Adquey
difamilast · PDE4 (topical)First-in-human: where
US: single and multiple ascending dose study in healthy adults
“271-11-202 Phase 1, FIH, DB, PC, SAD/MAD study Healthy U.S. adults (48)”
Longest repeat-dose study and recovery
39-week subcutaneous dog and 39-week dermal minipig studies; recovery phase not stated
“repeat-dose subcutaneous (SC) toxicity studies with treatment durations up to 39 weeks in dogs, dermal toxicity studies with treatment durations up to 26 weeks in rats and 39 weeks in minipigs”
PPND / ePPND: when
PPND in rat completed and reviewed in the NDA
“two embryofetal development studies in rats and rabbits, a prenatal and postnatal development study in rats, and two juvenile animal toxicity studies in rats.”
Carcinogenicity timing
2-year dermal rat and 2-year dermal mouse completed; reviewed by ECAC before approval
“These two 2-year dermal carcinogenicity studies have been reviewed by the ECAC. The Committee concluded that the studies were adequate and there was no evidence of drug-related neoplasms in either study.”