12 citations
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June 2023 in “JAMA network open” In this study of seven randomized clinical trials, JAK inhibitors were associated with improved hair regrowth outcomes in alopecia areata patients compared to placebo, with oral administration being more effective than external application, though longer trials are needed to confirm safety and effectiveness.
July 2025 in “Journal of Investigative Dermatology” Upadacitinib effectively treats pyoderma gangrenosum.
17 citations
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January 2019 in “Journal of cutaneous medicine and surgery” This review discusses the potential of JAK inhibitors for treating alopecia areata and reports case study evidence of their effectiveness, but formal clinical trials are needed for more definitive conclusions.
14 citations
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November 2016 in “Annals of Internal Medicine” Tofacitinib, an arthritis drug, helped hair growth in alopecia universalis but long-term safety needs more research.
1 citations
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September 2024 in “IP Indian Journal of Clinical and Experimental Dermatology” This source discusses the potential of topical JAK inhibitors, like tofacitinib, as effective treatments for autoimmune skin diseases, emphasizing their superior safety profile and minimal adverse effects compared to conventional systemic therapies.
238 citations
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November 2016 in “Journal of The American Academy of Dermatology” In this study, tofacitinib was reported to improve scalp hair regrowth in patients with severe alopecia areata, alopecia totalis, and alopecia universalis, showing a higher response in alopecia areata.
January 2026 in “Dermatology Reports” This case study reports that a 15-year-old male with multiple autoimmune conditions showed significant improvement in skin and gastrointestinal symptoms, along with hair regrowth, after 16 weeks of treatment with the JAK-1 inhibitor upadacitinib, demonstrating its potential in managing complex autoimmune disorders.
20 citations
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December 2020 in “Actas Dermo-Sifiliográficas” This review examines the JAK/STAT signaling pathway's significance in inflammatory skin diseases and evaluates the efficacy and safety of oral and topical JAK inhibitors for treating vitiligo and alopecia areata. Results are not reported in this study.
5 citations
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May 2024 in “Journal of Allergy and Clinical Immunology Global” In this case study, a 29-year-old male with severe atopic dermatitis and alopecia universalis experienced an excellent response to treatment with upadacitinib, indicating it may be a promising option for similar patients.
April 2017 in “Leukemia research” This study reported that tofacitinib may be a promising treatment for alopecia areata in adolescents, showing significant hair regrowth with mild adverse effects in a retrospective review.
4 citations
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January 2022 in “Dermatologic Therapy” In this retrospective analysis, the authors reported that off-label tofacitinib treatment in 35 alopecia areata patients demonstrated safety, with no serious adverse events, and effectiveness, with 83.9% showing significant scalp regrowth and 32.3% achieving near total or total regrowth.
5 citations
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June 2019 in “British Journal of Dermatology” No results are provided in this article as it lacks an available abstract, making it unclear what effects apremilast and tofacitinib have in a humanized mouse model of alopecia areata.
16 citations
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January 2020 in “Annals of the rheumatic diseases” In this study, baricitinib improved the resolution of arthritis or rash in patients with systemic lupus erythematosus, but outcomes for skin involvement like alopecia were not reported.
July 2026 in “Journal of the European Academy of Dermatology and Venereology” JAK inhibitors may reduce depression risk in alopecia areata patients.
June 2025 in “Journal of Education Health and Sport” This review discusses the role of JAK inhibitors in treating alopecia areata by targeting the JAK/STAT pathway and highlights the promising results but also ongoing challenges such as relapse risk and side effects.
October 2023 in “The Open Dermatology Journal” Baricitinib is effective for severe alopecia areata with manageable side effects, mainly upper respiratory infections.
May 2023 in “International Journal of Trichology” This case report details the successful use of oral tofacitinib for six months, which led to significant hair regrowth in an adult male Indian patient with extensive and refractory alopecia areata, highlighting tofacitinib's potential in managing resistant cases within this population.
December 2024 in “The American Journal of Gastroenterology” This case report highlights the successful use of tofacitinib in a 12-year-old patient with Crohn’s disease who developed alopecia areata following infliximab treatment, showing significant hair regrowth and complete resolution of alopecia within eight months while maintaining remission of Crohn’s symptoms.
1 citations
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October 2025 in “Journal of Allergy and Clinical Immunology” A JAK1 variant causes hair loss, skin issues, and thyroid disease, but treatment with a specific inhibitor can help.
1 citations
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May 2024 in “Pediatric Blood & Cancer” In this case study, a transition to the MEK inhibitor trametinib successfully stabilized disease and reduced toxicity in a patient with refractory kaposiform lymphangiomatosis after prolonged sirolimus and steroid treatment.
1 citations
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July 2019 in “Medicina Clínica (English Edition)” Tofacitinib partially improved hair regrowth in a patient with severe hair loss.
1 citations
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October 2023 in “Clinical, cosmetic and investigational dermatology” In this report, a 35-year-old female with palmoplantar pustulosis undergoing secukinumab treatment developed alopecia areata, a rare side effect attributed to paradoxical reactions with IL-17 inhibitors; switching to tofacitinib improved both conditions.
71 citations
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May 2024 in “New England Journal of Medicine” This study investigated the impact of the JAK inhibitor ruxolitinib on APS-1 patients, reporting that treatment decreased excessive T-cell-derived interferon-γ, normalized inflammatory markers, and led to remission of several autoimmune symptoms without serious adverse effects.
September 2025 in “Acta Dermato Venereologica” Baricitinib can help improve hair loss and skin color issues in people with Down syndrome.
2 citations
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July 2023 in “Journal of cosmetic dermatology” In this study, JAK inhibitors like baricitinib and ruxolitinib were found to be more effective and caused fewer discontinuations due to adverse events in adults with alopecia areata compared to therapies like dupilumab and apremilast, highlighting the need for more high-quality comparative trials.
10 citations
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January 2023 in “Acta dermato-venereologica” In this study, deuruxolitinib and baricitinib showed promising efficacy in treating alopecia areata, but effectiveness varied with dosage and further trials are needed to confirm these results.
July 2026 in “American Journal of Clinical Dermatology” In this study, oral JAK inhibitors were found to be significantly more effective than placebo in promoting hair regrowth among adults and adolescents with moderate-to-severe alopecia areata, although they were associated with an increased risk of adverse events.
In this study using C3H/HeJ mice, a single subcutaneous injection of the fusion protein PTH-CBD increased anagen hair follicle counts and promoted hair regrowth comparably to daily oral ruxolitinib, potentially by enhancing beta-catenin production and stimulating anagen transition.
June 2024 in “Archives of Medical Science” Telitacicept effectively improved hair regrowth in a woman with lupus and alopecia.
8 citations
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July 2020 in “Dermatologic Therapy” Tofacitinib may effectively treat folliculitis decalvans.