studies) were included. The studies focused on acne vulgaris, rosacea, alopecia areata, hidradenitis suppurativa, folliculitis, folliculitis decalvans, lichen planopilaris, discoid lupus erythemasus, frontal fibrosing alopecia and keratosis pilaris. Inter- and perifollicular morphology including number of demodex mites, hyperkeratinization, inflammation and vascular morphology could be assessed by RCM and OCT in all included skin disorders. Methodological study quality was low, and interstudy outcome variability was high. Quality assessment showed high or unclear risk of bias in 36 studies. Both RCM and OCT visualize quantitative features as size, shape, content and abnormalities of hair follicles, and have potential to support clinical diagnosis and evaluate treatment effects. However, larger studies with better methodological quality are needed to implement RCM and OCT directly into clinical practice.
Topics: Humans; Tomography, Optical Coherence; Hair; Folliculitis; Acne Vulgaris; Dermatitis; Rosacea; Hair Diseases; Alopecia Areata; Microscopy, Confocal
PubMed: 37140216
DOI: 10.1111/exd.14830 -
The Journal of Dermatology Aug 2019The association between alopecia areata (AA) and autoimmune thyroid diseases (AITD) has been suggested; however, the chronological relationship between AA and AITD... (Meta-Analysis)
Meta-Analysis
The association between alopecia areata (AA) and autoimmune thyroid diseases (AITD) has been suggested; however, the chronological relationship between AA and AITD remains elusive. A systematic review and meta-analysis were conducted to assess the association between AA and AITD focusing on the prevalence of thyroid antibodies, thyroid diseases and serological thyroid dysfunctions, respectively. Data collection was performed in October 2018 by searching for articles in two electronic databases: Medline and Embase. Case-control, cohort and cross-sectional studies were included. Meta-analysis of studies eligible for quantitative synthesis was performed to estimate pooled odds ratios of thyroid antibodies; thyroid peroxidase antibody (TPO-Ab) and thyroglobulin antibody (TG-Ab), diagnosed thyroid diseases and serological thyroid dysfunctions. Four hundred and eighty nine research papers were identified and 17 studies with 262 581 patients and 1 302 655 control subjects were included for quantitative synthesis. AA was significantly associated with both TPO-Ab and TG-Ab. In comparison, there was no significant association between AA and diagnosed hypothyroidism or hyperthyroidism and serological hypothyroidism or hyperthyroidism. In conclusion, AA is significantly associated with the existence of thyroid antibodies rather than with clinical or laboratory thyroid abnormality. Lack of long-term follow-up data is a limitation of the existing published work. Our findings do not support routine screening of thyroid diseases for asymptomatic AA patients but highlight the potential future risk of AITD particularly in severe and refractory AA.
Topics: Alopecia Areata; Autoantibodies; Humans; Prevalence; Thyroid Gland; Thyroiditis, Autoimmune; Time Factors
PubMed: 31197884
DOI: 10.1111/1346-8138.14940 -
Journal of the American Academy of... May 2024
Review
PubMed: 38796079
DOI: 10.1016/j.jaad.2024.05.037 -
Journal of Clinical Medicine Jan 2023Alopecia is associated with significant psychological burden. There is limited evidence on the use of psychological interventions in conditions of hair loss. This... (Review)
Review
Alopecia is associated with significant psychological burden. There is limited evidence on the use of psychological interventions in conditions of hair loss. This manuscript systematically reviews the current state of literature on psychological treatments for quality of life, mental health, and hair growth in various forms of alopecia. PubMed and Embase were searched with predefined inclusion and exclusion criteria. Reference lists were also examined for relevant studies. Nine articles met our criteria and are included in this review. Eight of the articles related to alopecia areata and one related to scarring alopecia. Mindfulness-based stress reduction (MBSR) was found to improve quality of life-related subjective symptoms, relationship impacts, anxiety, phobia, distress, and psychological symptom intensity. Alopecia-specific collocated behavioral health (CLBH) treatment showed a trend for psychosocial improvement in areas such as appearance shame, activity avoidance, negative emotions, and coping. Hypnotherapy was found to improve anxiety and depression, quality of life measures, and alexithymia. There was also some evidence for significant hair growth with hypnosis, but the data are mixed. Psychotherapy combined with immunotherapy led to more hair growth, and supported self-confidence. Finally, coping strategies modulated the subjective burden of alopecia, and were associated with disease improvement. Further research will be necessary to better establish the efficacy and optimal administration of these interventions in alopecia.
