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Fullterm BirthAUBENCT00951860

Assessment of Autonomic Maturation in Neonatal Period and Early Neural Development From a Longitudinal Prospective Cohort

An observational study of Fullterm Birth and Neonate, run by Centre Hospitalier Universitaire de Saint Etienne at 1 site in France.

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

The heart rate variability assessment of the sympathetic-parasympathetic balance is a strong analytical tool in the autonomic nervous system (ANS) physiology, at each end of life. Read more about this study

Who is it for?
Ages Up to 1 weekHealthy volunteers can take part
Conditions the study is for
Fullterm Birth, Neonate, Prematurity
What is being tested?
Autonomic Nervous System activity
How many people
302 participants
Where
1 siteFrance
Study dates
Sep 2009to Jul 2014
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 week
  • All sexes
  • Healthy volunteers accepted
  • Child

Study population: Every child born in the CHU of Saint-Étienne (inborn), any term of its birth, in the hospital neonatal unit at the time of registration (after 37 weeks corrected for prematurity) or in the maternity

Who may be able to join

  • Every child born in the CHU of Saint-Étienne (inborn), any term of its birth, in the hospital neonatal unit at the time of registration (after 37 weeks corrected for prematurity) or in the maternity
  • Written consent signed by parents
  • Parents affiliated in a Social Security regimen

Who cannot join

  • History of intrafamilial dysautonomia
  • Heart malformation, congenital abnormality of the brainstem
  • Permanent troubles of heart rate
  • Any therapy at the time of the study or made in the weeks preceding the study, referred to cardiac or respiratory or known to alter the activity of the ANS
  • General anesthesia within 2 weeks prior to registration

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU de Saint-Etienne

    Saint-Etienne, 42055

Other trials in France

About this study

Official title: Assessment of Autonomic Maturation in Neonatal Period and Early Neural Development From a Longitudinal Prospective Cohort : the AuBE Study

The heart rate variability assessment of the sympathetic-parasympathetic balance is a strong analytical tool in the autonomic nervous system (ANS) physiology, at each end of life.

In neonatology, it represents an important marker for understanding the breath and cardiac dysfunction, incriminated in the pathophysiology of unexplained death syndrome and apnea-bradycardia of prematurity.

Read more

If recent clinical studies conducted by our team highlight a close link between the maturation degree of the ANS and gestational or postnatal age, with a substantial autonomic dysfunction in preterm infants, no study to date has focused profile autonomic maturation in the first two years of life, as that period for the infant is a vulnerability "window" especially cardiopulmonary and neurological.

Psychomotor prognosis of newborns is more serious if prematurity is important and if periventricular leukomalacia or cortical anatomical brain lesions are obvious. However, the conventional imaging (Trans fontanel ultrasound, CT, MRI) is not sufficient in the neonatal period to thoroughly evaluate the neurological risk situations. During the neonatal period, the assessment of autonomic control, in practice easily quantifiable from time and frequency-domain analysis of cardiac RR variability, could be a strong marker, at a given time, from a neurological disorder undetectable by imaging, including sympathetic and parasympathetic nerve conduction dysfunction in some brainstem nuclei and cortical areas.

The postnatal profile of the autonomic balance, as a marker of well ANS regulation could become an additional support to correlate transient or permanent autonomic deficit with a psychomotor development disorder at 2 years of age or later. This tool could be a help to target the children with a neurological risk and to schedule early therapeutic interventions and psychological or educational support.

Read the detailed description

To meet this objective, we propose to describe for the first time in a cohort of newborns, the cardiac autonomic maturation profile in the first two years of life and the neurological evolution at 2 years.

Main objective.

  • Describe the pattern, i.e. the cardiac autonomic maturation during the first two years of life in a cohort of newborns.

Secondary objectives.

