Coconut Sugar Lowers Blood Pressure and Arterial Stiffness in Middle-aged and Older Adults

Sponsor
Ball State University (Other)
Overall Status
Completed
CT.gov ID
NCT05645991
Collaborator
(none)
22
1
2
46.5
0.5

Study Details

Study Description

Brief Summary

The goal of this intervention is to determine the efficacy of coconut sap powder (CSP) to lower arterial stiffness and blood pressure in middle-aged and older adults. Participants will be randomized to the CSP arm or Placebo arm of the study. Primary endpoints include: aortic stiffness assessed by carotid-femoral pulse wave velocity, resting brachial and (non-invasive) carotid blood pressure, and carotid stiffness (e.g. Beta stiffness index, Carotid compliance, Elastic modulus, Distensibility).

Condition or Disease Intervention/Treatment Phase
  • Dietary Supplement: Coconut Sap Powder (CSP)
  • Dietary Supplement: Placebo
N/A

Study Design

Study Type:
Interventional
Actual Enrollment :
22 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Outcomes Assessor)
Primary Purpose:
Prevention
Official Title:
Effects of Novel Coconut Inflorescence Sap (CSP; COCOZEN) on Age-related Cardiovascular Function
Actual Study Start Date :
Mar 8, 2018
Actual Primary Completion Date :
Feb 28, 2020
Actual Study Completion Date :
Jan 20, 2022

Arms and Interventions

Arm Intervention/Treatment
Placebo Comparator: Placebo

Capsules containing aspartame (1.5 g/day) were taken orally once daily for 8 weeks.

Dietary Supplement: Placebo
Capsules containing aspartame (1.5 g/day) were taken orally once daily for 8 weeks.

Experimental: Coconut Sap Powder

Capsules containing coconut sap powder (CSP; 1.5 g/day) were taken orally once daily for 8 weeks.

Dietary Supplement: Coconut Sap Powder (CSP)
CSP was given once daily (1.5 g/day) for 8 weeks.
Other Names:
  • COCOZEN
  • Coconut Inflorescence Sap
  • Outcome Measures

    Primary Outcome Measures

    1. Change in aortic stiffness [Baseline and 8 weeks]

      Carotid-femoral pulse wave velocity (meters/second)

    2. Change in systolic and diastolic brachial blood pressure [Baseline and 8 weeks]

      Manual sphygmomanometer (mmHg)

    3. Change in carotid systolic and diastolic blood pressure [Baseline and 8 weeks]

      Applanation tonometry of carotid artery (mmHg)

    4. Change in carotid artery stiffness - beta stiffness index [Baseline and 8 weeks]

      Carotid artery Beta stiffness index (AU)

    5. Change in carotid artery stiffness - carotid compliance [Baseline and 8 weeks]

      Carotid artery carotid compliance (mmHg/mm^2)

    6. Change in carotid artery stiffness - elastic modulus [Baseline and 8 weeks]

      Carotid artery elastic modulus (kilopascals, kPa)

    7. Change in carotid artery stiffness - Young's modulus [Baseline and 8 weeks]

      Carotid artery Young's modulus (kilopascals, kPa)

    8. Change in carotid artery stiffness - distensibility [Baseline and 8 weeks]

      Carotid artery distensibility (10^-3/kilopascals)

    Secondary Outcome Measures

    1. Change in inflammatory biomarker - interleukin 6 [Baseline and 8 weeks]

      Biomarker: Interleukin 6 pg/mL

    2. Change in inflammatory biomarker - interleukin 10 [Baseline and 8 weeks]

      Biomarker: Interleukin 10 pg/mL

    3. Change in inflammatory biomarker - interleukin 1 beta [Baseline and 8 weeks]

      Biomarker: Interleukin 1 beta pg/mL

    4. Change in inflammatory biomarker - tumor necrosis factor alpha [Baseline and 8 weeks]

      Biomarker: Tumor necrosis factor alpha pg/mL

    5. Change in inflammatory biomarker - monocyte chemoattractant protein 1 [Baseline and 8 weeks]

      Biomarker: Monocyte chemoattractant protein 1 pg/mL

    6. Change in inflammatory biomarker - high sensitivity C-reactive protein [Baseline and 8 weeks]

      Biomarker: High sensitivity C-reactive protein mg/mL

    7. Change in oxidative stress biomarkers - superoxide dismutase [Baseline and 8 weeks]

      Biomarker: Superoxide dismutase U/mL

    8. Change in oxidative stress biomarkers - Catalase [Baseline and 8 weeks]

      Biomarker: Catalase U/mL

    9. Change in oxidative stress biomarkers - Oxidized low density lipoprotein [Baseline and 8 weeks]

      Biomarker: Oxidized Low density lipoprotein mU/L

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    40 Years to 80 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    Yes
    Inclusion Criteria:
    • Body mass index 18-35 kg/m2

    • Brachial blood pressure <140/90

    • Nonsmoker

    • No known clinical disease, or suggestive signs or symptoms of clinical disease

    • Free of alcohol or drug dependence

    Exclusion Criteria:
    • taking any anti-hypertensive, lipid lowering or other cardiovascular altering medications

    • Known allergies to coconut or tree nuts (i.e., cashews, almonds, or pistachios)

    • Engaging in vigorous intensity exercise

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Ball State University Muncie Indiana United States 47306

    Sponsors and Collaborators

    • Ball State University

    Investigators

    None specified.

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Brad Fleenor, Associate Professor, Ball State University
    ClinicalTrials.gov Identifier:
    NCT05645991
    Other Study ID Numbers:
    • COCOZEN
    First Posted:
    Dec 12, 2022
    Last Update Posted:
    Dec 12, 2022
    Last Verified:
    Dec 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No

    Study Results

    No Results Posted as of Dec 12, 2022