Mouse model of chronic contact dermatitis; in vitro PDE-4 inhibition and cytokine suppression in inflammatory cells
“Difamilast inhibits the activity of PDE-4 in in vitro studies, e.g., increasing intracellular cAMP levels in inflammatory cells and inhibiting/suppressing the productions of various cytokines and chemokines. Difamilast showed efficacy in a mouse model of chronic contact dermatitis.”
✓ VerifiedFDA multi-discipline review, p. 41Source ↗
Why that model
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Reviewer's view of the efficacy data
FDA: approvable from a pharmacology/toxicology perspective; no nonclinical PMC/PMR
“This NDA is approvable from a Pharmacology/Toxicology perspective. There is no recommended nonclinical postmarketing commitment (PMC)/postmarketing requirement (PMR) for this NDA.”
✓ VerifiedFDA multi-discipline review, p. 41Source ↗