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ADHDNCT01107301

Vascular Effects of Attention Deficit Hyperactivity Disorder (ADHD) Medications in Youth

An observational study of ADHD, run by University of Minnesota at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

4.4 million children and adolescents in the United States have been diagnosed with attention deficit hyperactivity disorder (ADHD) and more than half are treated with medication. Most ADHD medications are stimulants, which activate the sympathetic nervous system (SNS). Read more about this study

Who is it for?
Ages 6 to 18 yearsHealthy volunteers can take part
Conditions the study is for
ADHD
How many people
138 participants
Where
1 siteUnited States
Study dates
Jan 2010to Jul 2013
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 18 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Study population: Eighty youth who are taking ADHD stimulant medication and eighty of their healthy siblings without ADHD.

Who may be able to join

  • Age 6-18 years old
  • Current use of ADHD stimulant drug therapy limited to methylphenidates or amphetamines
  • Sibling without ADHD between the ages of 6-18 years old

Who cannot join

  • Known (diagnosed) cardiac disease

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Minnesota

    Minneapolis, Minnesota, 55455

Other trials in United States

About this study

Official title: Vascular Consequences of ADHD Medication Use in Children and Adolescents

4.4 million children and adolescents in the United States have been diagnosed with attention deficit hyperactivity disorder (ADHD) and more than half are treated with medication. Most ADHD medications are stimulants, which activate the sympathetic nervous system (SNS). SNS activation is closely associated with vascular functional and mechanical abnormalities. Therefore, ADHD medications, via instigating SNS activation and altering the hemodynamic profile, may have untoward effects on the vasculature and increase risk of developing cardiovascular disease in children and adolescents who use them.

Our overall objective in this study is to determine whether ADHD medication use is associated SNS activation, endothelial dysfunction, and arterial stiffness in children and adolescents. We will address this objective by conducting a case-control study and obtain non-invasive measures of SNS activation, endothelial function, and arterial stiffness in children and adolescents (8-17 years old) with (using stimulant medication) and without ADHD.

Read the detailed description

SPECIFIC AIMS AND HYPOTHESES

Our overall objective in this study is to determine whether ADHD medication use is associated SNS activation, endothelial dysfunction, and arterial stiffness in children and adolescents.

Our hypothesis is:

Children and adolescents taking ADHD medications will have higher SNS activation, lower digital reactive hyperemia, and higher pulse wave velocity and aortic augmentation index compared to sibling controls without ADHD.

Study Design We will obtain non-invasive measures of SNS activation (heart rate variability), endothelial function (digital reactive hyperemia and brachial artery flow-mediated dilation), and arterial stiffness (carotid-radial pulse wave velocity; aortic augmentation index) in youth taking ADHD stimulant medication and in their healthy siblings without ADHD.

Study visits will be conducted at the Clinical and Translational Science Institute (CTSI) at the University of Minnesota. All vascular testing will occur in the Vascular Biology Laboratory within the CTSI.

Conditions
ADHD
Keywords
ADHD
Medical subject headings
Attention Deficit Disorder with Hyperactivity

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Arterial stiffness

    Carotid-radial pulse wave velocity and aortic augmentation index.

    Measured: Baseline

Secondary outcomes (2)
  1. SNS activation

    Heart rate variability.

    Measured: Baseline

  2. Endothelial Function

    Digital reactive hyperemia and brachial artery flow-mediated dilation

    Measured: Baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Apr 2010 (estimated)
  2. Study startJan 2010
  3. Primary completionJul 2013
  4. Study completionJul 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Cross-sectional
Enrolment
138 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01107301
Sponsor's protocol ID
0912M74832
Status last verified
Sep 2014
First submitted
7 Apr 2010
Last updated
5 Sep 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of ADHD, run by University of Minnesota at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Sep 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Arterial stiffness (time frame: Baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Sep 2014.

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