公开(公告)号：US20220008332A1

公开(公告)日：2022-01-13

申请号：US17486137

申请日：2021-09-27

Applicant: FUJIFILM Corporation

Inventor： Koki KABATA ,  Nobuhiro SHIONOZAKI ,  Hisahiro MORI

IPC: A61K9/00 ,  A61M37/00 ,  A61K39/145 ,  B29C43/02 ,  B29C43/56

Abstract: An object of the present invention is to provide a microneedle array in which the stability of influenza vaccine during production is satisfactory and the utilization efficiency of the influenza vaccine is high, and a method of producing the same. According to the present invention, provided is a self-dissolving microneedle array including a sheet portion, and a plurality of needle portions which are present on an upper surface of the sheet portion, in which the needle portion contains a saccharide, influenza vaccine, a natural amino acid or a salt thereof, and a surfactant and the influenza vaccine is administered into a body by dissolution of the needle portions.