PubMed: 36769612
DOI: 10.3390/jcm12030964 -
Drug Delivery and Translational Research Jun 2023Needle-free jet injectors are used for the intralesional treatment of various dermatological indications. However, a systematic review that evaluates the efficacy and... (Review)
Review
Needle-free jet injectors are used for the intralesional treatment of various dermatological indications. However, a systematic review that evaluates the efficacy and safety of these treatments has not been published. The objectives of this study are to evaluate the efficacy and safety of needle-free jet injections for dermatological indications and to provide evidence-based treatment recommendations. An electronic literature search was conducted in April 2022. Two reviewers independently selected studies based on predefined criteria and performed a methodological quality assessment using the Cochrane Collaborations risk-of-bias 2.0 assessment tool and Newcastle-Ottawa Scale. Thirty-seven articles were included, involving 1911 participants. Dermatological indications included scars, alopecia areata, hyperhidrosis, nail diseases, non-melanoma skin cancer, common warts, local anesthesia, and aesthetic indications. Keloids and other types of scars (hypertrophic, atrophic, and burn scars) were investigated most frequently (n = 7). The included studies reported favorable efficacy and safety outcomes for intralesional jet injector-assisted treatment with triamcinolone acetonide/hexacetonide, 5-fluorouracil, bleomycin, or hyaluronic acid. Two high-quality studies showed good efficacy and tolerability of intralesional jet injections with a combination of 5-fluorouracil and triamcinolone acetonide in hypertrophic scars and with saline in boxcar and rolling acne scars. No serious adverse reactions and good tolerability were reported in the included studies. Overall, the methodological quality of the included studies was low. Limited evidence suggests that needle-free jet injector-assisted intralesional treatment is efficacious and safe for hypertrophic and atrophic acne scars. More well-powered RCTs investigating the efficacy and safety of jet injector treatment in dermatology are warranted to make further evidence-based recommendations.
Topics: Humans; Triamcinolone Acetonide; Dermatology; Keloid; Fluorouracil; Acne Vulgaris; Treatment Outcome
PubMed: 36884194
DOI: 10.1007/s13346-023-01295-x -
Journal of Drugs in Dermatology : JDD Oct 2022Approximately 30% to 40% of alopecia areata (AA) patients have atopic dermatitis. Studies suggest that antihistamines and dupilumab may be effective treatments; however,...
BACKGROUND
Approximately 30% to 40% of alopecia areata (AA) patients have atopic dermatitis. Studies suggest that antihistamines and dupilumab may be effective treatments; however, the potential benefit of these therapies as either adjunct or monotherapy has yet to be elucidated.
OBJECTIVE
To evaluate the use of antihistamines and dupilumab in the treatment of AA.
METHODS
A literature search was conducted in August 2021 according to PRISMA guidelines. Inclusion criteria were articles describing the use of antihistamines or dupilumab for AA or those discussing AA development as an adverse event of these therapies.
RESULTS
Forty-two articles with 395 patients describe the use of antihistamines or dupilumab in AA. The most common antihistamine regimens were oxatomide 30 mg twice a day, fexofenadine 60 or 120 mg/day, and ebastine 10 mg/day; and the majority of cases reported significant hair regrowth, decreased pruritus, and erythema. Studies on the use of dupilumab for AA demonstrated remarkable hair growth in some patients (n=23), no change in others (n=3), and no new hair loss in a patient with resolved alopecia universalis (AU) (n=1). In contrast, dupilumab therapy for AD has been implicated as a cause of AA (n=21), drug-induced alopecia (n=2), and AA-like psoriasis (n=1).
CONCLUSION
Current literature is promising for the use of antihistamines as adjunct treatments for AA, while monotherapy needs to be further explored. The role of dupilumab in AA treatment and/or development also requires further research.J Drugs Dermatol. 2022;21(10):1070-1083. doi:10.36849/JDD.6553.
Topics: Alopecia; Alopecia Areata; Antibodies, Monoclonal, Humanized; Histamine Antagonists; Humans
PubMed: 36219058
DOI: 10.36849/JDD.6553 -
The Journal of Dermatological Treatment Dec 2022Alopecia areata (AA) is a non-scarring hair loss mediated by T lymphocytes. Recently, a growing number of studies have shown that Janus kinase inhibitors are effective... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Alopecia areata (AA) is a non-scarring hair loss mediated by T lymphocytes. Recently, a growing number of studies have shown that Janus kinase inhibitors are effective in the treatment of AA in children.
METHODS
A systematic review and meta-analysis were performed according to the PRISMA guidelines. Good response was defined as more than 50% decrease in Severity of Alopecia Tool (SALT) score or complete regrowth or more than 50% regrowth. Partial response was defined as 5-50% decrease in SALT score. Any response to treatment was defined as more than 5% in SALT score decrease.
RESULTS
There were 81.9% responders, 68.5% good responders, and 7.7% partial responders among the 10 included studies. The treatment duration was longer in good responders than in partial responders ( = .009). Oral route was linked to a better response to topical medication, with an odds ratio of 7.8 (95%CI 1.655-36.76). In terms of toxicity, reported adverse events included only mild symptoms. Liver transaminase elevation, upper respiratory tract infection, and eosinophilia were the most common adverse events.
CONCLUSIONS
Janus kinase inhibitors demonstrated promise in the treatment of AA in children, with the most common side effects being minor and reversible.
Topics: Child; Humans; Alopecia Areata; Janus Kinase Inhibitors; Alopecia; Administration, Oral; Drug-Related Side Effects and Adverse Reactions
PubMed: 36214579
DOI: 10.1080/09546634.2022.2133956