Oxygen delivery agents and uses for the same

• US 7,105,151 B2
• Filed: 01/06/2003
• Issued: 09/12/2006
• Est. Priority Date: 06/18/1997
• Status: Expired due to Fees

• Current Assignee: Cerevast Therapeutics, Inc.
• Original Assignee: Imarx Therapeutics, Inc. (Sycamore Entertainment Group, Inc.)
• Inventors: Unger, Evan C., Wu, Yunqiu, McCreery, Thomas
• Primary Examiner(s): JONES, DAMERON LEVEST
• Application Number:
  US10/336,906
• Publication Number:
  US 20030120204A1
• Time in Patent Office: 1,345 Days
• Field of Search: 424/9.52, 424/9.51, 424/450, 424/489
• US Class Current: 424/9.52
• CPC Class Codes: A61K 41/0028 Disruption, e.g. by heat or ultrasounds, sonophysical or sonochemical activation, e.g. thermosensitive or heat-sensitive liposomes, disruption of calculi with a medicinal preparation and ultrasounds
• CPC Class Codes: A61K 47/544 Phospholipids
• CPC Class Codes: A61K 49/223 Microbubbles, hollow microspheres, free gas bubbles, gas microspheres
• CPC Class Codes: A61K 9/1271 Non-conventional liposomes, e.g. PEGylated liposomes, liposomes coated with polymers liposome as conjugate A61K47/6911

Abstract

The present invention describes, inter alia, oxygen delivery agents or blood substitutes comprising a fluorinated gas and a stabilizing material, uses for the oxygen delivery agents or blood substitutes, and apparatus for making and delivering the oxygen delivery agents or blood substitutes.

Claims

1. A method of delivering oxygen to a patient comprising administering to the patient a composition which comprises a fluorinated gas, oxygen, and a stabilizing material, wherein:

(a) the fluorinated gas is selected from the group consisting of bromotrifluoroethane, chlorotrifluoromethane, dichlorodifluoromethane, dibromofluoromethane, chloropentafluoroethane, bromochlorodifluoromethane, dichloro-1,1,2,2-tetrafluoroethane, hexafluoroethane, perfluoromethane, perfluoroethane, perfluoropropylene, perfluoro-2-butyne, perfluoro-2-butene, perfluorobuta-1,3-diene, perfluoro n-propyl ethyl ether, perflouro diethyl ether, perfluoro methyl ethyl ether, perfluoro dimethyl ether, sulfur hexafluoride, selenium hexafluoride and perfluoropropionyl chloride; and

(b) the fluorinated gas in the composition is present in an amount of about 15% to about 85% of the total amount of gas in the composition and the oxygen is present in an amount of about 85% to about 15% of the total amount of gas in the composition.

2. The method of claim 1, further comprising imaging the patient with diagnostic ultrasound to monitor the location of the composition.

3. The method of claim 2, further comprising applying therapeutic ultrasound to the patient to facilitate delivery of oxygen in a desired region of the patient.

4. The method of claim 1, wherein the composition further comprises an aqueous carrier.

5. The method of claim 1, wherein the oxygen is O₂.

6. The method of claim 1, wherein the fluorinated gas in the composition is present in an amount of about 20% to about 80% of the total amount of gas in the composition and the oxygen is present in an amount of about 80% to about 20% of the total amount of gas in the composition.

7. The method of claim 1, wherein the fluorinated gas is selected from the group consisting of perfluoromethane, perfluoroethane, perfluoro n-propyl ethyl ether, perflouro diethyl ether, perfluoro methyl ethyl ether, perfluoro dimethyl ether and sulfur hexafluoride.

8. The method of claim 7, wherein the fluorinated gas is selected from the group consisting of perfluoromethane, and perfluoroethane.

