Household Controls for Clinical and Epidemiological Studies in Lymphoma and Chronic Lymphocytic Leukemia


About this study

The purpose of this study is to compare the gut microbiome (GMB) profile of patients with untreated non-Hodgkin lymphoma (NHL) and Hodgkin lymphoma (HL) and Chronic Lymphocytic Leukemia (CLL) with controls from a normal household and age-matched population.

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:

  • ≥18 years;
  • Linked to a patient with a newly diagnosed Lymphoma (NHL or HL)
  • Willing to provide a blood and stool sample

Exclusion Criteria:

  • Current or prior Lymphoma diagnosis


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

Thomas Witzig, M.D.

Closed for enrollment

Contact information:

Matthew Holets

(507) 266-7208

More information


Publications are currently not available

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