Peer-Reviewed Journal Details
Mandatory Fields
Vrdoljak, Anto; Allen, Evin A.; Ferrara, Francesca; Temperton, Nigel J.; Crean, Abina M.; Moore, Anne C.
2016
March
Journal of controlled release : official journal of the Controlled Release Society
Induction of broad immunity by thermostabilised vaccines incorporated in dissolvable microneedles using novel fabrication methods
Published
Optional Fields
Broadly-neutralizing antibody Influenza vaccine Microneedle Stability Virus vector vaccine
225
192
204
Dissolvable microneedle (DMN) patches for immunization have multiple benefits, including vaccine stability and ease-of-use. However, conventional DMN fabrication methods have several drawbacks. Here we describe a novel, microfluidic, drop dispensing-based dissolvable microneedle production method that overcomes these issues. Uniquely, heterogeneous arrays, consisting of microneedles of diverse composition, can be easily produced on the same patch. Robustness of the process was demonstrated by incorporating and stabilizing adenovirus and MVA vaccines. Clinically-available trivalent inactivated influenza vaccine (TIV) in DMN patches is fully stable for greater than 6months at 40 degrees C. Immunization using low dose TIV-loaded DMN patches induced significantly higher antibody responses compared to intramuscular-based immunization in mice. TIV-loaded patches also induced a broader, heterosubtypic neutralizing antibody response. By addressing issues that will be faced in large-scale fill-finish DMN fabrication processes and demonstrating superior thermostable characteristics and immunogenicity, this study progresses the translation of this microneedle platform to eventual clinical deployment.
1873-4995
https://www.sciencedirect.com/science/article/pii/S0168365916300189
10.1016/j.jconrel.2016.01.019
Grant Details