A Study of 2-Iminobiotin in Neonates With Perinatal Asphyxia

Phase 2TerminatedNCT01626924

Neurophyxia B.V.6 enrolled

Overview

In case of insufficient oxygen supply to the brain of a newborn child (perinatal asphyxia), toxic compounds will be formed. These toxic compounds will damage the cells of the brain. 2 Iminobiotin (2 IB) is an investigational medicinal product that is related to vitamin B7. From studies in animals it has been shown that 2-IB may prevent the formation of the toxic compounds. Also it has been shown to be safe in in studies in juvenile animals and in healthy, adult male volunteers. The doctors hope that this will prevent (part of) the potential brain damage that may result from lack of oxygen to the brain. This study is the first study in the target population: newborn with moderate to severe oxygen shortage during birth. In this study the investigators evaluate short term efficacy, safety and pharmacokinetics of 2-Iminobiotin. In the follow-up phase the investigators evaluate the long term efficacy and safety. The study hypothesis is that 2-Iminobiotin will help to decrease the brain damage after oxygen shortage and is indeed safe. The brain damage will be measured both in the first week and during the first two years of life. The study was designed as a study with two parts an open label pilot part (6 patients) and a double-blind randomised part (60 patients). Due to lack of recruitment it was decided in September2014 to stop recruitment after the open label pilot part of the study (6 patients).

Study Type

INTERVENTIONAL

Allocation

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Perinatal Asphyxia

Eligibility

Sex: ALLMax age: 6 Hours

Medical Language ↔ Plain English

Inclusion Criteria: 1. Neonates with ≥ 36 and \<44 weeks gestation with at least one of the following: * Apgar Score ≤ 5 at 10 minutes after birth * Continued need for resuscitation, including endotracheal or mask ventilation at 10 minutes after birth * Acidosis, defined as either umbilical cord pH or any arterial, venous, capillary pH within 60 minutes of birth pH ≤ 7.00 * Acidosis, defined as base deficit ≥ 16 mmol/l in umbilical blood sample or any blood sample within 60 minutes of birth (arterial or venous). 2. The presence of moderate/severe encephalopathy defined as: * Altered state of consciousness (lethargy, stupor, coma) and at least one of the following: * Hypotonia * Abnormal reflexes including oculomotor or papillary abnormalities * Weak or absent suck reflex * Clinical seizures AND * Depression of the background pattern (lower margin≤ 5 µV meaning at least DNV or BS, CLV, FT) or the presence of seizure activity on the aEEG, registered for at least 30 minutes within 6h after birth. 3. Presence in hospital and ability to start treatment within 6h after birth. 4. Informed Consent Form signed before first study-related activity according to local law. 5. Receiving standard therapy without hypothermia. Exclusion Criteria: 1. Major antenatally known- or congenital abnormalities, such as hernia diaphragmatica requiring ventilation. 2. Major antenatally known chromosomal abnormalities, such as trisomy 13 or 18 or neonates with evident syndromal appearances including brain dysgenesis. 3. Severe growth restriction with a birth weight below the 3rd percentile. 4. Inability to insert an indwelling catheter (umbilical venous catheter or percutaneously inserted central catheter, preferably multiple lumen).

Outcomes

Primary Outcomes

The Lac/NAA ratio in the basal ganglia as measured by single or multiple voxel Magnetic Resonance Spectroscopy (MRS).

Proton (1H) MRS of the basal ganglia lactate/N-acetyl aspartate (Lac/NAA) peak-area ratio is considered to be an accurate quantitative biomarker for prediction of neurodevelopmental outcome after Neonatal Encephalopathy (Thayyil et al, 2010). Results will be compared between arms.

Time frame: The MRS will be performed between 3-7 days after birth

The composite endpoint of survival at 48h with a normal aEEG

Electrocortical brain activity is measured by aEEG, starting as soon as possible after birth and before study medication has been initiated and continued until at least 72h after start of treatment. Every 4h the background pattern of the aEEG and the presence of seizures will be recorded in the eCRF. The aEEG will be classified as normal or abnormal at 48h after the start of treatment. Hence, for this primary endpoint, a good outcome is defined as survival in combination with a normal aEEG at 48h. A bad outcome is either death or abnormal aEEG at 48h after start treatment.

