Status:

COMPLETED

Blueberries for Improving Vascular Endothelial Function in Postmenopausal Women With Elevated Blood Pressure

Lead Sponsor:

Colorado State University

Collaborating Sponsors:

U.S. Highbush Blueberry Council

Conditions:

Menopause

Elevated Blood Pressure

Eligibility:

FEMALE

45-65 years

Phase:

NA

Brief Summary

Postmenopausal women are at an increased risk of developing cardiovascular disease (CVD) largely due to accelerated aging-related modifications to vascular health following menopause. The vascular end...

Eligibility Criteria

Inclusion

  • Aged 45-65 years
  • Postmenopausal women (≥ 1 years postmenopausal; natural or surgical menopause; confirmed by measurement of estradiol at a level \< 30 pg/mL and follicle-stimulating hormone at a level ≥ 30 mIU/mL)
  • Elevated or stage 1-HTN (confirmed as resting seated systolic blood pressure \< 120 or ≥ 139 mmHg and/or a diastolic blood pressure ≥ 90 mmHg using an average of 3 measurements, on 2 separate occasions - screening and baseline visits)
  • Ability to provide informed consent

Exclusion

  • Systolic blood pressure \< 120 or ≥ 139 mm Hg and/or diastolic blood pressure ≥ 90 mmHg
  • Taking \> 1 antihypertensive medication and/or taking the antihypertensive medication for \< 3 months
  • Diagnosed cancer, cardiovascular disease, diabetes, or gastrointestinal, kidney, liver, and/or pancreatic disease
  • Triglycerides \> 350 mg/dL, low-density lipoprotein cholesterol (LDL-C) ≥ 190 mg/dL, and/or taking a lipid-lowering medication
  • Hormone replacement therapy use 6 months prior to study start
  • Taking phosphodiesterase-5 inhibitors
  • Weight change ≥ 3 kg in the past 3 months, actively trying to lose weight, or unwilling to remain weight stable throughout the study
  • Current smokers or history of smoking in the past 12 months
  • Binge and/or heavy drinker (\>3 drinks on any given occasion and/or \>7 drinks/week for women, and \>4 drinks on any given occasion and/or \>14 drinks/week for men)
  • Body mass index \< 18.5 or \> 40 kg/m2
  • Active infection or antibiotic therapy
  • Allergies or contraindication to study treatments, pharmacological agents, or procedures

Key Trial Info

Start Date :

December 2 2017

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

September 30 2021

Estimated Enrollment :

43 Patients enrolled

Trial Details

Trial ID

NCT03370991

Start Date

December 2 2017

End Date

September 30 2021

Last Update

September 14 2022

Active Locations (1)

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Department of Food Science and Human Nutrition, Colorado State University

Fort Collins, Colorado, United States, 80523-1571