In an international cooperation project, researchers from the University Medical Center Göttingen (UMG), the Paracelsus-Elena-Klinik Kassel and University College London (UCL) have developed a test procedure that makes it possible to predict the diagnosis of Parkinson’s disease in at-risk patients up to seven years before the onset of typical motor symptoms using a blood sample. The next step is to further develop this test for clinical application. The four-year PROPAG-AGING project was funded by the EU with a total of around six million euros. The results have been published in the renowned journal Nature Communications.