King, Brett
McMichael, Amy
Sinclair, Rodney
Vañó-Galvan, Sergio
Wolk, Robert
Woodworth, Deborah
Soma, Koshika
Robbana, Feriel
Lejeune, Alexandre
Napatalung, Lynne
Law, Ernest
Wajsbrot, Dalia
Wang, Cunshan
Roychoudhury, Satrajit
Clinical trials referenced in this document:
Documents that mention this clinical trial
Rationale and Design of a Novel, Phase 3, External and Synthetic Placebo-Controlled Clinical Trial of Ritlecitinib 50 mg and 100 mg for Alopecia Areata
https://doi.org/10.1007/s13555-025-01543-7
Funding for this research was provided by:
Pfizer
Article History
Received: 21 July 2025
Accepted: 4 September 2025
First Online: 14 October 2025
Declarations
:
: Brett King has served on advisory boards and/or is a consultant and/or is a clinical trial investigator and/or is on a data monitoring committee for AbbVie, AltruBio Inc, Almirall, Amgen, AnaptysBio, Apogee Therapeutics, Aquestive, Arena Pharmaceuticals, Aslan Pharmaceuticals, Bristol Meyers Squibb, Concert Pharmaceuticals Inc, Equillium, GSK, Horizon Therapeutics, Eli Lilly and Company, Incyte Corp, Janssen Pharmaceuticals, LEO Pharma, Merck, Otsuka/Visterra Inc, Pfizer Inc, Q32 Bio Inc, Regeneron, Sanofi Genzyme, Sun Pharmaceutical, Takeda, TWi Biotechnology Inc, and Ventyx Biosciences Inc. He has served on speakers bureaus for AbbVie, Incyte, Eli Lilly, Pfizer, Regeneron, and Sanofi Genzyme. Amy McMichael has served on advisory boards and/or is a consultant and/or is a clinical trial investigator for Arcutis, Almirall, AbbVie, Bristol Meyers Squibb, Concert, Eli Lilly, Galderma, Incyte, Janssen, Johnson & Johnson, Kenvue, L’Oreal, Leo, Pelage, Pfizer, Procter & Gamble, Revian, Sanofi Regeneron, Sun Pharma, and UCB. Rodney Sinclair has provided professional services to Aerotech, AbbVie, AstraZeneca, Akesobio, Amgen, Arcutis, Arena, Ascend, Bayer, BMS, Boehringer Ingelheim, Celgene, Coherus BioSciences, Connect, Cutanea, Demira, Eli Lilly, Galderma, GSK, Janssen, LEO Pharma, MedImmune, Merck, MSD, Novartis, Oncobiologics, Pfizer, Regeneron, Reistone, Roche, Samson Clinical, Sanofi, Sun Pharma, and UCB. Sergio Vañó-Galvan reports consulting fees and payment/honoraria from Pfizer and Eli Lilly. Robert Wolk, Deborah Woodworth, Koshika Soma, Feriel Robbana, Alexandre Lejeune, Lynne Napatalung, Ernest Law, Dalia Wajsbrot, Cunshan Wang, and Satrajit Roychoudhury are employees of and own stock in Pfizer Inc.
: This study will be conducted in accordance with the protocol and with the consensus ethical principles derived from international guidelines, including the Declaration of Helsinki and CIOMS International Ethical Guidelines; applicable International Council for Harmonisation Good Clinical Practice guidelines; and applicable regional laws and regulations, including privacy laws. The protocol, protocol amendments, and other relevant documents are reviewed and approved by the sponsor and submitted by the investigator for review and approval by the institutional review board/ethics committee before the study can be initiated. All participants or their legally authorized representative must provide written informed consent.