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Ritlecitinib

also Litfulo, PF-06651600

JAK3/TEC kinase inhibitor approved for severe alopecia areata (not pattern hair loss), sold as Litfulo

Ritlecitinib, sold under the brand name Litfulo, is a medication used for the treatment of severe alopecia areata. Ritlecitinib is a kinase inhibitor which inhibits Janus kinase 3 and tyrosine kinase.

Information, not medical advice. Talk to a licensed doctor or pharmacist before starting or changing a treatment.

Research 10

  1. Ritlecitinib and brepocitinib demonstrate significant improvement in scalp alopecia areata biomarkersˆThe ‰journal of allergy and clinical immunology/Journal of allergy and clinical immunology/˜The œjournal of allergy and clinical immunology · 2021 · 98 citations
  2. Evaluating the Therapeutic Potential of Ritlecitinib for the Treatment of Alopecia AreataDrug Design Development and Therapy · 2022 · 60 citations
  3. Beyond Hair Regrowth: Interpreting the Psychosocial Impact of Ritlecitinib in Alopecia AreataInternational Journal of Dermatology · 2026
  4. A Plain Language Summary on Ritlecitinib Treatment for Adults and Adolescents with Alopecia AreataImmunotherapy · 2023 · 7 citations
  5. Ritlecitinib: First ApprovalDrugs · 2023 · 102 citations
  6. Characterizing the relationships between patient‐reported outcomes and clinician assessments of alopecia areata in a phase 2a randomized trial of ritlecitinib and brepocitinibJournal of the European Academy of Dermatology and Venereology · 2022 · 28 citations
  7. Efficacy and safety of ritlecitinib in adults and adolescents with alopecia areata: a randomised, double-blind, multicentre, phase 2b–3 trialThe Lancet · 2023 · 308 citations
  8. Which is the ideal JAK inhibitor for alopecia areata – Baricitinib, tofacitinib, ritlecitinib or ifidancitinib - Revisiting the immunomechanisms of the JAK pathwayIndian Dermatology Online Journal · 2023 · 37 citations
  9. Patient satisfaction with hair regrowth in a study of ritlecitinib: a plain language summaryImmunotherapy · 2025
  10. Hydrogel forming microneedles loaded with VEGF and Ritlecitinib/polyhydroxyalkanoates nanoparticles for mini-invasive androgenetic alopecia treatmentBioactive Materials · 2024 · 105 citations
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Posts 7

  1. Anyone else taking Litfulo (ritlecitinib) to treat their alopecia?Reddit · 11 Oct 2023
  2. LITFULO (ritlecitinib tosylate)Reddit
  3. So we have 20k dollars human like machines available but no new effective treatment for hairloss since finasteride :)Reddit · 14 Oct 2024
  4. Most promising cures for baldness as of May 2026Reddit · 22 May 2026
  5. Any new treatment or hope for hairloss?Reddit · 28 Sept 2023
  6. If RU58841 is such an effective anti androgenReddit · 6 Jan 2024
  7. Which 2026 hair‑loss treatments have the strongest evidence so far? (minoxidil/finasteride vs. clascoterone, PP405, Re:You’s NV‑623/624, AMP‑303, RU58841)Reddit · 18 Jun 2026
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