Pombeiro Stein, Inês C.A.
Fitzner, Franziska
Dusch, Martin
Kessler, Christian S.
Fischer, Jan Moritz
Kandil, Farid-Ihab
Freigang, Felix
Karst, Matthias
Funding for this research was provided by:
Medizinische Hochschule Hannover (MHH)
Article History
Received: 14 February 2026
Accepted: 16 April 2026
First Online: 21 April 2026
Declarations
:
: This study was registered with the German Clinical Trials Register (DRKS00037434), after approval by the local ethics committee (No. 8391_B0-K_2019). Prior to the interviews’, written consent was obtained from the patients; patients were free to withdraw from the study at any time or refuse to answer questions if they were uncomfortable.
: Not applicable.
: MD has received speaker honoraria from Gruenenthal and Hexal. He has received expert opinion fees from several local and social courts. His institution has received research support from Avextra, Lundbeck, Novartis, Tilray Medical, Gruenenthal, Teva, Vertanical, Stadapharm, Viatris and Federal Joint Committee.CK is a member of the scientific advisory board of the company Bruno Zimmer; chair of the board of the German Medical Doctors’ Association for Ayurveda Medicine (DÄGAM e.V.); chairman of the Board of Trustees of the German Ayurveda Foundation; he has received honoraria for lecturing Ayurveda at Sonne und Mond, Berlin; his institution has received research support from Vayamed.MK has received speaker honoraria from the Federal Association of Pharmaceutical Cannabinoid Companies (BPC), Cannabis Social Club Bolzano, Cannamedical, Demecan, Grunenthal, Hormosan, Meet Your Master, Medical Service of the Health Insurance Funds, Novartis, Stadapharm and Tilray. He has received consultancy fees from Tetra Pharm and Vertanical. He has received expert opinion fees from several local and social courts. His institution has received research support from Friedrich and Alida Gehrke Foundation, German Pension Insurance Braunschweig-Hannover, Lower Saxony Ministry for Science and Culture, and Vayamed.All other authors declare that they have no competing interests.