Skip to main content
OpenTrials
Completed

NCT Number: NCT03976336

Evaluating the Tolerability and Effects of Berberine on Major Metabolic Biomarkers: A Pilot Study

Berberine is a dietary supplement that comes from the roots, stems, and bark of various plants and has been used for centuries in traditional Chinese medicine. It may help lower cholesterol, lower blood sugar, and reduce inflammation.Very few studies have been done in the United States to show how berberine effects cholesterol and blood sugar. This study is looking to see how berberine changes cholesterol and blood sugar, and to see how well it is tolerated.Berberine is not a prescription medication but it appears to have similar actions to common prescription medications to lower cholesterol like statins, and to lower blood sugar like metformin. We are studying berberine to see if it may be a good option for people that do not want to take prescription medications.

Completed

Looking for future studies?

Notify Me

Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Kansas Medical Center

Kansas City, Kansas, 66160, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age ≥18 years and older
  • Current LDL-C of ≥80 mg/dL or higher
  • Current fasting triglyceride level of ≥300 mg/dL
  • Meets current criteria for metabolic syndrome (≥3 of the following):

Waist circumference ≥ 35" female or ≥40" for male:

Triglycerides ≥ 150 mg/dL:

Low HDL-c <40 mg/dL male or <50 mg/dL female:

Elevated blood pressure ≥ 130/85 mmHg (or on BP medication):

Elevated fasting blood glucose ≥100 mg/dL

  • A male or a non-pregnant female
  • Mentally competent to understand study rationale and protocol
  • Able to speak and read English

Exclusion criteria

  • Currently taking any lipid-altering agents including but not limited to statins, niacin (>500 mg), bile-acid sequestrants, ezetimibe, fibrates, and Omega-3 fish/krill oils (>1000 mg EPA/DHA).
  • Prior evidence of a vascular event (e.g. stroke, myocardial infarction, revascularization, peripheral vascular disease)
  • Current use of any oral hypoglycemia agent or parenteral medication for diabetes mellitus (e.g. GLP-1 agonists, insulin)
  • Currently taking any drugs with the potential to interact with berberine, including but not limited to cyclosporine, simvastatin, lovastatin, metformin, saquinavir, darunavir, tacrolimus, sirolimus.
  • Previous history of diabetes mellitus, HbA1c ≥ 6.5%, or FPG > 126 mg/dL
  • Chronic disease involving, hepatic, renal, or coronary heart disease, systemic infection (e.g. HIV) or organ transplantation
  • Currently taking systemic steroidal drugs
  • Dependence on alcohol (> 10 drinks per week) or illicit drugs
  • Pregnant or lactating
  • Participation in any other clinical trial within the last 30 days
  • Presence of any medical or psychological condition that in the opinion of the investigator will compromise safe subject participation for the duration of the study
  • Acute or chronic GI conditions (e.g. irritable bowel syndrome, ulcerative colitis)

Treatment and study plan

Berberine

Dietary Supplement

500 mg berberine (1 capsule) with breakfast and 1000 mg (2 capsules) with the evening meal, 1500 mg total

Identical Placebo

Other

500 mg (1 capsule) with breakfast and 1000 mg (2 capsules) with the evening meal, 1500 mg total

Primary outcomes

  1. Change in LDL Cholesterol

    Time frame: Baseline to week 12

    LDL cholesterol measured by fasting blood sample

  2. Change in Hemoglobin A1c

    Time frame: Baseline to week 12

    Glucose control as measured by fasting blood sample

Secondary outcomes

  1. Number of participants with adverse events

    Time frame: Week 4, Week 8, and Week 12

    Number of participants with adverse events will be measured by a monthly follow-up questionnaire

Sponsors and collaborators

Lead sponsor

University of Kansas Medical Center

Other

Registry information

Important dates

Study start
2019
Primary completion
2025
Study completion
2025
First posted
Jun 6, 2019
Registry last updated
Apr 4, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.