This study is being done to compare a new, continuous illumination regimen of ALA-PDT (Aminolevulinate-Photodynamic Therapy) to a conventional regimen for treatment of actinic keratoses. The hypothesis is that the continuous illumination approach will be less painful, but equally efficacious, as the old regimen.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
AK clearance
Timeframe: at 3 months post-treatment