Die Vorträge des Circle of Experts.

Trailer-Standbild Thomas Herdegen — Circle of Experts 2026

Prof. Dr. med. Thomas Herdegen

Prof. Herdegen: medical cannabis works beyond the pain axis — the endocannabinoid system, switching from opioids, CBD safety from 300 mg.

Trailer-Standbild Sven Gottschling — Circle of Experts 2026

Prof. Dr. Sven Gottschling

Prof. Gottschling on the CHORAL study: first indications of symptom reduction through cannabinoids in palliative care.

Trailer-Standbild Nicolas Enriquez — Circle of Experts 2026

Nicolas C. Enriquez

Nicolas Enriquez on nursing perspectives on aroma care and terpenes in supporting cannabis patients (content for healthcare professionals).

Trailer-Standbild Christiane Neubaur — Circle of Experts 2026

Dr. Christiane Neubaur

Dr. Christiane Neubaur (VCA) on the CanG assessment, telemedicine quality and the role of pharmacies in cannabis supply.

Trailer-Standbild Eckhard Nagel — Circle of Experts 2026

Prof. Dr. mult. Eckhard Nagel

Prof. Dr. Eckhard Nagel (University of Bayreuth) calls for more clinical evidence and exchange on cannabis as a medicine. Trailer 2026.

Trailer-Standbild Kirsten Müller-Vahl — Circle of Experts 2026

Prof. Dr. med. Kirsten Müller-Vahl

Prof. Müller-Vahl (MHH) on cannabinoids in ADHD: evidence, the nabiximols study, safety in adolescents, the role of THC.

Trailer-Standbild Daniel Huse — Circle of Experts 2026

Dr. med. Daniel Huse

Dr. med. Daniel Huse on fascia, CB1 receptors and cannabinoids in osteopathically informed pain therapy.

Trailer-Standbild Johannes Hoffmann — Circle of Experts 2026

Johannes Hoffmann

Johannes Hoffmann (pharmacist, Melle): cannabis preparations, bioavailability, terpenes and Hilfstaxe billing. Trailer 2026.

Trailer-Standbild Matthias Giesel — Circle of Experts 2026

Dr. med. Matthias Giesel

Dr. Giesel classifies fibromyalgia as a resilience disorder — new pain-medicine perspectives for healthcare professionals.

Trailer-Standbild Konrad Cimander — Circle of Experts 2026

Dr. med. Dipl.-Chem. Konrad F. Cimander

Dr. Cimander: cannabis medicine between indication and consumption — 15,000 studies, a lack of prescribers, a new generation of doctors.

Sascha Saßen

Sascha Saßen: a nursing perspective on medical cannabis — treatment relevance instead of a pain scale, BESD and PAINAD for the cognitively impaired.

In Kürze

Was ist der Circle of Experts?

Der Circle of Experts ist ein eintägiges Fachforum zu Medizinalcannabis, das Four 20 Pharma einmal jährlich in Paderborn ausrichtet.

Auf dem Programm stehen klinische Fachvorträge, eine Besichtigung der GMP-Produktion und eine offene Fachdiskussion.

Adressaten sind ausschließlich Ärzt:innen, Apotheker:innen und Pflegefachkräfte. Die Teilnahme ist kostenfrei. Optional können sich teilnehmende für das kostenpflichtige Networking-Dinner nach dem Event anmelden. CME-Punkte werden nicht vergeben.

Große Gruppe Menschen winkt auf Balkon eines modernen Bürogebäudes bei sonnigem Wetter.

Die Fachexpert:innen 2026

Klinik, Forschung, Apotheke und Pflege — die Sprecher:innen kommen aus den Bereichen, in denen Medizinalcannabis täglich angewendet wird.

Portrait von Prof. Dr. mult. Eckhard Nagel

Prof. Dr. mult. Eckhard Nagel

Prof. Dr. mult. Eckhard Nagel is Managing Director of the Institute of Medical Management and Health Sciences at the University of Bayreuth. At the Circle of Experts, he examines the ethical aspects of medical cannabis therapy and advocates for real-world studies.

Arzt/Ärztin
Portrait von Prof. Dr. med. Thomas Herdegen

Prof. Dr. med. Thomas Herdegen

Prof. Dr. med. Thomas Herdegen is a specialist in pharmacology and toxicology and was for many years deputy head of the Institute of Experimental and Clinical Pharmacology at UKSH Kiel. He is co-author of the Cannabis practice guideline and recipient of the German Pain Award 2024.

