Buccal mucosa has a large surface area and immunological competence, making it an ideal site for the administration of vaccines. The oral thin film can deliver vaccines either in pure or particulate form to these cells for buccal delivery. Unlike traditional vaccination approaches, oral thin film vaccine delivery technology is an emerging, exciting concept that can be used in the field of pharmaceuticals for vaccine design and formulation development. CD Formulation has established an oral thin film vaccine technology platform to facilitate the development and investigation of vaccines utilizing oral thin film delivery systems, assisting researchers in leveraging this technology for vaccine drug delivery applications.
Fig.1 Design buccal film with different functions for unidirectional release of antigen. (Shery Jacob, et al., 2021)
Oral thin films are novel oral vaccine carriers that could improve the mass immunization process to reach the herd immunity threshold. There are many advantages:
Easy to Store: Compared with traditional liquid vaccines, oral thin film vaccines are more accessible to store and transport, reducing refrigeration and special handling requirements.
Needle-free Delivery: The traditional way vaccines are administered is usually intramuscular and subcutaneous. Compared with conventional injectable forms, oral thin film vaccines have unique advantages, such as improving patient compliance, eliminating the risk of needle stick injuries and the need for proper disposal of medical waste.
Improved Immune Response: Oral thin film can produce strong mucosal immunity and better protection against respiratory and other transmitted diseases.
Fig.2 Zika MPs loaded in oral thin films in the buccal mucosa. (Sarthak Shah, et al., 2024)
CD Formulation is innovative and constantly exploring and has established an oral thin film drug delivery platform for the development, characterization and production of oral thin film vaccines.
The key to the oral thin film vaccine delivery system is the preparation of vaccine particles and oral thin film suspension and selecting a suitable method to prepare the oral thin vaccine.
CD Formulation also provides in vivo studies, including the design of animal models, dosing regimens, and flow cytometry analysis of immune response organs such as the spleen and lymph nodes.
Fig.3 The production method of the orally disintegrating film (ODF) loaded with the vaccine. (Rikhav P. Gala, et al., 2017)
Technology: Oral dissolving films vaccine delivery
Journal: Vaccines
IF: 3.3
Published: 2024
Results: In this study, the authors investigated a microparticulate Zika vaccine administered via the buccal route with the help of oral dissolving films (ODFs) with a prime dose and two booster doses two weeks apart. In vitro, the ODFs displayed excellent physiochemical properties, indicating that the films were suitable carriers for vaccine microparticles and biocompatible with the buccal mucosa. In vivo results revealed robust humoral (IgG, subtypes IgG1 and IgG2a) and T-cell responses (CD4+/CD8+) for ZIKV-specific immunity.
Fig.4 Buccal Administration of a Zika Virus Vaccine Utilizing 3D-Printed Oral Dissolving Films. (Sarthak Shah, et al., 2024)
CD Formulation provides global researchers with oral thin film vaccine technology services depending on our advanced oral thin film and vaccine technology platforms. If you require our oral thin film vaccine delivery technology services, please contact us by phone or email, and our colleagues will get to you within three working days.
References