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Effect of Creatine and L-Arginine on Endothelial Function

Primary Purpose

Coronary Artery Disease

Status
Completed
Phase
Not Applicable
Locations
Study Type
Interventional
Intervention
Creatine
L-arginine and creatine
l-arginine
placebo, double
Sponsored by
Boston University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional basic science trial for Coronary Artery Disease

Eligibility Criteria

18 Years - 80 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Coronary artery disease

Exclusion Criteria:

  • Pregnancy
  • Creatine use within one month of study
  • L-arginine use within one month of study
  • Change in dose or initiation of lipid lowering therapy, aspirin therapy, or angiotensin converting enzyme therapy within one month of study

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm 3

    Arm 4

    Arm Type

    Experimental

    Experimental

    Experimental

    Placebo Comparator

    Arm Label

    1

    2

    3

    4

    Arm Description

    Outcomes

    Primary Outcome Measures

    Brachial artery flow-mediated dilation

    Secondary Outcome Measures

    serum arginine, creatine, creatinine, homocysteine

    Full Information

    First Posted
    October 30, 2007
    Last Updated
    October 30, 2007
    Sponsor
    Boston University
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    1. Study Identification

    Unique Protocol Identification Number
    NCT00551434
    Brief Title
    Effect of Creatine and L-Arginine on Endothelial Function
    Official Title
    Effect of Creatine and L-Arginine on Endothelial Function in Patients With Coronary Artery Disease
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    October 2007
    Overall Recruitment Status
    Completed
    Study Start Date
    August 2002 (undefined)
    Primary Completion Date
    undefined (undefined)
    Study Completion Date
    December 2005 (Actual)

    3. Sponsor/Collaborators

    Name of the Sponsor
    Boston University

    4. Oversight

    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    The study is a double blind 2x2 factorial study. Patients with coronary disease will be randomly be assigned to L-arginine (9 g/day), creatine 21 g/d, both, or neither dietary supplement. The function of the endothelium will be tested using ultrasound before and after each treatment. These studies will help us understand why the endothelium is abnormal in patients with coronary artery disease and how L-arginine is acting on endothelial function.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Coronary Artery Disease

    7. Study Design

    Primary Purpose
    Basic Science
    Study Phase
    Not Applicable
    Interventional Study Model
    Factorial Assignment
    Masking
    ParticipantInvestigatorOutcomes Assessor
    Allocation
    Randomized
    Enrollment
    119 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    1
    Arm Type
    Experimental
    Arm Title
    2
    Arm Type
    Experimental
    Arm Title
    3
    Arm Type
    Experimental
    Arm Title
    4
    Arm Type
    Placebo Comparator
    Intervention Type
    Dietary Supplement
    Intervention Name(s)
    Creatine
    Intervention Description
    Creatine 21 g daily
    Intervention Type
    Dietary Supplement
    Intervention Name(s)
    L-arginine and creatine
    Intervention Description
    L-arginine
    Intervention Type
    Dietary Supplement
    Intervention Name(s)
    l-arginine
    Intervention Description
    l-arginine 9 g daily
    Intervention Type
    Dietary Supplement
    Intervention Name(s)
    placebo, double
    Intervention Description
    placebo
    Primary Outcome Measure Information:
    Title
    Brachial artery flow-mediated dilation
    Time Frame
    5 days
    Secondary Outcome Measure Information:
    Title
    serum arginine, creatine, creatinine, homocysteine
    Time Frame
    5 days

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Maximum Age & Unit of Time
    80 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: Coronary artery disease Exclusion Criteria: Pregnancy Creatine use within one month of study L-arginine use within one month of study Change in dose or initiation of lipid lowering therapy, aspirin therapy, or angiotensin converting enzyme therapy within one month of study
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Joseph A Vita, MD
    Organizational Affiliation
    Boston Medical Center
    Official's Role
    Principal Investigator

    12. IPD Sharing Statement

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