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Neonatal SeizurePhase 3NCT03602118

Study to Evaluate Phenobarbital Sodium Injection for the Treatment of Neonatal Seizures

A Phase 3 study testing Phenobarbital Sodium Injection in people with Neonatal Seizure, run by PharPoint Research, Inc..

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This is a randomized, double-blind, parallel-group, Phase 3 study to evaluate the efficacy of the administration of phenobarbital Sodium Injection, United States Pharmacopeia, (USP), in participants who have suffered from a clinical seizure. Read more about this study

Who is it for?
Ages 1 day to 28 days
Conditions the study is for
Neonatal Seizure
What is being tested?
Phenobarbital Sodium Injection
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
Nov 2019to 1 Aug 2021
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 1 day to 28 days
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Parental informed consent
  • Infants born at ≥ 35 + 0/7 weeks gestational age AND age 0-28 days after birth
  • Has evidence of an electrographic seizure lasting at least 10 seconds
  • Undergoing continuous electroencephalogram, (EEG), monitoring, including infants with hypoxic-ischemic encephalopathy concurrently treated with hypothermic cooling

Who cannot join

  • If the seizures are solely due to a transient abnormality, easily correctable, and unlikely to recur (for example, transient electrolyte abnormalities)
  • If the infant has been diagnosed with or there is a strong suspicion of an inborn error of metabolism, significant brain malformation, or microcephaly (< 3rd percentile)
  • If the infant has been diagnosed with an intrauterine viral infection
  • If the infant is not expected to survive to discharge

About this study

Official title: A Randomized, Double-blind, Parallel Group, Phase 3 Study to Evaluate the Efficacy of Phenobarbital Sodium Injection for the Treatment of Neonatal Seizures

This is a randomized, double-blind, parallel-group, Phase 3 study to evaluate the efficacy of the administration of phenobarbital Sodium Injection, United States Pharmacopeia, (USP), in participants who have suffered from a clinical seizure. As neonatal seizures can have long-term adverse effects, including death, placebo-controlled studies are not appropriate for this population. This study is designed to show phenobarbital is effective at preventing subsequent seizures by demonstrating greater efficacy at the higher (40 mg/kg) dose compared to the lower dose (20 mg/kg). It is important to note that, although phenobarbital is not approved for the treatment of neonatal seizures, it is commonly used for this indication and is considered the first-line therapy in the US and by the World Health Organization. The minimum recommended dose of phenobarbital used to treat neonatal seizures is 20 mg/kg. Therefore, the lower dose of phenobarbital used in this study is considered an "effective" dose for the treatment of neonatal seizures. The design of this study allows for assessment of the minimum recommended dose with the maximum recommended dose to show the increased efficacy of the high dose in various measures of reduction in seizures.

Read the detailed description

This is a randomized, double-blind, parallel-group, Phase 3 study to evaluate the efficacy of the administration of Phenobarbital Sodium Injection, USP in participants who have suffered from a clinical seizure. As neonatal seizures can have long-term adverse effects, including death, placebo-controlled studies are not appropriate for this population. This study is designed to show phenobarbital is effective at preventing subsequent seizures by demonstrating greater efficacy at the higher (40 mg/kg) dose compared to the lower dose (20 mg/kg). It is important to note that, although phenobarbital is not approved for the treatment of neonatal seizures, it is commonly used for this indication and is considered the first-line therapy in the United States, (US), and by the World Health Organization. The minimum recommended dose of phenobarbital used to treat neonatal seizures is 20 mg/kg. Therefore, the lower dose of phenobarbital used in this study is considered an "effective" dose for the treatment of neonatal seizures. The design of this study allows for assessment of the minimum recommended dose with the maximum recommended dose to show the increased efficacy of the high dose in various measures of reduction in seizures.

