Intranasally administered insulin intended for prevention of type 1 diabetes—a safety study in healthy adults

Intranasally applied insulin is one of the antigen‐specific therapies currently tested in clinical type 1 diabetes prevention trials, for example, in the Type 1 Diabetes Prediction and Prevention Study (DIPP). The possibility that the therapy may cause hypoglycaemia or local irritation and the poorly known immunological safety of mucosal application of the antigen in healthy subjects prompted this study.

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