9. The method of claim 1, wherein the fluorinated gas has been converted to a gas from a gaseous precursor.

10. The method of claim 9, wherein the fluorinated gas that has been converted to a gas from a gaseous precursor is selected from the group consisting of 1-bromo-1,1,2,3,3,3-hexafluoropropane, bromoperfluoropropane, 2-chloro-1,1,1,4,4,4-hexafluoro-2-butene, 2-chloropentafluoro-1,3-butadiene, iodotrifluoroethylene, 1,1,2-trifluoro-2-chloroethane, 1,2-difluorochloroethane, 1,1-difluoro-2-chloroethane, 1,1-dichlorofluoroethane, 1-bromoethane, 1-fluorobutane, perfluorotetrahydropyran, perfluoromethyltetrahydrofuran, perfluoro t-butyl methyl ether, perfluoro n-butyl methyl ether, perfluoro isopropyl methyl ether, 1-bromo-nonafluorobutane, 1-chloro-1-fluoro-1-bromomethane, 1,1,1-trichloro-2,2,2-trifluoroethane, 1,2-dichloro-2,2-difluoroethane, 1,1-dichloro-1,2-difluoroethane, 1,2-dichloro-1,1,3-trifluoropropane, 1-bromoperfluorobutane, 1-bromo-2,4-difluorobenzene, 2-iodo-1,1,1-trifluoroethane, 5-bromovaleryl chloride, 1,3-dichlorotetrafluoroacetone, bromine pentafluoride, heptafluoro-2-iodopropane, 6-bromo-1-hexene, 2-bromo-2-nitropropane, 2-bromo-5-nitrothiophene, 2-bromopropene, 3-chloro-5,5-dimethyl-2-cyclohe-xane, 2-chloro-2-methylpropane, perfluoro-2-methyl-2-pentene, 1,1,1,3,3-pentafluoropentane, 3-fluorobenzaldehyde, 2-fluoro-5-nitrotoluene, 3-fluorostyrene, 3,5-difluoroaniline, 2,2,2-trifluoroethylacrylate, 3-(trifluoromethoxy)-acetophenone, 1,1,2,2,3,3,4,4-octafluorobutane, 1,1,1,3,3-pentafluorobutane, perfluoro-2-methyl-2-pentene, perfluorobutylethyl ether, bis(perfluoroisopropyl) ether and bis(perfluoropropyl) ether.

11. The method of claim 10, wherein the fluorinated gas that has been converted to a gas from a gaseous precursor is selected from the group consisting of bromoperfluoropropane, perfluorobutyl methyl ether, perfluoromethyl n-butyl ether, perfluoromethyl isopropyl ether, perfluoromethyl t-butyl ether, perfluorotetrahydropyran, and perfluoromethyltetrahydrofuran.

12. The method of claim 1, wherein the stabilizing material is in a vesicular form.

13. The method of claim 1, wherein the stabilizing material is non-vesicular.

14. The method of claim 1, wherein the stabilizing material comprises a lipid, a protein or a polymer.

15. The method of claim 14, wherein the stabilizing material comprises a lipid.

16. The method of claim 15, wherein the lipid is a phospholipid or a fluorinated lipid.

17. The method of claim 1, wherein the stabilizing material comprises a surfactant.

18. The method of claim 17, wherein the surfactant is a fluorinated surfactant.

19. The method of claim 1, wherein the composition further comprises a fluorinated liquid compound.

20. The method of claim 19, wherein the fluorinated liquid compound is selected from the group consisting of perfluorohexane, perfluoroheptane, perfluorooctane, perfluorononane, perfluorodecane, perfluorododecane, perfluorodecalin, perfluorooctyliodide, perfluorooctylbromide, perfluorotributylamine, perfluorotripropylamine, perfluorobutyl ethyl ether, bis(perfluoroisopropyl) ether and bis(perfluoropropyl) ether.

21. An oxygen delivery agent comprising a composition which comprises a fluorinated gas, oxygen, and a stabilizing material, wherein:

(a) the fluorinated gas is selected from the group consisting of bromotrifluoroethane, chlorotrifluoromethane, dichlorodifluoromethane, dibromofluoromethane, chloropentafluoroethane, bromochlorodifluoromethane, dichloro-1,1,2,2-tetrafluoroethane, hexafluoroethane, perfluoromethane, perfluoroethane, perfluoropropylene, perfluoro-2-butyne, perfluoro-2-butene, perfluorobuta-1,3-diene, perfluoro n-propyl ethyl ether, perflouro diethyl ether, perfluoro methyl ethyl ether, perfluoro dimethyl ether, sulfur hexafluoride, selenium hexafluoride and perfluoropropionyl chloride; and

(b) the fluorinated gas in the composition is present in an amount of about 15% to about 85% of the total amount of gas in the composition and the oxygen is present in an amount of about 85% to about 15% of the total amount of gas in the composition.

22. The oxygen delivery agent of claim 21, further comprising an aqueous carrier.

23. The oxygen delivery agent of claim 21, wherein the oxygen is O₂.

24. The oxygen delivery agent of claim 21, wherein the fluorinated gas is present in an amount of about 20% to about 80% of the total amount of gas in the composition and the oxygen is present in an amount of about 80% to about 20% of the total amount of gas in the composition.

