Claims for Patent: 9,919,050

Summary for Patent: 9,919,050

Title:	Compositions comprising azelastine
Abstract:	The present invention provides pharmaceutical compositions comprising azelastine, or a pharmaceutically acceptable salt or ester thereof including azelastine hydrochloride, and optionally one or more additional active agents. Preferred such compositions further comprise one or more pharmaceutically acceptable carriers or excipients that reduce the amount of post-nasal drip, and/or that minimize or mask the unpleasant bitter taste associated with post-nasal drip, of the compositions, into the oral cavity, upon intranasal or ocular administration of the compositions. Especially effective excipients used in the compositions of the present invention are hypromellose as a viscosity modifier and sucralose as a taste-masking agent. The invention also provides methods of treating or preventing certain disorders, or symptomatic relief therefrom, by administering the compositions of the invention to a patient, e.g., for the symptomatic relief of allergic rhinitis, non-allergic vasomotor rhinitis, allergic conjunctivitis, as well as other disorders.
Inventor(s):	Dang; Phuong Grace (Corona, CA), Lawrence; Brian D. (Somerset, NJ), Balwani; Gul (West Windsor, NJ), D'Addio; Alexander D. (Piscataway, NJ)
Assignee:	Meda Pharmaceuticals Inc. (Somerset, NJ)
Application Number:	13/974,881
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 9,919,050
Patent Claims:	1. A liquid intranasal composition, comprising: about 0.01% 0.05% to about 0.5% (w/v) azelastine hydrochloride; about 0.01% 0.1% to about 0.5% (w/v) sucralose; and about 0.1% to about 10% (w/v) sorbitol. 2. The composition of claim 1, comprising: about 0.05% to about 0.15% (w/v) azelastine hydrochloride. 3. The composition of claim 1, formulated in the form of a nasal spray or nasal drops. 4. The composition of claim 1, formulated in the form of a nasal spray. 5. The composition of claim 1, formulated in the form of nasal drops. 6. The composition of claim 1, wherein the composition is contained within an intranasal delivery system. 7. The composition of claim 6, wherein the intranasal delivery system comprises a bottle and a pump. 8. The composition of claim 7, wherein the pump is a metered multi-dose pump. 9. The composition of claim 6, wherein the intranasal delivery system delivers a volume of the composition of about 0.07 ml to about 0.15 ml per spray. 10. The composition of claim 9, wherein the intranasal delivery system delivers a volume of the composition of about 0.14 ml per spray. 11. The composition of claim 1, further comprising: hypromellose; disodium edetate; benzalkonium chloride 50% solution, NF; sodium citrate dihydrate; and QS water. 12. The composition of claim 1, wherein the concentration of sorbitol is sufficient for the osmolality of the composition to be from about 220 mOsmol/kg to about 350 mOsmol/kg. 13. The composition of claim 1, wherein the concentration of sorbitol is sufficient for the osmolality of the composition to be from about 250 mOsmol/kg to about 320 mOsmol/kg.