Real-Life Effectiveness and Safety of Baricitinib in 17 Japanese Patients With Alopecia Areata: A 60-Week Single Center Study

In this case report, an 8-year-old with severe alopecia areata and atopic dermatitis experienced significant hair regrowth and improved dermatitis symptoms after treatment with dupilumab followed by baricitinib, with no major side effects observed.

This study conducted a meta-analysis and found that among therapies for alopecia areata, baricitinib_4 mg was most likely to be effective, followed by ritlecitinib and ivarmacitinib, while other treatments like dupilumab and secukinumab were less effective.

This study found that baricitinib, taken for 24 weeks, significantly reduced alopecia severity in patients with moderate-to-severe alopecia areata, with 50% showing marked improvement and overall favorable safety and efficacy reported.

In this study, researchers identified subgroups of patients with severe alopecia areata treated with baricitinib who experienced early, gradual, or late hair regrowth, finding that response was influenced by baseline disease severity and duration of hair loss.

This study aimed to evaluate the outcomes of switching between two JAK inhibitors, tofacitinib and baricitinib, in treating alopecia areata, due to the lack of data on their comparative efficacy.

In this study, 40.9% of patients taking 4 mg baricitinib and 21.2% taking 2 mg achieved significant hair regrowth over 52 weeks, indicating potential long-term benefits for adults with severe alopecia areata without introducing new safety concerns.

This review discusses the role of the JAK/STAT pathway in managing alopecia areata and emphasizes the need for further research to determine the ideal JAK inhibitor, as it reports no new clinical results.

This study in Japan identified an estimated prevalence of alopecia areata between 1.45% and 2.18%, highlighting a significant psychological burden and potential unmet need for treatment among affected individuals.

In two phase 3 trials, this study found that oral baricitinib significantly improved hair regrowth compared to placebo in adults with severe alopecia areata after 36 weeks, though longer trials are needed to ascertain its long-term efficacy and safety.

This study suggests that female patients with alopecia areata, especially those with nail abnormalities and atopic diseases, may have higher rates of coexisting autoimmune diseases.

In this study, selective inhibition of JAK3 signaling effectively prevented and reversed alopecia areata in a mouse model, while JAK2 inhibitors did not restore hair growth.

This study concluded that the ClinRO and PRO measures, along with their photoguides, offer clear and meaningful assessments for patients with alopecia areata concerning eyebrow, eyelash, and nail appearance, as well as eye irritation.

This study developed the Alopecia Areata Investigator Global Assessment (AA-IGA) to measure scalp-hair loss in alopecia areata patients, incorporating perspectives of both patients and clinicians to define treatment success.