Abstract: Provided are specific immunotherapy methods for allergies in which one or more peptides specific for the allergy being treated is administered to the patient incorporated within a virosome and in the presence of a Toll-like receptor (TLR) agonist.

Abstract: The present disclosure is directed to oral vaccine dosage forms and processes for producing the oral vaccine dosage forms. The dosage forms include lipid-based vesicles (e.g., virosomes, liposomes) harboring an immunogenic amount of at least one vaccinal target molecule, with or without adjuvant. Specifically, Applicants discovered a combination of the composition of the liquid virosome concentrates, the composition of the base matrix for the solid dosage form formulation (excluding the virosome concentrate), and the manufacturing conditions for the dosage forms that can produce a freeze dried sublingual dosage form having physical robustness, particle and antigen integrity and stability.

Abstract: The invention relates to the fields of immunology and vaccinology. Provided is a method for preparing adjuvanted virosomes, comprising the steps of: (i) providing an aqueous composition of non-adjuvanted virosomes comprising a membrane fusion protein; (ii) dissolving an amphiphilic adjuvant in a pharmaceutically acceptable non-aqueous solvent which can form a homogeneous mixture with water; and (iii) diluting said adjuvant solution in said aqueous virosome composition to induce insertion of adjuvant in the outer leaflet of the virosomal membrane while preserving membrane fusion activity of the virosomes. Also provided are adjuvanted virosomes obtainable by said method, and vaccines comprising the virosomes.

Abstract: The invention relates to the fields of immunology and vaccinology. Provided is a method for preparing adjuvanted virosomes, comprising the steps of: (i) providing an aqueous composition of non-adjuvanted virosomes comprising a membrane fusion protein; (ii) dissolving an amphiphilic adjuvant in a pharmaceutically acceptable non-aqueous solvent which can form a homogeneous mixture with water; and (iii) diluting said adjuvant solution in said aqueous virosome composition to induce insertion of adjuvant in the outer leaflet of the virosomal membrane while preserving membrane fusion activity of the virosomes. Also provided are adjuvanted virosomes obtainable by said method, and vaccines comprising the virosomes.