The American research consortium Type 1 Diabetes TrialNet presented their results of a Phase II study with the antigen-based diabetes therapy Diamyd® yesterday, June 27, at the American Diabetes Association 71st Scientific Sessions (ADA) in San Diego, California, USA, after the closing of the stock market. At the same time a research article about the study was published on the homepage of the medical journal The Lancet entitled ”Antigen-based therapy with glutamic acid decarboxylase (GAD) vaccine in patients with recent-onset type 1 diabetes: a randomised double-blind trial”. The study did not reach the primary efficacy endpoint of preserving endogenous insulin production, as measured by meal-stimulated C-peptide, in patients treated with Diamyd® compared to placebo. There was no statistically significant difference in hemoglobin A1c (HbA1c) or mean daily insulin dose between the groups receiving Diamyd® and the placebo treated group.