Understanding the Contents of Exhaled Breath in Health and Disease


About this study

This research study is being done because we want to better understand the composition of exhaled breath and exhaled breath condensate in health and disease and at different stages of disease to determine if there are markers in this easy to collect sample that can help us understand disease progression and give earlier warning that health or disease status is declining and improve treatment for patients.

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.

Subject population:  Healthy and those with heart failure

Inclusion Criteria:

  • Minimum age of 18

Exclusion Criteria: 

  • Inability to sit and provide an exhaled breath condensate collection

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

Rochester, Minn.

Mayo Clinic principal investigator

Bruce Johnson, Ph.D.

Closed for enrollment

More information


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