Time frame: 48h after start treatment

Secondary Outcomes

MRI: pattern of injury score

Neuro-imaging by Magnetic Resonance Imaging (MRI) between 3 and 7 days following birth. The scoring system used is the pattern of injury score (Rutherford et al, 2010, appendix) in 4 areas of the brain (cortex, basal ganglia and thalamus, white matter and posterior limb of the internal capsule (PLIC)). Abnormal MRI is reported to be a predictor of poor outcome when at least one of following occurs (Rutherford et al, 2010): * Moderate or severe score in basal ganglia and thalamus * Abnormal PLIC * Severe white matter abnormalities Results will be compared between arms.

Time frame: The MRI will be performed between 3-7 days after birth

MRI: DWI (diffusion weighted images): apparent diffusion coefficient (ADC) in basal ganglia and PLIC

Time frame: The MRI will be performed between 3-7 days after birth

aEEG. Background pattern

aEEG background will be evaluated every 4 hours until at least 48 hours after start treatment and also at time point of 48h after birth.

Time frame: Every 4 hours until 48 hours after start treatment

Mortality

Time frame: first 7 days after birth

Length of stay at the level III NICU

Time frame: On the average this is expected to be 4-14 days after birth

Neurodevelopmental status

During the follow-up visits the neurodevelopmental development is measured using age specific standardized tests, including AIMS, BSID-III, CBCL, general movements

Time frame: 3,6,12,18 and 24 months after treatment

Long term safety

During the follow-up period Serious Adverse Events are reported.

Time frame: 3,6,12,18,24 months

Safety during hospitalization period

During the hospitalization period a number of safety parameters are measured and compared between groups, including blood tests (blood gas, haematology, biochemistry), urinalysis, vital signs, fluid balance, clinical evaluation, local tolerance, growth parameters, EEG, ECG. Also number and kind of Adverse Events and Serious Adverse Events will be compared between arms.

Time frame: Participants will be followed up for the duration of stay at hospital after birth (hospitalization period), on the average this will be 2-4 weeks

Pharmacokinetics during the treatment phase

Pharmacokinetic parameters to be evaluated include: * Cmax (observed maximum plasma concentration) * AUC0-4h (area under the plasma concentration-time curve from time 0 to 4h after administration) * AUC0-∞ (area under the plasma concentration-time curve from time 0 to infinity) * T(end of infusion) (time at maximum plasma concentration). * t1/2 (terminal elimination half-life) * CL (clearance) * V (volume of distribution)

Time frame: From start of treatment untill right after last treatment has been given (20h15min after start treatment)

Neurological status as assessed by full neurological examination

Full neurological examination includes: Prechtl state, Higher cortical functions, Pupillary reflexes right,Pupillary reflexes left, corneal reflex right, corneal reflex left, optokinetic reflexes, nystagmus, facial symmetry, tone, spontaneous movements right, spontaneous movements left, tendon reflexes, ankle clonus right, ankle clonus left, sucking reflex, grasp reflex right, grasp reflex left, moro reflex right, moro reflex left, glabella reflex, snout reflex, palmomental reflex right, palmomental reflex left. Outcomes will be compared between arms

Time frame: at discharge from level III NICU on the average this will 7-14 days after birth.

aEEG. Time to normal aEEG

The time to normal aEEG will be determined for each subject.

Time frame: Up to 72 hours after start treatment

aEEG. Seizures (clinical and sub-clinical)

The number and severity of clinical and sub-clinical seizures will be evaluated for each subject.

Time frame: 48 hours after start treatment

aEEG. Time to normal sleep-wake cycling

The time to normal sleep-wake cycling will be determined for each subject.

Time frame: up to 72 hours after start treatment