Patent 8481043 was granted and assigned to CPEX Pharmaceuticals, Inc. on July, 2013 by the United States Patent and Trademark Office.
Compositions and methods for intranasal delivery of antigens for immunization of a mammal are disclosed. Antigens include peptides, proteins, peptidomimetics, DNA, RNA, carbohydrates and phospholipids. The compositions contain at least one antigen and a permeation enhancer. The permeation enhancer can be a macrocyclic permeation enhancer, such as a Hsieh enhancer.