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Hypoxic Ischaemic EncephalopathyNCT02800018

Correlation of Risk Factors and Severity of Hypoxic-ischaemic Encephalopathy

An observational study of Hypoxic Ischaemic Encephalopathy, run by University Children's Hospital, Zurich at 1 site in Switzerland.

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 first aim of this study is to analyse perinatal risk factors leading to hypoxic ischaemic encephalopathy in term and near term neonates born in Switzerland who were admitted to the neonatal and intensive care units offering hypothermia therapy. Read more about this study

Who is it for?
Ages 35 to 42 weeks
Conditions the study is for
Hypoxic Ischaemic Encephalopathy
What is being tested?
risk factors
How many people
160 participants
Where
1 siteSwitzerland
Study dates
Jun 2016to Dec 2017
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 35 to 42 weeks
  • All sexes
  • No healthy volunteers
  • Child

Study population: Neonates born >35 0/7 gestational weeks with clinical signs of hypoxic encephalopathy with Apgar Score<5 with 10minutes of life, mechanical ventilation with 10minutes of life, pH 7.0 or BE -16mmol/L, lactate >12mmol/L within 60minutes after birth, and seizures or Sarnat staging II-III or Thompson Score >7.

Who may be able to join

  • This study includes data of neonates suffering from hypoxic-ischaemic encephalopathy born with a gestational age > 35 0/7 weeks, who were admitted to the neonatal and intensive care units in Switzerland between 2011-2013 and were treated with therapeutic hypothermia.

Who cannot join

  • Neonates with hypoxic-ischaemic encephalopathy, born with a gestational age < 35 0/7 weeks or without hypothermia treatment or syndromal diseases or with malformations were excluded.
  • Further, children without consent to research use were excluded.

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • University Children's hospital Zurich

    Zurich, 8044

Other trials in Switzerland

About this study

Official title: Evaluation of Perinatal Risk Factors for Hypoxic-ischaemic Encephalopathy (HIE) and Their Influence on Severity of Encephalopathy During and After Hypothermia Therapy

The first aim of this study is to analyse perinatal risk factors leading to hypoxic ischaemic encephalopathy in term and near term neonates born in Switzerland who were admitted to the neonatal and intensive care units offering hypothermia therapy.

Further, investigators would like to analyse the influence of these perinatal risk factors on the severity of encephalopathy during and after hypothermia therapy.

Read the detailed description

Encephalopathy of the neonate could have different aetiologies. Perinatal asphyxia leading to hypoxia-ischaemia is frequent ,1-2 per 1000 life born neonates are affected. Hypoxic ischaemic encephalopathy is one of the most important causes for adverse neurodevelopmental outcome, cerebral palsy, epilepsy and hearing and vision deficiencies in term and near term neonates. Til now, hypothermia therapy is the only therapy reducing the risk of adverse neurodevelopmental outcome and is nowadays standard of care. In this study investigators would like to analyse perinatal risk factors causing HIE and their influence on the Sarnat Score on day 1 and 3 of life (during hypothermia therapy) and on day 4 of life (after hypothermia therapy).

Being tested
risk factors
Keywords
hypothermia therapy, perinatal asphyxia
Medical subject headings
Hypoxia-Ischemia, Brain

What participants receive

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

  • risk factorsOther

    investigators will analyze if certain risk factors will influence the progression of the encephalopathy

What is being measured

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

  1. Number of participants with either antepartal or intrapartal risk factors leading to hypoxic ischaemic encephalopathy and influence of these risk factors on sarnat staging during and after hypothermia therapy

    The investigators evaluate the incidence of the known antepartal and intrapartal risk factors and analyze if there is a statistically significant difference of the influence of intrapartal or antepartal risk factors on the progression of the encephalopathy during and after hypothermia therapy. The investigators analyze sarnat staging on day one and three as a subject to the forementioned risk factors.

    Measured: 7 days

Timeline

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

  1. First posted15 Jun 2016 (estimated)
  2. Study startJun 2016
  3. Primary completionDec 2017
  4. Study completionDec 2017

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
Retrospective
Enrolment
160 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02800018
Sponsor's protocol ID
2016-00242
Other IDs
2016
Status last verified
May 2018
First submitted
3 Jun 2016
Last updated
2 May 2018
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Scheidegger S, Held U, Grass B, Latal B, Hagmann C, Brotschi B; National Asphyxia and Cooling Register Group. Association of perinatal risk factors with neurological outcome in neonates with hypoxic ischemic encephalopathy. J Matern Fetal Neonatal Med. 2021 Apr;34(7):1020-1027. doi: 10.1080/14767058.2019.1623196. Epub 2019 Jun 4.

    PubMed 31117854

Questions about this trial

What is this clinical trial studying?

An observational study of Hypoxic Ischaemic Encephalopathy, run by University Children's Hospital, Zurich at 1 site in Switzerland.

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 1 inclusion and 2 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 2 May 2018. 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 Switzerland. 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?

Number of participants with either antepartal or intrapartal risk factors leading to hypoxic ischaemic encephalopathy and influence of these risk factors on sarnat staging during and after hypothermia therapy (time frame: 7 days). 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 NCT02800018, 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 2 May 2018.

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