Intra-individual Comparison of Efficacy and Safety of Metvix® Natural Daylight Photodynamic Therapy Versus Conventional Metvix® Photodynamic Therapy in Subject With Mild Actinic Keratoses

Intra-individual Comparison of Efficacy and Safety of Metvix® Natural Daylight Photodynamic Therapy Versus Conventional Metvix® Photodynamic Therapy in Subject With Mild Actinic Keratoses.

The main objective of this study is to compare efficacy and safety of Metvix® natural daylight photodynamic therapy with those of Metvix® conventional photodynamic therapy with Aktilite™ lamp in subjects with mild actinic keratoses (intra-individual comparison).

Inclusion Criteria:

1. Male or female above 18 years;
2. Subject with clinical diagnosis of mild AK on the face or the scalp with or without clinical diagnosis of moderate AK on the target areas (TAs);

Exclusion Criteria:

1. Subject with clinical diagnosis of at least one severe AK on TAs
2. Subject with clinical diagnosis of other skin disease (including non-melanoma skin cancer) on the TAs;
3. Subject with pigmented AK on the TAs