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Neonatal Abstinence SyndromeNASNCT00496951

Vagal Tone and Neonatal Abstinence Syndrome

An observational study of Neonatal Abstinence Syndrome and Vagal Tone, run by Johns Hopkins University 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

Symptoms of Neonatal Abstinence Syndrome (NAS) can be attributed largely to dysfunction of the autonomic nervous system in opiate exposed neonates. Vagal tone is a readily available measure of autonomic nervous system functioning. Read more about this study

Who is it for?
Ages Up to 1 day
Conditions the study is for
Neonatal Abstinence Syndrome, Vagal Tone
What is being tested?
Vagal tone assessment
Type of treatment
Medical device
How many people
65 participants
Where
1 siteUnited States
Study dates
Sep 2006to Sep 2008
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 Up to 1 day
  • All sexes
  • No healthy volunteers
  • Child

Study population: Drug exposed infants

Who may be able to join

  • Term infant (>= 37 weeks by 1st or second trimester sonogram),
  • In utero opiate exposure (either heroin or methadone) requiring a minimum of three day infant hospitalization after birth
  • Delivery to a client active in drug abuse treatment

Who cannot join

  • Significant medical complications in the infant
  • Circumcision within 24 hours of the proposed EKG/vagal tone measurement (circumcision has been found to affect vagal tone)
  • Infant hospitalization in the Neonatal Intensive Care Unit (NICU)
  • Psychiatric impairment of the mother such that informed consent is not possible

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Johns Hopkins Bayview Medical Center

    Baltimore, Maryland, 21224

Other trials in United States

About this study

Symptoms of Neonatal Abstinence Syndrome (NAS) can be attributed largely to dysfunction of the autonomic nervous system in opiate exposed neonates. Vagal tone is a readily available measure of autonomic nervous system functioning. NAS is a widely variable disorder with poorly understood pathophysiology; while all opiate exposed infants will exhibit some signs and symptoms of NAS, only approximately ½ have severe enough symptoms to require pharmacologic therapy. This research seeks to determine the relationship between infant vagal tone and NAS severity. The determination of a link between newborn vagal tone and NAS severity could result in the prediction of infants at risk for severe NAS and provide these infants and mothers with intensified services and early treatment, thereby shortening the course of NAS in the infant.

Read the detailed description

Consecutively born methadone exposed infants had hert period and cardiac vagal tone measurements extracted via standard EKGs on days 1 and 3 of life. The infant's NAS course was assessed serially.

Being tested
Vagal tone assessment
Keywords
Neonatal abstinence syndrome, Methadone, Vagal tone
Medical subject headings
Neonatal Abstinence Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Vagal tone assessmentDevice

    Also called EKG monitor (R wave electronics), Vagal tone monitor (Delta Biometrix)

    An EKG will be obtained using a Physio-control EKG monitor (R wave Electronics of Florida) in standard application, with three chest leads. The EKG data is inputted into a vagal tone monitor (Delta Biometrix, Bethesda MD) which computes vagal tone from the EKG signal. This data is then transferred to a disk which is analyzed off-line.

Timeline

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

  1. First posted6 Jul 2007 (estimated)
  2. Study startSep 2006
  3. Primary completionSep 2008
  4. Study completionSep 2008

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
Cohort
Time perspective
Prospective
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00496951
Sponsor's protocol ID
6468
Other IDs
R01DA019934
Acronym
NAS
Status last verified
Aug 2017
First submitted
5 Jul 2007
Last updated
18 Aug 2017
Results posted
No
Data monitoring committee
No

Publications

  • Jansson LM, Dipietro JA, Elko A, Velez M. Infant autonomic functioning and neonatal abstinence syndrome. Drug Alcohol Depend. 2010 Jun 1;109(1-3):198-204. doi: 10.1016/j.drugalcdep.2010.01.004. Epub 2010 Mar 1.

    PubMed 20189732

Questions about this trial

What is this clinical trial studying?

An observational study of Neonatal Abstinence Syndrome and Vagal Tone, run by Johns Hopkins University 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 4 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 18 Aug 2017. 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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00496951, which also lists 1 linked publication.

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 18 Aug 2017.

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