TOBY: a Study of Treatment for Perinatal Asphyxia

Status Completed

Clinical Trial 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.

Clinical Trial Description

This is a multicentre prospective randomised controlled trial to determine whether a reduction of body temperature by 3-4°C following perinatal asphyxia improves survival without neurodevelopmental disability.

Full term infants will be randomised within 6 hours of birth to either a control group with the rectal temperature kept at 37 ± 0.2°C or to whole body cooling with the rectal temperature kept at 33.5 ± 0.5°C for 72 hours followed by slow rewarming.

The outcome will be assessed at 18 months of age by survival and neurological and neurodevelopmental testing.

Eligibility criteria:

Term infants less than 6 hours after birth with moderate or severe perinatal asphyxia (a combination of clinical and EEG criteria).

Exclusion criteria:

Infants expected to be 6 hours of age at the time of randomisation or infants with major congenital abnormalities.

Intervention:

Intensive care with whole body cooling versus intensive care without whole body cooling (babies are cooled to 33.5°C for 72 hours)

Main Outcomes:

Death and severe neurodevelopmental impairment at 18 months of age

Secondary Outcomes:

Cerebral thrombosis or haemorrhage, persistent hypotension, pulmonary hypertension, abnormal coagulation, arrhythmia and sepsis in the neonatal period. Neurological impairments at 18 months

Number of patients required: 236.

On 30th November 2006, when recruitment closed, 325 babies had been recruited. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00147030
Study type	Interventional
Source	Imperial College London
Contact
Status	Completed
Phase	N/A
Start date	December 2002
Completion date	August 2008

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.