METHODS AND COMPOSITIONS FOR TREATING RESPIRATORY DISEASE
Disclosed herein are methods and nanoparticles suitable for use in reducing exacerbations in COPD patients. The methods and compositions advantageously reduce the incidence of hospitalization in COPD patients that occurs in response to environmental insults such as exposure to or infection by RSV. Dosages, formulations, and methods for preparing the vaccines and nanoparticles are also disclosed.
1 - 20 . (canceled)
21 . A method of reducing exacerbations of chronic obstructive pulmonary disease (COPD) in a human subject comprising administering a vaccine to the subject, wherein the vaccine comprises a Respiratory Syncytial Virus Fusion (RSV F) protein.
22 . The method of claim 21 , wherein the vaccine is a nanoparticle vaccine, the nanoparticle comprising a non-ionic detergent core and an RSV F glycoprotein.
23 . The method of claim 22 , wherein the RSV F glycoprotein is associated with the core and the detergent is present at about 0.03% to about 0.1% w/v.
24 . The method of claim 23 , wherein the detergent is present at about 0.03% to about 0.05% w/v.
25 . The method of claim 22 , wherein the molar ratio of non-ionic detergent to RSV F glycoprotein is about 30:1 to about 60:1.
26 . The method of claim 23 , wherein the nonionic detergent is selected from the group consisting of PS20, PS40, PS60, PS65, and PS80.
27 . The method of claim 25 , wherein the non-ionic detergent is PS80.
28 . The method of claim 25 , wherein the vaccine is substantially free of any other detergent.
29 . The method of claim 21 , wherein the exacerbation is caused by an environmental insult.
30 . The method of claim 29 , wherein the environmental insult is selected from the group consisting of an RSV virus and an influenza virus.
31 . The method of claim 21 , wherein the incidence of exacerbations is reduced by about 50% as determined by hospitalization rate.
32 . The method of claim 21 , wherein the human subject is at least 60 years old.
33 . The method of claim 21 , wherein the vaccine further comprises at least one of an influenza HA protein and an influenza NA protein.
34 . The method of claim 21 , wherein the RSV F protein comprises a deletion of 1 to 10 amino acids corresponding to amino acids 137-146 of SEQ ID NO:2 and an inactivated primary furin cleavage site corresponding to amino acids 131 to 136 of SEQ ID NO:2, wherein the primary furin cleavage site is inactivated by mutation.
35 . The method of claim 21 , wherein the RSV F protein is selected from the group consisting of SEQ ID NOS:2-13 and variants of SEQ ID NOS:2-13 lacking part or all of the N-terminal signal peptide.
36 . The method of claim 21 , wherein the RSV F protein consists of SEQ ID NO:19.