Tapinarof cream is a topical therapeutic aryl hydrocarbon receptor modulating agent under investigation for treatment of psoriasis and atopic dermatitis.
In a phase 2b, double-blind, vehicle-controlled study, adults with plaque psoriasis were randomized to tapinarof cream 0.5% or 1% once or twice daily or vehicle once or twice daily for 12 weeks with 4-week follow-up. Efficacy outcomes included Physician Global Assessment (PGA) scores, change in PGA and total target lesion grading scores, and proportion of patients achieving ≥50%, ≥75%, and ≥90% reductions in the Psoriasis Area and Severity Index scores from baseline (PASI50, PASI75, and PASI90).
At week 12, improvements were observed in all tapinarof groups vs vehicle in PGA response, change in PGA and total target lesion grading scores, PASI50 (71%-92% vs 10%-32%), PASI75 (46%-65% vs 5%-16%), and PASI90 (18%-40% vs 0%); all differences were statistically significant with tapinarof 1% once daily. Tapinarof responses were apparent from week 2, with significant efficacy at week 8 maintained through week 16. Most adverse events were mild or moderate.
The analyses reported require confirmation in larger prospective studies.
Tapinarof may represent an important advance in the development of topical medicines for treatment of psoriasis.Le texte complet de cet article est disponible en PDF.
Key words : patient-reported outcomes, psoriasis, tapinarof, therapeutic aryl hydrocarbon receptor (AhR) modulating agent (TAMA), topical therapy
Abbreviations used : AE, BSA, PASI, PASI50, PASI75, PASI90, PGA, PSD
| Funding sources: Supported by Dermavant Sciences, Inc.
| Conflicts of interest: Dr Stein Gold is an investigator, consultant, and speaker with honorarium for LEO Pharma, an investigator with honorarium for Incyte, a consultant and speaker with honorarium for Mayne Pharma and Taro Pharmaceutical Industries, and a consultant with honorarium and an investigator for Dermavant Sciences, Inc. Dr Bhatia is a consultant with honorarium and investigator for Dermavant Sciences, Inc. Dr Tallman and Dr Rubenstein are employees of Dermavant Sciences, Inc. with stock options.
| IRB approval status: The study was conducted in compliance with the guidelines for Good Clinical Practice and the Declaration of Helsinki. Approval was obtained from the local ethics committee or institutional review board at each study center. All patients provided written informed consent.
| Reprints not available from the authors.