E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 17.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10014594 |
E.1.2 | Term | Encephalitis infection |
E.1.2 | System Organ Class | 100000004862 |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The aim of this study is to find out whether the early use(given within 120 hours of hospitalisation) of IVIG treatment will improve neurological outcomes at 12 months post treatment, for children with encephalitis.
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E.2.2 | Secondary objectives of the trial |
A) To determine if the early administration of IVIG has a beneficial effect on the following:
(i)Clinical and neurological outcomes in children encephalitis at the discharge, and approximately 12 months post randomisation
(ii)Brain imaging findings at approximately 6 months post randomisation
B) To confirm the safety of IVIG treatment for children with encephalitis
C) To determine the proportion of participants with immune mediated encephalitis
D) To determine the effect of IVIG treatment on auto-antibody levels in children with immune mediated encephalitis.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1) 6 weeks to 16 years of age (day before 17th birthday) AND 2) Acute (within 24 hours) or sub-acute (between 24 hours and 4 weeks) onset of altered mental state (reduced or altered conscious level, irritability, altered personality or behaviour, lethargy) not attributable to a metabolic cause AND 3) At least two of:
(a) fever >38oC within 72 hours before or after presentation to hospital (b) brain imaging evidence consistent with encephalitis or immune-mediated encephalopathy that is either new from prior studies or appears acute in onset (c) CSF pleocytosis >4 white blood cells (WBCs)/microlitre (d) generalised or partial seizures not fully attributable to a pre-existing seizure disorder (e) new onset focal neurological signs (including movement disorders) for >6 hours (f) abnormality on EEG that is consistent with encephalitis and not clearly attributable to another cause. AND 4) Parent/guardian/ legal representative/child (if 16 years at the time of enrolment and has capacity to give consent) able to give informed consent and assent (if <16 years and has capacity) |
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E.4 | Principal exclusion criteria |
•high clinical suspicion of bacterial meningitis or TB meningitis (for example: presence of frankly purulent CSF; CSF WBCs >1000/microlitre; bacteria on Gram stain and/or culture) •Traumatic brain injury •Known metabolic encephalopathy •Toxic encephalopathy (i.e. encephalopathy secondary to exposure to intoxicants, including alcohol,prescription or recreational drugs) •hypertensive encephalopathy/posterior reversible encephalopathy syndrome •pre-existing demyelinating disorder; pre-existing antibody mediated CNS disorder; pre-existing CSF diversion •ischaemic or haemorrhagic stroke •children with a contraindication to IVIG or albumin (i.e. history of anaphylactic reaction to either products, known IgA deficiency and history of hypersensitisation) •Known hypercoagulable state •significant renal impairment defined as GFR of 29mls/min/1.73m2 and below (Chronic Kidney Disease Stage 4) •Known hyperprolinaemia •Known to be pregnant •Any other significant disease or disorder which, in the opinion of the Investigator, may either put the participants at risk because of participation in the trial, or may influence the result of the trial, or the participant’s ability to participate in the trial •participants who are actively being followed up in another research trial involving an investigational product thought to have an immunomodulatory or neuroprotective effect •Administration of study drug not feasible within 120 hours of hospital admission as determined by the study team • Any other condition which, in the opinion of the investigator, may interfere with the ability to fulfil study requirements, especially relating to the primary objective of the study (this include plans to be outside the UK for more than 12 months after enrolment)
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary outcome is “Good recovery”, defined by GOS-E-Peds score of 2 or lower, at 12 months from randomisation.This will be analysed using a Generalised Linear Mixed effect model utilising data collected at discharge, 6 and 12 months from randomisation. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
At 12 months post randomisation |
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E.5.2 | Secondary end point(s) |
NEUROLOGICAL
- Glasgow outcome score - Neurological examination findings - Performance using the following questionnaires (i) Glasgow outcome scale extended (pediatric version) GOS-E Peds (ii) Strength and Difficulties Questionnaire (SDQ) (iii) Adaptive Behaviours Assessent System-Second Edition (ABAS-II) (iv) Peds Quality of Life scoring algorithm (v) Gross Motor Function Classification System (GMFCS) (vi) Liverpool Outcome Score - New diagnosis of epilepsy - Anti-epileptic treatment since hospital discharge - Blinded neuropsychologist assessment of cognitive functioning
CLINICAL
- Glasgow coma score - Neurological examination findings - Duration of invasive ventilation (if ventilated) - Length of stay intensive care unit (ICU) stay in a subset of all children admitted to ICU - Duration of hospital admission
IMMUNOLOGICAL
- Auto-antibody testing on serum and/or CSF samples obtained prior to study treatment - Comparison of autoantibody levels in blood and/or CSF (where lumbar puncture is performed as part of routine care) at 6 months post randomisation to levels prior to study treatment
RADIOLOGICAL
Brain MRI at 6 months post randomisation scan to assess the following: - lesion resolution - presence of new lesions - distribution of persisting disease
SAFETY
- Collection of adverse events in the first five days from each dose of study drug - Serious adverse events from receipt of first dose of study drug up to 6 months post randomisation
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
(i) Neurological outcomes:
- At discharge, 6 and 12 months post randomisation
(ii) Clinical outcomes:
- During admission and at 6 and 12 months post randomisation
(iii) Immunological outcomes:
- During admission and at 6 months post randomisation
(iii) Radiological outcome:
- At six months post randomisation
(iv) Safety outcomes:
- Up to six months post randomisation |
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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 | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
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) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
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 | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 30 |
E.8.5 | The trial involves multiple Member States | No |
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 | No |
E.8.7 | Trial has a data monitoring committee | No |
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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The end of trial will be after processing of the last laboratory sample for the last participant of the trial. |
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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 | 5 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 1 |
E.8.9.2 | In all countries concerned by the trial years | 5 |
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 | 1 |