May 2026 in “SKIN The Journal of Cutaneous Medicine” In this case report, a 60-year-old woman with alopecia areata and type 1 diabetes experienced hypoglycemic seizures after starting baricitinib, though reducing the dose alleviated these episodes; the study highlights the need for caution and glucose monitoring when using JAK inhibitors in at-risk patients.
September 2023 in “Journal of the American Academy of Dermatology” CTP-543 significantly improved eyebrow and eyelash regrowth and patient satisfaction in adults with alopecia areata.
March 2018 in “Suez Canal University Medical Journal” This review examines targeting the JAK-STAT pathway in inflammatory skin diseases, highlighting existing JAK inhibitors and potential developments, but presents no new experimental or clinical results.
May 2018 in “White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York)” In this study, researchers found that alopecia areata patients show a significant reduction in suppressive regulatory T-cells and an increase in inflammatory T-cell populations, suggesting an immunological imbalance contributing to the disease.
63 citations
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July 2024 in “Journal of the American Academy of Dermatology” This study found that the oral JAK1/JAK2 inhibitor deuruxolitinib effectively promoted hair regrowth and patient satisfaction in adults with alopecia areata over 24 weeks.
November 2025 in “Biomedicines” This study found that the JAK1 inhibitors baricitinib and abrocitinib significantly reduced mechanical alloknesis in a murine model of atopic dermatitis, whereas the JAK2 inhibitor AZ960 had no effect.
June 2024 in “Neuromuscular Disorders” In this report, a 58-year-old woman with ocular myasthenia gravis experienced complete resolution of symptoms and hair regrowth after six months of treatment with the JAK inhibitor baricitinib, highlighting a potential new therapeutic approach for this condition.
April 2026 in “Journal of Cancer” This review reports that the compound Cepharanthine shows promise as a cancer therapy by inducing cell death, arresting cell growth, inhibiting tumor progression, modulating key oncogenic pathways, and reversing multidrug resistance, suggesting its potential for further investigation in oncology.
November 2025 in “FEBS Open Bio” In this study, the researchers using Shh-GFP+/- mice found that cyclophosphamide-induced alopecia involves the JAK/STAT1 pathway, where STAT1 binds the Shh gene promoter, decreasing Shh-expressing cells in hair follicles. Treatment with JAK inhibitors helped rescue hair loss, implicating the JAK/STAT1 pathway in this process.
January 2024 in “Journal of Clinical Images and Medical Case Reports” This article discusses frontal fibrosing alopecia as a type of Lichen planopilaris marked by gradual hair loss at the front of the scalp but reports no new clinical results.
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.
3 citations
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March 2020 in “International Journal of Dermatology” This correspondence about the treatment of chronic alopecia areata with tildrakizumab reports no clinical results; the authors present an open-label pilot study setup.
223 citations
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September 2018 in “Rheumatology” This review examines clinical data on the efficacy and safety of JAK inhibitors used for immune-mediated conditions beyond rheumatoid arthritis, highlighting their potential therapeutic roles in various inflammatory diseases.
159 citations
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October 2015 in “Science Advances” This study observed that applying JAK-STAT pathway inhibitors to mouse and human skin led to rapid hair growth by inducing the anagen phase of hair follicles.
116 citations
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February 2017 in “Journal of the American Academy of Dermatology” This systematic review found that Janus kinase inhibitors have shown beneficial effects for psoriasis and alopecia areata, with promising preliminary results in other skin conditions, though more research is needed to define dosing and safety profiles.
71 citations
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May 2007 in “The FASEB journal” This study found that human hair follicles express erythropoietin and its receptor, suggesting these follicles may use erythropoietin signaling to modulate apoptosis under stress conditions like hypoxia and chemotherapy.
68 citations
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November 2015 in “The Journal of Allergy and Clinical Immunology” In this study, three patients with extensive alopecia areata showed varying degrees of hair regrowth after 20 weeks of treatment with ustekinumab, a cytokine-targeting therapy.
49 citations
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August 2018 in “International Journal of Dermatology” In this phase I study, partial hair regrowth was observed in patients with alopecia universalis using topical JAK inhibitors, though more research is needed to confirm potential as a treatment alternative to clobetasol.
41 citations
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November 2013 in “Experimental Dermatology” This study found that leptin acts as an inducer of the anagen phase in hair follicles, suggesting its role as a potential player in hair biology.
25 citations
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March 2014 in “Experimental Dermatology” Leptin helps start the growth phase of hair.
16 citations
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July 2020 in “International Journal of Molecular Sciences” This study found that ruxolitinib modulated inflammatory changes and stimulated growth factor signals by blocking the JAK-STAT pathway in an in vitro model of alopecia areata.
14 citations
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March 2022 in “Journal of inflammation research” This review discusses the application and potential of baricitinib, a JAK1/2 inhibitor, for treating dermatological diseases like alopecia areata and reports no new clinical results.
9 citations
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July 2017 in “Journal of medical case reports” This study reports the first case of eyelash elongation and thickening in a patient with hypereosinophilic syndrome taking the Janus kinase inhibitor ruxolitinib.
8 citations
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October 2022 in “Dermatology practical & conceptual” This source reports that tofacitinib and ruxolitinib showed potential efficacy and acceptable safety profiles in treating various autoimmune disorders, including alopecia areata and psoriasis, based on a review of clinical studies, while recommending physicians consider the individual risks and benefits.
8 citations
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May 2017 in “Singapore Medical Journal” A Korean woman with complete hair loss regrew her hair after taking tofacitinib, with no side effects.
5 citations
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April 2011 in “The Lancet” This case report describes a 60-year-old man with a rare 46, XX karyotype who presented with cerebellar infarct and polycythaemia, leading to further endocrine investigations after adrenal gland enlargement was found.
3 citations
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May 2023 in “Clinical drug investigation” This study reviewed the safety of JAK inhibitors for alopecia areata, finding that common side effects included headache and acne, with varying risks for respiratory infections and no increased risk of serious adverse events.
2 citations
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April 2023 in “South East European Journal of Immunology” This pilot study found elevated levels of leptin and other proinflammatory molecules in the serum of melanoma patients, suggesting a potential role for leptin in melanoma progression and a possibility for targeting it in adjuvant therapy.
2 citations
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October 2018 in “Archives of Dermatological Research” The researchers reported that topical tofacitinib in mice increased hair follicles in the growth phase and boosted noggin and BMP4 mRNA expressions, compared to a vehicle and minoxidil.
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.