Consecutive Spray Drying to Produce Coated Dry Powder Vaccines Suitable for Oral Administration

Current global vaccination programs are challenged by costs associated with vaccine cold chain storage and administration. A solid, thermally stable oral dosage form for vaccines would alleviate these costs but is difficult to produce due to general vaccine instability and the complication of bypassing the gastric barrier. We developed a novel consecutive spray drying method that is suitable for use with biologics and employs Eudragit L100 …