@marko1 If you have questions about a specific study, please use the study contact listed at the bottom of the page describing that study.

If you have general questions regarding research at Mayo Clinic or would like assistance searching for clinical studies that match your interests, please contact our staff:

Non-cancer clinical studies questions
Phone: 800-664-4542 (toll-free). This number is answered from 8 a.m. to 5 p.m. CST, Monday through Friday.

Cancer-related clinical studies questions
Phone: 855-776-0015 (toll-free). This number is answered from 7 a.m. to 6 p.m. CST, Monday through Friday.

International patient clinical studies questions
Phone: 507-284-8884. This number is answered from 7:30 a.m. to 5 p.m. CST, Monday through Friday.
Email: intl.mcr@mayo.edu