Thermostabilization of a Model Viral-Vectored Oral Thin Film Vaccine using DoE Approach

Introduction: Vaccines rely on a global cold chain to maintain vaccine potency throughout the product life cycle. However, 50% of vaccines that are thrown out each year are due to cold chain breaks [1]. Existing vaccine thermostabilization methods like lyophilization and spray-drying impart significant stress on the vaccine, reducing its potency. Therefore, dissolvable oral thin films (OTFs) have emerged as an alternative thermostabilizing vaccine delivery platform wherein the vaccine is immobilized in a polymer-sugar matrix and administered to the oral mucosa.