Dermavant to Showcase PASI90, Itch and Quality of Life Data from Phase 3 Pivotal Trials for Tapinarof at AAD VMX 2021

The posters feature important secondary efficacy endpoints and patient-reported outcomes data from patients with mild, moderate, or severe chronic plaque psoriasis after 12 weeks of treatment with tapinarof cream 1% dosed once daily (QD) compared to vehicle QD.
Endpoints reported include =90% reduction in Psoriasis Area and Severity Index (PASI90) (an endpoint more commonly used in assessing systemic agents), itch reduction measured with the Peak Pruritis Numerical Rating Scale (PP-NRS), and improvement in quality of life as measured by the Dermatology Life Quality Index (DLQI). All secondary endpoints were met with highly statistically significant results, and patients treated with tapinarof showed significant improvement in all measures of disease activity included in the studies.
Highlights from Secondary Efficacy Endpoints and Patient-Reported Outcomes:
- PASI90?? At Week 12, a significantly higher proportion of patients treated with tapinarof cream 1%, QD achieved PASI90 in PSOARING 1 (18.8%) and PSOARING 2 (20.9%) compared to patients treated with vehicle in PSOARING 1 (1.6%; P=0.0005) and PSOARING 2 (2.5%; P<0.0001).
- =4-point Improvement in PP-NRS?? Peak Pruritis-NRS - A statistically significant higher proportion of patients treated with tapinarof cream 1%, QD achieved at least a 4-point NRS improvement - a change that is considered clinically meaningful - at each time point from Week 2 through Week 12. At Week 12 in PSOARING 1 and PSOARING 2 that proportion was 67.5% and 59.7% respectively, compared to patients treated with vehicle (46.1% in PSOARING 1; P=0.0004, and 31.3% in PSOARING 2; P<0.0001).
- DLQI?? At Week 4, patients treated with tapinarof cream, 1% QD reported significant improvements in quality of life as measured by the DLQI. A minimal clinically important difference of ?4.0 in DLQI was exceeded at Week 12 for patients treated with tapinarof (?5.0 in PSOARING 1; ?4.7 in PSOARING 2). These reductions were significant (both P<0.0001) compared to vehicle (?3.0 in PSOARING 1; ?1.6 in PSOARING 2).