1.	Phase III Randomized Study of Photodynamic Therapy With Methyl-5-aminolevulinate in Patients With Primary Nodular Basal Cell Carcinoma of the Skin Phase: Phase III Type: Treatment Status: Completed Age: Over 18 Sponsor: NCI, Pharmaceutical / Industry Protocol IDs: RPCI-DS-0025, PC-T307/00, NCI-G01-2003, NCT00472108
2.	Intra-individual Comparison of Efficacy and Safety of Metvix® Natural Daylight Photodynamic Therapy Versus Conventional Metvix® Photodynamic Therapy in Subject With Mild Actinic Keratoses Phase: Phase III Type: Treatment Status: Closed Age: 18 and over Sponsor: Pharmaceutical / Industry Protocol IDs: RD.03.SPR.29102, NCT01475071
3.	Photodynamic Therapy Using Methyl-5-Aminolevulinate Hydrochloride Cream in Determining Pain Threshold in Patients With Skin Cancer Phase: Phase I Type: Treatment Status: Closed Age: 18 and over Sponsor: NCI, Other Protocol IDs: I 175410, NCI-2010-02319, NCT01292668