Targeting Pathways in Polycystic Ovary Syndrome (PCOS) Using Metformin (MET)


  • Study type

  • Study phase

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

  • Site IRB
    • Rochester, Minnesota: 13-000692
    NCT ID: NCT02086526
    Sponsor Protocol Number: 13-000692

About this study

The investigator's global hypothesis is that women with Polycystic Ovary Syndrome (PCOS) can be separated into subtypes based on their response to metformin. The investigators propose here to use both targeted and non-targeted metabolomic approach to identify pathways associated with metformin's effect on insulin sensitivity and endothelial function. This pilot project will be the foundation for developing tailored therapeutic approaches to Polycystic Ovary Syndrome and identifying novel drug targets.

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. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Body mass index (BMI) greater than or equal to 25
  • Polycystic Ovary Syndrome criteria of both oligomenorrhea (<9 menses per year) and androgen excess [clinical hirsutism (Ferriman-Gallway score >8 or severe acne) or elevated testosterone].
  • Taking no medications for the treatment of insulin resistance.

Exclusion Criteria:

  • Diagnosis of Cushing's syndrome
  • Untreated hypo/hyperthyroidism
  • Elevated prolactin
  • Congenital adrenal hyperplasia
  • Renal insufficiency (creatinine > 1.5)
  • Diabetes
  • Medications that can significantly affect endothelial function
  • Pregnancy
  • Breast Feeding
  • Taking oral contraceptives
  • Currently smoking

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Alice Chang, M.D.

Closed for enrollment

Contact information:

Kim Jensen



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