The Effect of Stimulating Substances on Brain Activity of Preterm Infants

The recruitment status of this study is unknown because the information has not been verified recently.
Verified April 2011 by Medical University of Vienna.
Recruitment status was  Recruiting
Information provided by:
Medical University of Vienna Identifier:
First received: April 27, 2011
Last updated: April 28, 2011
Last verified: April 2011

Introduction: Methylxanthines and doxapram have been widely used for the treatment of apneas of prematurity. Both substances have effects on the central nervous system. While there are data available concerning the use of caffeine (the methylxanthine used at our NICU) even proposing a positive effect on neurodevelopmental outcome of very preterm infants, there are data which suggest a negative effect of the central stimulants doxapram on longterm outcome in this group of infants. Nevertheless concerning both medications only few studies have been published and only scarce data are available concerning the effect of these medications on brain activity of very preterm infants until now.

The aim of this study: is the assessment of the effect of stimulating substances on brain activity of preterm infants born below 30 weeks of gestation and their longterm neurodevelopmental follow-up.

Methods: This study is a prospective study including preterm infants born below 30 weeks of gestational age. Brain activity is measured by one-channel amplitude-integrated EEG (aEEG). The first aEEG measurement is performed without caffeine and/or doxapram medication. At least one hour of brain activity is registrated. The second measurement is done at least 24 hours after the start of caffeine and/ or doxapram treatment.

The percentage of different background patterns, the occurrence and duration of sleep-wake-cycling, and the occurrence and duration of seizures is assessed and analysed. Neurodevelopmental outcome is assessed at one and two years of corrected age by assessment of the Bayley Scales of Infant Development II and standardized clinical neurological examination.

Apneas of Prematurity

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: The Effect of Stimulating Substances on Brain Activity Measured by Amplitude-integrated EEG and Long-term Neurodevelopmental Outcome of Preterm Infants Born Below 30 Weeks of Gestation

Resource links provided by NLM:

Further study details as provided by Medical University of Vienna:

Estimated Enrollment: 60
Study Start Date: June 2009
Estimated Study Completion Date: November 2012
Primary Completion Date: November 2010 (Final data collection date for primary outcome measure)
Caffeine group
Premature infants below 30 weeks of gestation who receive Caffeine treatment
Caffeine and Doxapram group
Premature infants below 30 weeks of gestation who receive Caffeine and Doxapram treatment
Group with no treatment
Premature infants below 30 weeks of gestation with no stimulating treatment


Ages Eligible for Study:   23 Weeks to 30 Weeks
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Preterm infants born below a gestational age of 30 weeks


Inclusion Criteria:

see above

Exclusion Criteria:

  • intraventricular hemorrhage
  • posthaemorrhagic hydrocephalus
  • cerebral infection
  • cerebral malformation
  Contacts and Locations
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Please refer to this study by its identifier: NCT01344317

Contact: Christine Czaba, MD 004340400 ext 2930
Contact: Katrin Klebermaß-Schrehof, Md 004340400 ext 2930

Medical University of Vienna Recruiting
Vienna, Austria, 1090
Contact: Arnold Pollak, MD, PhD    004340400 ext 3224   
Principal Investigator: Christine Czaba, MD         
Sub-Investigator: Katrin Klebermaß-Schrehof, MD         
Sub-Investigator: Manfred Weninger, MD, PhD         
Medical University of Vienna, Department of Pediatrics and Adolescent Medicine, Neonatology Completed
Vienna, Austria, 1090
Sponsors and Collaborators
Medical University of Vienna
Principal Investigator: Manfred Weninger, MD, PhD Medical University of Vienna
  More Information

No publications provided

Responsible Party: Arnold Pollak, MD, PhD, Medical University of Vienna Identifier: NCT01344317     History of Changes
Other Study ID Numbers: Nationalbankprojekt Nr.13660
Study First Received: April 27, 2011
Last Updated: April 28, 2011
Health Authority: Austria: Ethikkommission processed this record on October 08, 2015