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N/A Completed N=325 Randomized Treatment

TOBY (TOtal Body hYpothermia): a Study of Treatment for Perinatal Asphyxia

Asphyxia Neonatorum · Hypoxia · Encephalopathy · Seizures
Source: ClinicalTrials.gov NCT00147030 ↗
Enrolled (actual)
325
Serious AEs
3.4%
Results posted
May 2016
Primary outcomePrimary: Combined Incidence of Mortality and Severe Neurodevelopmental Disability in Survivors — 74; 86 participants

Summary

Hypothesis: Prolonged whole body cooling in term infants with perinatal asphyxial encephalopathy reduces death and severe neurodevelopmental disability. This study aims to determine whether whole body cooling to 33-34°C is a safe treatment that improves survival, without severe neurological or neurodevelopmental impairments at 18 months, of term infants suffering perinatal asphyxial encephalopathy.

Outcome Measures

OutcomeResultp-value
PRIMARY
Combined Incidence of Mortality and Severe Neurodevelopmental Disability in Survivors
74; 86
SECONDARY
Intracranial Haemorrhage
25; 21
SECONDARY
Persistent Hypotension
126; 134
SECONDARY
Pulmonary Haemorrhage
5; 3
SECONDARY
Pulmonary Hypertension
16; 9
SECONDARY
Prolonged Blood Coagulation Time
67; 72
SECONDARY
Culture Proven Sepsis
20; 20
SECONDARY
Necrotising Enterocolitis
1; 0
SECONDARY
Cardiac Arrhythmia
8; 3
SECONDARY
Thrombocytopenia
94; 80
SECONDARY
Major Venous Thrombosis
2; 1
SECONDARY
Renal Failure Treated With Dialysis
0; 0
SECONDARY
Pneumonia
5; 5
SECONDARY
Pulmonary Airleak
9; 3
SECONDARY
Duration of Hospitalisation
12; 13
SECONDARY
Mortality
42; 44
SECONDARY
Severe Neurodevelopmental Disability
32; 42
SECONDARY
Multiple Handicap
21; 33
SECONDARY
Bayley Psychomotor Developmental Index Score (PDI)
27; 37
SECONDARY
Sensorineural Hearing Loss
110; 97
SECONDARY
Epilepsy (Defined as Recurrent Seizures Beyond the Neonatal Period, Requiring Anticonvulsant Therapy at the Time of Assessment)
12; 16
SECONDARY
Microcephaly
24; 28

Eligibility Criteria

Inclusion criteria

The infant will be assessed sequentially by criteria A, B and C listed below:

A. Infants =>36 completed weeks gestation admitted to the Neonatal Intensive Care Unit (NICU) with at least one of the following:

  • Apgar score of = 16 mmol/L in umbilical cord or any blood sample (arterial, venous or capillary) within 60 minutes of birth

Infants that meet criteria A will be assessed for whether they meet the neurological abnormality entry criteria (B) by trained personnel:

B. Moderate to severe encephalopathy, consisting of altered state of consciousness (lethargy, stupor or coma) AND at least one of the following:

  • hypotonia
  • abnormal reflexes including oculomotor or pupillary abnormalities
  • absent or weak suck
  • clinical seizures

Infants that meet criteria A & B will be assessed by amplitude-integrated electroencephalogram (aEEG) (read by trained personnel):

C. At least 30 minutes duration of amplitude integrated EEG recording that shows abnormal background aEEG activity or seizures. There must be one of the following:

  • normal background with some seizure activity
  • moderately abnormal activity
  • suppressed activity
  • continuous seizure activity

Exclusion criteria

  • Infants expected to be > 6 hours of age at the time of randomisation
  • Major congenital abnormalities, such as diaphragmatic hernia requiring ventilation, or congenital abnormalities suggestive of chromosomal anomaly or other syndromes that include brain dysgenesis
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT00147030). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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