222 citations
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September 2016 in “JCI insight” This research overview highlights that although JAK inhibitors show promise as potential treatments for alopecia areata based on recent insights into the disease mechanism, their efficacy has not yet been thoroughly evaluated in a systematic manner.
24 citations
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October 2018 in “JAAD Case Reports” This paper reviews the challenges of treating alopecia areata affecting eyelashes and discusses the risks associated with traditional therapies; it reports no new clinical results.
August 2025 in “Scientific Electronic library online (Sciences Carlos III Health Institute)” This study reviewed various studies and concluded that Janus kinase inhibitors, particularly tofacitinib, seem to promote hair regrowth in about half of patients with alopecia areata, though expected class-specific adverse effects were observed.
February 2026 in “Frontiers in Immunology” This case report highlights significant improvement in a patient with severe alopecia areata who responded well to ivarmacitinib after a suboptimal response to another JAK inhibitor, tofacitinib, suggesting ivarmacitinib as a potential alternative for tofacitinib-refractory cases.
1 citations
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May 2017 in “Journal of the American Academy of Dermatology” Oral tofacitinib may be an effective and tolerable treatment for some people with severe alopecia areata.
November 2023 in “Indian Dermatology Online Journal” This study found that tofacitinib was safe and effective for patients with severe or treatment-resistant alopecia areata, alopecia totalis, and alopecia universalis, resulting in significant hair regrowth for most participants.
39 citations
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January 2019 in “Journal of the American Academy of Dermatology” In this study, three children with severe alopecia treated with systemic tofacitinib showed significant hair regrowth, suggesting it may be a potential option for those unresponsive to conventional therapy.
40 citations
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September 2018 in “Journal of the American Academy of Dermatology” This letter discusses the emerging use of Janus kinase inhibitors, specifically oral tofacitinib, for treating alopecia areata in children, but reports no new clinical findings.
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.
June 2023 in “British journal of dermatology/British journal of dermatology, Supplement” This study observed that among UK alopecia areata patients seeking JAK inhibitor treatments before public funding, many sourced medication from abroad due to high costs, with variable response rates and significant reliance on social media for information on accessing treatments.
5 citations
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March 2021 in “Hepatitis Monthly” This study found that tenofovir alafenamide fumarate (TAF) is an effective and safer alternative to tenofovir disoproxil fumarate (TDF) for chronic hepatitis B, with fewer long-term side effects like nephrotoxicity and decreased bone density.
January 2016 in “The Australian Pharmacist” Tofacitinib might be used to treat hair loss.
11 citations
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November 2019 in “Clinical Case Reports” This study highlights that while there are no FDA- or ANVISA-approved treatments for children with alopecia areata, JAK inhibitors are emerging as a promising therapeutic option for this population.
January 2024 in “Journal of Crohn's and colitis” This study reports that JAK inhibitors were effective in inducing remission in ulcerative colitis patients and presented an acceptable safety profile with a range of manageable side effects.
2 citations
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April 2023 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” This systematic review evaluated the safety of JAK-inhibitors for alopecia areata, finding that most adverse events were mild and systemic formulations were well-tolerated; however, increased rates of certain infections and laboratory abnormalities were noted, with isolated severe cases but no fatal outcomes.
29 citations
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December 2019 in “Expert review of clinical pharmacology” This review discusses the evidence supporting Janus kinase inhibitors for alopecia areata and highlights ongoing optimism as phase 3 trials begin, with no new clinical results reported.
January 2024 in “Dermatologic therapy” In this study, pediatric patients with alopecia areata treated with systemic tofacitinib showed significant improvement at 12 months, but the small sample size and retrospective design limit conclusions about its effectiveness.
May 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” This study revealed that tofacitinib may inhibit CD8+ T cell infiltration in alopecia areata by modulating the linoleic acid metabolism-Mg2+ pathway, providing new insights for potential treatments and diagnosis.
June 2017 in “Journal of the American Academy of Dermatology” In this retrospective study, tofacitinib was found to be effective and well-tolerated for treating severe alopecia areata, with 77% of patients achieving a clinical response over 4-20 months, though results were more favorable for patients with less extensive hair loss.
In this case report, interferon-alpha treatment for a man with hemophilia and hepatitis C was associated with unexpected diffuse hair growth, likely caused by the medication.
9 citations
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August 2018 in “JAAD Case Reports” This article discusses alopecia areata, highlighting its autoimmune nature and the lack of FDA-approved treatments, without providing new research findings.
April 2025 in “Acta Dermato Venereologica” In this real-world study, JAK inhibitors like abrocitinib and tofacitinib led to substantial hair regrowth in 61% of alopecia areata patients over a median of 16 months, with 75% of non-responders achieving regrowth after switching medications; however, two serious adverse events were noted.
November 2020 in “Dubai medical journal” This case report described a 24-year-old with alopecia totalis who saw full scalp hair regrowth by the 9th month while using oral tofacitinib, which was well-tolerated and did not show serious adverse effects. Longer-term studies are needed to confirm its overall effectiveness for alopecia totalis.
April 2026 in “Clinical and Translational Science” In this multi-center, retrospective cohort study, researchers found that tofacitinib significantly reduced SALT scores and improved eyebrow and eyelash regrowth in patients with refractory alopecia areata after 12 weeks, with greater efficacy observed in severe cases and consistent results across pediatric and adult populations.
3 citations
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April 2016 in “Journal of Investigative Dermatology” In this open-label trial, tofacitinib showed dramatic clinical responses in most patients with moderate-to-severe alopecia areata, supporting further research into JAK inhibitors for this condition.
48 citations
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November 2017 in “Journal of the American Academy of Dermatology” Tofacitinib 2% ointment helped hair regrow in 3 out of 10 patients with alopecia areata, but caused side effects like scalp irritation and raised cholesterol in some.
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.
7 citations
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March 2021 in “Journal of the American Academy of Dermatology” This study observed that some children and young adults with alopecia areata experienced flares during long-term tofacitinib treatment, despite initial successful hair regrowth.
11 citations
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February 2022 in “JAAD case reports” This case report observed hair regrowth following the treatment of alopecia universalis and atopic dermatitis with tofacitinib, a JAK inhibitor.
This study assessed the effectiveness of JAK inhibitors in Jordanian patients with alopecia areata, finding that while both tofacitinib and baricitinib improved SALT scores, baricitinib showed greater improvement and a trend towards better hair regrowth, particularly with longer treatment durations.