A Population Based Study Of Endocrine Hypertension

Overview

About this study

The purpose of this study is to estimate the prevalence of primary aldosteronism, hypercortisolism, primary aldosteronism and/or hypercortisolism among adults with apparent resistant hypertension in the expanded Rochester Epidemiology Project (REP) population, encompassing a 27-county region in southern Minnesota and western Wisconsin. In addition, externally validate and refine an artificial intelligence (AI)–based prediction algorithm for detection of primary aldosteronism in a population-based setting.

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:

  • Age ≥18 years

  • Resident of the expanded Rochester Epidemiology Project (REP) region, defined as the 27-county area in southern Minnesota and western Wisconsin, during the study period

  • Apparent resistant hypertension, defined as:

    • systolic blood pressure ≥130 mmHg or diastolic blood pressure ≥80 mmHg while prescribed ≥3 antihypertensive medication classes (ideally including a diuretic), or

    • controlled blood pressure (<130/80 mmHg) while prescribed ≥4 antihypertensive medication classes

  • Active care within a REP-participating healthcare system, with sufficient electronic health record data to ascertain blood pressure and antihypertensive medication use

  • Willingness and ability to provide informed consent

  • Willingness to undergo study procedures, including blood sampling and overnight dexamethasone suppression testing

Exclusion Criteria:

  • Known diagnosis of PA already fully established and treated

  • Known adrenal insufficiency or hypercortisolism

  • Current oral glucocorticoid therapy

  • Pregnancy

  • End-stage illness or inability to safely participate

  • Inability to comply with required medication or testing instructions

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 04/20/2026. Questions regarding updates should be directed to the study team contact.

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

Irina Bancos, M.D., M.S.

Contact us for the latest status

More information

Publications

Publications are currently not available

Additional contact information

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Phone: 800-664-4542 (toll-free)

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