Clinical Trial Registries

• ClinicalTrials.gov: https://clinicaltrials.gov/

Search for “myalgic encephalomyelitis” or “chronic fatigue syndrome.” Filter by recruiting status and location.

• EU Clinical Trials Register: https://www.clinicaltrialsregister.eu/

European clinical trials database.

• ME/CFS Research Register: https://mrr.mecfs-research.org/

Curated, publicly browseable register of ME/CFS research (projects, networks, publications, events, research types, research areas, working groups, people, and organisations). Maintained by the ME/CFS Research Foundation (Hamburg). Current country scope: Germany, Austria, Switzerland, the Netherlands, Norway, and Iceland, with more countries planned. The data are regularly updated and exportable — useful for mapping the research landscape and for bulk extraction (see Research Centers and Specialized Clinics).

Questions to ask before participating:

• What are inclusion/exclusion criteria?
• What is the time commitment?
• Will travel be required? Is remote participation possible?
• What accommodations exist for severely ill participants?
• How will participant safety be monitored?
• Will results be shared with participants?