EMERYVILLE, Calif. & BRISBANE, Australia--(BUSINESS WIRE)--Peplin, Inc. (ASX:PLI) today announced the completion of enrolment of its two Phase 3 clinical trials for the use of PEP005 (ingenol mebutate) Gel to treat actinic (solar) keratoses (AK), a common pre-cancerous skin lesion, on head treatment areas, which include the face and scalp.