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CompletedNCT03354208AAMBIUpdated Jan 12, 2021

Asphyxia Associated Metabolite Biomarker Investigation (AAMBI)

An observational study in Asphyxia Neonatorum, sponsored by Life Science Inkubator. Completed at 4 sites in Turkey. Open to participants aged 0 Hours to 2 Hours, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-01-12.

Sponsored by Life Science Inkubator · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
155
Ages
0 Hours to 2 Hours
Sex
All
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Study summary

Verification of biomarkers in a human population for their ability to diagnose the severity of neonatal asphyxia. These biomarkers linked to asphyxia have been identified in animal studies.

Read the detailed description

The aim of the study is to verify the application of combinations of several laboratory parameters in early postnatal blood samples, for identification of infants, who will suffer from early abnormal neonatal neurological outcome, in a population at risk.

The population at risk is defined as term and late preterm (>36 weeks of gestation) human infants following perinatal hypoxia-ischemia with or without postnatal resuscitation.

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Conditions studied

  • Asphyxia Neonatorum

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Keywords

  • biomarkers
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In context

Asphyxia Neonatorum

106 studies on the registry are indexed under Asphyxia Neonatorum; 19 are open to participants now.

This study's enrollment of 155 is below the median of 200 across 27 observational studies indexed under Asphyxia Neonatorum.

Browse Asphyxia Neonatorum studies →

Lead sponsor

Life Science Inkubator is the lead sponsor of 2 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
0 Hours to 2 Hours
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Infants at risk for perinatal hypoxic-ischemic brain injury

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Group 1: inclusion criteria fulfilled for hypothermia treatment Group 2: Infants with suspected perinatal brain injury due to one of the followings

  • Perinatal hypoxia-ischemia (defined as a perinatal acidosis indicated by a pH≤7.10 or a base excess ≤-12mmol/l in umbilical cord blood or early postnatal blood collected at \<90min of age (outborn patients)
  • 5min APGAR-score ≤ 5
  • Need for resuscitation after birth for >1 min. after birth, positive pressure respiratory support with face mask or endotracheal tube, or cardiac compressions Group 3: UApH >7,25, and adaptation disorder of the newborn and need of postnatal clinical surveillance

Exclusion criteria

Exclusion Criteria:

gestational age \< 36 weeks

  • age at time of screening >2,5h
  • congenital malformation
  • missing or invalid informed parental consent
  • unsuccessful resuscitation
  • infant considered not-viable
  • decision for palliative care only
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
155 participants (actual)
Target follow-up
14 Days
Patient registry
Yes
Biospecimen retention
Samples without dna

Groups and cohorts

  • Group 1

    patients with hypoxic-ischemic encephalopathy (HIE) receiving hypothermia therapy

    Other: blood sampling

  • Group 2

    patients with suspected HIE, non-confirmed

    Other: blood sampling

  • Group 3

    healthy, retrospectively classified as such

    Other: blood sampling

Interventions

  • Otherblood sampling

    small volume blood sampling, according to local laws, is not categorized as intervention (observational study)

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What researchers measure

Primary outcomes

  1. abnormal short-term outcome (NE)

    All patients are classified as abnormal short-term outcome (neonatal encephalopathy, NE) or normal short term outcome (no encephalopathy) by using clinical data, particularly Thompson score. For Group 1 and group 2 patients outcome classification will be additionally confirmed by using cranial ultrasound or MRI (including severe ischemia based on DWI or thalamic or cerebellar bleeding or arterial infarction or IVH\>2° according to Papile, thalamic ischemia or severe cerebral edema) or seizure activity or burst suppression on aEEG or persistingly abnormal aEEG background pattern after complete rewarming. Bloodplasma samples will be analysed by a metabolomics approach using the p180-kit (Biocrates, Innsbruck, Austria). Metabolite concentrations or combinations thereof will be compared to the outcome described above in order to identify the most suitable metabolites to be used for early detection of NE in newborn infants.

    Time frame: 14 days for clinical diagnosis

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Study locations

4 sites
  • Cukurova University
    Adana, 01330, Turkey
  • University of Firat
    Elazığ, Turkey
  • Özel Güngören Hastanesi
    İstanbul, 34164, Turkey
  • Mersin University School of Medicine
    Mersin, 33343, Turkey
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2016 to primary completion in Dec 2017, 14 months.

Of 16 observational studies under Asphyxia Neonatorum, half reached primary completion within 32 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 47. This study's 14 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 22, 2017
First posted
Nov 27, 2017
StartActual
Oct 2016
Primary completionActual
Dec 27, 2017
CompletionActual
Dec 27, 2017
Last update
Jan 12, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 12, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03354208
Lead sponsor
Life Science Inkubator
Collaborators
Cukurova University, University Children's Hospital Tuebingen
Responsible party
Sponsor
First posted
Nov 27, 2017
Start date
Oct 2016
Primary completion
Dec 27, 2017
Completion
Dec 27, 2017
Last update
Jan 12, 2021

Study contacts

Ron Meyer
study director · Life Science Inkubator Betriebs GmbH & Co. KG

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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