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CompletedNCT00642434Updated Dec 26, 2023Results posted

Comparison of Blood Pressure Medications on Metabolism

A Phase 4 interventional study of carvedilol and metoprolol in Diabetes, sponsored by University of New Mexico. Completed at 1 site in United States. Open to participants aged 45 Years to 85 Years. Per ClinicalTrials.gov, last updated 2023-12-26.

Sponsored by University of New Mexico · Phase 4, Interventional, and Diagnostic

From the registry’s dates

  • Registered 4 years 2 months after the study started (first participant enrolled Jan 2004, registered Mar 2008).
Phase
Phase 4
Study type
Interventional
Enrollment
22
Allocation
Randomized
Ages
45 Years to 85 Years
Sex
All
01

Study summary

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

Read the 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

02

Conditions studied

  • Diabetes

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Keywords

  • diabetes blood pressure oxidative stress
03

In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 22 is below the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

University of New Mexico is the lead sponsor of 306 studies on the registry; 28 are open to participants now.

Of its 25 completed or terminated interventional studies of FDA-regulated products, 23 (92%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
45 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • not enrolling

Exclusion criteria

Exclusion Criteria:

  • not enrolling
05

Study design

Phase
Phase 4
Primary purpose
Diagnostic
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
22 participants (actual)

Study arms

  • Active comparator
    1

    study drug- carvedilol

    Drug: carvedilol

  • Active comparator
    2

    study drug metorprolol

    Drug: metoprolol

Interventions

  • Drugcarvedilol

    variable

    Also known as: coreg, toprol

  • Drugmetoprolol

    variable

06

What researchers measure

Primary outcomes

  1. Number of Participants Assessed for Change in Markers of Inflammation (PAI-1) Following Treatment Compared to Baseline

    Reporting the number of participants with a change in markers of inflammation (PAI-1) following treatment compared to baseline.

    Time frame: 5 months

07

Results

Posted Dec 26, 2023

Participant flow

Participant flow — Overall Study
MilestoneMetoprololCarvedilol
Started1012
Number of participants treated1012
Completed1012
Not completed00

Outcome measures

PrimaryNumber of Participants Assessed for Change in Markers of Inflammation (PAI-1) Following Treatment Compared to Baseline

Reporting the number of participants with a change in markers of inflammation (PAI-1) following treatment compared to baseline.

Time frame:
5 months
Reported as:
Number · participants
Number of Participants Assessed for Change in Markers of Inflammation (PAI-1) Following Treatment Compared to Baseline
participantsMetoprololCarvedilol
Number of Participants Assessed for Change in Markers of Inflammation (PAI-1) Following Treatment Compared to Baseline00

Adverse events

Collected over PI left institution and study withdrawn.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Metoprolol0/10 (0%)0/10 (0%)0/10 (0%)
Carvedilol0/10 (0%)0/10 (0%)0/10 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Number of Participants Treated With MetoprololNumber of Participants Treated With CarvedilolTotal
<=18 years000
Between 18 and 65 years91120
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Number of Participants Treated With MetoprololNumber of Participants Treated With CarvedilolTotal
Female000
Male000
08

Study locations

1 site
  • UNMHSC
    Albuquerque, New Mexico 87131, United States
09

References and documents

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.
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 26, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00642434
Lead sponsor
University of New Mexico
Responsible party
Sponsor
First posted
Mar 25, 2008
Start date
Jan 2004
Primary completion
Jun 2008
Completion
Jul 2008
Results posted
Dec 26, 2023
Last update
Dec 26, 2023

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2023. You cannot join it, but the record below documents what was studied.

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