PC19S affects a considerable portion of patients after an infection with SARS-CoV-2 with a broad range of disabling symptoms. Neurotropic vitamins such as vitamins B1, B6, an B12, and drugs with anti-inflammatory properties such as corticosteroids were suggested to alleviate symptoms. The trial is designed as a two-step approach that will~prove the feasibility of recruitment and retention of patients with PC19S in a primary care setting (pilot study, n=100)~investigate the effectiveness and safety of the treatment drugs alone and of their combination (confirmatory study, n= 340).~The pilot study will be transformed into a confirmatory study if feasibility is given, defined as retention rate of 85% after enrollment of 100 patients. Or on recommendation of the Data Safety and Monitoring Board (DSMB).~In addition, blood samples wil be analysed for routine parameters and vitamin B12 derivates as well as cytokines.
This is a multicenter, randomized, placebo controlled, double-blind phase III trial with four parallel groups studying studying the feasibility of RCT in primary care as well as the effectiveness of treatment with prednisolone and/or vitamin B1/6/12 for PC19S.