23 citations
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October 2015 in “Plastic and reconstructive surgery/PSEF CD journals” This article reviews the author's experience and favored techniques for using Radiesse in cosmetic treatments but reports no new clinical trial results.
2 citations
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June 2024 in “Dermatology” This study found that patients receiving active ritlecitinib doses reported greater satisfaction with hair growth compared to placebo, with high agreement observed between clinician evaluations of scalp hair improvement and patient satisfaction through week 48.
This study suggests that the prevalence of red beards in individuals with dark hair may be explained by Thayer’s Theorem of countershading.
4 citations
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October 2020 in “Animal Bioscience” This study concluded that using a can containing beans as environmental enrichment for Rex rabbits improved their growth performance, carcass traits, meat quality, and hair follicle development compared to other enrichment materials or no enrichment.
July 2025 in “The Journal of Dermatology” This study identified common and unexpected adverse events associated with ritlecitinib in real-world use, providing insights into its safety profile for treating severe alopecia areata.
March 2026 in “American Journal of Clinical Dermatology” In this study, ritlecitinib 50 mg produced clinically meaningful improvements in scalp hair regrowth over three years for patients aged 12 and older with severe alopecia areata, with 65.1% showing substantial hair regrowth and 31.2% achieving complete regrowth, while also maintaining a consistent safety profile.
November 2023 in “SKIN The Journal of Cutaneous Medicine” This study assessed ritlecitinib's effects on sustained hair regrowth in patients with alopecia areata who showed improvement at 24 weeks, confirming ongoing benefits through 48 weeks for scalp, eyebrow, and eyelash hair regrowth in this post hoc analysis.
1 citations
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September 2023 in “Journal of the American Academy of Dermatology” In this study, patients with alopecia areata who didn't initially respond to ritlecitinib at Week 24 showed improved response rates by Week 48, with up to 34% achieving better hair regrowth outcomes.
December 2023 in “Journal of Ayub Medical College Abbottabad” In this study, Ritlecitinib was reported as a newly approved treatment for alopecia areata that can be used in patients aged 12 and older; after 24 weeks, it resulted in 80% or more scalp hair coverage in treated patients compared to a placebo.
1 citations
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August 2024 in “British Journal of Dermatology” This study found that after 15 months of treatment with ritlecitinib, patients with alopecia areata and less than 95% initial hair loss experienced significant hair regrowth, though those with more extensive hair loss showed more variable improvement.
3 citations
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July 2025 in “Clinical and Experimental Dermatology” This study reported that patients with alopecia areata treated with ritlecitinib in a real-life setting had a higher rate of positive response on the Severity of Alopecia Tool score compared to those in the ALLEGRO trial.
1 citations
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November 2025 in “American Journal of Clinical Dermatology” This study reports that long-term treatment with ritlecitinib is generally well tolerated for up to approximately five years in patients aged 12 and older with alopecia areata, with the safety profile aligning with previous data from the ALLEGRO clinical trials.
May 2025 in “CPT Pharmacometrics & Systems Pharmacology” This study examined the safety profile of ritlecitinib, a drug for alopecia areata, and found that it does not cause significant QTc prolongation or severe lymphopenia, with no unique safety risks expected in adolescents.
7 citations
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January 2021 in “Frontiers in genetics” This study suggests an association between DNA methylation changes in hair follicles and inherited color dilution in Rex rabbits, contributing to a deeper understanding of epigenetic influences on rabbit pigmentation.
July 2023 in “SKIN The Journal of Cutaneous Medicine” This study found that some patients with alopecia areata who did not respond to ritlecitinib treatment by Week 24 achieved a positive response with continued therapy by Week 48, with tolerable side effects.
July 2025 in “SKIN The Journal of Cutaneous Medicine” This study reported that ritlecitinib was generally well tolerated over 72 months in patients aged 12 and older with alopecia areata, with adverse events like headache and nasopharyngitis observed, and safety outcomes consistent with previous studies.
June 2026 in “Journal of health economics and outcomes research” This study found that ritlecitinib 50 mg offered a lower cost per responder than baricitinib 2 or 4 mg for treating severe alopecia areata at Weeks 24 and 52, potentially influencing reimbursement decisions.
48 citations
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July 2023 in “Pediatric Dermatology” This study found that among adolescents with alopecia areata and significant hair loss, treatment with ritlecitinib resulted in greater hair regrowth and self-reported improvement compared to placebo over 48 weeks, with common side effects including headache, acne, and nasopharyngitis.
1 citations
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October 2025 in “International Journal of Dermatology” In this study, participants receiving a 50-mg maintenance dose of ritlecitinib reported greater improvements in emotional and activity limitations due to hair loss by Week 48 compared to those on a 10-mg dose.
July 2026 in “Skin Appendage Disorders” In this study, patients with treatment-refractory alopecia areata who received oral ritlecitinib 50 mg daily experienced significant hair regrowth, with 52.6% achieving complete scalp regrowth and improved Severity of Alopecia Tool scores, indicating its potential effectiveness in real-world settings.
Ritlecitinib significantly regrows scalp hair in people with alopecia areata.
4 citations
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November 2023 in “SKIN The Journal of Cutaneous Medicine” In this study, ritlecitinib, an oral JAK3/TEC inhibitor, was evaluated for safety in patients aged 12 and older with alopecia areata across four clinical trials up to 36 months, showing a safety profile with reported adverse events and lab abnormalities summarized per dosing groups.
November 2025 in “SKIN The Journal of Cutaneous Medicine” In this study, nearly one-third of patients with severe alopecia areata treated with ritlecitinib achieved complete scalp hair regrowth at least once over three years, and most maintained regrowth or stayed at low hair loss levels subsequently.
1 citations
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September 2023 in “Journal of the American Academy of Dermatology” This study reported that most patients with alopecia areata who responded to ritlecitinib treatment by achieving a SALT score ≤20, SALT score ≤10, or improvements in eyebrow and eyelash assessments at Week 24 maintained their responses through Week 48.
4 citations
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October 2024 in “American Journal of Clinical Dermatology” This study found that ritlecitinib improved patient-reported outcomes related to hair growth in individuals with alopecia areata, with some experiencing clinically meaningful hair regrowth, although changes in emotional symptoms and activity limitations were minimal and similar across treatment groups.
November 2022 in “LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas)” Platelet-rich fibrin speeds up burn wound healing in rabbits.
June 2026 in “British Journal of Dermatology” In this real-world study, 27% of alopecia areata patients treated with ritlecitinib achieved a target SALT score, a result consistent with clinical trial findings, highlighting the value of patient-reported outcomes in understanding treatment impact beyond traditional measures.
7 citations
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October 2024 in “Journal of the American Academy of Dermatology” This source reported that patients who initially responded to ritlecitinib treatment showed sustained hair regrowth through week 48, with up to one-third of those not meeting target efficacy at week 24 also achieving a response with continued treatment.
September 2023 in “Dermatology and therapy” In this phase 2b/3 trial, ritlecitinib showed effectiveness in treating alopecia areata patients with varying hair loss profiles, significantly improving patient-reported outcomes for hair regrowth and satisfaction compared to placebo, regardless of the hair loss type and extent at baseline.
1 citations
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March 2026 in “American Journal of Clinical Dermatology” In this Italian retrospective study, ritlecitinib 50 mg/day showed effectiveness and good tolerability for treating severe alopecia areata over 24 weeks, achieving significant hair regrowth particularly in adolescents, as well as improvements in eyebrows, eyelashes, nails, and quality of life, with mostly mild adverse effects.