Study participants undergoing electrographic or electroclinical seizures lasting 10 seconds or longer will be randomized in a 1:1 fashion between the 2 treatment arms. Participants will receive either a 20-mg/kg or 40-mg/kg loading dose of Phenobarbital Sodium Injection, USP upon confirmation that the seizure was not due to metabolic imbalances. Randomization of participants with hypoxic-ischemic encephalopathy, (HIE), will be stratified between the dosing groups. Participants will further be stratified by treatment group for pharmacokinetics, (PK), analysis timepoints due to the limitations on the number of pharmacokinetics, (PK), samples that can be taken from each patient. After cessation of seizures the participants will remain in the hospital for 24 hours for continuous monitoring by electroencephalogram, (EEG).

According to recommended dosing of phenobarbital, participants in the 20-mg/kg treatment arm in whom seizure activity does not resolve after the first dose (20 mg/kg) will be given phenobarbital in 10-mg/kg increments (each hour) until the seizure activity resolves, up to a maximum total dose of 40 mg/kg. If the seizure activity is still not resolved, participants will be given a second-line anticonvulsant. The second-line therapy given will be determined by the attending physician and recorded in the study documentation. Participants in the 40-mg/kg treatment arm in whom seizure activity does not resolve after the initial loading dose of phenobarbital will be given a second-line anticonvulsant. The second therapy given will be determined by the attending physician and recorded in the study documentation.

Being tested
Phenobarbital Sodium Injection
Keywords
clinical seizures,

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Phenobarbital Sodium InjectionDrug

    Also called Phenobarbital Sodium Injection 20 mg, Phenobarbital Sodium Injection 40 mg

    Phenobarbitone Inj, Phenobarbitone SOD, Phenobarbitone Sodium

Study groups in NCT03602118
Study groupRoleWhat they receive
Phenobarbital Sodium Injection 20 mgActive comparatorOnce participants are deemed to be eligible for participation in the study and randomized to the lower dose they will be given a loading dose of phenobarbital 20 mg/kg administered intravenously over the course of 30 minutes.
Receives: Drug: Phenobarbital Sodium Injection
Phenobarbital Sodium Injection 40 mgActive comparatorOnce participants are deemed to be eligible for participation in the study and randomized to the higher dose they will be given a loading dose of phenobarbital 20 mg/kg administered intravenously over the course of 30 minutes. ministered intravenously over the course of 30 minutes.
Receives: Drug: Phenobarbital Sodium Injection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. A change in the number of seizures in neonatal infants after administration of phenobarbital sodium injection

    Once a neonate has been identified as having a seizure by electroencephalogram he/she will be randomized to one of two doses of phenobarbital sodium injection, (20 mg/kg or 40 mg/kg). The number of neonates in each group will be observed for the end of any further seizures, also verified by electroencephalogram. In addition to observing when all seizure activity ended after the initial loading dose, the number of infants requiring a second dose of phenobarbital or second-line anti-convulsant therapy to treat unresolved or subsequent seizures will be observed in each randomization group, (phenobarbital sodium injection 20mg/kg or 40mg/kg) following the initial loading dose.

    Measured: The 24 hour period after the initial loading dose of pheonobarbital sodium injection is given.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Jul 2018
  2. Study startNov 2019 (estimated)
  3. Primary completion1 May 2021 (estimated)
  4. Study completion1 Aug 2021 (estimated)

Why it stopped: Sponsor withdrawing the subject IND

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
This is a 1:1 randomized, double-blind, parallel-group, Phase 3 study.
Masking
Double blind
Who is masked
Care provider, Investigator
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03602118
Sponsor's protocol ID
1021.121.039.00
Status last verified
Aug 2019
First submitted
17 Jul 2018
Last updated
28 Aug 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Phenobarbital Sodium Injection in people with Neonatal Seizure, run by PharPoint Research, Inc..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 28 Aug 2019. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

A change in the number of seizures in neonatal infants after administration of phenobarbital sodium injection (time frame: The 24 hour period after the initial loading dose of pheonobarbital sodium injection is given.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Aug 2019.

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