Patent ID: 8637688

Claim:
A method for treating skin cancer or breast cancer, the method comprising administering to a subject in need thereof a topical pharmaceutical dosage form comprising a tri-substituted glycerol compound according to formula (I) or an enantiomer or diastereomer or a pharmaceutically acceptable salt thereof and at least one pharmaceutically acceptable excipient, wherein X is selected from the group consisting of phosphate and sulfate; R 1 is selected from the group consisting of C 16 -C 20 alkyl; R 2 is selected from the group consisting of C 1 -C 3 alkyl and C 1 -C 3 hydroxyalkyl; R 3 is selected from the group consisting of hydrogen and C 1 -C 3 alkyl; R 4 is selected from the group consisting of C 1 -C 3 alkyl and C 3 -C 6 cycloalkyl; and R 5 is selected from the group consisting of hydrogen and methyl, and wherein the dosage form does not comprise liposomes.