E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Neonatal Seizures in Hypoxic Ischemic Encephalopathy |
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E.1.1.1 | Medical condition in easily understood language |
Seizures in the newborn following a birth asphxia |
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E.1.1.2 | Therapeutic area | Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 15.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10061197 |
E.1.2 | Term | Neonatal seizures |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Stage 1
• To estimate the optimal dose of bumetanide for the treatment of neonatal seizures not responding to the first dose phenobarbitone. This optimum dose will be that which achieves the maximum seizure reduction with an acceptable safety profile when used in addition to standard therapy (second dose of phenobarbitone) in > 50% of patients
Stage 2
• To determine the pharmacokinetics of bumetanide when given at the optimal dose as an add-on to phenobarbitone in babies with HIE and seizures not controlled by phenobarbitone
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E.2.2 | Secondary objectives of the trial |
• To assess the feasibility of neonatal seizure treatment with bumetanide in babies with HIE and seizures that are not responding to a first dose of phenobarbitone.
• To assess whether bumetanide reduces the need for rescue medication.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male or female term baby with gestational age of 37-43 weeks and postnatal age <48 hours
2. One or more of the following:
APGAR score < 5 at 5 mins.
Umbilical cord or first arterial blood sample pH < 7.1 or base deficit >16 mmol/L.
Postnatal resuscitation still required 10 minutes after birth
3. Clinical evolving encephalopathy
4. Received one dose of standard anticonvulsive therapy (phenobarbitone, 20mg/kg) for clinical or electrographic seizures.
5. EEG: equal to or more than 3 min cumulative seizures, or 2 or more seizures of >30 sec duration over a 2 hr period within the first 48 hr of life and after administration of one standard (20mg/kg) dose of phenobarbitone
6. Written informed consent of parent or guardian.
7. EEG monitoring has commenced within the first 48 hours of birth |
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E.4 | Principal exclusion criteria |
1. Suspected or confirmed brain malformation, inborn error of metabolism, genetic syndrome, or major congenial malformation
2. Congenital (in utero) infection (TORCH) if known.
3. Babies who have received diuretics such as furosemide or bumetanide in routine clinical management within the last 24 hours
4. On any other anticonvulsive medication other than phenobarbitone or or bolus of midazolam / pentobarbitone for intubation.
6. Severe electrolyte depletion (Na <120 mmol/L, K <3.0 mmol/L)
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E.5 End points |
E.5.1 | Primary end point(s) |
Stage 1
Efficacy:
1. Defined as reduction of electrographic seizure burden by ≥80% within hours 3 and 4 after the first bumetanide administration compared to the baseline; a 2 hour epoch immediately prior to the first Bumetanide administration
2. No need for rescue AED within 48 hours
Safety: acceptable safety profile defined as
1. Absence of Suspected Unexpected Serious Adverse Reactions (SUSARs)
2. Serious Adverse Reactions (SAR) which are at least probably related in <10%
3. Clinically acceptable frequency of adverse reactions
I. Severe hypokalaemia (<2.8mmol/l) and/or ECG changes in <10%
II. Severe dehydration (dehydration with hypotension (mean BP< 35mmHg persistent > 1 hour) which requires inotropic support in <10%)
Stage 2
1. PK measurements (bumetanide at the optimal dose) |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Stage 1
Efficacy:
1. Evaluated at hours 3 and 4 after the first bumetanide administration
2. Need for rescue AED evaluated at 48 hours after the first bumetanide administration
Safety: acceptable safety profile continuously evaluated during the trial
Stage 2
1. PK measurements (bumetanide at the optimal dose) analysis completed at the end of the trial. |
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E.5.2 | Secondary end point(s) |
Stage 1
1. PK measurements
2. Overall seizure control within the first 24 hr after bumetanide administration evaluated after the end of trial
Stage 2
1. Safety of bumetanide in babies with HIE
2. Overall seizure control within the first 24 hr after bumetanide administration evaluated after the end of trial
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Stage 1
1. PK measurements analysis completed at the end of the trial.
2. Overall seizure control within the first 24 hr after bumetanide administration evaluated after the end of trial
Stage 2
1. Safety of bumetanide in babies with HIE continuously evaluated during the trial
2. Overall seizure control within the first 24 hr after bumetanide administration evaluated after the end of trial
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | Yes |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | Yes |
E.7.1.3.1 | Other trial type description |
Active substance already used off label in clinical practice, trial is for new indication |
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E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 10 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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Neurological Assessment
Hearing test
End of the interventional phase (treatment phase) defined as the hearing test of the last baby. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |