Contact Information

For questions about participating in clinical trials at Mayo Clinic, call:

Research Volunteer Program (general clinical research questions)

800-664-4542 (toll-free)
8 a.m. to 5 p.m. Central time, Monday through Friday
Email: clinicaltrials@mayo.edu

Mayo Clinic Cancer Center Inquiries (cancer-related clinical research questions)

507-538-7623
7 a.m. to 7 p.m. Central time, Monday through Thursday; 7 a.m. to 6 p.m., Central time, Friday

International Research Inquiries

507-284-8884
8 a.m. to 5 p.m. Central time, Monday through Friday
Email: intl.mcr@mayo.edu