Method of administration and treatment
Provided herein are formulations for topical and/or transdermal administration, and methods of using these formulations for the treatment of proliferative diseases related to cancer such as cancers and related conditions, and solid tumors. Also provided are formulations for topical and/or transdermal administration, and methods of using these formulations for melasma, gout, skin disorders, and other diseases and disorders described herein as well as methods for modulating the pH (e.g. raising) of a tissue or microenvironment proximal to a tumor, modulating pH, or improving the effectiveness of know chemotherapeutic agents, immunotherapy and the like for the prevention, treatment of cancers and related conditions described herein.
1. A method for treating melasma or reducing a sign or a symptom of melasma, the method comprising topically administering to a subject in need thereof a transdermal formulation having two active agents, wherein the two active agents consist of a buffering agent and tranexamic acid; wherein the buffering agent is selected from the group consisting of sodium carbonate, sodium bicarbonate, and triethanolamine;
wherein the melasma is caused by or exacerbated by one or more of birth control pills, pregnancy, hormone therapy, stress, thyroid disease, and sun exposure.
2. The method of claim 1 , wherein the sign or the symptom of melasma is abnormal skin pigmentation.
3. The method of claim 2 , wherein the abnormal skin pigmentation is a discoloration comprising a brown patch or a grey-brown patch.
4. The method of claim 2 , wherein treating melasma or reducing the sign or the symptom of melasma reduces the size of the abnormal skin pigmentation, reduces the intensity of the abnormal skin pigmentation, and/or eliminates the abnormal skin pigmentation.
5. The method of claim 2 , wherein the transdermal formulation reduces the abnormal skin pigmentation by at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, at least 45%, at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, or at least 95% relative the abnormal skin pigmentation before administering the transdermal formulation.
6. The method of claim 1 , wherein the buffering agent is at a concentration from about 1.0% to 3.0% w/w of the transdermal formulation.
7. The method of claim 1 , wherein the transdermal formulation comprises about 1% w/w sodium carbonate, about 1% w/w sodium bicarbonate, and/or about 1% triethanolamine.
8. The method of claim 1 , wherein the tranexamic acid is at a concentration from about 6.0% to 8.0% w/w of the transdermal formulation.
9. The method of claim 1 , wherein the transdermal formulation comprises about 6% tranexamic acid.
10. The method of claim 1 , wherein the transdermal formulation is formulated as a cream, lotion or ointment.
11. The method of claim 1 , wherein the method further comprises administering another therapeutic for melasma.
12. The method of claim 11 , wherein the other therapeutic is sun protection or a sunscreen and the other therapeutic is administered before, contemporaneously with, and/or after administering the transdermal formulation.
13. The method of claim 1 , wherein the transdermal formulation further comprises a penetrant or penetration enhancer comprising one or more of benzyl alcohol, cetyl alcohol, isododecane, isopropyl palmitate (IPP), isopropyl stearate, menthol, phosphatidyl choline, undecane, and/or a lecithin, wherein the lecithin is selected from an egg lecithin, a soy lecithin, and a synthetic lecithin.
14. The method of claim 1 , wherein the transdermal formulation further comprises a source of fatty acids comprising one or more of an alkanoic acid, caprid acid, diacid, ethyloctadecanoic acid, hexanoic acid, lactic acid, lauric acid, a lecithin, linoelaidic acid, linoleic acid, linolenic acid, neodecanoic acid, oleic acid, palmitic acid, pelargonic acid, propionic acid, stearic acid, and vaccenic acid, wherein the lecithin is selected from an egg lecithin, a soy lecithin, and a synthetic lecithin.
15. The method of claim 1 , wherein the transdermal formulation further comprises a polar solvent comprising one or more of ethanol, isopropyl palmitate (IPP), and water.
16. The method of claim 1 , wherein the transdermal formulation further comprises benzyl alcohol, isopropyl palmitate (IPP), and a lecithin, wherein the lecithin is selected from an egg lecithin, a soy lecithin, and a synthetic lecithin; and the transdermal formulation further comprises one or more of water, a poloxamer, and a polyglyceryl-4 Laurate.
17. The method of claim 16 , wherein the transdermal formulation comprises about 5% glycolic acid and about 1% triethanolamine.
18. A method for treating melasma or reducing a sign or a symptom of melasma, the method comprising topically administering to a subject in need thereof a transdermal formulation formulated as a cream, lotion, or ointment and having two active agents, wherein the two active agents consist of a buffering agent and tranexamic acid; wherein the buffering agent is selected from the group consisting of sodium carbonate, sodium bicarbonate, and triethanolamine, and wherein the transdermal formulation comprises about 1% w/w sodium carbonate and/or about 1% w/w sodium bicarbonate and comprises about 6% tranexamic acid;
wherein the melasma is caused by or exacerbated by one or more of birth control pills, pregnancy, hormone therapy, stress, thyroid disease, and sun exposure.
19. The method of claim 18 , wherein the transdermal formulation is effective in reducing the level of brown to gray-brown at a site of melasma by at least 50%.