Overview Cryotherapy in Combination with Red Light PDT for Actinic Keratosis of Full Face Status: RECRUITING Trial end date: 2025-06-01 Target enrollment: Participant gender: Summary 40 patients randomized 1:1 to receive cryotherapy followed by 10% ALA gel Red light PDT vs. to 10% ALA gel Red Light PDT followed by cryotherapy.Phase: PHASE4 Details Lead Sponsor: Psoriasis Treatment Center of Central New JerseyCollaborator: Biofrontera Bioscience GmbHTreatments: Aminolevulinic AcidCryotherapyGelsPhotochemotherapy