25. The oxygen delivery agent of claim 21, wherein the fluorinated gas is selected from the group consisting of perfluoromethane, perfluoroethane, perfluoro n-propyl ethyl ether, perflouro diethyl ether, perfluoro methyl ethyl ether, perfluoro dimethyl ether and sulfur hexafluoride.

26. The oxygen delivery agent of claim 25, wherein the fluorinated gas is selected from the group consisting of perfluoromethane, and perfluoroethane.

27. The oxygen delivery agent of claim 21, wherein the fluorinated gas has been converted to a gas from a gaseous precursor.

28. The oxygen delivery agent of claim 27, wherein the fluorinated gas that has been converted to a gas from a gaseous precursor is selected from the group consisting of 1-bromo-1,1,2,3,3,3-hexafluoropropane, bromoperfluoropropane, 2-chloro-1,1,1,4,4,4-hexafluoro-2-butene, 2-chloropentafluoro-1,3-butadiene, iodotrifluoroethylene, 1,1,2-trifluoro-2-chloroethane, 1,2-difluorochloroethane, 1,1-difluoro-2-chloroethane, 1,1-dichlorofluoroethane, 1-bromoethane, 1-fluorobutane, perfluorotetrahydropyran, perfluoromethyltetrahydrofuran, perfluoro t-butyl methyl ether, perfluoro n-butyl methyl ether, perfluoro isopropyl methyl ether, 1-bromo-nonafluorobutane, 1-chloro-1-fluoro-1-bromomethane, 1,1,1-trichloro-2,2,2-trifluoroethane, 1,2-dichloro-2,2-difluoroethane, 1,1-dichloro-1,2-difluoroethane, 1,2-dichloro-1,1,3-trifluoropropane, 1-bromoperfluorobutane, 1-bromo-2,4-difluorobenzene, 2-iodo-1,1,1-trifluoroethane, 5-bromovaleryl chloride, 1,3-dichlorotetrafluoroacetone, bromine pentafluoride, heptafluoro-2-iodopropane, 6-bromo-1-hexene, 2-bromo-2-nitropropane, 2-bromo-5-nitrothiophene, 2-bromopropene, 3-chloro-5,5-dimethyl-2-cyclohe-xane, 2-chloro-2-methylpropane, perfluoro-2-methyl-2-pentene, 1,1,1,3,3-pentafluoropentane, 3-fluorobenzaldehyde, 2-fluoro-5-nitrotoluene, 3-fluorostyrene, 3,5-difluoroaniline, 2,2,2-trifluoroethylacrylate, 3-(trifluoromethoxy)-acetophenone, 1,1,2,2,3,3,4,4-octafluorobutane, 1,1,1,3,3-pentafluorobutane, perfluoro-2-methyl-2-pentene, perfluorobutylethyl ether, bis(perfluoroisopropyl) ether and bis(perfluoropropyl) ether.

29. The oxygen delivery agent of claim 28 wherein the fluorinated gas that has been converted to a gas from a gaseous precursor is selected from the group consisting of bromoperfluoropropane, perfluorobutyl methyl ether, perfluoromethyl n-butyl ether, perfluoromethyl isopropyl ether, perfluoromethyl t-butyl ether, perfluorotetrahydropyran, and perfluoromethyltetrahydrofuran.

30. The oxygen delivery agent of claim 21, wherein the stabilizing material is in a vesicular form.

31. The oxygen delivery agent of claim 21, wherein the stabilizing material is non-vesicular.

32. The oxygen delivery agent of claim 21, wherein the stabilizing material comprises a lipid, a protein or a polymer.

33. The oxygen delivery agent of claim 32, wherein the stabilizing material comprises a lipid.

34. The oxygen delivery agent of claim 33, wherein the lipid is a phospholipid or a fluorinated lipid.

35. The oxygen delivery agent of claim 21, wherein the stabilizing material comprises a surfactant.

36. The oxygen delivery agent of claim 35, wherein the surfactant is a fluorinated surfactant.

37. The oxygen delivery agent of claim 21, wherein the composition further comprises a fluorinated liquid compound.

38. The oxygen delivery agent of claim 37, wherein the fluorinated liquid compound is selected from the group consisting of perfluorohexane, perfluoroheptane, perfluorooctane, perfluorononane, perfluorodecane, perfluorododecane, perfluorodecalin, perfluorooctyliodide, perfluorooctylbromide, perfluorotributylamine, perfluorotripropylamine, perfluorobutyl ethyl ether, bis(perfluoroisopropyl) ether and bis(perfluoropropyl) ether.