Promising Treatment for Long Covid

They treated 16 patients with cholesterin and blood pressure medication and it showed a reduction of about 90 % in symptoms.

Here's an article in German about the study: https://www.hessenschau.de/gesellschaft/interview-marburger-post-covid-studie-zeigt-erstaunliche-erfolge-v1,cholesterin-long-covid-100.html

Can anyone gleen how bad the patients had it before treatment? I can't get further than the abstract in the full paper.