FIGURE 1.

Change in cleared AK lesions—A) Among lesions treated with SOL, 57.7% were cleared at Day 28; by Day 84, cleared areas had increased to 94.9% (p<0.001 from baseline). Among lesions treated with GEL, 52.3% of AK lesions were cleared at Day 28; by Day 84, these had increased to 97.1% (p<0.001 from baseline). B) At the Day 84 follow-up visit, 78.9% of areas treated with SOL and 86.8% of areas treated with GEL showed 100% clearance (for both groups, p<0.001 from baseline).

ALA: 5-aminolevulinic acid; AK: actinic keratosis; SOL: 20% ALA solution; GEL: 10% ALA gel