Pharmaceutical composition

Patent metadata

Field	Value
Publication number	US-11260052-B2
Application number	US-201716334151-A
Country	US
Kind code	B2
Filing date	Sep 18, 2017
Priority date	Sep 19, 2016
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

A pharmaceutical composition is described. The composition comprises: (i) a drug component comprising at least one indacaterol compound selected from indacaterol and the pharmaceutically acceptable derivatives thereof; and (ii) a propellant component comprising 1,1-difluoroethane (HFA-152a).

First claim

The invention claimed is:

1. A pharmaceutical composition comprising:
(i) a drug component consisting of at least one indacaterol compound selected from indacaterol and indacaterol maleate; and
(ii) a propellant component at least 90 weight % of which is 1,1-difluoroethane (HFA-152a).

2. The pharmaceutical composition of claim 1 , wherein the composition contains less than 500 ppm of water based on the total weight of the pharmaceutical composition.

3. The pharmaceutical composition of claim 2 , wherein the composition contains greater than 0.5 ppm of water based on the total weight of the pharmaceutical composition.

4. The pharmaceutical composition of claim 1 , wherein the composition contains less than 1000 ppm of oxygen based on the total weight of the pharmaceutical composition.

5. The pharmaceutical composition of claim 4 , wherein the composition contains greater than 0.5 ppm of oxygen based on the total weight of the pharmaceutical composition.

6. The pharmaceutical composition of claim 1 , wherein at least 99 weight % of the propellant component is 1,1-difluoroethane (HFA-152a).

7. The pharmaceutical composition of claim 1 , wherein the propellant component is entirely 1,1-difluoroethane (HFA-152a).

8. The pharmaceutical composition of claim 6 , wherein the propellant component contains from 0.5 to 10 ppm of unsaturated impurities.

9. The pharmaceutical composition of claim 1 , further comprising a surfactant component comprising at least one surfactant compound selected from polyvinylpyrrolidone polyethylene glycol surfactants, oleic acid, and lecithin.

10. The pharmaceutical composition of claim 1 , further comprising a polar excipient which is ethanol.

11. The pharmaceutical composition of claim 1 , which wherein the pharmaceutical composition is free of one or more of the following: (i) perforated microstructures: (ii) acid stabilizers; (iii) polar excipients; and (iv) ethanol.

12. The pharmaceutical composition of claim 1 , wherein the composition after storage in uncoated aluminum containers at 40° C. and 75% relative humidity for 1 month will produce less than 0.15% by weight of impurities from the degradation of the at least one indacaterol compound based on the total weight of the at least one indacaterol compound and the impurities.

13. The pharmaceutical composition of claim 1 , wherein the composition after storage in uncoated aluminum containers at 40° C. and 75% relative humidity for 3 months will produce less than 0.3% by weight of impurities from the degradation of the at least one indacaterol compound based on the total weight of the at least one indacaterol compound and the impurities.

14. The pharmaceutical composition of claim 1 , wherein at least 98.0% by weight of the at least one indacaterol compound that is contained originally in the pharmaceutical composition immediately following preparation will be present in the composition after storage in uncoated aluminum containers at 40° C. and 75% relative humidity for 3 months.

15. The pharmaceutical composition of claim 1 , wherein the composition is in the form of a suspension.

16. The pharmaceutical composition of claim 15 , wherein the drug particles in the suspension take at least 1.5 minutes to settle following complete dispersion of the drug particles in the suspension.

17. The pharmaceutical composition of claim 1 , wherein the composition is in the form of a solution.

18. The pharmaceutical composition of claim 1 , wherein the composition when delivered from a metered dose inhaler yields a fine particle fraction of the at least one indacaterol compound which is at least 40 weight % of the emitted dose of the at least one indacaterol compound.

19. The pharmaceutical composition of claim 1 , wherein the composition when delivered from a metered dose inhaler yields a fine particle fraction of the at least one indacaterol compound which is at least 30 weight % of the emitted dose of the at least one indacaterol compound even after storage of the pharmaceutical composition at 40° C. and 75% relative humidity for 3 months.

20. A metered dose inhaler (MDI) fitted with a sealed and pressurized aerosol container containing a pharmaceutical composition as claimed in claim 1 .

Assignees

• Mexichem Fluor Sa De Cv

Inventors

• Corr Stuart
• Noakes Timothy James

Classifications

• A61K31/58

  containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin (digitoxin {A61K31/7048}) · CPC title

• A61M15/0065

  Inhalators with dosage or measuring devices (A61M15/0028 takes precedence; dosage devices incorporated in aerosol cans B65D83/52) · CPC title

• A61P11/00

  Drugs for disorders of the respiratory system · CPC title

• A61K9/008 Primary

  comprising drug dissolved or suspended in liquid propellant for inhalation via a pressurized metered dose inhaler [MDI] · CPC title

• A61K9/124

  characterised by the propellant · CPC title