Arzt/Ärztin
Portrait von Dr. med. Dipl.-Chem. Konrad F. Cimander

Dr. med. Dipl.-Chem. Konrad F. Cimander

Dr. med. Dipl.-Chem. Konrad F. Cimander is a specialist in general and addiction medicine, heads the K.C.M. Hannover Competence Center for cannabis medicine and is President of the German Medical Cannabis Society (DMCG). He is a lecturer on addiction medicine, psychopharmacology and cannabis medicine.

Arzt/Ärztin
Portrait von Prof. Dr. med. Kirsten Müller-Vahl

Prof. Dr. med. Kirsten Müller-Vahl

Prof. Dr. med. Kirsten Müller-Vahl is a specialist in neurology and psychiatry at the MHH and chairwoman of the ACM and IACM. She leads randomized controlled trials on cannabinoids in Tourette syndrome and tic disorders.

Arzt/Ärztin
Portrait von Prof. Dr. Sven Gottschling

Prof. Dr. Sven Gottschling

Prof. Dr. med. Sven Gottschling is head physician of the Center for Cross-Age Palliative Care and Pediatric Pain Therapy at Saarland University Medical Center. He has over 25 years of experience with cannabis prescriptions in palliative and pain therapy.

Arzt/Ärztin
Portrait von Dr. Christiane Neubaur

Dr. Christiane Neubaur

Dr. Christiane Neubaur is a pharmacist and Managing Director of the Association of Cannabis-Dispensing Pharmacies (VCA). She hosts the podcasts „VCA Hanf Gespräch“ and „ArztCann“ and is co-author of the non-fiction book „Cannabis – Heilkraft der Natur“.

Arzt/Ärztin
Portrait von Dr. med. Matthias Giesel

Dr. med. Matthias Giesel

Dr. Matthias Giesel is a specialist in anesthesiology and heads the pain clinic at Marienkrankenhaus Soest as well as the practice for pain therapy and palliative medicine at the Hospitalverbund MVZ Soest. He works as a consultant to the pharmaceutical industry on medicinal cannabis.

Arzt/Ärztin

Dr. med. Daniel Huse

Dr. med. Daniel Huse is a specialist in anesthesiology with a focus on pain management, palliative and osteopathic medicine. In his private practice in Remagen, medical cannabis has been an integral part of treating chronic pain since 2017.

Arzt/Ärztin

Johannes Hoffmann

Johannes Hoffmann is a pharmacist and founder of the Alle Farben Apotheke (Schreibersche Apotheke Melle), specializing in medical cannabis with flowers, extracts and bespoke compounded formulations – particularly for palliative care.

Apotheker/Apothekerin

Sascha Saßen

Sascha Saßen holds a degree in nursing management (Diplom-Pflegewirt), is a certified pain expert (CEKIP) and has been CEO of the hesena Group since April 2025. At the Circle of Experts he spoke on pain management in inpatient long-term care and on the medication process in nursing and palliative care.

Geschäftsführung

Nicolas C. Enriquez

Nicolas C. Enriquez is a health and pediatric nurse and a lecturer for nursing professions. With a Master's in Health Care Administration, he works as a freelance consultant on clinical research and the evidence-based use of medical cannabis.

Pflegekraft

André Ihlenfeld

Dr. André Ihlenfeld is a specialist in anesthesiology and a pain physician, as well as Medical Director at Copeia, where he is responsible for projects on patient-reported data collection under cannabis therapy (including the Physicians Experience Platform). He is co-author of publications on cannabis-based medicines.

Arzt/Ärztin

Knowledge from daily practice

Therapeutic Safety

Latest information on mechanisms of action, interactions, and side effect profiles. Discussed using clinical cases, not based on promotional materials.

Compounding & Supply

Practical knowledge on compounding, storage, controlled substance-compliant dispensing, and supply chains. With contributions from the Association of Cannabis-Supplying Pharmacies.

Patient Communication

Patient counseling, expectation management, interprofessional handover — what works in consultations, at the pharmacy counter, and in nursing.

Network

Direct access to pain specialists, neurologists, nursing experts, and supplying pharmacies in the DACH region. Lasting contacts.

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