  • Correlate in this cohort, the autonomous status at birth to the neurological psychomotor status at 2 years.
  • Describe the autonomic pattern (evolution profile) during the first two years of life.
  • According to specific criteria of pregnancy (maternal smoking, maternal hypertension and gestational age)
  • According to data of morphometry (stature and weight development) at birth.
  • According to the neonatal morbidity criteria: - bronchopulmonary dysplasia i.e. oxygen dependence at 36 weeks postnatal age, persistent ductus arterious, intra ventricular haemorrhage according to the Papille classification, periventricular leukomalacia, enterocolitis, nosocomial sepsis.
  • According to the incidence of serious faintness and rhythmic disorders the two first years of life.
Being tested
Autonomic Nervous System activity
Keywords
Fullterm Birth, Neonate, Prematurity, Neurodevelopment, Autonomic Nervous System activity
Medical subject headings
Premature Birth

What participants receive

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

  • Autonomic Nervous System activityOther

    Autonomic activity measured at birth and at 6, 12, 18 and 24 months is represented by time-domain indices (SDNN index, SDANN, pNN50) and frequency- domain indices(PTOT, VLF, LF, HF, ratio LF / HF, LFnu, HFnu), which reflect the short-term variability (parasympathetic branch) and medium term (ortho and parasympathetic branch) of the vegetative balance. This subtle technical assessment of autonomic functioning has been validated in the literature for two decades

Study groups in NCT00951860
Study groupRoleWhat they receive
NewbornEvery child born in the CHU of Saint-Étienne (inborn), any term of its birth, in the hospital neonatal unit at the time of registration (after 37 weeks corrected for prematurity) or in the maternity
Receives: Other: Autonomic Nervous System activity

What is being measured

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

  1. Autonomic activity is represented by time-domain indices and frequency- domain indices, which reflect the short-term variability (parasympathetic branch) and medium term (ortho and parasympathetic branch) of the vegetative balance.

    Measured: at birth and at 6, 12, 18 and 24 months

Secondary outcomes (2)
  1. the Bayley Scales of Infant Development, developmental with 4 areas of evaluation (motor or postural, oculomotor coordination, language, social relations) to calculate the global and partial quotient Development (QD).

    Measured: At 24 months

  2. Specific criteria of pregnancy

    Measured: at birth

Timeline

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

  1. First posted4 Aug 2009 (estimated)
  2. Study startSep 2009
  3. Primary completionJul 2014
  4. Study completionJul 2014

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
302 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00951860
Sponsor's protocol ID
0908020
Other IDs
2009-A00325-52
Acronym
AUBE
Status last verified
Sep 2014
First submitted
3 Aug 2009
Last updated
23 Sep 2014
Results posted
No
Data monitoring committee
No

Publications

  • Patural H, Teyssier G, Pichot V, Barthelemy JC. [Normal and changed heart rate maturation of the neonate]. Arch Pediatr. 2008 Jun;15(5):614-6. doi: 10.1016/S0929-693X(08)71851-7. No abstract available. French.

    PubMed 18582690
  • Patural H, Pichot V, Jaziri F, Teyssier G, Gaspoz JM, Roche F, Barthelemy JC. Autonomic cardiac control of very preterm newborns: a prolonged dysfunction. Early Hum Dev. 2008 Oct;84(10):681-7. doi: 10.1016/j.earlhumdev.2008.04.010. Epub 2008 Jun 16.

    PubMed 18556151
  • De Rogalski Landrot I, Roche F, Pichot V, Teyssier G, Gaspoz JM, Barthelemy JC, Patural H. Autonomic nervous system activity in premature and full-term infants from theoretical term to 7 years. Auton Neurosci. 2007 Oct 30;136(1-2):105-9. doi: 10.1016/j.autneu.2007.04.008. Epub 2007 Jun 7.

    PubMed 17556047

Questions about this trial

What is this clinical trial studying?

An observational study of Fullterm Birth and Neonate, run by Centre Hospitalier Universitaire de Saint Etienne at 1 site in France.

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 5 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 23 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 France. 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?

Autonomic activity is represented by time-domain indices and frequency- domain indices, which reflect the short-term variability (parasympathetic branch) and medium term (ortho and parasympathetic branch) of the vegetative balance. (time frame: at birth and at 6, 12, 18 and 24 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00951860, which also lists 3 linked publications.

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 23 Sep 2014.

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