Claims for Patent: 12,594,273

Summary for Patent: 12,594,273

Title:	Intranasal DHE for the treatment of headache
Abstract:	Presented herein are powder formulations comprising dihydroergotamine (DHE), or a pharmaceutically acceptable salt thereof. In addition to such formulations, also presented herein are methods comprising intranasally administering powder formulations comprising dihydroergotamine, or a pharmaceutically acceptable salt thereof. The presented methods can be used for treating headache, for example, for rapid onset treatment of headache, including migraine, e.g. acute treatment of migraine with or without aura.
Inventor(s):	Shunji Haruta, Nikhilesh N. Singh, John KOLLINS, Salvador RICO
Assignee:	Satsuma Pharmaceuticals Inc
Application Number:	US17/834,583
Patent Claims:	1. A nasal delivery device, comprising a pharmaceutical nasal dosage form comprising dihydroergotamine mesylate and microcrystalline cellulose; wherein dihydroergotamine mesylate is present in the pharmaceutical nasal dosage form in an amount of 6 mg to about 8 mg, wherein said microcrystalline cellulose is present in the pharmaceutical nasal dosage form in an amount from about 40% to about 60% w/w; and wherein said pharmaceutical nasal delivery device provides a Tmax of dihydroergotamine mesylate of less than or equal to about 30 minutes; and the nasal delivery device requires no priming. 2. The nasal delivery device of claim 1, wherein said dihydroergotamine mesylate is present in about 18% w/w of said pharmaceutical nasal dosage form. 3. The nasal delivery device of claim 1, wherein said dihydroergotamine mesylate is present in about 23% w/w of said pharmaceutical nasal dosage form. 4. The nasal delivery device of claim 1, wherein said dihydroergotamine mesylate is present in an amount of 6 mg. 5. The nasal delivery device of claim 1, wherein the pharmaceutical nasal dosage form is a powder pharmaceutical nasal dosage form. 6. The nasal delivery device of claim 1, wherein the pharmaceutical nasal dosage form is in a unit dose form. 7. The nasal delivery device of claim 1, wherein the microcrystalline cellulose is present in an amount of about 50% to about 60% of the total weight of said pharmaceutical nasal dosage form. 8. The nasal delivery device of claim 7, wherein the microcrystalline cellulose is present in an amount of about 60% of a total weight of said pharmaceutical nasal dosage form. 9. The nasal delivery device of claim 1, wherein said microcrystalline cellulose has a mean particle size diameter of about 100 μm or less. 10. The nasal delivery device of claim 9, wherein said microcrystalline cellulose has a mean particle size diameter of about 50 μm or less. 11. The nasal delivery device of claim 10, wherein said microcrystalline cellulose has a mean particle size diameter of about 30 μm or less. 12. The nasal delivery device of claim 5, wherein the total weight of the powder pharmaceutical nasal dosage form is about 35 mg. 13. The nasal delivery device of claim 12 wherein the total weight of the powder pharmaceutical nasal dosage form is about 30 mg. 14. A method of delivering the nasal pharmaceutical dosage form, comprising: administering to a nostril of a subject the pharmaceutical nasal dosage form by the nasal delivery device of claim 1. 15. A method of treating a headache, comprising: administering to a nostril of a subject the pharmaceutical nasal dosage form by the nasal delivery device of claim 1. 16. The method of claim 14, wherein the pharmaceutical nasal dosage form is administered at a first time and a second time.