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US 12,667,735 B2Granted
Methods for reducing pain during photodynamic therapy of actinic keratosis
AssigneeSun Pharmaceutical Industries Limited
InventorEdward V. Maytin
Life of this patent
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Abstract
This present invention and its embodiments relates to methods for reducing pain during photodynamic therapy of actinic keratosis. The present invention also relates to methods of treating actinic keratosis with reduced pain during photodynamic therapy of actinic keratosis.
Claims15
A method of reducing pain during a photodynamic therapy of actinic keratoses comprising:
- (a) applying a pharmaceutical composition comprising 20% w/v solution of 5-aminolevulinic acid on an affected area of skin of a patient;
- (b) illuminating the affected area with a blue light source applied at an intensity of 10 mW/cm2 with a pre-illumination gap of no more than 10 minutes;
- and
- (c) maintaining the illumination for at least 45 minutes;
- wherein the method does not include a pre-treatment preparation.
2 more elements
A method of treating actinic keratoses comprising:
- (a) applying a pharmaceutical composition comprising 20% w/v solution of 5-aminolevulinic acid on an affected area of skin of a patient;
- (b) illuminating the affected area with a blue light source applied at an intensity of 10 mW/cm2 with a pre-illumination gap of no more than 10 minutes;
- and
- (c) maintaining the illumination for at least 45 minutes;
- wherein the method does not include a pre-treatment preparation.
2 more elements
Dependencies are inferred from the claim text.