Comparison of Blood Pressure Medications on Metabolism

December 7, 2023 updated by: University of New Mexico

Carvedilol vs.Metoprolol: A Comparison of Effects on Endothelial Function and Oxidative Stress in Response to Acute Hyperglycemia in Patients With Type 2 Diabetes and Hypertension

The purpose of this study is to determine if there are differences, (benefits) between carvedilol and metoprolol in the treatment of HTN in patients with type 2 diabetes. Specifically we will be looking at differences in blood pressure and blood sugar control, endothelial function, inflammation, oxidative stress and coagulation.

Subjects will be randomized to one of the two beta-blockers and followed for 5 months. Each subject will undergo 4 inpatient studies where an oral glucose tolerance test will be done, Inflammatory and oxidative stress markers will be measured. Endothelial function will be measured using brachial artery ultrasound and laser skin Doppler

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The purpose of this study is to determine if there are differences, (benefits) between carvedilol and metoprolol in the treatment of HTN in patients with type 2 diabetes. Specifically we will be looking at differences in blood pressure and blood sugar control, endothelial function, inflammation, oxidative stress and coagulation.

Subjects will be randomized to one of the two beta-blockers and followed for 5 months. Each subject will undergo 4 inpatient studies where an oral glucose tolerance test will be done, Inflammatory and oxidative stress markers will be measured. Endothelial function will be measured using brachial artery ultrasound and laser skin Doppler. Baseline visit will be done when subjects are off all antihypertension medications except ACEI/ARB. Following the baseline study subjects will be randomized to study drug. The dose will be titrated until goal blood pressure is reached. Add on medication will be used if needed.

Subjects will then undergo a second study. The third study will take place after 5 months on treatment. Stud drug will then be stoppped and subjects will be restudied 2 weeks later

Study Type

Interventional

Enrollment (Actual)

22

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • New Mexico
      • Albuquerque, New Mexico, United States, 87131
        • UNMHSC

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

45 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • not enrolling

Exclusion Criteria:

  • not enrolling

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 1
study drug- carvedilol
Drug: carvedilol
variable
Other Names:
  • coreg
  • toprol
Active Comparator: 2
study drug metorprolol
Drug: metoprolol
variable

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Assessed for Change in Markers of Inflammation (PAI-1) Following Treatment Compared to Baseline
Time Frame: 5 months
Reporting the number of participants with a change in markers of inflammation (PAI-1) following treatment compared to baseline.
5 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of New Mexico

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

  • Colleran K, Aguirre L, Burge MR. Carvedilol vs. metoprolol: A comparison of effects on endothelial function and oxidative stress in response to acute hyperglycemia in patients with type 2 diabetes and hypertension. Journal of Diabetes Mellitus 2(1):146-151, 2012.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2004

Primary Completion (Actual)

June 1, 2008

Study Completion (Actual)

July 1, 2008

Study Registration Dates

First Submitted

March 21, 2008

First Submitted That Met QC Criteria

March 24, 2008

First Posted (Estimated)

March 25, 2008

Study Record Updates

Last Update Posted (Actual)

December 26, 2023

Last Update Submitted That Met QC Criteria

December 7, 2023

Last Verified

December 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UNM04094

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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