2 citations
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September 2023 in “Journal of the American Academy of Dermatology” CTP-543 effectively promotes hair regrowth in adults with moderate to severe alopecia areata.
June 2020 in “Dermatologic therapy” Using Janus kinase inhibitors (JAKi) in COVID-19 treatment requires careful consideration due to their immunosuppressive effects.
5 citations
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January 2021 in “Inflammatory Bowel Diseases” In this report, a female patient with ulcerative colitis, alopecia areata, and pyoderma gangrenosum showed improvement in all three conditions after being treated with tofacitinib.
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.
May 2026 in “Journal of Human Immunity” In this study, researchers found that the JAK1/2 inhibitor ruxolitinib helped normalize tissue-specific autoimmunity in APECED patients by reducing inflammation and immune cell accumulation, but it was also linked to subclinical side effects like anemia and weight gain.
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.
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.
September 2022 in “XXXIX Congresso Brasileiro de Reumatologia” In this case report, a 42-year-old woman with cutaneous dermatomyositis showed significant improvement, including reduction of erythema, pruritus, and scaling, after starting JAK inhibitor tofacitinib, especially when conventional systemic treatments failed and intravenous immune globulin wasn't viable.
97 citations
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January 2020 in “Advances in chronic kidney disease” This review describes the toxicities associated with calcineurin inhibitors, used in kidney transplantation, which include nephrotoxicity, cardiovascular and endocrine issues, and quality of life impacts, without reporting new clinical results.
February 2024 in “PloS one” This review concluded that oral tofacitinib and adalimumab are promising treatments for cicatricial alopecia, showing effectiveness in improving signs and symptoms but requiring regular monitoring for adverse effects. The authors emphasize the need for further extensive studies to solidify these findings.
1 citations
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January 2024 in “Curēus” This case study reported significant clinical improvement in a 26-year-old male with dissecting cellulitis of the scalp after treatment with upadacitinib, suggesting that JAK inhibitors may be a promising option for refractory cases, where standard treatments have limited success.
July 2026 in “Journal of the American Academy of Dermatology” JAK inhibitors are generally safe for treating alopecia areata.
1 citations
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July 2026 in “Dermatology and Therapy” In this study, JAK inhibitors for treating alopecia areata and atopic dermatitis were generally well tolerated in a real-world setting, with most adverse events being mild or moderate and rare serious cases resembling the general population incidence.
95 citations
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September 2019 in “Brain” In this study, two patients with refractory juvenile dermatomyositis improved clinically and in disease activity after receiving the JAK inhibitor tofacitinib, showing potential effects in managing the condition.
37 citations
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October 2017 in “Clinical and Experimental Dermatology” This article discusses the potential of oral tofacitinib as a treatment for atopic dermatitis, alopecia areata, and vitiligo, without presenting new clinical results.
1 citations
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December 2023 in “Molecules/Molecules online/Molecules annual” This review summarized the latest knowledge suggesting that Janus kinase inhibitors may have therapeutic potential for treating skin diseases like atopic dermatitis and psoriasis, especially when conventional therapies do not work.
June 2026 in “Journal of Cosmetic and Regenerative Medicine” This study found that Janus kinase inhibitors significantly improve treatment outcomes for complex skin conditions like atopic dermatitis and alopecia areata, but their implementation requires careful safety considerations, including risk assessments for cardiovascular, malignant, and reproductive issues.
1 citations
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May 2021 in “Annals of the rheumatic diseases” This study found that tofacitinib may be effective for treating pediatric rheumatic diseases, with especially promising results in patients with autoinflammatory diseases, arthritis and alopecia, and juvenile dermatomyositis.
11 citations
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April 2015 in “EBioMedicine” This research highlights that JAK inhibitors, such as baricitinib, may effectively reverse symptoms of alopecia areata by targeting specific immune pathways, though safety and efficacy require further investigation.
4 citations
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January 2020 in “PubMed” This source reports that JAK inhibitors, such as ruxolitinib, baricitinib, and tofacitinib, have led to hair regrowth in alopecia areata patients and animal models, but their long-term safety and effectiveness remain uncertain, with ongoing trials to further investigate these factors.
July 2024 in “Medical alphabet” In this case report, a 9-year-old with alopecia areata experienced full hair regrowth after six months of oral tofacitinib, with no recurrence or significant side effects for a year post-treatment.
18 citations
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August 2024 in “eLife” This study investigated immune dysregulation in individuals with Down syndrome and found that treatment with the JAK inhibitor tofacitinib improved skin conditions like alopecia areata and reduced autoimmune markers without severe side effects. Additional research is necessary to understand its broader impacts.
124 citations
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October 2019 in “Frontiers in Immunology” This review discusses the role of the JAK-STAT pathway in autoimmune skin diseases and suggests potential therapeutic benefits of JAK inhibitors, but reports no new experimental results.
March 2026 in “Lithuanian University of Health Sciences” This review concluded that JAK inhibitors are effective in achieving meaningful hair regrowth in moderate to severe alopecia areata, although continuous therapy is often needed to maintain the benefits.
June 2024 in “Poster presentations” This study found that Janus kinase inhibitors were effective in inducing clinical and biochemical remission in patients with Ulcerative Colitis while exhibiting an expected safety profile, though 30% discontinued treatment due to adverse events or lack of efficacy.
2 citations
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December 2024 in “eLife” This study observed that individuals with Down syndrome exhibit early immune dysregulation, including multi-organ autoimmunity and hypercytokinemia, and found that the JAK inhibitor tofacitinib showed a good safety profile and reduced skin pathology in a Phase II trial.
8 citations
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March 2023 in “PubMed” This review discusses JAK inhibitors as promising new treatments for various chronic dermatologic conditions, including some recent drug approvals, and reports no new clinical results.
63 citations
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July 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” In this review, the researchers reported that JAK inhibitors, originally approved by the FDA for other uses, have shown effectiveness in reversing hair loss in patients with moderate to severe alopecia areata, based on current preclinical and clinical studies.
April 2025 in “The Journal of Dermatology” This study provides initial insights into the use of JAK inhibitors for CTCL, reporting some cases of symptom improvement, but highlights the need for further research on their association with CTCL development and safety.
701 citations
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August 2014 in “Nature medicine” This study found that JAK inhibitors promote hair regrowth in both mice and human alopecia areata cases by blocking key immune pathways involved in disease development.