Study to Evaluate Microbiome Composition and Diversity Signature Using Endoscopic Ultrasound


About this study

The specific aims of this study are as follows:

Aim # 1:  To determine the prevalence of pancreas solid tumor intratumoral microbiota, their composition and diversity in specimens prospectively acquired via endoscopic ultrasound (EUS).

Aim # 2:  To investigate both the oral and duodenal microbiome of such patients to evaluate for similarities and differences.


Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Patients (≥ 18 years of age) with a solid pancreas tumor requiring a clinical endoscopic ultrasound for diagnostic and staging purposes. 
  • Freely of their own will, able to complete a written informed consent.

Exclusion Criteria:

  • Patients under 18 years of age.
  • Pregnant.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Ferga Gleeson, M.B., B.Ch., M.D.

Contact us for the latest status

Contact information:

Ferga Gleeson M.B., B.Ch., M.D.

More information


Publications are currently not available

Additional contact information

Cancer-related trials contact form

Phone: 855-776-0015 (toll-free)

International patient clinical studies questions