RecruitingPhase 3Drug trialA Study Evaluating the Safety and Pharmacokinetics of QTORIN Rapamycin 3.9% Anhydrous Gel in the Treatment of Adults With Pachyonychia CongenitaPALV-08 is a multicenter, open-label treatment (OLT) study enrolling adults with Pachyonychia Congenita (PC) with genotyped keratin mutations KRT6A, KRT6B, KRT6C or KRT16 who were previously enrolled in the PALV-05 (VAPAUS) trial. The purpose of this OLT study is to investigate the safety of long term exposure and pharmacokinetics (PK) of QTORIN rapamycin 3.9% anhydrous gel or "PTX-022".